LIFESCI 3K03 Lecture Notes - Lecture 8: White Matter, Sensory Neuron, Premotor Cortex
27 Feb 2018
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Document Summary
The cerebral cortex is split up into 4 lobes: Frontal lobe = responsible for movement, planning and reasoning. Parietal lobe = responsible for somatic sensations and spatial processing. Temporal lobe = responsible for hearing, smell, taste, perception, speech (left hemisphere) All sensory perception reaches its completion through the actions of the motor systems. Sensory perception common pathway motor system. Schema = internal representation: planning, execution, action. Motor systems control muscle relaxation and contraction, and convey accurately timed commands to many groups of muscles. They must take into account the distribution of body mass and must plan posture adjustments for particular movements. They must also take into account the motor plant, mechanical properties of muscles, bones and joints. Reflex responses = rapid, stereotyped, involuntary responses, which are generally controlled in a graded way by the eliciting response (e. g. withdrawing hand from hot object) frontal areas can modulate this response.
