PSYC 3530 Chapter Notes -Basal Ganglia, Postcentral Gyrus, Decortication
11 Nov 2013
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Document Summary
A hierarchy of function from spinal cord to cortex. Dysphasia-- impairment of speech caused by damage to the central nervous system. Subcortical structures are capable of mediating complex behaviors. The brain"s considerable capacity to change its structure in response to experience, drugs, hormones, or injury is due to its plasticity, as is its ability to compensate for loss of function caused by damage. This stiffness is due to excessive muscle tone, particularly in the antigravity muscles that hold the body up to maintain posture and are the body"s strongest: the neural centers that produce sleep are located in the hindbrain. The diencephalon and affect and motivation: a diencephalic animal, although lacking the basal ganglia and cerebral hemispheres, has an intact olfactory system, enabling it to smell odors at a distance (see figure. The hypothalamus and pituitary also are intact, and their control over hormonal systems and homeostasis no doubt integrates the body"s physiology with the brain"s activity.
