human AL - Specializations of Human Cerebral Cortex lower...

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Specializations of Human Cerebral Cortex cerebral cortex lower vertebrates are lacking ____________ cerebral cortex is the largest part of the human brain. In sensory systems we have covered primary somatosensory, auditory and visual cortex i h h t t i t i l i Higher sensory areas such as extrastriate visual areas in the “what” pathway and the “where” pathway. There is also motor cortex, which controls voluntary movements, and pre-motor cortex which is involved in initiating movements.
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Parietal Parietal “Association” motion Visual cortex Auditory Frontal “Association” Frontal Lobe Language/ spatial ccipital Occipital Even including all of the higher sensory areas, there are still large eas of cortex which we have not yet talked about These areas are Temporal Lobe areas of cortex which we have not yet talked about. These areas are called “association cortex”. Association cortex is almost non-existent in lower mammals like rodents.
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3 subdivisions of human association cortex. 1) Prefrontal cortex: involved in ______ complex motor actions ) Limbic cortex: involved in planning emory and emotions 2) Limbic cortex: involved in _____________________ 3) Parietal-temporal-occipital cortex: involved in ___________ of sensory functions and _____________. memory and emotions integration language All three association areas are interconnected. Since these association areas are unique to humans they have been quite difficult to study. ost of what we know about association cortex comes from studying patients with brain lesions Brain Most of what we know about association cortex comes from studying patients with brain lesions. Brain lesions can be caused by trauma, cardiovascular disease, tumors, psychiatric disorders or by brain surgery to correct behavioral or neurological disorders. Patients with lesions in the three different association areas have very different symptoms.
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Association areas are relatively unique to humans Therefore difficult to study neurophysiology Study through brain lesions used by trauma cardiovascular disease tumors psychiatric disorders or ti t ith l i i th 3 diff t i ti h diff t t caused by trauma, cardiovascular disease, tumors, psychiatric disorders or by brain surgery to correct behavioral or neurological disorders Patients with lesions in the 3 different association areas have very different symptoms.
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Frontal and Prefrontal Cortex prefrontal cortex lesions: cognitive planning _________ deficits difficulty _________ movements refrontal cortex: reduced activity during sleep or coma prefrontal cortex: reduced activity during sleep or coma prefrontal cortex: abnormal in hizophrenia hineus Gage Alzheimer’s disease schizophrenia Phineus Gage rontal Lesions Frontal Lesions
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This note was uploaded on 12/06/2009 for the course NPB 100 taught by Professor Chapman during the Fall '08 term at UC Davis.

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human AL - Specializations of Human Cerebral Cortex lower...

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