Question

[REGARDING THE SENSORY AND MOTOR HOMUNCULUS] What is the adaptive or evolutionary value to the amount of space dedicated to each body part? How does the human homunculus compare to that of other animals? Why?

Answer 1

Motor homunculus is the form of a topographic representation of the body part and their correspondent. This is the form of representation in which the postcentral gyrus of the parietal lobe is observed. Motor homunculus is the kind of representation of the primary somatosensory cortex in which correspondence of an area stimulator. Motor and sensory homunculus are of the relative size of each body area in which the cerebral cortex is dedicated to that specific area.
The adaptive and evolutionary value to the amount of the space which is dedicated to each body of part involves most of the activity in the cerebrum of the brain cells. The cortex possesses the functions including the somatosensory cortex and frontal position of the parietal lobe. Crossing over of the nerve tract the right portion gets the input while the left portion gets the space in the brain.
Human homunculus as compared to that of other animals because of the distorted representation of the human body. There are different areas of the face that are represented in the different forms and strange-looking proportions. They possess the sensory from the hand that terminates the large areas of the brain and result in the homunculus form. Homunculus man is the kind of popular man who is sensory part of the cerebral cortex involved different sensation that takes place in the overall part of the body.