signal detection task

a task in which the observer is required to discriminate between trials in which a target stimulus (the signal) is present and trials in which it is not (the noise). Signal detection tasks provide objective measures of perceptual sensitivity. Also called detection task.

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Psychology term of the day

January 30th 2025

narcotic stupor

a state of lethargy or limited mobility and decreased responsiveness to stimulation due to the effects of an opioid drug. This state may border on loss of consciousness and may be followed by coma in extreme cases.