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Keur-Huizinga L, Kramer SE, de Geus EJC, Zekveld AA. A Multimodal Approach to Measuring Listening Effort: A Systematic Review on the Effects of Auditory Task Demand on Physiological Measures and Their Relationship. Ear Hear 2024; 45:1089-1106. [PMID: 38880960 PMCID: PMC11325958 DOI: 10.1097/aud.0000000000001508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 03/18/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVES Listening effort involves the mental effort required to perceive an auditory stimulus, for example in noisy environments. Prolonged increased listening effort, for example due to impaired hearing ability, may increase risk of health complications. It is therefore important to identify valid and sensitive measures of listening effort. Physiological measures have been shown to be sensitive to auditory task demand manipulations and are considered to reflect changes in listening effort. Such measures include pupil dilation, alpha power, skin conductance level, and heart rate variability. The aim of the current systematic review was to provide an overview of studies to listening effort that used multiple physiological measures. The two main questions were: (1) what is the effect of changes in auditory task demand on simultaneously acquired physiological measures from various modalities? and (2) what is the relationship between the responses in these physiological measures? DESIGN Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, relevant articles were sought in PubMed, PsycInfo, and Web of Science and by examining the references of included articles. Search iterations with different combinations of psychophysiological measures were performed in conjunction with listening effort-related search terms. Quality was assessed using the Appraisal Tool for Cross-Sectional Studies. RESULTS A total of 297 articles were identified from three databases, of which 27 were included. One additional article was identified from reference lists. Of the total 28 included articles, 16 included an analysis regarding the relationship between the physiological measures. The overall quality of the included studies was reasonable. CONCLUSIONS The included studies showed that most of the physiological measures either show no effect to auditory task demand manipulations or a consistent effect in the expected direction. For example, pupil dilation increased, pre-ejection period decreased, and skin conductance level increased with increasing auditory task demand. Most of the relationships between the responses of these physiological measures were nonsignificant or weak. The physiological measures varied in their sensitivity to auditory task demand manipulations. One of the identified knowledge gaps was that the included studies mostly used tasks with high-performance levels, resulting in an underrepresentation of the physiological changes at lower performance levels. This makes it difficult to capture how the physiological responses behave across the full psychometric curve. Our results support the Framework for Understanding Effortful Listening and the need for a multimodal approach to listening effort. We furthermore discuss focus points for future studies.
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Affiliation(s)
- Laura Keur-Huizinga
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology—Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Sophia E. Kramer
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology—Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Eco J. C. de Geus
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Adriana A. Zekveld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology—Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
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Keur-Huizinga L, Huizinga NA, Zekveld AA, Versfeld NJ, van de Ven SRB, van Dijk WAJ, de Geus EJC, Kramer SE. Effects of hearing acuity on psychophysiological responses to effortful speech perception. Hear Res 2024; 448:109031. [PMID: 38761554 DOI: 10.1016/j.heares.2024.109031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/02/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
In recent studies, psychophysiological measures have been used as markers of listening effort, but there is limited research on the effect of hearing loss on such measures. The aim of the current study was to investigate the effect of hearing acuity on physiological responses and subjective measures acquired during different levels of listening demand, and to investigate the relationship between these measures. A total of 125 participants (37 males and 88 females, age range 37-72 years, pure-tone average hearing thresholds at the best ear between -5.0 to 68.8 dB HL and asymmetry between ears between 0.0 and 87.5 dB) completed a listening task. A speech reception threshold (SRT) test was used with target sentences spoken by a female voice masked by male speech. Listening demand was manipulated using three levels of intelligibility: 20 % correct speech recognition, 50 %, and 80 % (IL20 %/IL50 %/IL80 %, respectively). During the task, peak pupil dilation (PPD), heart rate (HR), pre-ejection period (PEP), respiratory sinus arrhythmia (RSA), and skin conductance level (SCL) were measured. For each condition, subjective ratings of effort, performance, difficulty, and tendency to give up were also collected. Linear mixed effects models tested the effect of intelligibility level, hearing acuity, hearing asymmetry, and tinnitus complaints on the physiological reactivity (compared to baseline) and subjective measures. PPD and PEP reactivity showed a non-monotonic relationship with intelligibility level, but no such effects were found for HR, RSA, or SCL reactivity. Participants with worse hearing acuity had lower PPD at all intelligibility levels and showed lower PEP baseline levels. Additionally, PPD and SCL reactivity were lower for participants who reported suffering from tinnitus complaints. For IL80 %, but not IL50 % or IL20 %, participants with worse hearing acuity rated their listening effort to be relatively high compared to participants with better hearing. The reactivity of the different physiological measures were not or only weakly correlated with each other. Together, the results suggest that hearing acuity may be associated with altered sympathetic nervous system (re)activity. Research using psychophysiological measures as markers of listening effort to study the effect of hearing acuity on such measures are best served by the use of the PPD and PEP.
