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Chapter 8

PSYC 211 Chapter 8: Physiology of Behaviour Chapter 8 Notes pdf


Department
Psychology
Course Code
PSYC 211
Professor
Yogita Chudasama
Chapter
8

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Somatotopic Organisation:
The Motor Homunculus
Central sulcus
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Stimulation of the Motor Cortex (Graziano and Aflalo 2007)
Prolonged stimulation
produces complex
movements
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Organisation of the Motor Cortex
!The primary motor cortex (M1) is the
major input of cortical sensorimotor
signals and the major output of
sensorimotor signals is to the
descending motor pathways that
initiate movement.
!The supplementary motor area
(SMA) is located on the medial
surface of the brain.
!The premotor cortex is located
primarily on the lateral surface.
!The SMA and premotor cortex receive sensory information from the parietal
and temporal lobes.
!M1 also receives information from the somatosensory cortex

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