The range effect: Duration estimates increase with pitch change

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Title: The range effect: Duration estimates increase with pitch change
Author: Sandor, Aniko
Advisor: Lane, David M.
Degree: Doctor of Philosophy thesis
Abstract: Duration is a fundamental characteristic of events, intervals, and episodes. Its estimation is affected by a multitude of non-temporal factors such as whether the duration interval is filled or empty, its modality, and cognition during the interval. The central question addressed in this dissertation is whether the estimated duration of a stimulus varies with its pitch and, if so, whether the relation depends on the type of the stimulus, its duration, and of its degree of change. The range effect: the phenomenon that for the same duration sounds with larger pitch range are estimated longer than sounds with smaller pitch range, was explored in a series of ten experiments. The range effect was smaller for small durations and increased as duration increased up to 900 ms, then decreased. The effect was larger for ascending than for descending sounds and for glides than for staircase and discrete sounds. Furthermore, it was demonstrated with both magnitude estimation and comparison. These results have implications for time perception models such as Block's attentional-gate model.
Citation: Sandor, Aniko. (2007) "The range effect: Duration estimates increase with pitch change." Doctoral Thesis, Rice University.
Date: 2007

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