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Affiliation(s)
- Laura Keur-Huizinga
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands; Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
| | - Nicole A Huizinga
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands; Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Adriana A Zekveld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Niek J Versfeld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Sjors R B van de Ven
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Wieke A J van Dijk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Eco J C de Geus
- Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Sophia E Kramer
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, De Boelelaan 1117, Amsterdam, the Netherlands
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Plain B, Pielage H, Kramer SE, Richter M, Saunders GH, Versfeld NJ, Zekveld AA, Bhuiyan TA. Combining Cardiovascular and Pupil Features Using k-Nearest Neighbor Classifiers to Assess Task Demand, Social Context, and Sentence Accuracy During Listening. Trends Hear 2024; 28:23312165241232551. [PMID: 38549351 PMCID: PMC10981225 DOI: 10.1177/23312165241232551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 01/04/2024] [Accepted: 01/25/2024] [Indexed: 04/01/2024] Open
Abstract
In daily life, both acoustic factors and social context can affect listening effort investment. In laboratory settings, information about listening effort has been deduced from pupil and cardiovascular responses independently. The extent to which these measures can jointly predict listening-related factors is unknown. Here we combined pupil and cardiovascular features to predict acoustic and contextual aspects of speech perception. Data were collected from 29 adults (mean = 64.6 years, SD = 9.2) with hearing loss. Participants performed a speech perception task at two individualized signal-to-noise ratios (corresponding to 50% and 80% of sentences correct) and in two social contexts (the presence and absence of two observers). Seven features were extracted per trial: baseline pupil size, peak pupil dilation, mean pupil dilation, interbeat interval, blood volume pulse amplitude, pre-ejection period and pulse arrival time. These features were used to train k-nearest neighbor classifiers to predict task demand, social context and sentence accuracy. The k-fold cross validation on the group-level data revealed above-chance classification accuracies: task demand, 64.4%; social context, 78.3%; and sentence accuracy, 55.1%. However, classification accuracies diminished when the classifiers were trained and tested on data from different participants. Individually trained classifiers (one per participant) performed better than group-level classifiers: 71.7% (SD = 10.2) for task demand, 88.0% (SD = 7.5) for social context, and 60.0% (SD = 13.1) for sentence accuracy. We demonstrated that classifiers trained on group-level physiological data to predict aspects of speech perception generalized poorly to novel participants. Individually calibrated classifiers hold more promise for future applications.
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Affiliation(s)
- Bethany Plain
- Otolaryngology Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Eriksholm Research Centre, Snekkersten, Denmark
| | - Hidde Pielage
- Otolaryngology Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Eriksholm Research Centre, Snekkersten, Denmark
| | - Sophia E. Kramer
- Otolaryngology Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Michael Richter
- School of Psychology, Liverpool John Moores University, Liverpool, UK
| | - Gabrielle H. Saunders
- Manchester Centre for Audiology and Deafness (ManCAD), University of Manchester, Manchester, UK
| | - Niek J. Versfeld
- Otolaryngology Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Adriana A. Zekveld
- Otolaryngology Head and Neck Surgery, Ear & Hearing, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
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Zekveld AA, Pielage H, Versfeld NJ, Kramer SE. The Influence of Hearing Loss on the Pupil Response to Degraded Speech. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:4083-4099. [PMID: 37699194 DOI: 10.1044/2023_jslhr-23-00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
PURPOSE Current evidence regarding the influence of hearing loss on the pupil response elicited by speech perception is inconsistent. This might be partially due to confounding effects of age. This study aimed to compare pupil responses in age-matched groups of normal-hearing (NH) and hard of hearing (HH) listeners during listening to speech. METHOD We tested the baseline pupil size and mean and peak pupil dilation response of 17 NH participants (Mage = 46 years; age range: 20-62 years) and 17 HH participants (Mage = 45 years; age range: 20-63 years) who were pairwise matched on age and educational level. Participants performed three speech perception tasks at a 50% intelligibility level: noise-vocoded speech and speech masked with either stationary noise or interfering speech. They also listened to speech presented in quiet. RESULTS Hearing loss was associated with poorer speech perception, except for noise-vocoded speech. In contrast to NH participants, performance of HH participants did not improve across trials for the interfering speech condition, and it decreased for speech in stationary noise. HH participants had a smaller mean pupil dilation in degraded speech conditions compared to NH participants, but not for speech in quiet. They also had a steeper decline in the baseline pupil size across trials. The baseline pupil size was smaller for noise-vocoded speech as compared to the other conditions. The normalized data showed an additional group effect on the baseline pupil response. CONCLUSIONS Hearing loss is associated with a smaller pupil response and steeper decline in baseline pupil size during the perception of degraded speech. This suggests difficulties of the HH participants to sustain their effort investment and performance across the test session.
