Kinesiology 1080A/B Lecture Notes - Lecture 1: Primary Motor Cortex, Apraxia, Alpha Motor Neuron

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Primary motor cortex is a plasic structure can repair itself ater damage (especially in children, in adults recovery is much slower) Primary motor cortex can code and control complex postures. Individual neurons within the motor cortex have speciic movement types. Sma coordinates movements between two limbs, however is allows for independent movements of the let and right limbs. A lesion in the sma of an animal can cause the loss of coordinaion between limbs. Raster graphs for visual sensory informaion (pma and m1 acivaion), for internally generated movements (sma and m1 acivaion) primary motor cortex is always acive when you move (regardless of visual sensory or internally generated movements) Right responsible for visual spacial abiliies, direcing atenion, hapics (touch exploraion) -> three funcions strongly lateralized to right hemisphere. Let speech and language, praxis is strongly lateralized to the let cerebral hemisphere. Apraxia: a disorder of learned, skilled purposeful movement not related muscle paralysis or comprehension deicits.