Kinesiology 1080A/B Lecture 7: Lesson#7 - Jan 20

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

Document Summary

Homunculus: according to the homuncular representation, the m1 is the final common pathway to action (all motor information leaves the cortex via m1, classic interpretation of organization in m1 (everything has specific areas, nothing overlaps, andrew schwartz: Implanted electrodes into the m1 of an awake monkey. Measured when the neurons fire in response to a particular muscle moving (in the case the hand) Different colours represent different neurons that control specific fingers (yellow thumb neuron; pink pinky finger; etc. ) Found: instead of strict homuncular representation, they found that neurons were intermingling with one another this contradicts penfield"s original proposal. This provides a degree of flexibility and recovery: georgeopolis: Measured activation of one neuron in a monkeys m1. Raster plots: give a graphic way of depicting the activation of a single neuron over time (i. e. , 6 rows = 6 trials) more tick marks, more that neuron is activated for that particular task.