Final answer:
The somatosensory complex is associated with the parietal lobe of the brain which processes sensory information such as touch, temperature, and body position.
Step-by-step explanation:
The somatosensory complex is primarily associated with the parietal lobe of the brain. The parietal lobe is situated immediately behind the frontal lobe, and it includes the somatosensory cortex, which is crucial for processing various sensory information from the body. This information includes touch, temperature, pain, as well as proprioception and kinesthesia, which are the senses of body position and movement.
The parietal lobe's role is distinct from that of other brain lobes: the occipital lobe is key for vision, the temporal lobe for hearing and memory, and the frontal lobe for motor functions, decision-making, and personality. Within the parietal lobe, the primary somatosensory cortex, located in the postcentral gyrus (Brodmann's areas 1, 2, and 3), houses a somatosensory map of the body for processing tactile sensations. Each body part's representation in this cortex is proportional to the sensitivity and number of nerves in that part.