François Richer

1 | Research Overview

Francois Richer studies the cognitive deficits associated with frontal and striatal disorders, especially attention and voluntary programming problems. His present work includes the analysis and modeling of cognitive deficits in Huntington's disease, frontal brain lesions and Tourette syndrome, as well as functional brain imaging of cognitive processes.

2 | Recent Publications

Marti, S., Thibeault, M., Paradis, V., Richer, F. (2006) New object onsets reduce conscious access to unattended targets in the attentional blink. Vision Research, 46, 1646-1654.

Lemay , M., Fimbel, E., Beuter, A. Chouinard, S., Richer F. (2005) Sensorimotor mapping affects movement correction deficits in early Huntington’s disease. Experimental Brain Research, 165, 454-460.

Richer F. & Chouinard S. (2003) Cognitive control in fronto-striatal disorders. In MA Bedard, S Fahn, Y Agid et al (Eds) Mental and behavioral dysfunction in movement disorders. NY: Humana Press.

Marcantoni W, Lepage M, Beaudoin G, Bourgouin P, Richer F (2003) Functional anatomy of the attentional blink: an fMRI study. Brain & Cognition, 51, 90-93.

Richer, F., Boulet, C., Maheu, G. & Achim, A. (2002) Frontal and striatal brain lesions increase susceptibility to masking in perceptual decisions. Brain & Cognition, 50, 90-94.

Beuter, A., Titcombe, M.S., Guehl, D. and Richer, F. (2001) Effect of deep brain stimulation on amplitude and frequency characteristics of rest tremor in Parkinson's disease. Thalamus & Related Systems. 1, 203-211.

Marcantoni, W.S., Lévesque, M., Achim, A., Beaudoin, G., Bourgouin, P. & Richer, F. (2001). Cortical activity associated with attentional interference tasks. Brain and Cognition, 47, 103-106.

Bédard, M.A., Schérer, H., Stip. E, Cohen, H., Rodriguez JP., & Richer F. (2000) Procedural learning in schizophrenia: further consideration on the deleterious effect of neuroleptics. Brain & Cognition, 43, 31-38.

Lepage, M. & Richer, F. (2000) A concurrent programming problem affects response planning after frontal brain lesions. Behavioral Neuroscience 114, 1034-1040.

Richer, F., Chouinard, MJ., & Rouleau, I. (1999) Frontal lesions impair the attentional control of movements during motor learning. Neuropsychologia, 37, 1427-1435.

Richer, F. & Boulet, C. (1999) Frontal lesions and fluctuations in response preparation. Brain & Cognition, 40, 234-238.

Bédard, S. & Richer, F. (1999) Is there really a task-shifting deficit after frontal lesions. Brain & Cognition, 40, 41-44.

Lepage, M., Beaudoin, G., Boulet, C., O'Brien, I., Bourgouin, P., & Richer, F. (1999) Frontal cortex and the programming of repetitive tapping movements in man: Lesion effects and functional neuroimaging. Cognitive Brain Research, 8, 17-25.

3 | Manuscripts

Cognitive Control in Fronto-striatal Disorders

New Perspectives on Dystonia

Les lobes frontaux et le contrôle cognitif

Le Syndrome de Gilles de la Tourette

Disruptive and competitive effects of backward masks on cortical activity

Postural control anomalies in children with TS

Cortical activity supression by backward visual masks: Competition vs Capture