AP PSYCHOLOGY

Detailed explanation-1: -The somatosensory cortex in the front part of the parietal lobe resides in two areas: the postcentral gyrus and the posterior paracentral lobule.

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 somatosensory association cortex is located in the superior parietal lobe (a.k.a. posterior parietal cortex), which is posterior to SI. The highest degree of convergence of somatosensory information occurs in the posterior parietal cortex.

Detailed explanation-4: -The primary somatosensory cortex (SI) is located in the anterior part of the parietal lobe, where it constitutes the postcentral gyrus. It consists of Brodmann areas 1, 2, 3a, and 3b (Figure 2(a)). Areas 3b and 1 receive cutaneous tactile input, areas 3a and 2 proprioceptive input.

Detailed explanation-5: -The parietal lobe rests near the top and center of the cerebral cortex, just behind the frontal lobe and above the occipital and temporal lobes. The parieto-occipito sulcus separates it from the frontal lobe, while the lateral sulcus-sometimes referred to as the Sylvian fissure-separates it from the temporal lobe.