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Affiliation(s)
- Adriana A Zekveld
- Ear & Hearing Section, Otolaryngology-Head and Neck Surgery, Amsterdam UMC, VU University medical center Amsterdam, the Netherlands
- Amsterdam Public Health Research Institute, the Netherlands
| | - Hidde Pielage
- Ear & Hearing Section, Otolaryngology-Head and Neck Surgery, Amsterdam UMC, VU University medical center Amsterdam, the Netherlands
- Amsterdam Public Health Research Institute, the Netherlands
| | - Niek J Versfeld
- Ear & Hearing Section, Otolaryngology-Head and Neck Surgery, Amsterdam UMC, VU University medical center Amsterdam, the Netherlands
- Amsterdam Public Health Research Institute, the Netherlands
| | - Sophia E Kramer
- Ear & Hearing Section, Otolaryngology-Head and Neck Surgery, Amsterdam UMC, VU University medical center Amsterdam, the Netherlands
- Amsterdam Public Health Research Institute, the Netherlands
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Pielage H, Plain BJ, Saunders GH, Versfeld NJ, Lunner T, Kramer SE, Zekveld AA. Copresence Was Found to Be Related to Some Pupil Measures in Persons With Hearing Loss While They Performed a Speech-in-Noise Task. Ear Hear 2023; 44:1190-1201. [PMID: 37012623 PMCID: PMC10426789 DOI: 10.1097/aud.0000000000001361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/07/2023] [Indexed: 04/05/2023]
Abstract
OBJECTIVES To assess if a manipulation of copresence was related to speech-in-noise task performance, arousal, and effort of persons with hearing loss. Task-related arousal and effort were measured by means of pupillometry. DESIGN Twenty-nine participants (mean age: 64.6 years) with hearing loss (4-frequency pure-tone average [4F-PTA] of 50.2 dB HL [SD = 8.9 dB] in the right ear and 51.3 dB HL [SD = 8.7 dB] in the left ear; averaged across 0.5, 1, 2, and 4 kHz) listened to and repeated spoken Danish sentences that were masked by four streams of continuous speech. Participants were presented with blocks of 20 sentences, during which copresence was manipulated by having participants do the task either alone or accompanied by two observers who were recruited from a similar age group. The task was presented at two difficulty levels, which was accomplished by fixing the signal-to-noise ratio of the speech and masker to match the thresholds at which participants were estimated to correctly repeat 50% (difficult) or 80% (easy) of the sentences in a block. Performance was assessed based on whether or not sentences were repeated correctly. Measures of pupil size (baseline pupil size [BPS], peak pupil dilation [PPD], and mean pupil dilation [MPD]) were used to index arousal and effort. Participants also completed ratings of subjective effort and stress after each block of sentences and a self-efficacy for listening-questionnaire. RESULTS Task performance was not associated with copresence, but was found to be related to 4F-PTA. An increase in BPS was found for copresence conditions, compared to alone conditions. Furthermore, a post-hoc exploratory analysis revealed that the copresence conditions were associated with a significantly larger pupil size in the second half of the task-evoked pupil response (TEPR). No change in PPD or MPD did was detected between copresence and alone conditions. Self-efficacy, 4F-PTA, and age were not found to be related to the pupil data. Subjective ratings were sensitive to task difficulty but not copresence. CONCLUSION Copresence was not found to be related to speech-in-noise performance, PPD, or MPD in persons with HL but was associated with an increase in arousal (as indicated by a larger BPS). This could be related to premobilization of effort and/or discomfort in response to the observers' presence. Furthermore, an exploratory analysis of the pupil data showed that copresence was associated with greater pupil dilations in the second half of the TEPR. This may indicate that participants invested more effort during the speech-in-noise task while in the presence of the observers, but that this increase in effort may not necessarily have been related to listening itself. Instead, other speech-in-noise task-related processes, such as preparing to respond, could have been influenced by copresence.
