Neural speech tracking benefit of lip movements predicts behavioral deterioration when the speaker’s mouth is occluded

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Апрель 18, 2023

Abstract Observing lip movements of a speaker is known to facilitate speech understanding, especially in challenging listening situations. Converging evidence from neuroscientific studies shows enhanced processing audiovisual stimuli. However, the interindividual variability this visual benefit and its consequences on behavior are unknown. Here, we analyzed source-localized magnetoencephalographic (MEG) responses normal-hearing participants with or without an additional distractor speaker. Using temporal response functions (TRFs), show that neural are, general, when challenging. After conducting crucial control for acoustics, effectively contribute higher tracking, particularly present. extent varied greatly among participants. Probing behavioral relevance, individuals who more movement information terms stronger drop performance increase perceived difficulty mouth occluded by surgical face mask. By contrast, no effect was found not occluded. We provide novel insights how tracking varies individuals. Furthermore, reveal relevance demonstrating negative absent. Our results also offer potential implications future objective assessments perception.

Язык: Английский

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Decreasing hearing ability does not lead to improved visual speech extraction as revealed in a neural speech tracking paradigm

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Март 14, 2024

Abstract The use of visual speech is thought to be especially important in situations where acoustics are unclear and individuals with hearing impairment. To investigate this a neural tracking paradigm, we measured MEG sixty-seven mid- old-age during audiovisual (AV), audio-only (A), visual-only (V) the context face masks. First, could extend previous findings by showing that not only young normal-hearing but also aging decreasing ability brain superior neurally acoustic spectrogram AV compared A presentations, multi-speaker situations. addition lip movements further increases benefit. Second, show lower levels affected more However, population, effect seems composite blocked distorted acoustics. Third, confirm findings, benefit varies strongly across individuals. We general individual predicts how much people engage difficult listening Interestingly, was correlated thresholds therefore does seem widely used compensatory strategy impaired.

Язык: Английский

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Hearing and cognitive decline in aging differentially impact neural tracking of context-supported versus random speech across linguistic timescales

PLoS ONE, Год журнала: 2024, Номер 19(12), С. e0313854 - e0313854

Опубликована: Дек. 6, 2024

Cognitive decline and hearing loss are common in older adults often co-occur while investigated separately, affecting the neural processing of speech. This study interaction between cognitive decline, loss, contextual cues speech processing. Participants aged 60 years were assessed for using Montreal Assessment ability a four-frequency pure tone average. They listened to in-house–designed matrix-style sentences that either provided supportive context or random, we recorded their electroencephalography. Neurophysiological responses analyzed through auditory evoked potentials tracking at different linguistic timescales (i.e., phrase, word, syllable phoneme rate) phase-locking values. The results showed was associated with decreased response accuracy recognition task. significantly impacted P2 component potentials, influenced word rates, but not phrase rates. Contextual enhanced rate. These findings suggest differentially affect mechanisms underlying processing, playing significant role enhancing rate tracking. emphasises importance considering both factors when studying people highlights need further research investigate interplay

Язык: Английский

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Interconnected declines in audition vision and cognition in healthy aging

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Дек. 28, 2024

Age-related sensory declines are unavoidable and closely linked to decreased visual, auditory, cognitive functions. However, the interrelations of these remain poorly understood. Despite extensive studies in each domain, shared age-related characteristics complex may not consistently manifest direct relationships at individual level. We investigated link between visual auditory perceptual healthy aging their relation function using six psychophysical three tasks. Eighty young older adults participated, revealing a general decline. Young outperformed all Critically, performance tasks significantly correlated with adults. This suggests domain-general decline perception, where vision related audition within individuals. Additionally, monotonically year by year. Working memory across both age groups modalities, further supporting hypothesis These findings highlight interconnected nature aging, providing foundation for future translational research focused on enhancing abilities promote ultimately improve quality life

Язык: Английский

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Visual speech cues enhance neural speech tracking in right auditory cluster leading to improvement in speech in noise comprehension in older adults with hearing impairment

Authorea (Authorea), Год журнала: 2023, Номер unknown

Опубликована: Март 1, 2023

Comprehending speech in noisy situations is difficult and suffers with aging, hearing loss, cognitive decline. Using visual cues improves perception comprehension of noise (SiN) older adults impairment. In the current study we investigated neurofunctional correlates (i.e., neural tracking speech) enhancement effect a naturalistic setting which impairment (N=67) listened to sentences babble audio-only audiovisual conditions performed an intelligibility task, while EEG was recorded. Behaviorally, found that improved presented particularly individuals high working memory capacity benefitted. Furthermore, accompanied by increased cortical envelope who were low performers condition < 70% correct) leading setting. Further, these auditory-only showed deficient right auditory topographical cluster, significantly when more bilateral processing speech. Overall, our results show have difficulties use improve performance reflected

Язык: Английский

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Validation of cost-efficient EEG experimental setup for neural tracking in an auditory attention task

