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Int J Audiol. 2010 Dec;49(12):928-32. doi: 10.3109/14992027.2010.520036. Epub 2010 Nov 4.

Listening effort at signal-to-noise ratios that are typical of the school classroom.

Author information

1
Human Communication and Deafness Division, University of Manchester, UK. clare.howard@addenbrookes.nhs.uk

Abstract

OBJECTIVE:

The aim of the study was to measure listening effort at typical classroom signal-to-noise ratios (SNRs).

DESIGN:

Listening effort was measured using a dual task paradigm. Participants repeated monosyllabic words presented in a background of children's chatter (primary task) at SNRs that are considered typical of the school classroom environment (quiet, +4, 0, -4 dB) while simultaneously rehearsing sets of five digits for recall (secondary task). High listening effort requires greater cognitive resources and is associated with reduced performance on the secondary task.

STUDY SAMPLE:

Thirty one normal-hearing children (9-12 years).

RESULTS:

Performance was generally maintained on the listening task when multitasking; however, performance decreased on the secondary recall task, especially at the more negative SNRs.

CONCLUSIONS:

This demonstrates that considerable listening effort is required when listening at SNRs that are typical of the school classroom.

PMID:
21047295
DOI:
10.3109/14992027.2010.520036
[Indexed for MEDLINE]

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