Psychometric functions for hybrid difference discrimination/increment detection tasks | Zendy

Daniel Shepherd | Zendy; Michael J. Hautus | Zendy; Hamish Hutchinson | Zendy

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Psychometric functions for hybrid difference discrimination/increment detection tasks

Author(s) -

Daniel Shepherd,

Michael J. Hautus,

Hamish Hutchinson

Publication year - 2008

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.2987467

Subject(s) - psychometric function , stimulus (psychology) , significant difference , computer science , just noticeable difference , psychophysics , cognitive psychology , psychology , artificial intelligence , mathematics , statistics , perception , neuroscience

Psychometric functions collected from difference discrimination tasks typically have slopes near 1, whereas those from increment detection tasks have slopes near 2. Experiments exploring the effect of stimulus configuration on the psychometric function were undertaken. Some stimuli were configured to conform to difference discrimination and increment detection tasks, while other "hybrid" stimulus configurations had physical properties associated with both tasks. The results suggest that these hybrid configurations may have psychophysical properties that fall in between those found for difference discrimination and increment detection tasks.

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