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Affiliation(s)
- Hidde Pielage
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, section Ear & Hearing, Amsterdam, the Netherlands
- Eriksholm Research Centre, Snekkersten, Denmark
| | - Bethany J. Plain
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, section Ear & Hearing, Amsterdam, the Netherlands
- Eriksholm Research Centre, Snekkersten, Denmark
| | - Gabrielle H. Saunders
- Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, United Kingdom
| | - Niek J. Versfeld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, section Ear & Hearing, Amsterdam, the Netherlands
| | | | - Sophia E. Kramer
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, section Ear & Hearing, Amsterdam, the Netherlands
| | - Adriana A. Zekveld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Otolaryngology-Head and Neck Surgery, section Ear & Hearing, Amsterdam, the Netherlands
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Richter M, Buhiyan T, Bramsløw L, Innes-Brown H, Fiedler L, Hadley LV, Naylor G, Saunders GH, Wendt D, Whitmer WM, Zekveld AA, Kramer SE. Combining Multiple Psychophysiological Measures of Listening Effort: Challenges and Recommendations. Semin Hear 2023; 44:95-105. [PMID: 37122882 PMCID: PMC10147512 DOI: 10.1055/s-0043-1767669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
About one-third of all recently published studies on listening effort have used at least one physiological measure, providing evidence of the popularity of such measures in listening effort research. However, the specific measures employed, as well as the rationales used to justify their inclusion, vary greatly between studies, leading to a literature that is fragmented and difficult to integrate. A unified approach that assesses multiple psychophysiological measures justified by a single rationale would be preferable because it would advance our understanding of listening effort. However, such an approach comes with a number of challenges, including the need to develop a clear definition of listening effort that links to specific physiological measures, customized equipment that enables the simultaneous assessment of multiple measures, awareness of problems caused by the different timescales on which the measures operate, and statistical approaches that minimize the risk of type-I error inflation. This article discusses in detail the various obstacles for combining multiple physiological measures in listening effort research and provides recommendations on how to overcome them.
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Affiliation(s)
- Michael Richter
- School of Psychology, Liverpool John Moores University, Liverpool, United Kingdom
| | | | - Lars Bramsløw
- Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark
| | - Hamish Innes-Brown
- Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark
- Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Lorenz Fiedler
- Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark
| | - Lauren V. Hadley
- Hearing Sciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Graham Naylor
- Hearing Sciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Gabrielle H. Saunders
- Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, United Kingdom
| | - Dorothea Wendt
- Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark
- Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - William M. Whitmer
- Hearing Sciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Adriana A. Zekveld
- Section of Ear and Hearing, Department of Otolaryngology – Head and Neck Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Sophia E. Kramer
- Section of Ear and Hearing, Department of Otolaryngology – Head and Neck Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
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Grenzebach J, Romanus E. Quantifying the Effect of Noise on Cognitive Processes: A Review of Psychophysiological Correlates of Workload. Noise Health 2022; 24:199-214. [PMID: 36537445 PMCID: PMC10088430 DOI: 10.4103/nah.nah_34_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Noise is present in most work environments, including emissions from machines and devices, irrelevant speech from colleagues, and traffic noise. Although it is generally accepted that noise below the permissible exposure limits does not pose a considerable risk for auditory effects like hearing impairments. Yet, noise can have a direct adverse effect on cognitive performance (non-auditory effects like workload or stress). Under certain circumstances, the observable performance for a task carried out in silence compared to noisy surroundings may not differ. One possible explanation for this phenomenon needs further investigation: individuals may invest additional cognitive resources to overcome the distraction from irrelevant auditory stimulation. Recent developments in measurements of psychophysiological correlates and analysis methods of load-related parameters can shed light on this complex interaction. These objective measurements complement subjective self-report of perceived effort by quantifying unnoticed noise-related cognitive workload. In this review, literature databases were searched for peer-reviewed journal articles that deal with an at least partially irrelevant "auditory stimulation" during an ongoing "cognitive task" that is accompanied by "psychophysiological correlates" to quantify the "momentary workload." The spectrum of assessed types of "auditory stimulations" extended from speech stimuli (varying intelligibility), oddball sounds (repeating short tone sequences), and auditory stressors (white noise, task-irrelevant real-life sounds). The type of "auditory stimulation" was related (speech stimuli) or unrelated (oddball, auditory stressor) to the type of primary "cognitive task." The types of "cognitive tasks" include speech-related tasks, fundamental psychological assessment tasks, and real-world/simulated tasks. The "psychophysiological correlates" include pupillometry and eye-tracking, recordings of brain activity (hemodynamic, potentials), cardiovascular markers, skin conductance, endocrinological markers, and behavioral markers. The prevention of negative effects on health by unexpected stressful soundscapes during mental work starts with the continuous estimation of cognitive workload triggered by auditory noise. This review gives a comprehensive overview of methods that were tested for their sensitivity as markers of workload in various auditory settings during cognitive processing.
