ABSTRACT
Since its introduction some 25 years or so ago, signal-detection methodology has enjoyed wide application in many areas other than its psychophysical origins. For example, its impact has been felt in such diverse realms as vigilance situations, personality differences, memory, animal learning, clinical psychology, military target detection, weather forecasting, reaction times, subliminal perception, risk taking, medical decision making, and quality control in industry, to name but a few.
