Which brain region receives processed retinal signals via the LGN and sends information to the primary visual cortex?

Which brain region receives processed retinal signals via the LGN and sends information to the primary visual cortex?

• A. Primary visual cortex
• B. Hippocampus
• C. Inferior colliculus
• D. Prefrontal cortex

Answer: (A)

Visual information reaches the cortex after passing through the LGN, a thalamic relay that forwards the retinal signal for cortical processing. The primary visual cortex is the first cortical area to receive this LGN output. It holds a retinotopic map of the visual field and begins extracting basic features such as edges, orientation, and spatial frequency. From there, the processed information is sent onward to higher visual areas for more complex analysis. The other regions listed aren’t part of this main visual relay: the hippocampus is involved in memory, the inferior colliculus handles auditory processing, and the prefrontal cortex governs higher-order cognition.

Visual information reaches the cortex after passing through the LGN, a thalamic relay that forwards the retinal signal for cortical processing. The primary visual cortex is the first cortical area to receive this LGN output. It holds a retinotopic map of the visual field and begins extracting basic features such as edges, orientation, and spatial frequency. From there, the processed information is sent onward to higher visual areas for more complex analysis. The other regions listed aren’t part of this main visual relay: the hippocampus is involved in memory, the inferior colliculus handles auditory processing, and the prefrontal cortex governs higher-order cognition.