PSYC-1105EL Lecture 9: Chapter 5
3 Jul 2015
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Focusing conscious awareness on a speci c stimulus. Sense lots of info, but only consciously process a small fraction at a time. Change (and inattentional) blindness: basketball example video, experimenter example video. Sleep: sleep is linked with biological rhythms/cycles. Circadian rhythms biological rhythms/changes that occur across a 24-hour cycle. More sleep: bright lights in the home can delay sleep. Stage 1: theta waves, hallucinations, feelings of falling/ oating at this point. Stage 2: sleep spindle , loss of awareness. Stage 3: 20-50% activity delta waves slow waves. Stage 4: >50% activity delta waves, dif cult to wake up; sleepwalking and bed wetting. Rem: rapid eye movements dreaming, theta and beta waves, paradoxical sleep: Individual differences: some need 9+ hours, others only need 6 hrs to function: sleep debt: accumulation of missed hours of sleep, effects of sleep deprivation. Coren, 1996: traf c accident incidents before and after daylight savings 1. Age: can cause (if not treated)
