The Secondary Somatosensory Cortex (S2) is a region of the brain located in the parietal lobe that processes complex tactile information, including texture, size, and shape, and integrates sensory inputs from both sides of the body. It plays a crucial role in higher-order somatosensory processing and is involved in the perception of pain, temperature, and proprioceptive feedback, contributing to our understanding of object manipulation and sensory-motor integration.