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Lexical neighborhood effects in phonetic processing

R S Newman1, J R Sawusch, P A Luce

  • 1Department of Psychology, Park Hall, State University of New York at Buffalo 14260, USA. rochelle@art.fss.buffalo.edu

Journal of Experimental Psychology. Human Perception and Performance
|June 1, 1997
PubMed
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Lexical neighborhood, like lexical status, influences spoken word recognition. This study found that the density of words similar to a perceived sound affects how listeners identify it.

Area of Science:

  • Psycholinguistics
  • Cognitive Science
  • Speech Perception

Background:

  • Spoken word recognition is influenced by lexical factors.
  • The "lexical effect" shows that word status affects phonetic perception (Ganong, 1980).
  • The role of lexical neighborhood density in word perception remains less understood.

Purpose of the Study:

  • To investigate the influence of lexical neighborhood density on spoken word recognition.
  • To compare the effects of lexical neighborhood with those of lexical status.

Main Methods:

  • Created nonword series varying in lexical neighborhood density.
  • Presented participants with auditory stimuli along voice-onset time continua.
  • Assessed participants' phonetic categorization and word recognition.

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Main Results:

  • Lexical neighborhood density significantly affected word recognition.
  • The influence of lexical neighborhood was comparable to that of lexical status.
  • Listeners' perception shifted based on the density of surrounding lexical neighbors.

Conclusions:

  • Lexical neighborhood density is a crucial factor in spoken word recognition.
  • Both lexical status and neighborhood density shape phonetic perception.
  • Findings contribute to understanding the complex interplay of factors in auditory word processing.