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Feature migration in time: reflection of selective attention on speech errors.

Nazbanou Nozari¹, Gary S Dell

¹Center for Cognitive Neuroscience, University of Pennsylvania, and Moss Rehabilitation Research Institute, Philadelphia, Pennsylvania 19104, USA. nozari@sas.upenn.edu

Journal of Experimental Psychology. Learning, Memory, and Cognition

|January 25, 2012

Summary

This summary is machine-generated.

Focused attention on a word in speech production reduces errors on that word but increases errors on surrounding words. This suggests attention impacts speech production at the moment of utterance, not before or after.

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Area of Science:

Cognitive Psychology
Speech Production
Linguistics

Background:

Phonological speech errors offer insights into speech production mechanisms.
The role of focused attention in modulating speech errors is not fully understood.

Purpose of the Study:

To investigate how focused attention affects phonological speech errors.
To determine the temporal dynamics of attention's influence on speech production.

Main Methods:

Participants recited four-word tongue twisters in three experiments.
Focused attention was directed to specific words using varied instructions (avoid errors, stress, silent utterance).

Main Results:

Attending to a word decreased errors on that specific word.
Conversely, errors on surrounding words increased when attention was focused.
This pattern did not stem from increased phonemic migrations from the attended word.

Conclusions:

Attention's effect on speech errors is localized to the moment of word production.
Attention does not appear to involve sustained heightened activation or inhibition of words throughout sequence production.
Findings support a model where attention acts transiently during speech articulation.