Choose the correct answer from the options given below:

Trace the pathway of visual information processing
A. Geniculate nuclei send information to striate cortex.
B. Information reaches to extrastriata cortex.
C. Retina sends to lateral geniculate nucleus.
D. Information reaches to inferior temporal cortex and parietal cortex.
E. Stimulation of visual receptor.

Correct option is B

The correct answer is E → C → A → B → D.
1. The process begins with stimulation of visual receptors (E) in the retina, where light energy is converted into neural signals by photoreceptors.
2. The retina (C) transmits these signals to the lateral geniculate nucleus (LGN) of the thalamus.
3. The geniculate nuclei (A) then relay this information to the striate cortex (also called the primary visual cortex or V1), responsible for basic visual processing.
4. From the striate cortex, the information is sent to the extrastriate cortex (B), which processes complex aspects of vision such as motion and form.
5. Lastly, information is transmitted to the inferior temporal and parietal cortex (D), where object recognition (ventral stream) and spatial orientation (dorsal stream) are processed.

Information Booster

Visual Information Processing Pathway

1. Photoreceptor Stimulation (E):
Begins with light entering the eye and stimulating rods and cones in the retina.

2. Lateral Geniculate Nucleus (C):
The LGN is part of the thalamus, functioning as a relay center for visual signals to the cortex.

3. Primary Visual Cortex/Striate Cortex (A):
Also called V1, it processes basic features such as edges, contrast, and orientation.

4. Extrastriate Cortex (B):
Includes V2, V3, V4, V5, handling more complex visual properties like motion, depth, and color.

5. Temporal and Parietal Cortices (D):
The ventral stream (temporal cortex) processes what the object is.
The dorsal stream (parietal cortex) processes where the object is in space.