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Brain - El Camino College
Brain - El Camino College

... The area just behind central sulcus is the general Sensory Area to receive sensory input. Primary vision area lies in visual cortex in occipital lobe. Primary Gustatory Area lies on lateral side of frontal lobes and receives information about taste. Primary Auditory Area lies in temporal lobes and r ...
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The Brain - Wando High School

...  “Sensory Strip” ...
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Chapter 6 Notes

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... • Some are unlikely to reoccur after removal (benign) but others are likely to regrow again (malignant), they are equally dangerous depending on their location. • There are several types distinguished on the basis of where they originate: • a) Glioma's: These arise from glial cells and infiltrate br ...
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Lecture 4 - On the Evolution of Human Language

... ANATOMICAL BASES OF SPOKEN LANGUAGE ...
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receptive
speech;

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area
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involved
in
receptive
speech,
is
in
the
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temporal
lobe
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occipital
lobe
(sometimes
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the
striate
cortex)
is
responsible
for
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...  Nucleus Accumbens – is part of the reward circuit.  Cerebrum (forebrain, cortex)  Convolution  Valleys or furrows are called fissures or sulci.  Ridges (mountains) are called gyri.  The amount of convolution increases with cognitive complexity of the species. ...
< 1 ... 59 60 61 62 63 64 65 66 67 ... 83 >

Lateralization of brain function



The longitudinal fissure separates the human brain into two distinct cerebral hemispheres, connected by the corpus callosum. The hemispheres exhibit strong, but not complete, bilateral symmetry in both structure and function. For example, structurally, the lateral sulcus generally is longer in the left hemisphere than in the right hemisphere, and functionally, Broca's area and Wernicke's area are located in the left cerebral hemisphere for about 95% of right-handers, but about 70% of left-handers.Broad generalizations are often made in ""pop"" psychology about one side or the other having characteristic labels, such as ""logical"" for the left side or ""creative"" for the right. These labels are not supported by studies on lateralization, as lateralization does not add specialized usage from either hemisphere. Both hemispheres contribute to both kinds of processes, and experimental evidence provides little support for correlating the structural differences between the sides with such broadly defined functional differences.The extent of any modularity, or specialization of brain function by area, remains under investigation. If a specific region of the brain, or even an entire hemisphere, is injured or destroyed, its functions can sometimes be assumed by a neighboring region in the same hemisphere or the corresponding region in the other hemisphere, depending upon the area damaged and the patient's age. When injury interferes with pathways from one area to another, alternative (indirect) connections may develop to communicate information with detached areas, despite the inefficiencies.Brain function lateralization is evident in the phenomena of right- or left-handedness and of right or left ear preference, but a person's preferred hand is not a clear indication of the location of brain function. Although 95% of right-handed people have left-hemisphere dominance for language, 18.8% of left-handed people have right-hemisphere dominance for language function. Additionally, 19.8% of the left-handed have bilateral language functions. Even within various language functions (e.g., semantics, syntax, prosody), degree (and even hemisphere) of dominance may differ.Additionally, although some functions are lateralized, these are only a tendency. The trend across many individuals may also vary significantly as to how any specific function is implemented. The areas of exploration of this causal or effectual difference of a particular brain function include its gross anatomy, dendritic structure, and neurotransmitter distribution. The structural and chemical variance of a particular brain function, between the two hemispheres of one brain or between the same hemisphere of two different brains, is still being studied. Short of having undergone a hemispherectomy (removal of a cerebral hemisphere), no one is a ""left-brain only"" or ""right-brain only"" person.
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