Tim Welsh

Tim Welsh

  • Professor
55 Harbord Street, Toronto, ON M5S 2W6

About Tim

Academic Training

Ph.D. Human Biodynamics - McMaster University, 2002

M.Sc. Human Biodynamics - McMaster University, 1999

B.P.H.E. Physical and Health Education – University of Toronto, 1997

Graduate Student Recruitment Status
Accepting PhD and MSc students
Research Interests

Planning and Control of Goal-directed Limb and Eye Movements

Selective Attention

Movement in Social Contexts

Perception of Nonhuman Animal Bodies and Actions

Transcranial Magnetic Stimulation

Cognitive and Motor Disorders such as Down Syndrome and Autism 

Selected Publications

1. Perception-action coupling in individual and social action contexts

Constable, M.D., Pratt, J., Gozli, D.G., & Welsh, T.N. (2015). Do you see what I see? Co-actor posture modulates visual processing in joint tasksVisual Cognition, 23, 699-719.

Welsh, T.N., McDougall, L.M., & Paulson, S.D. (2014). The personification of animals: Coding of human and nonhuman body parts based on posture and function. Cognition, 132, 398–415.

Böckler, A., van der Wel, R.P., & Welsh, T.N. (2014). Catching eyes: Effects of social and non-social cues on attention capturePsychological Science, 25, 720-727.

White, N.C., Reid, C., & Welsh, T.N. (2014). Responses of the human motor system to observing actions across species: A transcranial magnetic stimulation studyBrain and Cognition, 92, 11-18.

Wong, L., Manson, G., Tremblay, L., & Welsh. T.N. (2013). On the relationship between action execution, perception, and imaginationBehavioral Brain Research, 257, 242-252.

2. Selective Attention and Decision Making

Neyedli, H.F., & Welsh, T.N. (2015). The prioritization of probability over value in action selection. Quarterly Journal of Experimental Psychology, 68, 261-283.

Neyedli, H.F., & Welsh, T.N. (2014). People are better at maximizing expected gain in a manual aiming task with rapidly changing probabilities than with rapidly changing payoffsJournal of Neurophysiology111, 1016-1026.

Welsh T.N., Neyedli, H.F., & Tremblay, L. (2013). Refining the time course of facilitation and inhibition in attention and actionNeuroscience Letters, 554, 6-10.

3. Action and cognition in real and virtual environments

Jovanov, K., Clifton, P., Mazalek, A., Nitsche, M., & Welsh, T.N. (2015). The limb-specific embodiment of a tool following experience. Experimental Brain Research. 233, 2685-2694.

Mazalek, A., Nitsche, M., Chandrasekharan, S., Welsh, T., Clifton, P., Quitmeyer, A., Peer, F., & Kirschner, F. (2013). Recognizing your self in virtual avatars. International Journal of Arts and Technology, 6, 83-105.

Mazalek, A., Welsh, T.N., Nitsche, M., Reid, C., Clifton, P., Leighton, F., & Tan, K. (2013). Reach across the boundary: evidence of physical tool appropriation following virtual practice. Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction (TEI '13). ACM, New York, NY, USA, 155-158. 

4. Motor control in average and special populations

Kiernan, D., Manson, G., Heath, M.D., Tremblay, L., & Welsh, T.N. (2016). Corrections in saccade endpoints scale to the amplitude of target displacements in a double-step paradigmNeuroscience Letters. 611, 46-50.

McDougall, L.M, Kiernan, D., Kiss, Z.H.T., Suchowersky, O., & Welsh, T.N. (2015). Abnormal surround inhibition does not affect asymptomatic limbs in people with cervical dystoniaNeuroscience Letters, 604, 7-11.

Manson, G.A., SayenkoD.G., Masani, K., WongL., Goodman, R., PopovicM.R, Tremblay, L., & Welsh, T.N. (2014).Action possibility judgments of people with varying motor abilities due to spinal cord injuryPLoS-ONE9, e110250.

Welsh, T.N., Hoang, S., Chandrasekharan, S., Paulson, S., Lynnes, A., & Ayres, F. (2009). Goal-directed Saccades of Young Adults with and without Down Syndrome. Down Syndrome Quarterly, 11, 10-15.

Welsh, T.N., Ray, M., Weeks, D.J., Dewey, D., & Elliott, D. (2009). Does Joe influence Fred’s action? Not if Fred has autism spectrum disorderBrain Research, 1248, 141-148.

Currently Funded Projects

Natural Sciences and Engineering Research Council of Canada (NSERC), Discovery Grant - Motor Representations in Individual and Joint Action Contexts

Social Sciences and Humanities Research Council, Insight Grant, Principal Investigator (Dr. Ali Mazalek) - Supporting spatial ability with tangible and embodied interactions 

Professional Memberships

Association for Psychological Science (APS)

Canadian Society for Psychomotor Learning and Sport Psychology (SCAPPS)

Down Syndrome Research Foundation

Psychonomic Society