Janet F. Werker

PhD, BA, MA

Affiliate Investigator, BC Children's Hospital
University Killam Professor and Canada Research Chair, Division of Arts, Department of Psychology, University of British Columbia

My research focuses on describing and understanding the critical first steps in infancy that launch the process of language acquisition. Using both behavioral and neuroimaging tasks, I study infants (from birth) and young children to reveal the perceptual biases humans have at the beginning of life, how perception is supported by motor processes, and how those are sculpted through maturation, experience, to support later language acquisition and literacy. For more information about my research and a full CV, please visit infantstudies.psych.ubc.ca/director/.

Academic Affiliations

  • Professor, Department of Psychology, Faculty of Arts, University of British Columbia
  • Research Theme: Brain, Behaviour & Development
  • Research Group(s): Mental Health and Behaviour; Visualizing the Brain

Neural indicators of articulator-specific sensorimotor influences on infant speech perception

Proceedings of the National Academy of Sciences

Dawoon Choi and Ghislaine Dehaene-Lambertz and Marcela Pea and Janet F. Werker

DOI: 10.1073/pnas.2025043118

05 / 2021

Preverbal Infants Discover Statistical Word Patterns at Similar Rates as Adults: Evidence From Neural Entrainment.

Psychological science

Choi D and Batterink LJ and Black AK and Paller KA and Werker JF

DOI: 10.1177/0956797620933237 PubMed: 32865487

08 / 2020

The specificity of the neural response to speech at birth

Developmental Science

Lillian May and Judit Gervain and Manuel Carreiras and Janet F. Werker

DOI: 10.1111/desc.12564

05 / 2017

The neural correlates of processing scale-invariant environmental sounds at birth.

Gervain J and Werker JF and Black A and Geffen MN

DOI: 10.1016/j.neuroimage.2016.03.001 PubMed: 26956907

06 / 2016

Second label learning in bilingual and monolingual infants

Developmental Science

Padmapriya Kandhadai and D. Geoffrey Hall and Janet F. Werker

DOI: 10.1111/desc.12429

04 / 2016

Sensorimotor influences on speech perception in infancy.

Bruderer AG and Danielson DK and Kandhadai P and Werker JF

DOI: 10.1073/pnas.1508631112 PubMed: 26460030

11 / 2015

How Do Infants Become Experts at Native-Speech Perception?

Current Directions in Psychological Science

Janet F. Werker and H. Henny Yeung and Katherine A. Yoshida

DOI: 10.1177/0963721412449459

08 / 2012

Prenatal exposure to antidepressants and depressed maternal mood alter trajectory of infant speech perception.

Weikum WM and Oberlander TF and Hensch TK and Werker JF

DOI: 10.1073/pnas.1121263109 PubMed: 23045665

10 / 2012

Critical Periods in Speech Perception: New Directions

Annual Review of Psychology

Janet F. Werker and Takao K. Hensch

DOI: 10.1146/annurev-psych-010814-015104

01 / 2015

Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study

Journal of Child Language

Melanie Soderstrom and Joscelin Rocha-Hidalgo and Luis E. Muoz and Agata Bochynska and Janet F. Werker and Barbora Skarabela and Amanda Seidl and Yana Ryjova and Jennifer L. Rennels and Christine E. Potter and Markus Paulus and Mitsuhiko Ota and Nonah M. Olesen and Karli M. Nave and Julien Mayor and Alia Martin and Lauren C. Machon and Casey Lew-Williams and Eon-Suk Ko and Hyunji Kim and Natalia Kartushina and Marina Kammermeier and Andrew Jessop and Jessica F. Hay and Naomi Havron and Erin E. Hannon and J. Kiley Hamlin and Nayeli Gonzalez-Gomez and Anja Gampe and Tom Fritzsche and Michael C. Frank and Samantha Durrant and Catherine Davies and Cara Cashon and Krista Byers-Heinlein and Veronica Boyce and Alexis K. Black and Christina Bergmann and Laura Anderson and Mohammed K. Alshakhori and Ali H. Al-Hoorie and Angeline S. M. Tsui

DOI: 10.1017/S0305000924000254

09 / 2025

Resting-State Functional Connectivity in Awake Bilingual and Monolingual Infants

OSF

DOI: 10.17605/osf.io/s87wj

Musical Sophistication and Multilingualism: Effects on Arcuate Fasciculus Characteristics

Human Brain Mapping

Anja-Xiaoxing Cui and Sarah N. Kraeutner and Olga Kepinska and Negin Motamed Yeganeh and Nancy Hermiston and Janet F. Werker and Lara A. Boyd

DOI: 10.1002/hbm.70035

10 / 2024

Word Segmentation in Unfamiliar Speech

OSF Registries

DOI: 10.17605/osf.io/7pu2q

Early Lexical Comprehension: Children's Assumptions about the Grammatical Class of First Words

OSF Registries

DOI: 10.17605/osf.io/qrz4p

The role of antonym relationships in toddlers lexical-semantic organization of adjectives

Open Science Framework

DOI: 10.17605/osf.io/szh8a

08 / 2022

Word segmentation in 6-month old infants: neural entrainment to transitional probabilities

Open Science Framework

DOI: 10.17605/osf.io/wamv4

08 / 2022

Methods for Preregistration

Open Science Framework

DOI: 10.17605/osf.io/fjdyq

08 / 2022

Assessing Toddlers' Cross-situational Word Learning on an Online Research Platform

Open Science Framework

DOI: 10.17605/osf.io/7djqr

08 / 2022

The role of language experience in bilinguals cross-language lexical-semantic networks

Open Science Framework

DOI: 10.17605/osf.io/kdz64

08 / 2022

Replication: The role of language experience in bilinguals cross-language lexical-semantic networks

Open Science Framework

DOI: 10.17605/osf.io/9nqek

08 / 2022

The effect of a bilingual environment on toddlers lexical-semantic organization of nouns

Open Science Framework

DOI: 10.17605/osf.io/br2d8

08 / 2022

Pre-registration methods

Open Science Framework

DOI: 10.17605/osf.io/7weuv

08 / 2022

ManyBabies 1 CDI Follow-up

Open Science Framework

DOI: 10.17605/osf.io/7z4u6

08 / 2022

Attentional orienting abilities in bilinguals: Evidence from a large infant sample

Open Science Framework

DOI: 10.17605/osf.io/u28sg

08 / 2022

20-month-olds selectively generalize newly learned word meanings based on cues to linguistic community membership

Developmental Science

Drew Weatherhead and Janet F. Werker

DOI: 10.1111/desc.13234

07 / 2022

Infants Mapping of New Faces to New Voices

Child Development

Adriel John Orena and Janet F Werker

DOI: 10.1111/cdev.13616

09 / 2021

The Role of Audiovisual Speech in Fast-Mapping and Novel Word Retention in Monolingual and Bilingual 24-Month-Olds

