Psychology Chapter 5: Consciousness Flashcards
_______ is a state of consciousness in which we are awake and able to think.
Alertness
_________ is the awareness of internal and external stimuli
Consciousness
Conscious and unconscious processes
are different levels of _________
awareness.
The _______ is a device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp.
electroencephalograph (EEG)
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_________ are periodic fluctuations in physiological functioning
Biological rhythms
_________ are the 24-hour biological cycles found in humans and many other species.
Circadian rhythms
Research indicates that people generally fall asleep as their body temperature begins to ____ and they awaken as it begins to _____ once again
drop
ascend
When exposed to light, some receptors in the retina send direct inputs to a small structure in the hypothalamus called the suprachiasmatic nucleus (SCN) . The SCN sends signals to the nearby_______, whose secretion of the hormone melatonin plays a key role in adjusting biological clocks
pineal gland
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electromyograph (EMG), which records _____ activity and tension; an electrooculograph (EOG), which records ____ movements; and electrocardiograph (EKG), which records the contractions of the heart
muscular
eye
Fill in the missingg items
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What “sleep stage” is able to perceive, process, access information,vand express that information verbally?
What waves are present?
Awake
Alpha & Beta
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What stage has Sleep spindles and K complexes?
Wave type?
Stage 2
Theta
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What stage are small irregular brain waves?
Lasts about 10-12 mins
Stage 1
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Stages 2 and 3 of the sleep cycle, your respiration rate, heart rate, muscle tension, and body temperature continue to ______
decline
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_____ stage is also marked by irregular breathing and pulse rate.
REM
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REM sleep is a deep stage of sleep marked by rapid eye movements, ________ brain waves, and dreaming.
REM = memory consolidation
high-frequency
REM accounts for about 50% of babies’ sleep, as compared with 20% of adults’ sleep.
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