Kinesiology 1080A/B Lecture Notes - Lecture 1: Split-Brain, Optic Chiasm, Motor Neuron

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

Document Summary

M1 damage impairs voluntary behaviour; however, with practice, the activity can be reacquired via cortical reorganization. This can be used to explain why elite athletes are so elite. The two hemispheres of the brain are linked by the corpus callosum, essentially making two brains into one. The left and right cerebral hemispheres have specialized functions. People that do(cid:374)"t ha(cid:448)e a (cid:272)o(cid:396)pus (cid:272)allosu(cid:373) ha(cid:448)e t(cid:449)o (cid:271)(cid:396)ai(cid:374)s that (cid:272)a(cid:374) fu(cid:374)(cid:272)tio(cid:374) i(cid:374)depe(cid:374)de(cid:374)tl(cid:455). Damage results in loss of ability to coordinate movements. Right hemisphere: haptic information processing touch information, visual spatial attention and motor function, was considered to be less important for a long time. Asked to learn a task that is restricted to one half of the brain. If e(cid:455)e pat(cid:272)h (cid:449)as s(cid:449)it(cid:272)hed, (cid:373)o(cid:374)ke(cid:455) (cid:272)ould(cid:374)"t pe(cid:396)fo(cid:396)(cid:373) the task. Proves that two hemispheres can learn things independently. Can say some automated speech like numbers and swears. Can be helped by melodic intonation therapy as singing is lateralized in the right hemisphere.