Brain Sciences

Drew Weatherhead and Maria Arredondo and Loreto Ncar Garcia and Janet F. Werker

DOI: 10.3390/brainsci11010114

01 / 2021

Critical period regulation across multiple timescales

Proceedings of the National Academy of Sciences

Rebecca K. Reh and Brian G. Dias and Charles A. Nelson, III and Daniela Kaufer and Janet F. Werker and Bryan Kolb and Joel D. Levine and Takao K. Hensch

DOI: 10.1073/pnas.1820836117

09 / 2020

Infants use disambiguation to learn new voices

Adriel John Orena and Janet F. Werker

DOI: 10.31234/osf.io/czkhx

07 / 2020

Reduced perceptual narrowing in synesthesia

Proceedings of the National Academy of Sciences

Daphne Maurer and Julian K. Ghloum and Laura C. Gibson and Marcus R. Watson and Lawrence M. Chen and Kathleen Akins and James T. Enns and Takao K. Hensch and Janet F. Werker

DOI: 10.1073/pnas.1914668117

05 / 2020

Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference

Advances in Methods and Practices in Psychological Science

and Michael C. Frank and Katherine Jane Alcock and Natalia Arias-Trejo and Gisa Aschersleben and Dare Baldwin and St{\'{e}}phanie Barbu and Elika Bergelson and Christina Bergmann and Alexis K. Black and Ryan Blything and Maximilian P. Bhland and Petra Bolitho and Arielle Borovsky and Shannon M. Brady and Bettina Braun and Anna Brown and Krista Byers-Heinlein and Linda E. Campbell and Cara Cashon and Mihye Choi and Joan Christodoulou and Laura K. Cirelli and Stefania Conte and Sara Cordes and Christopher Cox and Alejandrina Cristia and Rhodri Cusack and Catherine Davies and Maartje de Klerk and Claire Delle Luche and Laura de Ruiter and Dhanya Dinakar and Kate C. Dixon and Virginie Durier and Samantha Durrant and Christopher Fennell and Brock Ferguson and Alissa Ferry and Paula Fikkert and Teresa Flanagan and Caroline Floccia and Megan Foley and Tom Fritzsche and Rebecca L. A. Frost and Anja Gampe and Judit Gervain and Nayeli Gonzalez-Gomez and Anna Gupta and Laura E. Hahn and J. Kiley Hamlin and Erin E. Hannon and Naomi Havron and Jessica Hay and Miko{\l}aj Hernik and Barbara Hhle and Derek M. Houston and Lauren H. Howard and Mitsuhiko Ishikawa and Shoji Itakura and Iain Jackson and Krisztina V. Jakobsen and Marianna Jarto and Scott P. Johnson and Caroline Junge and Didar Karadag and Natalia Kartushina and Danielle J. Kellier and Tamar Keren-Portnoy and Kelsey Klassen and Melissa Kline and Eon-Suk Ko and Jonathan F. Kominsky and Jessica E. Kosie and Haley E. Kragness and Andrea A. R. Krieger and Florian Krieger and Jill Lany and Roberto J. Lazo and Michelle Lee and Chlo{\'{e}} Leservoisier and Claartje Levelt and Casey Lew-Williams and Matthias Lippold and Ulf Liszkowski and Liquan Liu and Steven G. Luke and Rebecca A. Lundwall and Viola Macchi Cassia and Nivedita Mani and Caterina Marino and Alia Martin and Meghan Mastroberardino and Victoria Mateu and Julien Mayor and Katharina Menn and Christine Michel and Yusuke Moriguchi and Benjamin Morris and Karli M. Nave and Thierry Nazzi and Claire Noble and Miriam A. Novack and Nonah M. Olesen and Adriel John Orena and Mitsuhiko Ota and Robin Panneton and Sara Parvanezadeh Esfahani and Markus Paulus and Carolina Pletti and Linda Polka and Christine Potter and Hugh Rabagliati and Shruthilaya Ramachandran and Jennifer L. Rennels and Greg D. Reynolds and Kelly C. Roth and Charlotte Rothwell and Doroteja Rubez and Yana Ryjova and Jenny Saffran and Ayumi Sato and Sophie Savelkouls and Adena Schachner and Graham Schafer and Melanie S. Schreiner and Amanda Seidl and Mohinish Shukla and Elizabeth A. Simpson and Leher Singh and Barbora Skarabela and Gaye Soley and Megha Sundara and Anna Theakston and Abbie Thompson and Laurel J. Trainor and Sandra E. Trehub and Anna S. Tr{\o}an and Angeline Sin-Mei Tsui and Katherine Twomey and Katie Von Holzen and Yuanyuan Wang and Sandra Waxman and Janet F. Werker and Stephanie Wermelinger and Alix Woolard and Daniel Yurovsky and Katharina Zahner and Martin Zettersten and Melanie Soderstrom

DOI: 10.1177/2515245919900809

03 / 2020

Prelingual infants discover statistical word patterns at similar rates as adults: evidence from neural entrainment

Dawoon Choi and Laura Batterink and Alexis Black and Ken A. Paller and Janet F. Werker

DOI: 10.31234/osf.io/fuqd2_v1

02 / 2020

Finding phrases: On the role of co-verbal facial information in learning word order in infancy.

PloS one

de la Cruz-Pava I and Gervain J and Vatikiotis-Bateson E and Werker JF

DOI: 10.1371/journal.pone.0224786 PubMed: 31710615

11 / 2019

Coverbal speech gestures signal phrase boundaries: A production study of Japanese and English infant- and adult-directed speech

Language Acquisition

DOI: 10.1080/10489223.2019.1659276

09 / 2019

Who can speak that language? Eleven-month-old infants have language-dependent expectations regarding speaker ethnicity

Developmental Psychobiology

Lillian May and Andrew S. Baron and Janet F. Werker

DOI: 10.1002/dev.21851

09 / 2019

Hub distribution of the brain functional networks of newborns prenatally exposed to maternal depression and SSRI antidepressants.

Depression and anxiety

Rotem-Kohavi N and Williams LJ and Muller AM and Abdi H and Virji-Babul N and Bjornson BH and Brain U and Werker JF and Grunau RE and Miller SP and Oberlander TF

DOI: 10.1002/da.22906 PubMed: 31066992

05 / 2019

Finding Phrases: The Interplay of Word Frequency, Phrasal Prosody and Co-speech Visual Information in Chunking Speech by Monolingual and Bilingual Adults.

Language and speech

de la Cruz-Pava I and Werker JF and Vatikiotis-Bateson E and Gervain J

DOI: 10.1177/0023830919842353 PubMed: 31002280

04 / 2019

Sensorimotor influences on speech perception in pre-babbling infants: Replication and extension of Bruderer et al. (2015).

