PSYC33H3 Lecture Notes - Lecture 4: Perfusion, Accelerated Aging, Neuroplasticity
Document Summary
It affects a lot of people, spectrum of concussions transient to sustain for a long period of time. 10 15% individuals experience symptoms beyond normal recovery of 3. Multiple-concussions may result in persist post-concussive symptoms. Currently, no accepted standard of care/treatment for concussions months. Bell-ringer, seeing stars, dazed: concussion or mild tbi. Definition: immediate and temporary alteration of mental functioning due to trauma, post-traumatic amnesia: 24 hours or less, do not need loss of concussion. Any loss needs to be < 30 minutes: glasgow coma scale: 13 15. Objective measure of consciousness (cid:523)right now )(cid:495)m at 15(cid:524: does not require direct hit to head (eg. whiplash, rarely detected using conventional neuroimaging technique. Rotational: sudden rotation of the brain, white matter may be particularly vulnerable. Axons being stretched; damage parts of nerve fiber. One damaged = gone forever: prolonged recovery, stretching and damaging brain cells; chemical changes. May make brain more sensitive to stress or injury until it fully.
