PSYC 2000 Chapter : Chapter 4
Document Summary
Forms of consciousness: consciousness: our awareness of ourselves and our environment. Selective attention: selective attention: the focusing of conscious awareness on a particular stimulus, cocktail party effect: ability to attend to only one voice among many. Change blindness: change blindness: failing to notice changes in the environment. Pop out phenomenon: pop out: stimulus that draws our eye and demands our attention (something that"s different tends to stand out) Why do we sleep: need differs with age and individuals, too little results in sleep debt . Theories of why we sleep: sleep protects, sleep helps us recover, sleep helps us remember, sleep plays a role in the growth process. Sleep deprivation: fatigue and subsequent death, impaired concentration, emotional irritability, depressed immune system, weight gain, accidents. Sleep disorders: insomnia: a persistent inability to fall asleep, narcolepsy: overpowering urge to fall asleep that may occur while talking or standing up.
