Somatotopic arrangement
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Somatotopy is the point-for-point correspondence of an area of the body to a specific point on the central nervous system. Typically, the area of the body corresponds to a point on the primary somatos
Precentral gyrus sensory homunculus
Somatosensory system
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The somatosensory system, or somatic sensory system, is a subset of the sensory nervous system. The main functions of the somatosensory system are the perception of external stimuli, the perception of
Somatotopic arrangement
…Areas such as the viscera do not have sensory locations on the postcentral gyrus. Macaques, a kind of monkey, already exhibit somatotopy in their somatosensory and motor systems at birth. Functional magnetic resonance imaging (fMRI) was employed to determine areas of activation in the cerebellar cortex in…
Touch is a crucial means of receiving information. This photo shows tactile markings identifying stairs for visually impaired people.
Touch can result in many different physiological reactions such as laughing at being tickled.