Class Notes (920,386)
CA (542,228)
UTSC (32,855)
Psychology (8,010)
PSYB65H3 (525)
Ted Petit (310)
Lecture

note 02

2 Pages
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Department
Psychology
Course Code
PSYB65H3
Professor
Ted Petit

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evolutionary pressure (become omre smart) force the human brain to expand over time, cover is
not smooth
right hemisphere and left hemisphere are connected at corpus callosum
-connect analogous brain parts of two hemisphere
3 big fissures
-longtudinal fissure separate LH and RH
-central fissure separate each hemisphere into anterior part and posterior part
-lateral (sylvian) fissure separete temporal lobe from other two parts
4 big lobes
-frontal lobe (from anterior brain to central fissure)
-parietal lobe (from central fissure to occipital lobe)
-occipital lobe (at the back of the brain)
-temporal lobe (ventral/bottom portion of the brain)
-each lobe has its primary and associational cortex for a certain sense
(eg: occipital lobe has primary and associational visual cortex which involves in visual process)
primary cortex--
-primarily receive input from outside (particular sensory information)
associational cortex--
-process the in put info from primary cortex ('make sense')
-more evoled animals have more percentage of associational cortex relative to primary cortex
primary area in each lobe has a number accord ing to the brain map built by Brodmann
-6 and 4 for frontal lobe
-3 1 2 for parietal lobe
-17 for occipital lobe (deals with visual inputs)
-41 for temporal lobe (deals with speech and auditory inputs)
frontal lobe
-precentral gyrus (6&4-primary motor strip): controls motor movement
neurons in this gyrus directly controls muscle movement (fine map of which part controls which
body muscle --> homunculus)
-associational motor cortex: involes in planning of motor movements even lifestyle (higher
fuctions rather than simple body movement)
-inhibit inappropriate behaviours
parietal lobe
-there is NOT a clear boundary between parietal and occipital lobe
-postcentral gyrus (3 1 2-primary sensory strip): somatosensory (none-specialized senses) input
-associational cortex (all other remaining parts in this lobe): feelings of one's own body
occipital lobe
-primary visual cortex(17-primary visual receptive area): receives information from eyes
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Description
evolutionary pressure (become omre smart) force the human brain to expand over time, cover is not smooth right hemisphere and left hemisphere are connected at corpus callosum -connect analogous brain parts of two hemisphere 3 big fissures -longtudinal fissure separate LH and RH -central fissure separate each hemisphere into anterior part and posterior part -lateral (sylvian) fissure separete temporal lobe from other two parts 4 big lobes -frontal lobe (from anterior brain to central fissure) -parietal lobe (from central fissure to occipital lobe) -occipital lobe (at the back of the brain) -temporal lobe (ventralbottom portion of the brain) -each lobe has its primary and associational cortex for a certain sense (eg: occipital lobe has primary and associational visual cortex which involves in visual process) primary cortex-- -primarily receive input from outside (particular sensory information) associational cortex-- -process the input info from primary cortex (make sense) -more evoled animals have more percentage of associational cortex relative to
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