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27 Cards in this Set
- Front
- Back
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Which hemisphere is larger and heavier
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Right
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What has more gray matter
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Left
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In which hemisphere is Broca's area flatter
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Right
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Slope of lateral fisssure is gentler on the
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Left
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Tempoparietal cortex looks larger on
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Right
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Occipital horns of lateral ventricles are 5x more likely to be longer on
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Right
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Interpretive or experiential responses such as déjà vu, fear, dream states, and recall of specific memories primarily occurring when stimulating the
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Right
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Left hemisphere dominance for speed
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98% right handers
70% left handers |
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Bilateral speech organization
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0% right handers
15% left or ambidexterous |
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Lateralization for vision
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Preferential efficiency in processing:
words to left hemisphere, faces to right |
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Lateralization for auditory information
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The left hemisphere appears to be specialized for language related sounds whereas the right hemisphere is specialized for music
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Asymmetry in emotion expression
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Left hemisphere may be more expressive
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Asymmetry when speaking
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Right side of the mouth may open wider and more quickly than the left side when speaking
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Percent of population that is left-handed
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10-30%
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Asymmetry in corpus callosum
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11% bigger in left-handed and ambidextrous Ss than in right-handed Ss
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Left-handed language representation
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70% right
15% left 15% mixed |
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Which gender has larger brain
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Male (not accounted for by body size)
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Females greater than males for size of
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language areas, medial paralimbic, lateral frontal, amount of gray matter, density of neurons in temporal lobe, number of gyri, thickness of cortex (especially posterior temporal, and parietal), neuropil (dendrites and axons and thus connections per neuron)
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Males greater than females for size of
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medial frontal region, cingulate region, amygdala and hypothalamus, white matter volume, right planum parietale, number of neurons, overall size of brain, more uniform gray matter concentration (female brain is “patchier”)
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Asymmetry in EEG
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Men are more asymmetrical
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Asymmetry in blood flow
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females greater than males
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logography
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Pictoral cues in language
right hemisphere advantage |
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morphology
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meaning cues in language
left hemisphere advantage |
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Asymmetry in agenesis of the corpus callosum
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Very little asymmetry
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Do males or females show more asymmetrical effects of unilateral lesions?
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Males
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Effects of VIQ and PIQ on unilateral lesions in males
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Left lesion impairs both VIQ and PIQ, but mostly VIQ.
Right lesion impairs only PIQ |
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Effects of VIQ and PIQ on unilateral lesions in females
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Left lesion impairs both VIQ and PIQ, to a similar degree.
Right lesion has little effect on either VIQ or PIQ |