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Дек. 19, 2023

When individuals listen to speech, their neural activity phase-locks the slow temporal rhythm, which is commonly referred as "neural tracking". The tracking mechanism allows for detection of an attended sound source in a multi-talker situation by decoding signals obtained electroencephalography (EEG), known auditory attention (AAD). Neural with AAD can be utilized objective measurement tool diverse clinical contexts, and it has potential applied neuro-steered hearing devices. To effectively utilize this technology, essential enhance accessibility EEG experimental setup analysis. aim study was develop cost-efficient system validate feasibility conducting task using offline real-time decoder model outside soundproof environment. We devised capable experiments OpenBCI Arduino board. Nine participants were recruited assess performance developed system, involved presenting competing speech experiment setting without soundproofing. As result, demonstrated average 90%, exhibited 78%. present demonstrates implementing cost-effective devices practical

Язык: Английский

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Reliability and generalizability of neural speech tracking in younger and older adults

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Июль 28, 2023

Abstract Neural tracking of continuous, spoken speech is increasingly used to examine how the brain encodes and considered a potential clinical biomarker, for example, age-related hearing loss. A biomarker must be reliable (intra-class correlation [ICC] >0.7), but reliability neural-speech unclear. In current study, younger older adults (different genders) listened stories in two separate sessions while electroencephalography (EEG) was recorded order investigate generalizability neural tracking. larger compared under clear background noise conditions, consistent with loss inhibition aged auditory system. For both age groups, lower than responses bursts (ICC >0.8), which we as benchmark maximum reliability. The moderate ∼0.5-0.75) tended when presented noise. also generalized moderately across different ∼0.5-0.6), appeared greatest audiobook-like by same person. This indicates that variety could possibly assessments. Overall, data provide results critical development processing, suggest further work needed increase neural-tracking response meet standards. Significance statement approaches are research impaired processing. needs reliable, study shows ∼0.5-0.75), although more variable adults, generalize especially

Язык: Английский

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A multidimensional characterization of the neurocognitive architecture underlying age-related temporal speech processing

NeuroImage, Год журнала: 2023, Номер 278, С. 120285 - 120285

Опубликована: Июль 20, 2023

Healthy aging is often associated with speech comprehension difficulties in everyday life situations despite a pure-tone hearing threshold the normative range. Drawing on this background, we used multidimensional approach to assess functional and structural neural correlates underlying age-related temporal processing while controlling for acuity. Accordingly, combined magnetic resonance imaging electroencephalography, collected behavioral data younger older adults completed phonetic categorization discrimination task consonant-vowel syllables varying along voice-onset time continuum. The results confirmed singularities which were reflected shift of boundary psychometric function, perceiving more syllable characterized by short as /ta/ compared adults. Furthermore, absence any between-group differences abilities, demonstrated longer N100/P200 latencies well increased P200 amplitudes time. Finally, also exhibited divergent anatomical gray matter infrastructure bilateral auditory-related frontal brain regions, manifested reduced cortical thickness surface area. Notably, but not adult cohort, area these two gross clusters correlated time, suggesting existence critical that crucial consistent mapping categories dimension. Taken together, our highlight multifaceted dimensions characteristics, pave way toward better understanding relationships between hearing, age.

Язык: Английский

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Contributions of Listening Effort and Intelligibility to Cortical Tracking of Speech in Adverse Listening Conditions

Опубликована: Май 29, 2023

Cortical tracking of speech is vital for segmentation and linked to intelligibility. However, there no clear consensus as whether reduced intelligibility leads a decrease or an increase in cortical tracking, warranting further investigation the factors influencing this relationship. One such factor listening effort, defined cognitive resources necessary comprehension, reported have strong negative correlation with Yet, studies examined relationship between intelligibility, speech. The aim present study was thus examine these quiet distinct adverse conditions. Forty-nine normal hearing adults listened sentences produced casually, presented two conditions: cafeteria noise reverberant Electrophysiological responses were registered electroencephalogram, effort estimated subjectively using self-reported scores objectively pupillometry. Results indicated varying impacts conditions on speech, depending preservation temporal envelope. more distorted envelope condition led higher reflected subjective scores, increased pupil diameter, stronger delta band. These findings suggest that measures addition those useful interpreting results. Moreover, reading phonological skills participants positively correlated condition, suggesting special role expert language processing noisy condition. Implications future research theories linking atypical disorders are discussed.

Язык: Английский

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Cortical and behavioural tracking of rhythm in music: Effects of pitch predictability, enjoyment, and expertise

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Окт. 16, 2023

Abstract The cortical tracking of stimulus features (such as the sound envelope) is a crucial neural requisite how we process continuous music. We here tested whether beat, typically related to rhythm processing, modulated by pitch predictability and other top-down factors. Participants listened tonal (high predictability) atonal (low music while undergoing EEG, analysed their acoustic envelope. Interestingly, envelope was stronger listening than music, likely reflecting listeners’ violated expectations. Envelope also with more expertise enjoyment. Furthermore, surprisal (using IDyOM) show that expectations for match those computed IDyOM model, higher (prediction errors) Behaviourally, measured participants’ ability tap along beat sequences in two experiments. In both experiments, finger-tapping performance better condition, indicating positive effect on behavioural processing. Cortical predicted tapping did conditions high low might impose different processing regimes. tracking, beyond musical predictability, well Taken together, our results various ways which factors impact

Язык: Английский

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