BIOLOGICAL BASES OF BEHAVIOR
THE CEREBRAL CORTEX
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the larger the area on the somatosensory cortex, the more sensitive the perception
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the smaller the area on the somatosensory cortex, the more sensitive the perception
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the larger area on the parietal cortex, the more sensitive the hearing
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the smaller the area on the partietal cortex, the more sensitive the hearing
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Detailed explanation-1: -For instance, the hands and the lips are very sensitive to sensations and so there is a large area of the somatosensory cortex which is dedicated to sensation in these areas. Whereas body parts such as the back are less sensitive to sensations and would therefore have a much smaller area in represented in the cortex.
Detailed explanation-2: -The somatic sensory cortex in humans, which is located in the parietal lobe, comprises four distinct regions, or fields, known as Brodmann’s areas 3a, 3b, 1, and 2. Although area 3b is generally known as the primary somatic sensory cortex (also called SI), all four areas are involved in processing tactile information.
Detailed explanation-3: -The largest lobes of the cerebral cortex are the frontal lobes. These are located at the front of the brain behind the forehead. The frontal lobe’s functions primarily involve ‘higher’ cognitive functions such as decision-making, conscious thought, problem-solving, and attention.
Detailed explanation-4: -Most of your cerebral cortex is considered to be the neocortex. “Neo” means new. Your neocortex is so named because its appearance is thought to be relatively new in vertebrate evolution. In humans, 90% of the cerebral cortex is the neocortex.