Somatosensory Area 1, or S1, is for touch and proprioception in the somatosensory system. The somatosensory system feeds the Brodmann Areas 3, 1 and 2 of the primary somatosensory cortex.But there are also pathways for proprioception (via the cerebellum), and motor control (via Brodmann area 4).isual Area 1, or V1, is used for vision, via the visual system to the primary visual cortex. The sense of sight or vision enables us to see our external environment. It provides the richest and most detailed source of sensory information.
Sharp stabbing pain in middle left back side? Dr. Roberto Feliz Dr. Feliz. Middle left: There are many causes of one sided back pain: localized muscle strain with spasm, facet joint irritation/inflammation is your most likely cause. The facet joints is the site where the vertebral body meet in your back.
The resulting chest pain usually feels like a sharp, stabbing pain in either the center or the left side of your chest. In some patients, though, the pain is more of a dull pressure that spreads to the jaw and/or left arm. This pain can worsen with breathing or movement.owever, because so many problems can cause chest pain â from heart attack to acid reflux â you should always see a doctor as soon as possible to determine the cause. In the meantime, there are ways to ease the pain on your own while waiting to receive professional attention.