PSY-B - Psychology PSY-B 320 Chapter Notes - Chapter 11-12: Spinothalamic Tract, Body Awareness, Reticular Formation
23 Mar 2017
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Disruption of body awareness: movement abnormalities result from selective damage to neurons that carry proprioceptive information (cid:862)proprio(cid:272)eptio(cid:374) is like the e(cid:455)es of the (cid:271)od(cid:455), the (cid:449)a(cid:455) the (cid:271)od(cid:455) sees itself. A(cid:374)d if it goes it"s like the (cid:271)od(cid:455)"s (cid:271)li(cid:374)d. (cid:863) Feeling and treating pain: pain is a fact of life. 30% of visits to physicians are for pain symptoms, as are 50% of emergency room visits. Pain has many causes: pain is necessary. The occasional person born without pain receptors experiences body deformities through failure to adjust posture, and acute injuries through failure to avoid harmful situations. We may feel itchy when a foreign object is on our body. We also frequently feel an itch in the absence of an obvious stimulus. Responding to pain: gate theory of pain (melzack & wall, 1965) Activities in different sensory pathways play off against each other and so determine whether and how much pain is perceived as a result of an injury.
