Abstract
For brief noise stimuli, Efron has reported data that indicate that perceptual offset occurs approximately 130 msec after stimulus onset. For auditory stimuli, his data were based on the performance of two observers. Using two subjects, Penner repeated Efron’s procedure and obtained data that did not replicate his findings. Because the data base is scant and divergent, We extend it by investigating the perceptual offsets of 19 observers. For these observers, the relation between the time of stimulus onset and the perception of offset is quite variable, suggesting the importance of bias or strategy in such tasks.
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This research was supported by a grant from the National Institute of Health. I would like to thank Lynda Nelson and Rhona Bossin for running the subjects and Michael Gottlieb for writing the program.
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Penner, M.J. Variability in offset judgments. Bull. Psychon. Soc. 12, 32–34 (1978). https://doi.org/10.3758/BF03329616
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DOI: https://doi.org/10.3758/BF03329616