Question

The sensation of sight in human brain is perceived by
A. Optic lobes
B. Occipital lobes
C. Association area of frontal lobes
D. Somaesthetic area of parietal lobes

Answer 1

The human brain has four lobes: frontal, parietal, temporal, and occipital. The main functions of each of them are control of movements, taste, and touch, sight, and memories respectively.

Step by step answer: Each side of the human brain has four lobes. The frontal lobe is responsible for cognitive functions and control of voluntary movements. The parietal lobe processes information about surroundings like temperature, taste, touch, and movement, and the occipital lobe is primarily responsible for vision. The temporal lobe is involved in the processing of memories and integrating them with sensations of taste, sound, sight, and touch. The occipital lobe derives its name from its location. It lies below the occipital bone of the skull. It is the smallest of all the four lobes present in the brain. There are different sections of the occipital lobe. They are as follows:
-Lingula
-The secondary visual cortex is also known as Brodmann areas 18 and 19 or V2, V3, V4, V5 which surrounds the primary visual cortex.
-Lateral geniculate bodies
-The primary visual cortex also called Brodmann area 17 or V1
-Dorsomedial stream

The functions of the occipital lobe are:
-Distance calculation
-Depth perception and calculation
-Determination of color
-Recognition of objects
-Movement recognition and direction
-Recognition of faces
-Relating vision and objects with memory

Note: The optic lobes are present in the brains of many animal species. The optic lobe of arthropods is a part of the protocerebrum that resides behind the arthropod eye and is responsible for the processing of visual information for the organism. The optic lobes of a bird or reptile are also part of the midbrain. The birds have the best vision as compared to any other vertebrate. The large optic lobes of a bird process the complex signals sent from the eye to the brain.