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.
In the lumbar spine (lower back), a compressed nerve root can be the cause of lower back pain, but also numbness, tingling and muscle weakness in the legs and feet, typically on one side of the body. Meanwhile, a herniated cervical disc (in the neck) can cause neck pain and weakness in an arm and hand. In addition to muscle weakness, the most common symptoms of a herniated disc are: The sensation of âpins and needlesâ.