Blog Archives

Perception of continuous acoustic cues in speech revealed by the auditory N1 and P3 ERP components

Toscano, J. C., & McMurray, B. (2012, October). Poster presented at the 2012 Neurobiology of Language Conference, San Sebastian, Spain.

Abstract: Many models of speech perception posit that listeners perceive speech sounds categorically (i.e., that the units of speech perception are phoneme categories), and behavioral and electrophysiological evidence has supported this... Read more →

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Posted in Presentations

Measuring perceptual encoding and categorization of speech sounds using an ERP approach

Toscano, J. C., & McMurray, B. (2012, January). Poster presented at the 6th Conference of the Auditory Cognitive Neuroscience Society, Tucson, AZ.

Abstract:

To recognize speech, listeners must map continuous acoustic features in the sound signal onto discrete units (e.g., phonemes, words). An important question is whether speech sounds are initially encoded in terms of continuous cues or whether listeners perceive them only in terms of categories... Read more →

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Measuring acoustic cue encoding and categorization during speech processing using the auditory N1 and P3 ERP components

Toscano, J. C., & McMurray, B. (2011, November). Paper presented at the 10th Auditory Perception, Cognition, and Action Meeting, Seattle WA.

Abstract: An important question in speech perception is whether listeners encode speech sounds in terms of continuous acoustic cues at early stages of processing or whether they perceive them only in terms of categories... Read more →

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Posted in Presentations

Perceiving speech in context

Compensation for contextual variability at the level of acoustic cue encoding and categorization

Toscano, J. C. (2011). Doctoral dissertation, University of Iowa.

Abstract:

Several fundamental questions about speech perception concern how listeners understand spoken language despite considerable variability in speech sounds across different contexts (the problem of lack of invariance in speech)... Read more →

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Posted in Other publications and manuscripts

Continuous perception and graded categorization: Electrophysiological evidence for a linear relationship between the acoustic signal and perceptual encoding of speech

Toscano, J. C., McMurray, B., Dennhardt, J., & Luck, S. J. (2010). Psychological Science, 21, 1532-1540.

Abstract: Speech sounds are highly variable, yet listeners readily extract information from them and transform continuous acoustic signals into meaningful categories during language comprehension. A central question is whether perceptual encoding captures acoustic detail in a one-to-one fashion or whether it is affected by phonological categories... Read more →

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Posted in Journal Articles

Listeners’ sensitivity to acoustic detail in speech at the level of both early encoding and categorization

Toscano, J. C., McMurray, B., Luck, S. J., & Dennhardt, J. (2009, April). Poster presented at the 15th International Congress on Event-Related Potentials of the Brain, Indiana University, Bloomington, IN... Read more →

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Posted in Presentations