Exploring Relevant Features for EEG-Based Investigation of Sound Perception in Naturalistic Soundscapes

eNeuro, Год журнала: 2025, Номер unknown, С. ENEURO.0287 - 24.2024

Опубликована: Янв. 3, 2025

A comprehensive analysis of everyday sound perception can be achieved using Electroencephalography (EEG) with the concurrent acquisition information about environment. While extensive research has been dedicated to speech perception, complexities auditory within environments, specifically types and key features extract, remain less explored. Our study aims systematically investigate relevance different feature categories: discrete sound-identity markers, general cognitive state information, acoustic representations, including onset, envelope, mel-spectrogram. Using continuous data analysis, we contrast in terms their predictive power for unseen thus distinct contributions explaining neural data. For this, analyse from a complex audio-visual motor task naturalistic soundscape. The results demonstrated that sets explain most variability were combination highly detailed description specific onsets. Furthermore, it showed established applied soundscapes. Crucially, outcome hinged on excluding periods devoid onsets case features. highlights importance comprehensively describe soundscape, nonacoustic aspects, fully understand dynamics situations. This approach serve as foundation future studies aiming natural settings. Significance Statement is an important step our broader endeavor, which life. Although conducted stationary setting, this provides foundational insights into necessary environmental obtain responses. We delved various features, labeling, goal refining models related perception. findings particularly highlight need thorough considerations across contexts, laboratory settings mobile EEG technologies, paves way investigations more advancing field neuroscience.

Язык: Английский

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Linear phase property of speech envelope tracking response in Heschl’s gyrus and superior temporal gyrus

Cortex, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Predictive coding and dimension-selective attention enhance the lateralization of spoken language processing

Neuroscience & Biobehavioral Reviews, Год журнала: 2025, Номер unknown, С. 106111 - 106111

Опубликована: Март 1, 2025

Hemispheric lateralization in speech and language processing exemplifies functional brain specialization. Seminal work patients with left hemisphere damage highlighted the left-hemispheric dominance functions. However, is not confined to hemisphere. Hence, some researchers associate auditory asymmetries: slow temporal fine spectral acoustic information preferentially processed right regions, while faster primarily handled by regions. Other scholars posit that relates more linguistic processing, particularly for speech-like stimuli. We argue these seemingly distinct accounts are interdependent. Linguistic analysis of relies on top-down processes, such as predictive coding dimension-selective attention, which enhance lateralized engaging left-lateralized sensorimotor networks. Our review highlights weaker simple sounds, stronger strongest meaningful speech. Evidence shows selective attention lateralization. illustrate processes rely networks provide insights into role processing.

Язык: Английский

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EEG Responses to Onset-edge and Steady-state Segments of Continuous Speech Under Selective Auditory Attention Modulation

Hearing Research, Год журнала: 2025, Номер 463, С. 109298 - 109298

Опубликована: Май 4, 2025

Язык: Английский

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Anatomically distinct cortical tracking of music and speech by slow (1–8Hz) and fast (70–120Hz) oscillatory activity

PLoS ONE, Год журнала: 2025, Номер 20(5), С. e0320519 - e0320519

Опубликована: Май 8, 2025

Music and speech encode hierarchically organized structural complexity at the service of human expressiveness communication. Previous research has shown that populations neurons in auditory regions track envelope acoustic signals within range slow fast oscillatory activity. However, extent to which cortical tracking is influenced by interplay between stimulus type, frequency band, brain anatomy remains an open question. In this study, we reanalyzed intracranial recordings from thirty subjects implanted with electrocorticography (ECoG) grids left cerebral hemisphere, drawn existing open-access ECoG database. Participants passively watched a movie where visual scenes were accompanied either music or stimuli. Cross-correlation activity signals, along density-based clustering analyses linear mixed-effects modeling, revealed both anatomically overlapping functionally distinct mapping effect as function type band. We observed widespread left-hemisphere Slow Frequency Band (SFB, band-passed filtered low-frequency signal 1–8Hz), near zero temporal lags. contrast, High (HFB, 70–120Hz signal) was higher during perception, more densely concentrated classical language processing areas, showed frontal-to-temporal gradient lag values not perception musical Our results highlight complex interaction region band shapes dynamics naturalistic signals.

