Louis Schmidt

Louis A. Schmidt, Ph.D. (Maryland)

Director, Child Emotion Laboratory
Fellow, Association for Psychological Science

con_address.pngDepartment of Psychology, Neuroscience & Behaviour
McMaster University
Hamilton, Ontario, L8S 4K1, Canada

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con_tel.png905-525-9140 | ext. 23028 (office) 24798 (lab)


Research Interests & Expertise

  • temperament, affect processing and regulation
  • developmental and individual differences
  • developmental psychophysiology and psychopathology
  • brain and affective development in clinical and non-clinical populations
  • impact of adverse early life events on brain-behavior development


Selected Recent Representative Publications

*Names of students and trainees are underlined.


Temperament, Anxiety, & Psychophysiology:  Studies of Typical Development

Poole, K.L., & Schmidt, L.A. (In press).  Smiling through the shyness:  The adaptive function of positive affect in shy children.  Emotion.

Poole, K.L., Santesso, D.L.,Van Lieshout, R.J., & Schmidt, L.A. (In press). Trajectories of frontal brain activity and socioemotional development in children. Developmental Psychobiology

Poole, K.L., Van Lieshout, R.J., McHolm, A.E., Cunningham, C.E., & Schmidt, L.A. (In press).  Trajectories of social anxiety in children: Influence of child cortisol reactivity and parental social anxiety. Journal of Abnormal Child Psychology.

Schmidt. L.A., & Poole, K.L. (2018).  Children’s shyness and frontal brain maturation.  Personality and Individual Differences, 127, 44-48.

Tang, A., Van Lieshout, R.J., Lahat, A., Duku, E., Boyle, M.H., Saigal, S., & Schmidt, L.A. (2017).  Shyness trajectories across the first four decades predict mental health outcomes.  Journal of Abnormal Child Psychology, 45, 1621-1633.

Tang, A., Santesso, D.L., Segalowitz, S.J., & Schmidt, L.A. (2016). Distinguishing shyness and sociability in children:  An ERP study.  Journal of Experimental Child Psychology, 142, 291-311.

Tang, A., Santesso, D.L., Segalowitz, S.J., Schulkin, J., & Schmidt, L.A. (2016). Distinguishing shyness and sociability in adults: An event-related electrocortical-neuroendocrine study.  Biological Psychology, 119, 200-209.

Miskovic, V., Moscovitch, D.A., Santesso, D.L., McCabe, R.E., Antony, M.M., & Schmidt, L.A. (2011). Changes in EEG cross-frequency coupling during cognitive behavioral therapy for social anxiety disorder. Psychological Science, 22, 507-516.


Temperament, Anxiety, & Psychophysiology:  Studies of Atypical Development

Van Lieshout, R.J., Boyle, M.H., Favotto, L., Krzeczkowski, J.E., Savoy, C., Saigal, S., Morrison, K.M., & Schmidt, L.A. (In press). Impact of extremely low birth weight status on risk and resilience for depression and anxiety in adulthood.  Journal of Child Psychology and Psychiatry.

Van Lieshout, R.J., Ferro, M., Schmidt, L.A., Boyle, M., Morrison, K., Saigal, S., & Mathewson, K.J. (In press).  Trajectories of psychopathology in extremely low birth weight survivors from early adolescence to adulthood: A 20 year longitudinal study.  Journal of Child Psychology and Psychiatry.

Lahat, A., Tang, A., Van Lieshout, R.J., Tanaka, M., MacMillian, H., & Schmidt, L.A.  (In press).  Longitudinal associations among child maltreatment, resting frontal electroencephalogram (EEG) asymmetry, and adolescent shyness.  Child Development.

Tang, A., Miskovic, V., Lahat, A., Tanaka, M., MacMillan, H., Van Lieshout, R.J., & Schmidt, L.A. (2018). Trajectories of resting frontal brain activity and psychopathology in female adolescents exposed to childhood maltreatment.  Developmental Psychobiology, 60, 67-77.

Lahat, A., Van Lieshout, R.J., Mathewson, K.J.,MacKillop, J., Saigal, S., Morrison, K.M., Boyle, M.H., & Schmidt, L.A. (2017).  Extremely low birth weight babies grown up: Gene-environment interaction predicts internalizing problems in the 3rd and 4th decades of life.  Development and Psychopathology, 29, 837-843.

Saigal, S., Day, K.L., Van Lieshout, R.J., Schmidt, L.A., Morrison, K.M., & Boyle, M.H. (2016). Health, wealth, social integration, and sexuality of extremely low-birth-weight prematurely born adults in the fourth decade of life.  Journal of the American Medical Association, JAMA Pediatrics, 170, 678-686.

Van Lieshout, R.J., Boyle, M.H., Saigal, S., Morrison, K.M., & Schmidt, L.A. (2015). Mental health of extremely low birth weight survivors in their 30s.  Pediatrics, 135, 452-459.

Fortier, P., Van Lieshout, R.J., Waxman, J.A., Saigal, S., Boyle, M.H., & Schmidt, L.A. (2014). Are orchids left and dandelions right? Frontal brain activation asymmetry and its sensitivity to developmental context. Psychological Science, 25, 1526-1533.


Theoretical, Position, and Review Papers

Chow, C.H.T. Wan, S. Pope, E., Meng, Z., Schmidt, L.A., Buckley, N., & Van Lieshout, R.J. (In press). Audiovisual interventions for parental

preoperative anxiety: A systematic review and meta-analysis.  Health Psychology.


Schmidt, L.A. (2018).  Understanding temperamental shyness:  Reflections on heterogeneity, context, and function. In Uher, J., et al. Diversity

in action: Exchange of perspectives and reflections on taxonomies of individual differences.  Philosophical Transactions of the Royal Society-

B, Biological Sciences, 383: 20170172, 6-7.

Mathewson, K.J., Chow, C.H.T., Dobson, K.G., Pope, E.I., Schmidt, L.A., & Van Lieshout, R.J. (2017).  Mental health of extremely low birth weight survivors: A systematic review and meta-analysis.  Psychological Bulletin, 143, 347-383.

Saigal, S., Van Lieshout, R.J., & Schmidt, L.A. (2017). Why are prospective longitudinal studies needed in preterm behavioral epigenetic research?—Reply. JAMA Pediatrics, 171, 92-93.

Chen, X., & Schmidt, L.A. (2015).  Temperament and personality development. In R. Lerner (Editor-in-Chief), Handbook of Child Psychology and Developmental Science (7th Ed.), In M. Lamb & C. Garcia-Coll (Section Editors), Vol 3, Social and Emotional Development (pp.152-200).  Hoboken, NJ:  Wiley.

Schmidt, L.A., & Miskovic, V. (2013). A new perspective on temperamental shyness: Differential susceptibility to endogenous environmental influences. Social and Personality Psychology Compass, 7, 141-157.

Miskovic, V., & Schmidt, L.A. (2012). New directions in the study of individual differences in temperament: A brain-body approach to understanding fearful and fearless children. Monographs of the Society for Research in Child Development, 77(2), 28-38.

Miskovic, V., & Schmidt, L.A. (2012). Social fearfulness in the human brain. Neuroscience & Biobehavioral Reviews, 36, 459-478.