The primary visual cortex is located in which cerebral lobe?

• A. Frontal
• B. Temporal
• C. Parietal
• D. Occipital

Answer: (D)

The primary visual cortex sits in the posterior part of the occipital lobe, along the calcarine sulcus. This region, often called V1 or the striate cortex, is the first cortical area to receive visual input from the retina via the thalamus (LGN) and maintains a retinotopic map of the visual field. That means neighboring points in the field of view are processed by neighboring neurons, which is essential for detecting basic features like edges, orientation, and contrast. From here, information is sent to other visual areas for more complex processing, such as object recognition and spatial understanding. The frontal, temporal, and parietal lobes handle planning and movement, memory and recognizable objects, and spatial relationships, respectively, but the primary visual cortex itself is located in the occipital lobe.