Язык: Английский

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Exploring relevant Features for EEG-Based Investigation of Sound Perception in Naturalistic Soundscapes

Опубликована: Янв. 29, 2024

A comprehensive analysis of everyday sound perception can be achieved using Electroencephalography (EEG) with the concurrent acquisition information about environment.While extensive research has been dedicated to speech perception, complexities auditory within environments, specifically types and key features extract, remain less explored. Our study aims systematically investigate relevance different feature categories: discrete sound-identity markers, general cognitive state information, acoustic representations, including onset, envelope, mel-spectrogram. Using continuous data analysis, we contrast methods in terms their predictive power for unseen data, distinct contributions explaining neural data. We also evaluate results considering impact context, here density events. For this, analyse from a complex audio-visual motor task naturalistic soundscape. The demonstrated that model prediction is increased more acoustically detailed conjunction description identity Crucially, outcome hinged on excluding periods devoid onsets case features. Furthermore, showed event was crucial when onsets. highlights importance soundscape, non-acoustic aspects, fully understand dynamics situations. This approach serve as foundation future studies aiming natural settings.

Язык: Английский

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Language specificity in cortical tracking of speech rhythm at the mora, syllable, and foot levels

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Авг. 5, 2022

Abstract Recent research shows that adults’ neural oscillations track the rhythm of speech signal. However, extent to which this tracking is driven by acoustics signal, or language-specific processing remains unknown. Here adult native listeners three rhythmically different languages (English, French, Japanese) were compared on their cortical envelopes synthesized in languages, allowed for coding at each language’s dominant rhythmic unit, respectively foot (2.5 Hz), syllable (5 mora (10 Hz) level. The language groups also tested with a sequence non-native language, Polish, and non-speech vocoded equivalent, investigate possible differential speech/nonspeech processing. results first showed was most prominent 5 Hz (syllable rate) all groups, but French enhanced English Japanese groups. Second, across there no differences responses versus rate), better than 10 ( not rate). Together these provide evidence both language-general influences tracking.

Язык: Английский

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Acoustic-level and language-specific processing of native and non-native phonological sequence onsets in the low gamma and theta-frequency bands

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Янв. 10, 2022

Abstract Acoustic structures associated with native-language phonological sequences are enhanced within auditory pathways for perception, although the underlying mechanisms not well understood. To elucidate processes that facilitate time–frequency (T–F) analyses of EEGs obtained from native speakers English and Polish were conducted. Participants listened to same different nonword pairs counterbalanced attend passive conditions. Nonwords contained onsets /pt/, /pət/, /st/, /sət/ occur in both languages exception which never occurs language word onset. Measures spectral power inter-trial phase locking (ITPL) low gamma (LG) theta-frequency bands analyzed two bilateral, source-level channels, created through source localization modeling. Results revealed significantly larger LG listeners unfamiliar /pt/ right hemisphere at early cortical stages, during condition. Further, ITPL values distinctive responses high low-theta acoustic characteristics onsets, modulated by exposure. These findings, language-specific processing acoustic-level theta, support view multi scale temporal facilitates speech perception.

Язык: Английский

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“Um…, It’s Really Difficult to… Um… Speak Fluently”: Neural Tracking of Spontaneous Speech

Neurobiology of Language, Год журнала: 2023, Номер 4(3), С. 435 - 454

Опубликована: Янв. 1, 2023

Abstract Spontaneous real-life speech is imperfect in many ways. It contains disfluencies and ill-formed utterances has a highly variable rate. When listening to spontaneous speech, the brain needs contend with these features order extract speaker’s meaning. Here, we studied how neural response affected by four specific factors that are prevalent colloquial speech: (1) presence of fillers, (2) need detect syntactic boundaries disfluent (3) variability Neural activity was recorded (using electroencephalography) from individuals as they listened an unscripted, narrative, which analyzed time-resolved fashion identify fillers boundaries. considering speech-tracking analysis, estimates temporal function (TRF) describe relationship between stimulus it generates, found TRF all them. This observed for lexical words but not had earlier onset opening vs. closing clause clauses slower rates. These findings broaden ongoing efforts understand processing under increasingly realistic conditions. They highlight importance nature spoken language, linking past research on linguistically well-formed meticulously controlled type actually deals daily basis.

Язык: Английский

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Neural tracking of continuous acoustics: properties, speech‐specificity and open questions

European Journal of Neuroscience, Год журнала: 2023, Номер 59(3), С. 394 - 414

Опубликована: Дек. 27, 2023

Abstract Human speech is a particularly relevant acoustic stimulus for our species, due to its role of information transmission during communication. Speech inherently dynamic signal, and recent line research focused on neural activity following the temporal structure speech. We review findings that characterise dynamics in processing continuous acoustics allow us compare these with aspects human highlight properties constraints both have, suggesting auditory systems are optimised process then discuss speech‐specificity their potential mechanistic origins summarise open questions field.

Язык: Английский

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