PSY 250 Lecture Notes - Lecture 10: Apraxia, Premotor Cortex, Mirror Neuron
22 Mar 2016
School
Department
Course
Professor
Document Summary
Corical motor areas: primary motor cortex (m1) Plays a major role in iniiaing body movements. Some neurons code for the direcion in which a limb is meant to travel. Fire in relaion to the target locaion- end point of movement. Causes diiculty in moving body parts but not paralysis in the long term: secondary motor area. Electrical simulaion elicits complex movements of body parts. Neurons ire prior to and during voluntary movements. Mirror neurons: acive when performing an acion or watching another perform the same acion. Grasping or watching another grasp a paricular object but not the other objects. Sma neurons oten ire during sequences of movements: sensorimotor associaion areas. Apraxia: the inability to plan and properly execute a learned, skilled movement following brain damage; not a simple motor deicit; what"s asked; oten caused unilateral damage to the let parietal.
