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Re: Phoneme categorization in noise

Are you using real speech or synthetic-speech tokens Daniela?  If the latter, what acoustic cue are you varying in the /pa-ba/ continuum?  VOT? F1 cutback? etc.

On 15 Feb 2012, at 12:00, Daniela Sammler wrote:

Dear list,

I need to increase the difficulty of a phoneme categorization task (e.g. "ba" vs "pa"). One possibility would be to present the phonemes in noise to receive a shallower psychometric function.

Is this the way to go or is there any other/better way to increase difficulty in phoneme categorization?

Thank you very much!
Kind regards,

Daniela SAMMLER, Ph.D.
Max Planck Institute for
Human Cognitive and Brain Sciences
Stephanstr. 1a
04103 Leipzig
phone: +49 341 9940 2679
fax:   +49 341 9940 2260

Dr José Ignacio Alcántara

Department of Experimental Psychology
University of Cambridge
Downing Street
Cambridge, UK
Phone: 44 (0)1223 764412
Fax: 44 (0)1223 333564

Fellow of Fitzwilliam College
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Phone: 44 (0)1223 332026