Psychonomic bulletin & review

Choi D and Bruderer AG and Werker JF

DOI: 10.3758/s13423-019-01601-0 PubMed: 31037603

04 / 2019

Cascading and Multisensory Influences on Speech Perception Development

Mind, Brain, and Education

Dawoon Choi and Alexis K. Black and Janet F. Werker

DOI: 10.1111/mbe.12162

12 / 2018

Alterations in Resting-State Networks Following In Utero Selective Serotonin Reuptake Inhibitor Exposure in the Neonatal Brain.

Biological psychiatry. Cognitive neuroscience and neuroimaging

Rotem-Kohavi N and Williams LJ and Virji-Babul N and Bjornson BH and Brain U and Werker JF and Grunau RE and Miller SP and Oberlander TF

DOI: 10.1016/j.bpsc.2018.08.004 PubMed: 30292808

08 / 2018

Perceptual beginnings to language acquisition

Applied Psycholinguistics

Janet F. WERKER

DOI: 10.1017/s0142716418000152

07 / 2018

Commentary on Perceptual Beginnings to Language Acquisition by Janet Werker

Applied Psycholinguistics

Jenny R. Saffran

DOI: 10.1017/s014271641800022x

07 / 2018

Understanding individual variation in levels of second language attainment through the lens of critical period mechanisms

Bilingualism: Language and Cognition

REBECCA REH and MARIA ARREDONDO and JANET F. WERKER

DOI: 10.1017/s1366728918000263

06 / 2018

PRIMIR on Tone

Frontiers in Psychology

Suzanne Curtin and Janet F. Werker

DOI: 10.3389/fpsyg.2018.01007

06 / 2018

Neural Foundations of Cognition and Language

The Neurobiology of Brain and Behavioral Development

Lindsay C. Bowman and Lara J. Pierce and Charles A. Nelson and Janet F. Werker

DOI: 10.1016/b978-0-12-804036-2.00010-8

Phonological development in first languages

The Routledge Handbook of Contemporary English Pronunciation

DOI: 10.4324/9781315145006-13

11 / 2017

Language Acquisition

Oxford Research Encyclopedia of Psychology

DOI: 10.1093/acrefore/9780190236557.013.56

04 / 2017

The organization and reorganization of audiovisual speech perception in the first year of life

Cognitive Development

D. Kyle Danielson and Alison G. Bruderer and Padmapriya Kandhadai and Eric Vatikiotis-Bateson and Janet F. Werker

DOI: 10.1016/j.cogdev.2017.02.004

03 / 2017

The Role of Auditory and Visual Speech in Word Learning at 18Months and in Adulthood.

Havy M and Foroud A and Fais L and Werker JF

DOI: 10.1111/cdev.12715 PubMed: 28124795

01 / 2017

Does early motor development contribute to speech perception?

Behavioral and Brain Sciences

Dawoon Choi and Padmapriya Kandhadai and D. Kyle Danielson and Alison G. Bruderer and Janet F. Werker

DOI: 10.1017/s0140525x16001308

Acoustic correlates to word order in Infant- and adult directed speech: A cross-linguistic study

The Journal of the Acoustical Society of America

Irene de la Cruz-Pava and Judit Gervain and Michael McAuliffe and Eric Vatikiotis-Bateson and Janet F. Werker

DOI: 10.1121/1.4971125

10 / 2016

INFANTS' USE OF TEMPORAL AND PHONETIC INFORMATION IN THE ENCODING OF AUDIOVISUAL SPEECH.

Canadian acoustics = Acoustique canadienne

Danielson DK and Tam C and Kandhadai P and Werker JF

PubMed: 31057210

09 / 2016

Infants use of temporal and phonetic information in the encoding of audiovisual speech

Journal of the Canadian Acoustic Association

Danielson, D.K., Tam, C., Kandhadai, P., & Werker, J.F. (2016). Infants use of temporal and phonetic information in the encoding of audiovisual speech. Journal of the Canadian Acoustic Association, 44(3), 192-193.

PubMed: 31057210

09 / 2016

Minimal pair word learning and vocabulary size: Links with later language skills

Applied Psycholinguistics

NENAGH KEMP and JULIANNE SCOTT and B. MAY BERNHARDT and CAROLYN E. JOHNSON and LINDA S. SIEGEL and JANET F. WERKER

DOI: 10.1017/s0142716416000199

07 / 2016

Editorial: The systematic effects of bilingualism on children's development

Developmental Science

Ellen Bialystok and Janet F. Werker

DOI: 10.1111/desc.12535

The use of visual information in non-native speech sound discrimination across the first year of life

The Journal of the Acoustical Society of America

D. Kyle Danielson and Padmapriya A. Kandhadai and Janet F. Werker

DOI: 10.1121/1.4920876

04 / 2015

Prenatal antidepressant exposure associated with CYP2E1 DNA methylation change in neonates.

Gurnot C and Martin-Subero I and Mah SM and Weikum W and Goodman SJ and Brain U and Werker JF and Kobor MS and Esteller M and Oberlander TF and Hensch TK

DOI: 10.1080/15592294.2015.1026031 PubMed: 25891251

Experience-independent effects of matching and non-matching visual information on speech perception

The Journal of the Acoustical Society of America

D. Kyle Danielson and Alison J. Greuel and Padmapriya Kandhadai and Janet F. Werker

DOI: 10.1121/1.4900176

10 / 2014

Infants track word forms in early word-object associations.

Zamuner TS and Fais L and Werker JF

DOI: 10.1111/desc.12149 PubMed: 24576138

07 / 2014

Category-Specific Processing of Scale-Invariant Sounds in Infancy

PLoS ONE

Judit Gervain and Janet F. Werker and Maria N. Geffen

DOI: 10.1371/journal.pone.0096278

05 / 2014

Culture as a binder for bilingual acquisition

Trends in Neuroscience and Education

Padmapriya Kandhadai and D. Kyle Danielson and Janet F. Werker

DOI: 10.1016/j.tine.2014.02.001

03 / 2014

Can a Click be a Word?: Infants' Learning of Non-Native Words

Infancy

Lillian May and Janet F. Werker

DOI: 10.1111/infa.12048

03 / 2014

Analyzing the resting state functional connectivity in the human language system using near infrared spectroscopy

Frontiers in Human Neuroscience

Behnam Molavi and Lillian May and Judit Gervain and Manuel Carreiras and Janet F. Werker and Guy A. Dumont

DOI: 10.3389/fnhum.2013.00921

Perceptual narrowing during infancy: A comparison of language and faces

Developmental Psychobiology

Daphne Maurer and Janet F. Werker

DOI: 10.1002/dev.21177

11 / 2013

Visual and sensori-motor influences on speech perception in infancy

The Journal of the Acoustical Society of America

D. Kyle Danielson and Alison J. Greuel and Janet F. Werker

DOI: 10.1121/1.4831572

11 / 2013

Referential Labeling Can Facilitate Phonetic Learning in Infancy

Child Development

H. Henny Yeung and Lawrence M. Chen and Janet F. Werker

DOI: 10.1111/cdev.12185

11 / 2013

Lexicon structure and the disambiguation of novel words: Evidence from bilingual infants

Cognition

Krista Byers-Heinlein and Janet F. Werker

DOI: 10.1016/j.cognition.2013.05.010

09 / 2013

Lip Movements Affect Infants Audiovisual Speech Perception

Psychological Science

H. Henny Yeung and Janet F. Werker

DOI: 10.1177/0956797612458802

05 / 2013

Inner speech captures the perception of external speech.

