01:830:313 Lecture Notes - Lecture 2: Hemispatial Neglect, Nostril, Olfactory System
24 Jul 2016
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Document Summary
Largest part of brain consists of 2 symmetrical parts: cerebral hemispheres, which receive sensory information from opposite sides of the body and movements of opposite sides of body. People speaking with a person who has split brain are conversing with one hemisphere= Left hand seems to have mind of its own. Happens because right hemisphere, which controls the left hand, cannot read and therefore finds holding the book boring. Olfactory system= exception- person sniffs flower through left nostril= brain brain receives info about odor. Right nostril of a patient with split brain is closed, leaving only left nostril open, patient will be able to tell us what the odors are because the info is received by side of brain that controls speech. If odor enters only right nostril, patient will say that he/she smells nothing. If asked to use left hand- controlled by hemisphere that detects the smell- patient will select the object that corresponds to the odor.
