PSYB65H3 Chapter Notes - Chapter 5: Ideomotor Apraxia, Primary Motor Cortex, Supplementary Motor Area
Document Summary
The somatosensory information that your skin, joints, and muscles provide ensures that your brain makes accurate movements. Many of the adjustments that we make to our movements are guided by somatosensory feedback. Much of the somatosensory information that we receive about the world comes from sensory receptors in the skin. Nociception: sensations of pain and temperature (ventral spinothalamic tract) Hapsis: sensations of fine touch and pressure (dorsal spinothalamic tract) Proprioception: awareness of the body and its position in space (dorsal. Most of the sensory receptors in the skin are mechanoreceptors, which react to distortion such as bending or stretching. There are 2 main sensory pathways in the brain, which are named for their position in the spinal cord and the connections made: Hierarchical organization of the sensorimotor system: association cortex, secondary motor cortex, primary motor cortex, brain stem motor nuclei, spinal motor circuits.