Scott M and Yeung HH and Gick B and Werker JF

DOI: 10.1121/1.4794932 PubMed: 23556693

04 / 2013

Speech Perception in Infancy

Oxford Handbooks Online

Janet F. Werker and Judit Gervain

DOI: 10.1093/oxfordhb/9780199958450.013.0031

03 / 2013

Prosody cues word order in 7-month-old bilingual infants

Nature Communications

Judit Gervain and Janet F. Werker

DOI: 10.1038/ncomms2430

02 / 2013

When does native language input affect phonetic perception? The precocious case of lexical tone

Journal of Memory and Language

H. Henny Yeung and Ke Heng Chen and Janet F. Werker

DOI: 10.1016/j.jml.2012.09.004

02 / 2013

Valproate reopens critical-period learning of absolute pitch

Frontiers in Systems Neuroscience

Judit Gervain and Bradley W. Vines and Lawrence M. Chen and Rubo J. Seo and Takao K. Hensch and Janet F. Werker and Allan H. Young

DOI: 10.3389/fnsys.2013.00102

Age-related sensitive periods influence visual language discrimination in adults

Frontiers in Systems Neuroscience

Whitney M. Weikum and Athena Vouloumanos and Jordi Navarra and Salvador Soto-Faraco and Nria Sebastin-Galls and Janet F. Werker

DOI: 10.3389/fnsys.2013.00086

A bilingual advantage in visual language discrimination in infancy.

Sebastin-Galls N and Albareda-Castellot B and Weikum WM and Werker JF

DOI: 10.1177/0956797612436817 PubMed: 22810164

09 / 2012

The development of associative word learning in monolingual and bilingual infants

Bilingualism: Language and Cognition

KRISTA BYERS-HEINLEIN and CHRISTOPHER T. FENNELL and JANET F. WERKER

DOI: 10.1017/s1366728912000417

09 / 2012

Earlier speech exposure does not accelerate speech acquisition.

Pea M and Werker JF and Dehaene-Lambertz G

DOI: 10.1523/jneurosci.6516-11.2012 PubMed: 22895701

08 / 2012

Learning non-adjacent regularities at age 0 ; 7

Journal of Child Language

JUDIT GERVAIN and JANET F. WERKER

DOI: 10.1017/s0305000912000256

08 / 2012

The development of audiovisual speech perception

Multisensory Development

Salvador Soto-Faraco and Marco Calabresi and Jordi Navarra and Janet F. Werker and David J. Lewkowicz

DOI: 10.1093/acprof:oso/9780199586059.003.0009

06 / 2012

Multisensory interactions in speech perception

The New Handbook of Multisensory Processing

Navarra, J., Yeung, H., Werker, J.F., Soto-Faraco, S. (2012). Multisensory interactions in speech perception. In B. Stein. (Ed.). The New Handbook of Multisensory Processes (pp. 207-228). Cambridge, MA: MIT Press.

05 / 2012

Binding at Birth: The Newborn Brain Detects Identity Relations and Sequential Position in Speech

Journal of Cognitive Neuroscience

Judit Gervain and Iris Berent and Janet F. Werker

DOI: 10.1162/jocn_a_00157

03 / 2012

Perceptual foundations of bilingual acquisition in infancy

Annals of the New York Academy of Sciences

Janet Werker

DOI: 10.1111/j.1749-6632.2012.06484.x

03 / 2012

Here's looking at you, baby: What gaze and movement reveal about minimal pair word-object association at 14 months

Laboratory Phonology

Laurel Fais and Janet F. Werker and Bronwyn Cass and Julia Leibowich and Adriano Vilela Barbosa and Eric Vatikiotis-Bateson

DOI: 10.1515/lp-2012-0007

01 / 2012

Perceptual Narrowing of Linguistic Sign Occurs in the 1st Year of Life

Child Development

Stephanie Baker Palmer and Laurel Fais and Roberta Michnick Golinkoff and Janet F. Werker

DOI: 10.1111/j.1467-8624.2011.01715.x

01 / 2012

Discovering speech, words, and mind (review)

Language

Janet F. Werker

DOI: 10.1353/lan.2012.0010

Phonetic category cues in adult-directed speech: Evidence from three languages with distinct vowel characteristics

Psicolgica

Pons, F., Biesanz, J. C., Kajikawa, S., Fais, L., Narayan, C. R., Amano, S., & Werker, J. F. (2012). Phonetic category cues in adult-directed speech: evidence from three different languages with distinct vowel characteristics. Psicolgica. 33, 175-207.

Does the ACC have potential as an index of early speech discrimination ability? A preliminary study in 4-month-old infants with normal hearing.

Small SA and Werker JF

DOI: 10.1097/aud.0b013e31825f29be PubMed: 22785572

Bilingual beginnings as a lens for theory development: PRIMIR in focus

Journal of Phonetics

Suzanne Curtin and Krista Byers-Heinlein and Janet F. Werker

DOI: 10.1016/j.wocn.2010.12.002

10 / 2011

Near-infrared spectroscopy: a report from the McDonnell infant methodology consortium.

Gervain J and Mehler J and Werker JF and Nelson CA and Csibra G and Lloyd-Fox S and Shukla M and Aslin RN

DOI: 10.1016/j.dcn.2010.07.004 PubMed: 22436417

01 / 2011

Auditory Perception of Self-Similarity in Water Sounds

Frontiers in Integrative Neuroscience

Maria N. Geffen and Judit Gervain and Janet F. Werker and Marcelo O. Magnasco

DOI: 10.3389/fnint.2011.00015

Language and the Newborn Brain: Does Prenatal Language Experience Shape the Neonate Neural Response to Speech?

Frontiers in Psychology

Lillian May and Krista Byers-Heinlein and Judit Gervain and Janet F. Werker

DOI: 10.3389/fpsyg.2011.00222

The development of perceptual grouping biases in infancy: a Japanese-English cross-linguistic study.

Yoshida KA and Iversen JR and Patel AD and Mazuka R and Nito H and Gervain J and Werker JF

DOI: 10.1016/j.cognition.2010.01.005 PubMed: 20144456

05 / 2010

The interaction between acoustic salience and language experience in developmental speech perception: evidence from nasal place discrimination

Developmental Science

Chandan R. Narayan and Janet F. Werker and Patrice Speeter Beddor

DOI: 10.1111/j.1467-7687.2009.00898.x

05 / 2010

The Tuning of Human Neonates Preference for Speech

Child Development

Athena Vouloumanos and Marc D. Hauser and Janet F. Werker and Alia Martin

DOI: 10.1111/j.1467-8624.2009.01412.x

03 / 2010

The Roots of Bilingualism in Newborns

Psychological Science

Krista Byers-Heinlein and Tracey C. Burns and Janet F. Werker

DOI: 10.1177/0956797609360758

03 / 2010

Distributional Phonetic Learning at 10 Months of Age

Infancy

Katherine A. Yoshida and Ferran Pons and Jessica Maye and Janet F. Werker

DOI: 10.1111/j.1532-7078.2009.00024.x

01 / 2010

Bilingual beginnings to learning words.

