Tuesday, March 1, 2011

Impaired inhibition of prepotent motor tendencies in Friedreich ataxia demonstrated by the Simon interference task.

Brain Cogn. 2011 Feb 25

Corben LA, Akhlaghi H, Georgiou-Karistianis N, Bradshaw JL, Egan GF, Storey E, Churchyard AJ, Delatycki MB.

Bruce Lefroy Centre for Genetic Health Research, Murdoch Childrens Research Institute, Parkville, Victoria, Australia; Experimental Neuropsychology Research Unit, School of Psychology and Psychiatry, Monash University, Clayton 3800, Victoria, Australia.

KEYWORDS: Friedreich ataxia (FRDA), impairment in motor planning, cerebral cortex and/or cerebello-cortical projections, Simon interference task.

Human Basal Ganglia and the Dynamic Control of Force during On-Line Corrections

The Journal of Neuroscience, February 2, 2011, 31(5):1600-1605; doi:10.1523/JNEUROSCI.3301-10.2011

Scott T. Grafton1 and Eugene Tunik2

1Sage Center for the Study of Mind, Department of Psychology, University of California, Santa Barbara, California 93106, and 2Department of Rehabilitation and Movement Science, University of Medicine and Dentistry of New Jersey, Newark, New Jersey 07107

Keywords: Natural movements, submovements, basal ganglia, force amplitude, change, and duration, proprioceptive error, globus pallidus, subthalamic nucleus.