NEUR 2600 Lecture Notes - Dorsal Root Ganglion, Proprioception, Dorsal Root Of Spinal Nerve
Document Summary
When he was eighteen, working as butcher, cut his finger. Finger got red, got fatigued, had trouble walking, couldn"t get out of bed, no one knew what to do. Healthy young man, lost the compete ability to do anything. Learned to walk, learned to drive a car. One of the things, that he lost, was the dorsal root ganglion, got a virus that killed them. Couldn"t have any feedback from joints or muscles or anything. Wrote a book (pride and a daily marathon) 10 cases of this condition around the world. Hapsis - not only touch, but being touched. When he was stimulating the brain, the somatosensory cortex, people would report sensations from mouth and face, head, body, The density of receptors on the body relate to the area of the sensory cortex given to a body part. Rodents have a representation of their vibrissae in sensory cortex.
