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A Glimpse of Memory Through the Eyes: Pupillary Responses Measured During Encoding Reflect the Likelihood of Subsequent Memory Recall in an Auditory Free Recall Test
Linköping University, Department of Behavioural Sciences and Learning, Disability Research Division. Linköping University, Faculty of Arts and Sciences. (Linnaeus Centre HEAD)
Linköping University, Department of Behavioural Sciences and Learning, Disability Research Division. Linköping University, Faculty of Arts and Sciences. (Linnaeus Centre HEAD)ORCID iD: 0000-0001-7311-9959
Vrije Univ Amsterdam, Netherlands; Eriksholm Res Ctr, Denmark.
Oticon AS, Denmark.
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2022 (English)In: Trends in Hearing, ISSN 2331-2165, Vol. 26, article id 23312165221130581Article in journal (Refereed) Published
Abstract [en]

The aim of the current study was to investigate whether task-evoked pupillary responses measured during encoding, individual working memory capacity and noise reduction in hearing aids were associated with the likelihood of subsequently recalling an item in an auditory free recall test combined with pupillometry. Participants with mild to moderately severe symmetrical sensorineural hearing loss (n = 21) were included. The Sentence-final Word Identification and Recall (SWIR) test was administered in a background noise composed of sixteen talkers with noise reduction in hearing aids activated and deactivated. The task-evoked peak pupil dilation (PPD) was measured. The Reading Span (RS) test was used as a measure of individual working memory capacity. Larger PPD at a single trial level was significantly associated with higher likelihood of subsequently recalling a word, presumably reflecting the intensity of attention devoted during encoding. There was no clear evidence of a significant relationship between working memory capacity and subsequent memory recall, which may be attributed to the SWIR test and RS test being administered in different modalities, as well as differences in task characteristics. Noise reduction did not have a significant effect on subsequent memory recall. This may be due to the background noise not having a detrimental effect on attentional processing at the favorable signal-to-noise ratio levels at which the test was conducted.

Place, publisher, year, edition, pages
Sage Publications, 2022. Vol. 26, article id 23312165221130581
Keywords [en]
free recall; subsequent memory recall; pupillary responses; working memory
National Category
Otorhinolaryngology
Identifiers
URN: urn:nbn:se:liu:diva-190128DOI: 10.1177/23312165221130581ISI: 000879381600001PubMedID: 36305085OAI: oai:DiVA.org:liu-190128DiVA, id: diva2:1713052
Note

Funding Agencies|William Demant Foundation

Available from: 2022-11-23 Created: 2022-11-23 Last updated: 2022-12-15

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Micula, AndreeaRönnberg, JerkerNg, Elaine Hoi Ning
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