AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

THE CEREBRAL CORTEX

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Contralateral Organisation refers to:
A
Each lobe of the brain being responsible for movement and sensation in the opposite side of the body.
B
Each hemisphere (left or right) of the brain being responsible for movement and sensation in the opposite side of the body.
C
Each section of the brain being responsible for movement and sensation in the opposite side of the body.
D
Each hemisphere (left or right) being responsible for cognitive input in the opposite side of the body.
Explanation: 

Detailed explanation-1: -The contralateral organization of the forebrain (Latin: contra‚ against; latus‚ side; lateral‚ sided) is the property that the hemispheres of the cerebrum and the thalamus represent mainly the contralateral side of the body.

Detailed explanation-2: -Contralateral control is the term that describes how each hemisphere of the brain controls the contralateral side of the body. This means that the left hemisphere controls the right side of the body, and the right hemisphere controls the left side of the body.

Detailed explanation-3: -Contralateral (from Latin contra ‘against’): on the side opposite to another structure. For example, the right arm and leg are controlled by the left, contralateral, side of the brain. Ipsilateral (from Latin ipse ‘same’): on the same side as another structure.

Detailed explanation-4: -Thus, our model suggests that the left hemisphere provides predictive control mechanisms specifying aspects such as movement direction to movements of both the contralateral and the ipsilateral arms, while the right hemisphere contributes positional control mechanisms during movements of either arm as well.

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