Damage to which lobe would most affect processing of touch?

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

Answer: (C)

Touch processing is handled by the parietal lobe, where the primary somatosensory cortex sits in the postcentral gyrus. Sensory information from the skin and muscles travels up through the somatosensory pathways to the thalamus and then to this cortex, which creates a detailed body map of touch, temperature, and proprioception. Damage to this area disrupts tactile sensation and the ability to localize touch, reflecting its role in somatic sensation. The other lobes serve different functions: the occipital lobe processes vision, the temporal lobe handles hearing and memory, and the frontal lobe is involved in motor planning and higher cognitive functions. Additionally, touch from one side of the body is typically processed in the opposite (contralateral) parietal lobe, reinforcing why injury here most affects tactile processing.