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The effect of stimulus range on two-interval frequency discrimination

By William J. Matthews and Neil Stewart


It has traditionally been thought that performance in two-interval frequency discrimination tasks decreases as the range over which the standard tone varies is increased. Recent empirical evidence and a reexamination of previous results suggest that this may not be the case. The present experiment found that performance was significantly better when the standard roved over a wide range (1500 Hz) than a narrow range (30 Hz). This pattern cannot readily be accommodated by traditional models of frequency discrimination based on memory or attention, but may be explicable in terms of neural plasticity and the formation of perceptual anchors. \u

Topics: RC0321, BF
Publisher: Acoustical Society of America
Year: 2008
OAI identifier: oai:wrap.warwick.ac.uk:605

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