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ERIC Number: ED024950
Record Type: Non-Journal
Publication Date: 1968-Sep-1
Pages: 10
Abstractor: N/A
Reference Count: N/A
A New Test for Categorical Perception.
Kopp, James
Synthetic speech stimuli which varied along a continum defined in terms of the relative onset time of the first formant and which are characteristically associated with the phonemes /do/ and /to/ were presented to two groups of subjects for labelling. The stimuli presented to each group were identical except for a one-step shift on the stimulus continuum. It was found that the response probabilities over the stimuli common to the two stimulus sets were essentially identical for the two groups. Subjects did not evidence a shift in labelling judgments concomitant with a shift on the stimulus continuum. Such a shift would occur if subjects were simply partitioning the continuum psychophysically. It is concluded that categorical perception was observed and that the stimulus-shift paradigm may be a new technique for isolating the categorical perception effect. (Author/DO)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: Office of Education (DHEW), Washington, DC. Bureau of Research.
Authoring Institution: Michigan Univ., Ann Arbor. Center for Research on Language and Language Behavior.