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Related Experiment Video

Updated: Jun 23, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Speech perception engages a general timer: evidence from a divided attention word identification task.

Laurence Casini¹, Boris Burle, Noël Nguyen

¹Aix-Marseille Université, CNRS, Laboratoire de Neurobiologie de la Cognition, Marseille, France. Laurence.Casini@univ-provence.fr

|May 22, 2009

Summary

This summary is machine-generated.

Divided attention shortens perceived vowel duration in French words. This suggests speech timing relies on a central timer, impacting word perception.

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Last Updated: Jun 23, 2026

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Area of Science:

Cognitive psychology
Speech perception
Psycholinguistics

Background:

Temporal aspects of speech are crucial for word identification.
Attention significantly influences cognitive processes, including time perception.

Purpose of the Study:

To investigate the impact of divided attention on vowel duration perception.
To determine if speech timing relies on a general-purpose timing mechanism.

Main Methods:

A French word identification task was employed.
Participants performed the task under conditions of single-task focus versus divided attention.

Main Results:

Vowels were perceived as significantly shorter when attention was divided.
This temporal underestimation was observed in the French word identification task.

Conclusions:

Vowel duration perception is susceptible to attentional load.
Findings support the existence of a central, general-purpose timer for explicit time estimation in speech.