Werker JF and Byers-Heinlein K and Fennell CT

DOI: 10.1098/rstb.2009.0105 PubMed: 19933138

12 / 2009

Infants' learning of novel words in a stochastic environment.

Vouloumanos A and Werker JF

DOI: 10.1037/a0016134 PubMed: 19899918

11 / 2009

Learning words sounds before learning how words sound: 9-Month-olds use distinct objects as cues to categorize speech information

Cognition

H. Henny Yeung and Janet F. Werker

DOI: 10.1016/j.cognition.2009.08.010

11 / 2009

Monolingual, bilingual, trilingual: infants' language experience influences the development of a word-learning heuristic

Developmental Science

Krista Byers-Heinlein and Janet F. Werker

DOI: 10.1111/j.1467-7687.2009.00902.x

09 / 2009

Infant Discrimination of a Morphologically Relevant Word-Final Contrast

Infancy

Laurel Fais and Sachiyo Kajikawa and Shigeaki Amano and Janet Werker

DOI: 10.1080/15250000902994255

07 / 2009

Now you hear it, now you don't: Vowel devoicing in Japanese infant-directed speech

Journal of Child Language

LAUREL FAIS and SACHIYO KAJIKAWA and SHIGEAKI AMANO and JANET F. WERKER

DOI: 10.1017/s0305000909009556

06 / 2009

Fourteen-month-old infants learn similar-sounding words

Developmental Science

Katherine A. Yoshida and Christopher T. Fennell and Daniel Swingley and Janet F. Werker

DOI: 10.1111/j.1467-7687.2008.00789.x

05 / 2009

Bilingual beginnings as a lens for theory development.

The Journal of the Acoustical Society of America

Janet F. Werker and Suzanne Curtin and Krista Byers-Heinlein

DOI: 10.1121/1.4784719

04 / 2009

Perception of vowel length by Japanese- and English-learning infants.

Developmental Psychology

Ryoko Mugitani and Ferran Pons and Laurel Fais and Christiane Dietrich and Janet F. Werker and Shigeaki Amano

DOI: 10.1037/a0014043

01 / 2009

Perception

Handbook of Cultural Developmental Science

Werker, J. F., Maurer, D. M., & Yoshida, K. (2009). Perception. In M. Bornstein (Ed)., Handbook of Cultural Developmental Science (pp. 89-125). New York, NY: Lawrence Erlbaum Associates.

How Infant Speech Perception Contributes to Language Acquisition

Language and Linguistics Compass

Judit Gervain and Janet F. Werker

DOI: 10.1111/j.1749-818x.2008.00089.x

11 / 2008

Articulatory gestures influence the perception of speech.

The Journal of the Acoustical Society of America

Henny Yeung and Mark Scott and Bryan Gick and Janet Werker

DOI: 10.1121/1.4782546

10 / 2008

Bilingualism in infancy: first steps in perception and comprehension

Trends in Cognitive Sciences

Janet F. Werker and Krista Byers-Heinlein

DOI: 10.1016/j.tics.2008.01.008

04 / 2008

Infant speech perception and later language acquisition: Methodological underpinnings

Infant pathways to language: methods, models, and research directions

Werker, J. F., & Fennell, C. T. (2008). Infant speech perception and later language acquisition: Methodological underpinnings. In J. Colombo, P. McCardle, & L. Freund (Eds.), Infant pathways to language: methods, models, and research directions (pp. 85-98). Hillsdale, NJ: Lawrence Erlbaum Associates.

Early word-object associations and later language development

First Language

Barbara May Bernhardt and Nenagh Kemp and Janet F. Werker

DOI: 10.1177/0142723707081652

10 / 2007

Native language governs interpretation of salient speech sound differences at 18 months.

Dietrich C and Swingley D and Werker JF

DOI: 10.1073/pnas.0705270104 PubMed: 17911262

10 / 2007

Age-related changes in sensitivity to native phonotactics in Japanese infants.

Mugitani R and Fais L and Kajikawa S and Werker JF and Amano S

DOI: 10.1121/1.2754063 PubMed: 17927395

09 / 2007

Using Speech Sounds to Guide Word Learning: The Case of Bilingual Infants

Child Development

Christopher T. Fennell and Krista Byers-Heinlein and Janet F. Werker

DOI: 10.1111/j.1467-8624.2007.01080.x

09 / 2007

Unsupervised learning of vowel categories from infant-directed speech.

Vallabha GK and McClelland JL and Pons F and Werker JF and Amano S

DOI: 10.1073/pnas.0705369104 PubMed: 17664424

08 / 2007

The perceptual foundations of phonological development

Oxford Handbooks Online

Suzanne Curtin and Janet F. Werker

DOI: 10.1093/oxfordhb/9780198568971.013.0035

08 / 2007

The Infant's Auditory World: Hearing, Speech, and the Beginnings of Language

Handbook of Child Psychology

Jenny R. Saffran and Janet F. Werker and Lynne A. Werner

DOI: 10.1002/9780470147658.chpsy0202

06 / 2007

The development of phonetic representation in bilingual and monolingual infants

Applied Psycholinguistics

TRACEY C. BURNS and KATHERINE A. YOSHIDA and KAREN HILL and JANET F. WERKER

DOI: 10.1017/s0142716407070257

06 / 2007

Visual language discrimination in infancy.

Weikum WM and Vouloumanos A and Navarra J and Soto-Faraco S and Sebastin-Galls N and Werker JF

DOI: 10.1126/science.1137686 PubMed: 17525331

05 / 2007

Infant-directed speech supports phonetic category learning in English and Japanese

Cognition

Janet F. Werker and Ferran Pons and Christiane Dietrich and Sachiyo Kajikawa and Laurel Fais and Shigeaki Amano

DOI: 10.1016/j.cognition.2006.03.006

04 / 2007

Listening to language at birth: evidence for a bias for speech in neonates

Developmental Science

Athena Vouloumanos and Janet F. Werker

DOI: 10.1111/j.1467-7687.2007.00549.x

03 / 2007

Why voice melody alone cannot explain neonates preference for speech

Developmental Science

Athena Vouloumanos and Janet F. Werker

DOI: 10.1111/j.1467-7687.2007.00551.x

03 / 2007

Discriminating languages by speech-reading

Perception & Psychophysics

Salvador Soto-Faraco and Jordi Navarra and Whitney M. Weikum and Athena Vouloumanos and Nria Sebastin-Galls and Janet F. Werker

DOI: 10.3758/bf03193744

02 / 2007

Age-Related Changes in Sensitivity to Native Phonotactics in Japanese Infants

Vowel devoicing in Japanese infant- and adult-directed speech

The Journal of the Acoustical Society of America

Laurel Fais and Janet Werker and Sachiyo Kajikawa and Shigeaki Amano

DOI: 10.1121/1.4777942

11 / 2006

Cross-language sensitivity to phonotactic patterns in infants.

