Louis A. Schmidt profile picture

Louis A. Schmidt

Ph.D. (Maryland)

Professor & Science Research Chair   
in Early Determinants of Mental Health

Director, Child Emotion Laboratory

Fellow, Association for Psychological Science

Department of Psychology, Neuroscience & Behaviour
McMaster University
Hamilton, Ontario, L8S 4K1, Canada


905-525-9140  |  ext. 23028 (office)  |  ext. 24798 (lab)


Research Interests & Foci

- personality and socioemotional development
- temperament and affect regulation
- developmental and individual differences
- typical and atypical development 
- developmental psychophysiology and psychopathology
- psychometrics, measurement and contextual issues

Selected Recent Representative Publications

Note: Names of students and research trainees are underlined.

Brook, C.A., & Schmidt, L.A. (In press). Psychometric perspectives on shyness across the lifespan: Measurement invariance and mean level differences in ages 4 to 86 years. Applied Developmental Science.

Hassan, R., Poole, K.L., Lahat, A., Willoughby, T., & Schmidt, L.A. (In press). Approach-avoidance and shyness: A developmental investigation. Developmental Psychology

Hassan, R., Willoughby, T. & Schmidt, L.A. (In press). Shyness and prosocial tendencies during adolescence: Prospective influence of two types of self-regulation. Emotion

Hassan, R., Willoughby, T. & Schmidt, L.A. (2021). Development of shyness across adolescence: Reactivity, regulation, or both? Developmental Psychology, 57, 421-431. 

Hassan, R., Poole, K.L., & Schmidt, L.A. (2020). Revisiting the double-edged sword of self-regulation: Linking shyness, attentional shifting, and social behavior in preschoolers. Journal of Experimental Child Psychology, 196, 1-15. 

Khalesi, Z., Brook, C.A., Jetha, M.K., McNeely, H., Goldberg, J.O., & Schmidt, L.A. (In press). Revisiting shyness and sociability in schizophrenia: A psychometric examination of measurement invariance and mean level differences. Journal of Personality Assessment.

MacGowan, T.L., & Schmidt, L.A. (In press). Getting to the heart of childhood empathy: Relations with shyness and respiratory sinus arrhythmia. Developmental Psychobiology

MacGowan, T.L., & Schmidt, L.A. (In press). Helping as prosocial practice: Longitudinal relations among children’s shyness, helping behavior, and empathic response. Journal of Experimental Child Psychology.

MacGowan, T.L., & Schmidt, L.A. (2021). Preschoolers’ social cognitive development in the age of screen time ubiquity. Cyberpsychology, Behavior, and Social Networking, 24, 141-144.

Poole, K.L., & Schmidt, L.A. (In press). While a shy child waits: Autonomic and affective responses during the anticipation and delivery of a speech. Emotion.

Poole, K.L., Hassan, R., & Schmidt, L.A. (In press). Temperamental shyness, frontal EEG theta/beta ratio, and social anxiety in children. Child Development.

Poole, K.L., & Schmidt, L.A. (2020). Positive shyness in the brain: An examination of frontal EEG alpha asymmetry and delta-beta correlation in children. Child Development, 91, e1030-1045. 

Poole, K.L., Saigal, S., Van Lieshout, R.J., & Schmidt, L.A. (2020). Developmental programming of shyness: A longitudinal, prospective study across four decades. Development and Psychopathology, 32, 455-464.

Poole, K.L., & Schmidt, L.A. (2019). Smiling through the shyness: The adaptive function of positive affect in shy children. Emotion, 19, 160-170.

Tang, A., Lahat, A., Crowley, M.J., Wu, J., & Schmidt, L.A. (2019). Neurodevelopmental differences to social exclusion: An event-related neural oscillation study of children, adolescents, and adults. Emotion, 19, 520-532.

© Copyright 1997 - 2021 Louis A. Schmidt, Ph.D. (Maryland). All Rights Reserved.
1280 Main Street West  |  Hamilton, Ontario, L8S 4K1  |  905-525-9140  x23028