dysfunctions associated with sleep, sleep stages, or partial arousals

one of four basic types of sleep disorders, differentiated from the other types by the presence of physiological activations at inappropriate times during sleep rather than by abnormalities in the mechanisms involved in the timing of sleep and wakefulness. This type of sleep disorder includes nightmare disorder, sleep terror disorder, and sleepwalking disorder; in DSM–IV–TR and DSM–5, these are classified as parasomnias.

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Psychology term of the day

May 8th 2024

measures of intelligence

a series of norm-referenced tests used to determine an individual’s ability to learn, reason, understand concepts, and acquire knowledge. See EEG measures of intelligence; ERP measures of intelligence; fMRI measures of intelligence. See also assessment of intelligence.