Kajikawa S and Fais L and Mugitani R and Werker JF and Amano S

DOI: 10.1121/1.2338285 PubMed: 17069323

10 / 2006

Do you hear what I hear? Neural correlates of thought disorder during listening to speech in schizophrenia.

Weinstein S and Werker JF and Vouloumanos A and Woodward TS and Ngan ET

DOI: 10.1016/j.schres.2006.05.011 PubMed: 16806838

09 / 2006

Recognition and Representation of Function Words in English-Learning Infants

Infancy

Rushen Shi and Janet F. Werker and Anne Cutler

DOI: 10.1207/s15327078in1002_5

09 / 2006

Frequency and form as determinants of functor sensitivity in English-acquiring infants.

Shi R and Cutler A and Werker J and Cruickshank M

DOI: 10.1121/1.2198947 PubMed: 16838552

06 / 2006

Cross-Language Sensitivity to Phonotactic Patterns in Infants

Chapter 1. Bilingual Speech Processing in Infants and Adults

Childhood Bilingualism

Janet F. Werker and Whitney M. Weikum and Katherine A. Yoshida

DOI: 10.21832/9781853598715-002

Infant speech perception bootstraps word learning

Trends in Cognitive Sciences

Janet F. Werker and H. Henny Yeung

DOI: 10.1016/j.tics.2005.09.003

11 / 2005

Japanese Listeners' Perceptions of Phonotactic Violations

Language and Speech

Laurel Fais and Sachiyo Kajikawa and Janet Werker and Shigeaki Amano

DOI: 10.1177/00238309050480020301

06 / 2005

The phonetic rhythm/syntax headedness connection: Evidence from Tagalog

The Journal of the Acoustical Society of America

Sonya Bird and Laurel Fais and Janet Werker

DOI: 10.1121/1.4787198

04 / 2005

PRIMIR: A Developmental Framework of Infant Speech Processing

Language Learning and Development

Janet F. Werker and Suzanne Curtin

DOI: 10.1080/15475441.2005.9684216

04 / 2005

Japanese listeners' perceptions of phonotactic violations.

Fais L and Kajikawa S and Werker J and Amano S

PubMed: 16411504

Speech perception as a window for understanding plasticity and commitment in language systems of the brain

Developmental Psychobiology

Janet F. Werker and Richard C. Tees

DOI: 10.1002/dev.20060

Language experience and the organization of brain activity to phonetically similar words: ERP evidence from 14- and 20-month-olds.

Mills DL and Prat C and Zangl R and Stager CL and Neville HJ and Werker JF

DOI: 10.1162/0898929042304697 PubMed: 15509390

10 / 2004

Tuned to the signal: the privileged status of speech for young infants

Developmental Science

Athena Vouloumanos and Janet F. Werker

DOI: 10.1111/j.1467-7687.2004.00345.x

06 / 2004

Adult perceptions of phonotactic violations in Japanese

The Journal of the Acoustical Society of America

Laurel Fais and Sachiyo Kajikawa and Janet Werker and Shigeaki Amano

DOI: 10.1121/1.4780668

05 / 2004

Phonetic representation of frequent function words in 8-month-old infants

The Journal of the Acoustical Society of America

Rushen Shi and Janet Werker and Anne Cutler

DOI: 10.1121/1.4783052

05 / 2004

Patterns of New Word-Object Associations

The Perceptual Acquisition of Phonological Contrasts

Language

Joe Pater and Christine Stager and Janet Feldman Werker

DOI: 10.1353/lan.2004.0141

Infant Attention to Phonetic Detail: Knowledge and Familiarity Effects

Is the integration of heard and seen speech mandatory for infants?

Developmental Psychobiology

Rene N. Desjardins and Janet F. Werker

DOI: 10.1002/dev.20033

Commentary: Reconstructing U-shaped Functions

Journal of Cognition and Development

Werker, J.F., Hall, D.G., & Fais, L. (2004). Reconstruing U-shaped Functions. Journal of Cognition and Development, 5(1), 147-51. [Commentary].

The basis of preference for lexical words in 6-month-old infants

Developmental Science

Rushen Shi and Janet F. Werker

DOI: 10.1111/1467-7687.00305

11 / 2003

Abnormal processing of speech during oddball target detection in schizophrenia.

Ngan ET and Vouloumanos A and Cairo TA and Laurens KR and Bates AT and Anderson CM and Werker JF and Liddle PF

DOI: 10.1016/s1053-8119(03)00385-9 PubMed: 14568459

10 / 2003

Baby steps to learning language

The Journal of Pediatrics

Janet F Werker

DOI: 10.1067/s0022-3476(03)00403-7

10 / 2003

Two-month-old infants match phonetic information in lips and voice

Developmental Science

Michelle L. Patterson and Janet F. Werker

DOI: 10.1111/1467-7687.00271

04 / 2003

Three facial expressions mothers direct to their infants

Infant and Child Development

S.C.F. Chong and Janet F. Werker and James A. Russell and James M. Carroll

DOI: 10.1002/icd.286

The acquisition of language specific phonetic categories in infancy

Proceedings of the International Conference of Phonetic Sciences

Werker, J. F. (2003). The acquisition of language specific phonetic categories in infancy. Proceedings of the International Conference of Phonetic Sciences (pp. 21-26). Adelaide: Causal Productions.

Function words in early speech perception

Proceedings of the 15th International Conference of Phonetic Sciences

Shi, R., Werker, J. F., & Cutler, A. (2003). Function words in early speech perception. Proceedings of the 15th International Conference of Phonetic Sciences (pp. 3009-3012). Adelaide: Causal Productions.

Early word learners' ability to access phonetic detail in well-known words.

