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Updated: Feb 25, 2026

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Sequence effects during speech perception reveal multi-accent processing costs.

Drew J McLaughlin^1,2, Jackson S Colvett^2,3, Julie M Bugg²

¹Basque Center on Cognition, Brain and Language, Paseo Mikeletegi, 69, 20009, Donostia-San Sebastián, Gipuzkoa, Spain.

Attention, Perception & Psychophysics

|February 23, 2026

Summary

This summary is machine-generated.

Switching between speakers with the same second language (L2) accent is less cognitively demanding than switching between different L2 accents. Global listening context may reduce L2 accent processing but not switching costs.

Keywords:

Accent Congruency sequence effect Pupillometry Speech processing

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Examining Online Syntactic Processing of Spoken Complex Sentences in Chinese Using Dual-Modal Interference Tasks

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Area of Science:

Cognitive Psychology
Auditory Perception
Psycholinguistics

Background:

Listening to different talkers incurs cognitive processing costs.
The impact of talker and accent switching in multi-accent environments is not well understood.
Investigating the role of recalibration mechanisms and global listening context is crucial.

Purpose of the Study:

To determine if talker and accent switching costs are driven by recalibration.
To examine if global listening context influences talker and accent switching costs.
To understand the cognitive load associated with processing second language (L2) accents.

Main Methods:

Two experiments were conducted to investigate talker and accent switching costs.
Experiment 1 compared switching costs between same-accent and different-accent L2 speakers.
Experiment 2 manipulated the global listening context to assess its effect on processing and switching costs.

Main Results:

Switching between speakers with the same L2 accent was less costly than switching between different L2 accents.
Perceptual distance between speakers' productions influences switching cost magnitude.
Global listening context reduced L2 accent processing demands but not talker and accent switching costs.

Conclusions:

Talker and accent switching are supported by a recalibration mechanism.
Perceptual similarity between talkers reduces cognitive load during switching.
Global cognitive resource allocation may not mitigate local switching costs in L2 listening.