PSY 3301 Lecture Notes - Glabrousness, Sensory Neuron, Vestibular System
Document Summary
Tells us what the body is up to and what"s going on in the environment by providing bodily sensations such as touch, temperature, pain, and position in space. Is unique in our senses in that it is it distributed throughout the body rather then confined to just the head: one part is confined to a singe organ. The inner ear vestibular system for balance and head movement. For the efferent motor pathway, we went cortex to neuron. For this afferent pathway, we start the receptors and move towards the brain. Our body is covered with somatosensory receptors. Body hair, receptors on and in the skin, muscles, and joints. The density of these receptors, which varies greatly across the body, determines our sensitivity to stimulation. Areas with larger numbers of receptors are more sensitive to stimulation than areas with relatively fewer receptors. Hairy skin: tends to correspond to the areas less sensitive to touch.
