Abstract
The discriminated lever-press shock-avoidance performance of four rats was observed to two white noise warning signals, one 5 dB above and the other 5 dB below the white noise background level. Although the warning signals might be expected to elicit equal generalized inhibitory tendencies and might be viewed as involving equal stimulus change from background, three of the four Ss each showed significantly greater performance to the higher intensity warning signal and the fourth significantly poorer performance to that stimulus.
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Birkimer, J.C., Drane, D.L. Stimulus intensity dynamism with stimuli equal decibel distances above and below background. Psychon Sci 12, 213–214 (1968). https://doi.org/10.3758/BF03331275
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DOI: https://doi.org/10.3758/BF03331275