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Psych Final Ch 5

Ch 5

Consciousness our awareness of ourselves and our environment; it involves the subjective experience of the world, our bodies, and our mental perspectives
Biological rhythm a periodic, more or less regular fluctuation in a biological system; they may or may not have psychological implications
Endogenous biological rhythms circadian (once every 24 hours, infradian (occur less frequently than once a day), and ultradian rhythms (occur more frequently than once a day)
Circadian rhythm once about every 24 hours
Suprachiasmatic nucleus (SCN) the body’s clock; located in the hypothalamus, regulates melatonin which is a hormone secreted by the pineal gland
Melatonin induces sleep; used to regulate disturbed sleep-wake cycles
Internal desynchronization a state when biological rhythms are not in phase with each other
Seasonal affective disorder (SAD) a controversial disorder in which a person experiences depression during the winter and an improvement of mood in the spring
Premenstrual syndrome when omen notice depression or irritability when these noods occur premenstrually
Realms of sleep stage 1: feel self-drifting on the edge of consciousness; stage 2: minor noises won’t disturb you; stage 3: breathing and pulse have slowed down; stage 4: deep sleep
Rapid eye movement (REM) sleep increased eye movement, loss of muscle tone, dreaming
Functions and benefits of sleep the exact function of sleep is uncertain but sleep appears to provide time for the body to carry out important functions
Sleep deprivation leads to decreases in physical and mental functioning; increase levels of the stress hormone cortisol; possibly damage brain cells important for learning and memory
Sleep apnea breathing briefly stops during sleep, causing the person to choke and gasp and momentarily waken
Narcolepsy sudden and unpredictable daytime attacks of sleepiness or lapses into REM sleep
Psychoanalytic theory of dreams dreams might provide insight into our unconsciousness
Manifest versus latent content of dreams manifest includes aspects of the dream we consciously experience while latent includes unconscious wishes and thoughts symbolized in the dream
Problems focused approach to dreams may reflect ongoing conscious issues such as concerns over relationships, work, sex, or help
Cognitive approach to dreams dreaming is the same kind of activity we engage in when we are awake; predicts that if we are awake, but cut off from external stimulation, out thoughts would have the same hallucinatory quality we experience in dreams
Activation-synthesis theory of dreams dreaming results from the cortical synthesis and interpretation of the neutral signals triggered by activity in the lower part of the brain
Hypnosis a procedure in which that practitioner suggests changes in the sensations, perceptions, thoughts, feelings, or behaviors of the subject
Dissociation theories of hypnosis it’s a split in consciousness in which one part of the mind operates independently of consciousness; during hypnosis, dissociation occurs between an executive control system and other systems of thinking and acting
Sociocognitive explanation of hypnosis effects hypnosis resuls from interaction between social influence of the hypnotist and the beliefs and expectations of the subject
Altered states of consciousness Currently Undefined
Psychoactive drug substance capable of influencing perception, mood, cognition, or behavior
Stimulants speed up activity
Depressants slow down activity in the CNS
Opiates relieves pain
Psychedelic drugs disrupt normal thought processes
Sigmund Freud concluded that dreams might provide insight into our unconsciousness
Created by: lygordon
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