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Psyc Notes Test 2.doc

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PSYC 1010
Rebecca Jubis

Psyc Notes Test2MODULE 7 Brain statesConsciousnessConsciousness our awareness of ourselvesour environmentSpontaneous ex daydreaming drowsiness dreamingPhysiological ex hallucinations orgasm foodoxygen starvationPerception memory thinking language attitudes all operate on 2 levels often simultaneously as a principal of dual processing Conscious deliberate high road Unconscious automatic low roadblindsight condition where someone can respond to a visual stimulus without consciously experiencing it visual perception track enables us to think about the worldrecognize things and plan future actionsvisual action trackguides our moment to moment movementsAttentionselective blindnessfocusing of conscious awareness on particular stimulusinattentional blindnessfailing to seenotice things when our attention is occupied elsewherechange blindness failing to notice changes in the environmentMODULE 8 SleepDreamsBiological Rhythms our bodies roughly synchronize with the 24 hour cycle of day by an internal biological clock called the circadian rhythmabout every 90 minutes we cycle through 4 sleep stages REM NREM1NREM2 NREM3alpha waves relatively slow brainwaves of a relaxed awake statedelta waves large slow brain waves associated with deep sleepNREM1This is a stage between sleep and wakefulness The muscles are active and the eyes roll slowly opening and closing moderatelyNREM2 20 min stage theta activity is observed and sleepers become gradually harder to awaken the alpha waves of the previous stage are interrupted by abrupt activity called sleep spindles and Kcomplexes NREM3 30 min slowwave sleep SWS SWS is initiated in the preoptic area and consists of delta activity high amplitude waves at less than 35 Hz The sleeper is less responsive to the environment many environmental stimuli no longer produce any reactionsREM approx every 90 mins rapid eye movement REM where most muscles are paralyzed REM sleep is turned on by acetylcholine secretion and is inhibited by neurons that secrete serotonin This level is also referred to as paradoxical sleep because the sleeper although exhibiting EEG waves similar to a waking state is harder to arouse than at any other sleep stage brains motorcortex is active during REM but the brainstem blocks the messages not allowing you to movesleep cycle repeats itself every 90 mins NREM3 sleep gets shorter REMNREM1 cycles get longerRetrieval practiceNREM1fleeting imagesNREM3minimal awarenessREMstory like dreams
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