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basic rest-activity cycle

A biological rhythm of waxing and waning alertness with a period of approximately 90 minutes in humans. During sleep it controls the cycles of REM and slow-wave sleep. Also called the ...

basic rest–activity cycle

basic rest–activity cycle n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... restactivity cycle n. A biological rhythm of waxing and waning alertness with a period of approximately 90 minutes in humans. During sleep it controls the cycles of REM and slow-wave sleep . Also called the restactivity cycle . BRAC ...

basic rest-activity cycle

basic rest-activity cycle  

A biological rhythm of waxing and waning alertness with a period of approximately 90 minutes in humans. During sleep it controls the cycles of REM and slow-wave sleep. Also called the rest-activity ...
chronobiology

chronobiology n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... n. The branch of biology concerned with biological rhythms . See biological clock , biological rhythm . See also alpha wave , basic restactivity cycle , beta wave , circadian rhythm , circannual rhythm , delta wave , gamma wave , infradian rhythm , menstrual cycle , sensorimotor rhythm , sleep–wake cycle , suprachiasmatic nucleus , telomere , theta wave , ultradian rhythm , Zeitgeber . [From Greek chronos time + English biology...

biological rhythm

biological rhythm n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...rhythm n. Any periodic, more-or-less regular fluctuation or cycle in a biological system or process that is not wholly under the control of environmental cues but is controlled centrally by a biological clock . It may be an ultradian rhythm such as a circannual rhythm or a menstrual cycle ; a circadian rhythm such as the sleep–wake cycle ; or an infradian rhythm such as an alpha wave , basic restactivity cycle , beta wave , delta wave , gamma wave , sensorimotor rhythm , or theta wave . See also chronobiology , pacemaker...

infradian rhythm

infradian rhythm n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...rhythm n . Any biological rhythm with a period of less than a day. See alpha wave , basic restactivity cycle , beta wave , delta wave , gamma wave , sensorimotor rhythm , theta wave . See also biological clock , chronobiology , Zeitgeber . Compare circadian rhythm , circannual rhythm , ultradian rhythm . [From Latin infra under + dies a...

sleep

sleep n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...III, and IV NREM sleep respectively. See also basal forebrain , basic restactivity cycle , circadian rhythm , delta sleep-inducing peptide , delta wave , dream ( 1 ) , dyssomnias , hypnagogic image , hypnopompic image , K complex , locus coeruleus , magnocellular nucleus , melatonin , nucleus gigantocellularis , paradoxical sleep , parasomnias , PGO spike , pineal gland , polysomnography , pseudoinsomnia , REM atonia , REM rebound , sleep spindle , sleep–wake cycle , sleepwalking , slow-wave sleep , subcoerulear nucleus...

hearing

hearing   Reference library

The Oxford Companion to the Mind (2 ed.)

Reference type:
Subject Reference
Current Version:
2006
Subject:
Science and technology, Psychology, Philosophy
Length:
3,446 words
Illustration(s):
4

...(see the lower part of Fig. 3). A sine wave may also be called a pure tone or simple tone, since it has a very ‘pure’ or ‘clean’ quality, like that of a tuning fork or the Greenwich time signal. For a pure tone the repetition rate, the number of complete cycles per second, is the frequency. The unit of one cycle per second is called the hertz (abbreviated Hz). The Greenwich time signal has a frequency of 1,000 Hz. The highest frequency we can hear varies from 16,000 to 20,000 Hz in young adults, but tends to decrease with increasing age. The lowest frequency...

chronobiology

chronobiology  

The branch of biology concerned with biological rhythms. See biological clock, biological rhythm. See also alpha wave, basic rest-activity cycle, beta wave, circadian rhythm, circannual rhythm, delta ...
infradian rhythm

infradian rhythm  

Any biological rhythm with a period of less than a day. See alpha wave, basic rest-activity cycle, beta wave, delta wave, gamma wave, sensorimotor rhythm, theta wave. See also biological clock, ...
arousal vs awareness

arousal vs awareness   Reference library

The Oxford Companion to Consciousness

Reference type:
Subject Reference
Current Version:
2010
Subject:
Science and technology, Psychology, Philosophy
Length:
1,438 words
Illustration(s):
2

...network is also known to be the most active ‘by default’ in resting non‐stimulated conditions ( see conscious resting state ). Awareness seems not exclusively related to the activity in the frontoparietal network but, as importantly, to the functional connectivity within this network and with the thalami. Long‐range cortico‐cortical and corticothalamo‐cortical ‘functional disconnections’ have been identified in the vegetative state and recovery is paralleled by a functional restoration of the frontoparietal network and part of its cortico‐thalamocortical...

psychology and the study of consciousness

psychology and the study of consciousness   Reference library

The Oxford Companion to Consciousness

Reference type:
Subject Reference
Current Version:
2010
Subject:
Science and technology, Psychology, Philosophy
Length:
3,641 words

...they increasingly give roles to consciousness in mental activity. Computational view . With the emergence of cognitive science and the computational view of mind , consciousness once more was given a—limited—place in science. On one part of the computer metaphor of *artificial intelligence ( AI ), mental activity, like the functioning of a computer, was said to be an instantiation of a universal *Turing machine , and so physical after all. On another part of that metaphor, the so‐called basic analogy , cognition runs in the brain the way software runs...

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