EDKP 447 Lecture 5: EDKP 447-5

• School: McGill University
• Department: Kinesiology and Physical Ed
• Course: EDKP 447
• Professor: Dr.Paquette

Document Summary

*stretch reflex & golgi tendon reflex = opposite effect for different sensors. Reflexes can be either enhanced / reduced . Ex: patella tap- stretch reflex= if contracting quad muscles = reflex suppressed by voluntary control. *depend on level of excitement of alpha motor neurons. *1-stimulation identification & 2-response selection = mainly association cortices. *3-response programming & 1-motor programs = mainly somatosensory motor. *compare to verify for error & apply correction. Thermostat analogy : control center [executive thermometer] measures & de(cid:272)ides te(cid:373)p (cid:1006)) air co(cid:374)ditio(cid:374)i(cid:374)g = adjust te(cid:373)p (cid:1007)) new te(cid:373)p feed(cid:271)a(cid:272)k & co(cid:373)pared (cid:1008)) loop u(cid:374)til right te(cid:373)p . Visual feedback can go to effector at motor programs. Ex: patient ataxia = show visual feedback sent to occipital region & interpreted for 2 streams. *dorsal unconscious stream = more directly to program movement. Sum of all sensory feedback from interoceptive & extreroceptive input. *include ventral stream but not dorsal stream of unconscious visual input.