PSYCO327 Lecture Notes - Lecture 7: Slow-Wave Sleep, Synaptic Pruning, Sleep Hygiene

• School: University of Alberta
• Department: Psychology
• Course: PSYCO327
• Professor: Jiawen Chen

Document Summary

Jan. 30th adolescent brain development and sleep. Gray matter: cellular elements (ex. cell bodies, dendrites, and axon terminals) Cell proliferation overproduction of both neurons and synapses. Synaptic pruning selective elimination of least used neurons and synapses. Myelination insulation of the axons (especially in prefrontal cortex) (cid:862)use it o(cid:396) lose it(cid:863) Involved in processing emotions, social info, and rewards (cid:862)(cid:396)e(cid:449)a(cid:396)d s(cid:455)ste(cid:373)(cid:863: develops earlier and faster. Involved in higher level executive functions (ex. reasoning, planning, self-regulation: de(cid:448)elops g(cid:396)aduall(cid:455), does(cid:374)"t (cid:396)ea(cid:272)h (cid:373)atu(cid:396)it(cid:455) u(cid:374)til ea(cid:396)l(cid:455) adulthood. The imbalance model: behaviours of adolescence are different form children and adults in some circumstances possibly due to the imbalance in brain development, during this period, largest difference between the developments of the different regions. Implications: (cid:862)pee(cid:396) i(cid:374)flue(cid:374)(cid:272)e a(cid:374)d adoles(cid:272)e(cid:374)t (cid:271)eha(cid:448)iou(cid:396) (cid:894)a(cid:374)d the (cid:271)(cid:396)ai(cid:374)(cid:895)(cid:863, when adolescents play the stoplight game, they crash more often when they believe their friends are watching them does(cid:374)"t o(cid:272)(cid:272)u(cid:396) fo(cid:396) adults, adolescent risk-taking. Stages of sleep : nrem sleep = slow- wave sleep.