Fennell CT and Werker JF

PubMed: 14748446

Early Word Learners' Ability to Access Phonetic Detail in Well-Known Words

Development of Phonetic Categories in Infants Raised in Bilingual and Monolingual Environments

Accessing coarticulatory information

The Journal of the Acoustical Society of America

Suzanne Curtin and Neelam Ladhar and Janet Werker

DOI: 10.1121/1.4779566

11 / 2002

Innate phonetic boundaries revisited (L)

The Journal of the Acoustical Society of America

Richard N. Aslin and Janet F. Werker and James L. Morgan

DOI: 10.1121/1.1501904

10 / 2002

Infants' Ability to Learn Phonetically Similar Words: Effects of Age and Vocabulary Size

Infancy

Janet F. Werker and Christopher T. Fennell and Kathleen M. Corcoran and Christine L. Stager

DOI: 10.1207/15250000252828226

02 / 2002

Infants' Ability to Match Dynamic Phonetic and Gender Information in the Face and Voice

Journal of Experimental Child Psychology

Michelle L. Patterson and Janet F. Werker

DOI: 10.1006/jecp.2001.2644

01 / 2002

Cross-language speech perception: Evidence for perceptual reorganization during the first year of life

Infant Behavior and Development

Janet F Werker and Richard C Tees

DOI: 10.1016/s0163-6383(02)00093-0

01 / 2002

Infant sensitivity to distributional information can affect phonetic discrimination

Cognition

Jessica Maye and Janet F Werker and LouAnn Gerken

DOI: 10.1016/s0010-0277(01)00157-3

01 / 2002

From speech perception to word learning and beyond

The Journal of the Acoustical Society of America

Janet F. Werker

DOI: 10.1121/1.4778462

Are human milk long-chain polyunsaturated fatty acids related to visual and neural development in breast-fed term infants?

Innis SM and Gilley J and Werker J

DOI: 10.1067/mpd.2001.118429 PubMed: 11598600

10 / 2001

Detection of sounds in the auditory stream: event-related fMRI evidence for differential activation to speech and nonspeech.

Vouloumanos A and Kiehl KA and Werker JF and Liddle PF

DOI: 10.1162/089892901753165890 PubMed: 11595101

10 / 2001

Language

Developmental Science

Neville, H., Mehler, J., Newport, E., Werker, J. F., & McClelland, J. (2001). Language [Special issue: The Developing Human Brain]. In M. I. Posner, M. K. Rothbart, M. Farah, & J. Bruer (Eds)., Developmental Science, 4(3), 293-312.

08 / 2001

Six-Month-Old Infants' Preference for Lexical Words

Psychological Science

Rushen Shi and Janet F. Werker

DOI: 10.1111/1467-9280.00312

01 / 2001

Does perceptual learning really contribute to word-learning?

Developmental Science

Werker, J.F., & Patterson, M.L. (2001). Does perceptual learning really contribute to word-learning [Electronic version]? Developmental Science, 4(1), 26-8.

Perceiving speech: A developmental perspective

The Journal of the Acoustical Society of America

Janet F. Werker

DOI: 10.1121/1.4743505

11 / 2000

LANGUAGE:Who's Got Rhythm?

Science

J. F. Werker

DOI: 10.1126/science.288.5464.280

04 / 2000

Developmental Changes in Infant Speech Perception and Early Word Learning: Is There a Link?

Newborn infants sensitivity to perceptual cues to lexical and grammatical words

Cognition

Rushen Shi and Janet F Werker and James L Morgan

DOI: 10.1016/s0010-0277(99)00047-5

09 / 1999

INFLUENCES ON INFANT SPEECH PROCESSING: Toward a New Synthesis

Annual Review of Psychology

Janet F. Werker and Richard C. Tees

DOI: 10.1146/annurev.psych.50.1.509

02 / 1999

Matching phonetic information in lips and voice is robust in 4.5-month-old infants

Infant Behavior and Development

Michelle L Patterson and Janet F Werker

DOI: 10.1016/s0163-6383(99)00003-x

01 / 1999

Acquisition of word-object associations by 14-month-old infants.

Werker JF and Cohen LB and Lloyd VL and Casasola M and Stager CL

DOI: 10.1037//0012-1649.34.6.1289 PubMed: 9823513

11 / 1998

Updates on becoming a native listener

The Journal of the Acoustical Society of America

Janet F. Werker and Judith E. Pegg and Rushen Shi and Christine Stager

DOI: 10.1121/1.422162

05 / 1998

Additive effects of phonetic distinctions in word learning

The Journal of the Acoustical Society of America

Joseph V. Pater and Christine L. Stager and Janet F. Werker

DOI: 10.1121/1.422979

05 / 1998

Phonetic perception and word learning: Evidence for continuous and discontinuous changes

Infant Behavior and Development

Janet F. Werker and Christine L. Stager and Judith E. Pegg

DOI: 10.1016/s0163-6383(98)91456-4

04 / 1998

Matching phonetic information in lips and voice by 4-month-old infants

Infant Behavior and Development

Michelle L. Patterson and Janet F. Werker

DOI: 10.1016/s0163-6383(98)91829-x

04 / 1998

Young infants' perception of lexical and functional categories

Infant Behavior and Development

Rushen Shi and Janet Werker and James Morgan

DOI: 10.1016/s0163-6383(98)91896-3

04 / 1998

Acquisition of word"object associations by 14-month-old infants.

Developmental Psychology

Janet F. Werker and Leslie B. Cohen and Valerie L. Lloyd and Marianella Casasola and Christine L. Stager

DOI: 10.1037/0012-1649.34.6.1289

Neonates attend to perceptual cues to rudimentary grammatical categories

The Journal of the Acoustical Society of America

Rushen Shi and Janet Werker

DOI: 10.1121/1.420952

11 / 1997

The conditioned head turn procedure as a method for testing infant speech perception

Early Development and Parenting

Janet F. Werker and Linda Polka and Judith E. Pegg

DOI: 10.1002/(sici)1099-0917(199709/12)6:3/4u003C171::aid-edp156u003E3.0.co;2-h

09 / 1997

An Exploration of Why Preschoolers Perform Differently Than Do Adults in Audiovisual Speech Perception Tasks

Journal of Experimental Child Psychology

Rene N. Desjardins and John Rogers and Janet F. Werker

DOI: 10.1006/jecp.1997.2379

07 / 1997

Infants listen for more phonetic detail in speech perception than in word-learning tasks.

Stager CL and Werker JF

DOI: 10.1038/41102 PubMed: 9237755

07 / 1997

Adult and infant perception of two English phones

The Journal of the Acoustical Society of America

Judith E. Pegg and Janet F. Werker

DOI: 10.1121/1.420137

4-month-old female infants influenced by visible speech

Infant Behavior and Development

Rene N. Desjardins and Janet F. Werker

DOI: 10.1016/s0163-6383(96)90475-0

04 / 1996

Mothers show special facial expressions when interacting with their infants

Infant Behavior and Development

Janet F. Werker and Selena Chong

DOI: 10.1016/s0163-6383(96)90867-x

04 / 1996

The acquisition of word-object associations in 14-month-olds: Does phonetic similarity make a difference?