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Carolan PJ, Heinrich A, Munro KJ, Millman RE. Quantifying the Effects of Motivation on Listening Effort: A Systematic Review and Meta-Analysis. Trends Hear 2022; 26:23312165211059982. [PMID: 35077257 PMCID: PMC8793127 DOI: 10.1177/23312165211059982] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 10/11/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Motivation influences the amount of listening effort (LE) exerted or experienced under challenging conditions, such as in high-noise environments. This systematic review and meta-analysis is the first to quantify the effects of motivation on LE. The review was pre-registered in PROSPERO, and performed in accordance with PRISMA guidelines. Eligible studies examined the influence of motivation or individual traits (related to motivation) on LE in adults. Motivational factors, coded as independent variables, included financial reward, evaluative threat, perceived competence, feedback, and individual traits. LE outcomes were categorized as subjective, behavioral, or physiological. The quality of evidence was assessed using an adaptation of the Cochrane Collaboration Risk of Bias Tool. Nested random-effects meta-analyses were performed to quantify and compare the influence of motivational factors across LE outcomes. After assessing 3,532 records, 48 studies met the inclusion criteria and 43 were included in the meta-analyses. Risk of bias was high, for example, many studies lacked sample size justification. Motivational factors had a small-to-medium effect (mean Cohen's d = 0.34, range: 0.11-0.72) on LE. When LE outcomes were considered collectively, an external manipulation of motivation (perceived competence) produced a larger mean effect size compared with individual traits. Some combinations of motivational factors and LE outcomes produced more robust effects than others, for example, evaluative threat and subjective LE outcomes. Although wide prediction intervals and high risk of bias mean that significant positive effects cannot be guaranteed, these findings provide useful guidance on the selection of motivational factors and LE outcomes for future research.
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Affiliation(s)
- Peter J Carolan
- Manchester Centre for Audiology and Deafness, School of Health Sciences, The University of Manchester, Manchester, UK
- Manchester Academic Health Science Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Antje Heinrich
- Manchester Centre for Audiology and Deafness, School of Health Sciences, The University of Manchester, Manchester, UK
- Manchester Academic Health Science Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Kevin J Munro
- Manchester Centre for Audiology and Deafness, School of Health Sciences, The University of Manchester, Manchester, UK
- Manchester Academic Health Science Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Rebecca E Millman
- Manchester Centre for Audiology and Deafness, School of Health Sciences, The University of Manchester, Manchester, UK
- Manchester Academic Health Science Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
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Bianco R, Mills G, de Kerangal M, Rosen S, Chait M. Reward Enhances Online Participants' Engagement With a Demanding Auditory Task. Trends Hear 2021; 25:23312165211025941. [PMID: 34170748 PMCID: PMC8246484 DOI: 10.1177/23312165211025941] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/06/2021] [Accepted: 05/28/2021] [Indexed: 11/20/2022] Open
Abstract
Online recruitment platforms are increasingly used for experimental research. Crowdsourcing is associated with numerous benefits but also notable constraints, including lack of control over participants' environment and engagement. In the context of auditory experiments, these limitations may be particularly detrimental to threshold-based tasks that require effortful listening. Here, we ask whether incorporating a performance-based monetary bonus improves speech reception performance of online participants. In two experiments, participants performed an adaptive matrix-type speech-in-noise task (where listeners select two key words out of closed sets). In Experiment 1, our results revealed worse performance in online (N = 49) compared with in-lab (N = 81) groups. Specifically, relative to the in-lab cohort, significantly fewer participants in the online group achieved very low thresholds. In Experiment 2 (N = 200), we show that a monetary reward improved listeners' thresholds to levels similar to those observed in the lab setting. Overall, the results suggest that providing a small performance-based bonus increases participants' task engagement, facilitating a more accurate estimation of auditory ability under challenging listening conditions.
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Affiliation(s)
- Roberta Bianco
- UCL Ear Institute, University College London, London, United Kingdom
| | - Gordon Mills
- UCL Ear Institute, University College London, London, United Kingdom
- National Institute for Health Research UCL Hospitals Biomedical Research Centre, Deafness and Hearing Problems Theme, London, United Kingdom
| | | | - Stuart Rosen
- UCL Speech, Hearing and Phonetic Sciences, University College London, London, United Kingdom
| | - Maria Chait
- UCL Ear Institute, University College London, London, United Kingdom
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