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what is the cerebral cortex |
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in what lobe is Broca's area |
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in what lobe is the primary sensory cortex |
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in what lobe is Wernicke's |
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the cortex that covers most of the cerebral hemispheres |
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how many cellular layers/lamina in the neocortex |
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how is each layer of the neocortex distinct |
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Definition
each layer has distinct populations of cells with different shapes, sizes, inputs, and outputs |
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in what neocortical layer are there many stellate neurons |
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what neocortical layers are concentrated with pyramidal neurons |
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does the cortex always have 6 layers |
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how many layers in archicortex |
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what does the paleocortex cover |
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ventral surface of the cerebral hemispheres |
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how many layers in the paleocortex |
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what is the functional significance of having different cortical layers |
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Definition
unknown; probably reflects more complex information processing |
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describe neocortical circuitry |
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Definition
each cortical layer has specific output targets and each layer is a specific input target. They project to certain places, and they receive projections from certain places |
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what is another term for Brodmann's areas |
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how are brodmann's areas divided |
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Definition
the areas are histologically and functionally distinct. The inputs, outputs, and layers in one brodmann's area are the same |
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in what area is the primary visual cortex |
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what brodmann's areas is broca's |
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what is the brodmann's area for wernicke's |
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what is the brodmann's area for primary motor complex |
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what is the brodmann's area for premotor cortex |
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what are the brodmann's areas for primary sensory |
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define the association cortices |
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Definition
areas of the cortex not involved with encoding sensory information commanding movements. Not motor/sensory/hearing/vision |
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where are the association cortices |
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cerebral sufrface of the brain |
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what are association cortices responsible for |
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Definition
cognitive human processes |
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the process by which we come to learn our world: our ability to attend to complex stimuli, identify the significant features of the stimuli, and plan responses to the stimuli |
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what mental processes do the association cortices support |
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Definition
the ones that make us human: fear, anger, attraction, emotions, memory |
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in what lobes are the association areas concerned with cognition |
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Definition
parietal, temporal, frontal |
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why isn't the occipital lobe concerned with cognition |
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Definition
main responsibilit = vision |
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what do the association cortices receive and integreate |
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information from a variety of sources |
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what else must association cortices doe |
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Definition
project to and influence a broad range of cortical and subcortical targets |
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are there inputs and outputs to/from the association cortices |
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is everything in the association cortices connected to everything else |
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Definition
no. each association cortex has distinct connections |
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how have neurosciences made inferences about the specific function of assication cortices |
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Definition
observations of patients with cortical lesions. Certain things happen to people when they damage certain regions of their brains |
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what do lesions of the parietal association cortex result in |
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Definition
deficits in attention to the world around us and attention and perceptoin of our own body |
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what is contralateral neglect syndrome caused by |
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what happens in contralateral neglect syndrome |
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Definition
unable to attend to or perceive objects or even ones own body in a part of space despite being able to see it visually |
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in contralateral neglect syndrombe, is the the deficit on the same side or other side of the lesion |
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what is the diagnosis for someone who only shaves one side of their facebecause they don't perceive it even though they can feel, touch, see it |
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contralateral neglect syndrome |
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if someone has a right parietal stroke that causes contraltearl neglect syndrome, can it improve |
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is contralateral neglect more common with damage to right or left parietal lobe |
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Definition
more common with damage to right parietal lobe |
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why is contralteral negelect syndrome more commonly associated with damage to the right parietal cortex |
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Definition
the rigth parietal cortex mediates attention to both the left and right halves of the body/space. The left parietal cortex medaites attetion only to the right. If you damage the left parietal cortex, the right parietal cortex can help it out a little. If you damage the right parietal cortex, there is no help. |
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what are the effects of a right parietal lesion |
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Definition
severe neglect on left side |
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what is the result of a left parietal lesion |
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Definition
meinimal neglect on right sid |
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what is the dominant hemisphere for knowing what's going on around you |
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what is the location of lesions that typically result in contralateral neglect syndrome |
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what compensates lesions in the left parietal lobe |
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which hemisphere is the dominant one to govern attention and awareness |
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what is the result of lesions in the frontal association cortex |
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Definition
deficits in planning and executing normal behavior |
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what does the frontal association cortex have a wider range of functions than other neocortical areas |
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what does damage to frontal lobe result in |
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what is frontal lobe responsible for |
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personality: planning and executing normal behaviors |
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what does damage to the basilar part of the frontal lobe result in |
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what does damage to the dorsolateral/convex portion of the frontal lobe do |
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Definition
renders patients indifferent, apathetic |
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what does damage to theorbitofrontal portion of the frontal lobe do |
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Definition
impaired judgment, loss of inhibitions, hard to get along with |
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what do lesions of the temporal association cortex result in |
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Definition
difficulty recognizing, identifying, and naming different categories of objects |
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Definition
disorders in which you have difficulty recognizing, identifying, and naming different categories of objects |
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Definition
inability to recognize and identify faces following temporal lobe damage |
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damage to which part of which temporal lobe results in prosopagnosia |
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Definition
damage to inferior right temporal lobe |
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what determines whether an agnosia is for human faces or familiar objects |
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Definition
location and size of the lesion |
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why might someone have their corpus callosum surgically cut |
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how many axons go through the corpus callosum to connect the hemispheres of the brain |
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which side of the brain is language dominant |
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in a split brain patient, if an object was placed in the right hand, could the patient say what it is without seeing it |
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Definition
yes. It is sensed by the left hemisphere, and the left hemisphere is the language dominant hemisphere so the person can sense what the object is and say what it is. |
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Term
in a split brain patient, if an object was placed in the left hand, could the patient say what it is without seeing it |
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Definition
no. the sensory information goes to the right side of the brain, but that information can't be passed to the left side of the brain to be processed as language |
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which side of the brain specializes in the emotional coloring of language |
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which side and location of the brain is important for perception of space |
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what is a hemorrhagic stroke |
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Definition
blood vessel bursts. Blood pours out into a specific region of the brain |
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what happens in an embolitic stroke |
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Definition
embolism lodges. Everything downstream becomes ischemic |
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how long can neurologic repair take |
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