Infant Behavior and Development

Christine L. Stager and Janet Werker

DOI: 10.1016/s0163-6383(96)90816-4

04 / 1996

Cognitive influences on cross-language speech perception in infancy

Infant Behavior and Development

Chris E. Lalonde and Janet F. Werker

DOI: 10.1016/0163-6383(95)90035-7

10 / 1995

Listening to Speech in the 1st Year of Life: Experiential Influences on Phoneme Perception

Current Directions in Psychological Science

Janet F. Werker and Rene N. Desjardins

DOI: 10.1111/1467-8721.ep10772323

06 / 1995

A cross-language investigation of infant preference for infant-directed communication

Infant Behavior and Development

Janet F. Werker and Judith E. Pegg and Peter J. McLeod

DOI: 10.1016/0163-6383(94)90012-4

07 / 1994

Developmental changes in perception of nonnative vowel contrasts.

Polka L and Werker JF

DOI: 10.1037//0096-1523.20.2.421 PubMed: 8189202

04 / 1994

Cross-Language Speech Perception: Development Does Not Involve Loss

Developmental changes in cross-language vowel perception

The Journal of the Acoustical Society of America

Linda Polka and Janet F. Werker

DOI: 10.1121/1.405875

04 / 1993

Developmental Changes in Speech Perception: New Challenges and New Directions

The Ontogeny and Developmental Significance of Language-Specific Phonetic Perception

Developmental Neurocognition: Speech and Face Processing in the First Year of Life

Janet F. Werker and Linda Polka

DOI: 10.1007/978-94-015-8234-6_23

The Contribution of the Relation between Vocal Production and Perception to a Developing Phonological System

Preference for infant-directed over adult-directed speech: Evidence from 7-week-old infants

Infant Behavior and Development

Judith E. Pegg and Janet F. Werker and Peter J. McLeod

DOI: 10.1016/0163-6383(92)80003-d

07 / 1992

La langue et les lvres: Cross-language influences on bimodal speech perception.

Canadian Journal of Psychology/Revue canadienne de psychologie

Janet F. Werker and Paul E. Frost and Harry McGuirk

DOI: 10.1037/h0084331

The organization and reorganization of human speech perception.

Werker JF and Tees RC

DOI: 10.1146/annurev.ne.15.030192.002113 PubMed: 1575448

Infant Speech Perception and Phonological Acquisition

Developmental Differences in the Accuracy of Reporting the Causal Determinants of Behaviour

International Journal of Behavioral Development

Tracy Schrans and Janet F. Werker and Richard E. Brown

DOI: 10.1177/016502549001300207

06 / 1990

Infant preference for both male and female infant-directed talk: a developmental study of attentional and affective responsiveness.

Werker JF and McLeod PJ

PubMed: 2486497

06 / 1989

Toward understanding the problem in severely disabled readers Part II: Consonant errors

Applied Psycholinguistics

Janet F. Werker and Susan E. Bryson and Karen Wassenberg

DOI: 10.1017/s0142716400008390

03 / 1989

Toward understanding the problem in severely disabled readers Part 1: Vowel errors

Applied Psycholinguistics

Susan E. Bryson and Janet F. Werker

DOI: 10.1017/s0142716400008389

03 / 1989

Becoming a native listener: A developmental perspective on human speech perception

American Scientist

Werker, J. F. (1989). Becoming a native listener: A developmental perspective on human speech perception. American Scientist, 77(1), 54-59.

Cross-language speech perception: Initial capabilities and developmental change.

Developmental Psychology

Janet F. Werker and Chris E. Lalonde

DOI: 10.1037//0012-1649.24.5.672

Speech perception in severely disabled and average reading children.

Werker JF and Tees RC

PubMed: 3502888

03 / 1987

The effect of multilingualism on phonetic perceptual flexibility

Applied Psycholinguistics

Janet F. Werker

DOI: 10.1017/s0142716400007360

06 / 1986

The development of cross-language speech perception

The Journal of the Acoustical Society of America

Janet F. Werker

DOI: 10.1121/1.2023270

05 / 1986

Phonetic discrimination and perceptual reorganization in human infants

Infant Behavior and Development

Janet F. Werker

DOI: 10.1016/s0163-6383(86)80408-8

04 / 1986

Cross-language evidence for three factors in speech perception

Perception & Psychophysics

Janet F. Werker and John S. Logan

DOI: 10.3758/bf03207136

01 / 1985

Perceptual flexibility: maintenance or recovery of the ability to discriminate non-native speech sounds.

Tees RC and Werker JF

PubMed: 6518419

12 / 1984

Phonemic and phonetic factors in adult cross-language speech perception

The Journal of the Acoustical Society of America

Janet F. Werker and Richard C. Tees

DOI: 10.1121/1.390988

06 / 1984

Phonological acquisition and change. John L. Locke, New York: Academic Press, 1983. Pp. 263.

Applied Psycholinguistics

Janet F. Werker

DOI: 10.1017/s0142716400005270

Developmental changes across childhood in the perception of non-native speech sounds.

Canadian Journal of Psychology/Revue canadienne de psychologie

Janet F. Werker and Richard C. Tees

DOI: 10.1037/h0080725

Developmental Aspects of Cross-Language Speech Perception

Child Development

Janet F. Werker and John H. V. Gilbert and Keith Humphrey and Richard C. Tees

DOI: 10.1111/j.1467-8624.1981.tb03051.x

03 / 1981

Auditory-visual integration of temporal relations in infants.

Canadian Journal of Psychology/Revue canadienne de psychologie

Keith Humphrey and Richard C. Tees and Janet F. Werker

DOI: 10.1037/h0081731

Bilingualism in Infancy and Early Childhood

Many children in the world grow up learning two or more languages simultaneously from birth. We are currently undertaking a number of studies comparing language development in bilingual and monolingual infants and children. These include a) studies of the brain bases of how bilingual newborn infants separate their two languages from birth; b) studies of speech sound discrimination in bilingual in comparison to monolingual infants; c) studies of word learning in bilingual infants (do they assume that each object can have only one label as monolingual infants do? Or are they more willing to accept two labels for each object?); and, d) studies investigating how knowledge of a heritage language influences spoken language and literacy, at both brain and behavioral levels.

Critical periods

There is continuing debate as to whether speech perception is characterized by critical periods, i.e. windows in development when the perceptual system is most open to experience-based tuning. Recent work suggests that Gamma-aminobutyric acid (GABA: an inhibitory neurotransmitter) circuit maturation triggers the critical period for visual cortical plasticity, as exemplified by premature onset in mice treated with benzodiazepines. Given that GABA triggers visual cortical plasticity in mice, I am now collaborating with T. Hansch at Harvard University, and T. Oberlander in the Centre for Community Child Health to study the relationship between speech perception in human infants exposed to benzodiazepines and other drugs during prenatal and early pre- and perinatal development, asking whether exposure to these substances changes the timing of perceptual plasticity for speech sounds, and whether differential timing of the onset of plasticity has the cascading effects on subsequent language development. We are now completing writing up the follow-up study with older children.

Studying the link between vocabulary development in infancy and later literacy
Previous work has shown a link between vocabulary development in infancy and later language and literacy. We are now exploring whether this link holds in infants growing up in bilingual homes since bilingual children typically have smaller vocabularies in each of their languages (but as large or larger across both) than monolingual children.

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