Aftereffect arising from unidirectional change of sound level in a tone: frequency specificity with a complex adaptor |
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Authors: | A H Reinhardt-Rutland |
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Institution: | Department of Psychology, University of Ulster, Newtownabbey, Northern Ireland. |
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Abstract: | Subjects adapted to square-wave adaptors, stimuli containing odd harmonics of the fundamental, and, to provide baseline data, sinusoidal adaptors matching the square-wave's fundamental. Nulls were obtained for various frequencies of the test stimulus. At any given frequency, the baseline null was subtracted from the null for square-wave adaptation. These corrected nulls indicated frequency-specific aftereffects at the third and fifth harmonics. The evidence is consistent with previous attempts to link the aftereffect of changing sound level in a tone with the auditory movement aftereffect because the latter may also show frequency specificity. |
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