The effects of task difficulty, background noise and noise reduction on recall
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The effects of task difficulty, background noise and noise reduction on recall. / Micula, Andreea; Ng, Elaine Hoi Ning; El-Azm, Fares; Ronnberg, Jerker.
In: International Journal of Audiology, Vol. 59, No. 10, 2020, p. 792-800.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The effects of task difficulty, background noise and noise reduction on recall
AU - Micula, Andreea
AU - Ng, Elaine Hoi Ning
AU - El-Azm, Fares
AU - Ronnberg, Jerker
PY - 2020
Y1 - 2020
N2 - Objective:In the present study, we investigated whether varying the task difficulty of the Sentence-Final Word Identification and Recall (SWIR) Test has an effect on the benefit of noise reduction, as well as whether task difficulty predictability affects recall. The relationship between working memory and recall was examined. Design:Task difficulty was manipulated by varying the list length with noise reduction on and off in competing speech and speech-shaped noise. Half of the participants were informed about list length in advance. Working memory capacity was measured using the Reading Span. Study sample:Thirty-two experienced hearing aid users with moderate sensorineural hearing loss. Results:Task difficulty did not affect the noise reduction benefit and task difficulty predictability did not affect recall. Participants may have employed a different recall strategy when task difficulty was unpredictable and noise reduction off. Reading Span scores positively correlated with the SWIR test. Noise reduction improved recall in competing speech. Conclusions:The SWIR test with varying list length is suitable for detecting the benefit of noise reduction. The correlation with working memory suggests that the SWIR test could be modified to be adaptive to individual cognitive capacity. The results on noise and noise reduction replicate previous findings.
AB - Objective:In the present study, we investigated whether varying the task difficulty of the Sentence-Final Word Identification and Recall (SWIR) Test has an effect on the benefit of noise reduction, as well as whether task difficulty predictability affects recall. The relationship between working memory and recall was examined. Design:Task difficulty was manipulated by varying the list length with noise reduction on and off in competing speech and speech-shaped noise. Half of the participants were informed about list length in advance. Working memory capacity was measured using the Reading Span. Study sample:Thirty-two experienced hearing aid users with moderate sensorineural hearing loss. Results:Task difficulty did not affect the noise reduction benefit and task difficulty predictability did not affect recall. Participants may have employed a different recall strategy when task difficulty was unpredictable and noise reduction off. Reading Span scores positively correlated with the SWIR test. Noise reduction improved recall in competing speech. Conclusions:The SWIR test with varying list length is suitable for detecting the benefit of noise reduction. The correlation with working memory suggests that the SWIR test could be modified to be adaptive to individual cognitive capacity. The results on noise and noise reduction replicate previous findings.
KW - Hearing aid benefit
KW - noise reduction
KW - background noise
KW - working memory
KW - individual cognitive differences
KW - free recall
KW - MONTREAL COGNITIVE ASSESSMENT
KW - IMMEDIATE FREE-RECALL
KW - HEARING-AID USERS
KW - WORKING-MEMORY
KW - LISTENING EFFORT
KW - LIST LENGTH
KW - SPEECH
KW - PREDICTABILITY
KW - SUSCEPTIBILITY
KW - RECOGNITION
U2 - 10.1080/14992027.2020.1771441
DO - 10.1080/14992027.2020.1771441
M3 - Journal article
VL - 59
SP - 792
EP - 800
JO - International Journal of Audiology
JF - International Journal of Audiology
SN - 1499-2027
IS - 10
ER -
ID: 347481196