Effects of response disparity on stimulus and reinforcer control in human detection tasks

Article Abstract:

Detection performance for humans can be seen, similar to research in pigeon behavior, as discriminated operants. Manipulated stimulus and response disparity reduced discrimination although the former often reduced bias while the latter did not.

Statistical Data Included, Analysis, Psychological research

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Discriminability and sensitivity to reinforcer magnitude in a detection task

Article Abstract:

Signal detection and identification are fundamental aspects of behavior like birds must decide if a passing butterfly is edible or toxic, motorists must decide whether it is safe to overtake, and pathologists must decide whether a certain cell is cancerous or not. Behavioral models of detection attempt to describe these decisions in terms of stimulus control, which is the effects of the psychophysical disparity between the stimuli and reinforcer control and is the effects of the consequences for choices.

Science & research, Pigeons, Reinforcement (Psychology), Signal detection (Psychology)

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Human signal-detection performance: effects of signal presentation probabilities and reinforcer distributions

Article Abstract:

Four standard two-choice signal-detection experiments involving varied signal presentation probability as well as a constant and equal reinforcement distribution are conducted, with college students participating in one experiment. In three of the experiments, a systematic response bias for reporting the stimulus presented least often was noted among the students. This result runs contrary to current theories on stimulus detection.

College students, Stimulus intensity

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