The Effects of Light Level and Signal-to-Noise Ratio on the Task-Evoked Pupil Response in a Speech-in-Noise Task.
Purpose: There is increasing interest in the measurement of cognitive effort during listening tasks, for both research and clinical purposes. Quantification of task-evoked pupil responses (TEPRs) is a psychophysiological method that can be used to study cognitive effort. However, light level during...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 67; no. 6; pp. 1964 - 1976 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Jun2024
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=177761748&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 177761748 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Jun2024 vid: 67 iid: 6 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 177761748 10.1044/2024_JSLHR-23-00627 ppf: 1964 ppct: 12 formats: fmt: @attributes: type: P size: 851KB tig: atl: The Effects of Light Level and Signal-to-Noise Ratio on the Task-Evoked Pupil Response in a Speech-in-Noise Task. aug: au: Baldock, Jennifer Kapadia, Sarosh van Steenbrugge, Willem McCarley, Jason affil: Flinders University, Adelaide, South Australia, Australia. Oregon State University, Corvallis. su: South Australia Task performance Analysis of variance Cognition Repeated measures design Statistical power analysis Light Noise Data analysis Listening Descriptive statistics Statistics Speech perception Pupil (Eye) Data analysis software sug: subj: Task performance Analysis of variance Cognition South Australia Repeated measures design Statistical power analysis Light Noise Data analysis Listening Descriptive statistics Statistics Speech perception Pupil (Eye) Data analysis software ab: Purpose: There is increasing interest in the measurement of cognitive effort during listening tasks, for both research and clinical purposes. Quantification of task-evoked pupil responses (TEPRs) is a psychophysiological method that can be used to study cognitive effort. However, light level during cognitively demanding listening tasks may affect TEPRs, complicating interpretation of listening-related changes. The objective of this study was to examine the effects of light level on TEPRs during effortful listening across a range of signal-to-noise ratios (SNRs). Method: Thirty-six adults without hearing loss were asked to repeat target sentences presented in background babble noise while their pupil diameter was recorded. Light level and SNRs were manipulated in a 4 × 4 repeated-measures design. Repeated-measures analyses of variance were used to measure the effects. Results: Peak and mean dilation were typically larger in more adverse SNR conditions (except for SNR −6 dB) and smaller in higher light levels. Differences in mean and peak dilation between SNR conditions were larger in dim light than in brighter light. Conclusions: Brighter light conditions make TEPRs less sensitive to variations in listening effort across levels of SNR. Therefore, light level must be considered and reported in detail to ensure sensitivity of TEPRs and for comparisons of findings across different studies. It is recommended that TEPR testing be conducted in relatively low light conditions, considering both background illumination and screen luminance. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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