Left Superior Temporal Gyrus Is Coupled to Attended Speech in a Cocktail-Party Auditory Scene

Ghinst, Marc Vander; Bourguignon, Mathieu; Beeck, Marc Op De; Wens, Vincent; Marty, Brice; Hassid, Sergio; Choufani, Georges; Jousmäki, Veikko; Hari, Riitta; Bogaert, Patrick Van; Goldman, Serge; Tiège, Xavier De

doi:10.1523/jneurosci.1730-15.2016

Cited by 108 publications

(131 citation statements)

References 54 publications

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“…As previously reported (Ahissar et al, 2001;Bourguignon et al, 2013a;Luo and Poeppel, 2007;Molinaro et al, 2016;Peelle et al, 2013;Vander Ghinst et al, 2016), MEG signals were coherent with speech temporal envelope at delta and theta frequencies (see Fig. 5).…”

Section: Location Comparison In Genuine Brain-speech Entrainment Datasupporting

confidence: 87%

“…When listening to speech, human auditory cortical activity in the delta and theta bands entrain to speech rhythmicity, that is the brainspeech entrainment phenomenon (Ahissar et al, 2001;Bourguignon et al, 2013a;Luo and Poeppel, 2007;Molinaro et al, 2016;Peelle et al, 2013;Vander Ghinst et al, 2016). The strength of brain-speech entrainment is enhanced when listening to intelligible speech compared to non-intelligible speech (Ahissar et al, 2001;Luo and Poeppel, 2007;Peelle et al, 2013).…”

Section: Brain-speech Entrainment Resultsmentioning

confidence: 99%

“…Procedure to generate simulated maps of coherence with a reference signal Our simulations of coherence with a reference signal were designed to tightly match real brain-speech entrainment data in which MEG signals from auditory regions of a listener are coherent with the temporal envelope of heard speech at~0.5 Hz and 4-8 Hz (Ahissar et al, 2001;Bourguignon et al, 2013a;Luo and Poeppel, 2007;Molinaro et al, 2016;Peelle et al, 2013;Vander Ghinst et al, 2016). Accordingly, we simulated coherence at 0.5 Hz between MEG data and a fixed reference signal taken as the speech envelope of a 5-min audio recording of a person reading a continuous text.…”

Section: Simulationsmentioning

confidence: 99%

“…Group 1 consisted of seventeen healthy native Spanish speakers (mean 24 years, range 20-32 years; 9 females and 8 males). Group 2 consisted of twenty healthy native French speakers (mean 30 years, range 23-40 years; 10 females and 10 males) previously reported in Vander Ghinst et al (2016). All subjects were right-handed according to self-report.…”

Section: Subjectsmentioning

confidence: 99%

“…In that method, we use a bootstrap procedure (Efron, 1979) to estimate a sample distribution of coordinates of maxima in the to-be-compared conditions, and we test the null hypothesis that the distance is zero. The sensitivity and specificity of this test are evaluated on simulated data and on real brain-speech entrainment data wherein brain activity is coherent with heard speech in a natural speech listening task (Ahissar et al, 2001;Bourguignon et al, 2013a;Luo and Poeppel, 2007;Molinaro et al, 2016;Peelle et al, 2013;Vander Ghinst et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Contrasting functional imaging parametric maps: The mislocation problem and alternative solutions

2018

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A B S T R A C TIn the field of neuroimaging, researchers often resort to contrasting parametric maps to identify differences between conditions or populations. Unfortunately, contrast patterns mix effects related to amplitude and location differences and tend to peak away from sources of genuine brain activity to an extent that scales with the smoothness of the maps. Here, we illustrate this mislocation problem on source maps reconstructed from magnetoencephalographic recordings and propose a novel, dedicated location-comparison method. In realistic simulations, contrast mislocation was on average~10 mm when genuine sources were placed at the same location, and was still above 5 mm when sources were 20 mm apart. The dedicated location-comparison method achieved a sensitivity of~90% when inter-source distance was 12 mm. Its benefit is also illustrated on real brain-speech entrainment data. In conclusion, contrasts of parametric maps provide precarious information for source location. To specifically address the question of location difference, one should turn to dedicated methods as the one proposed here.

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Section: Location Comparison In Genuine Brain-speech Entrainment Datasupporting

confidence: 87%

Section: Brain-speech Entrainment Resultsmentioning

confidence: 99%

Section: Simulationsmentioning

confidence: 99%

Section: Subjectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contrasting functional imaging parametric maps: The mislocation problem and alternative solutions

2018

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Selective attention modulates neural envelope tracking of informationally masked speech in healthy older adults

Kurthen

Galbier

Jagoda

et al. 2021

Human Brain Mapping

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Speech understanding in noisy situations is compromised in old age. This study investigated the energetic and informational masking components of multi‐talker babble noise and their influence on neural tracking of the speech envelope in a sample of healthy older adults. Twenty‐three older adults (age range 65–80 years) listened to an audiobook embedded in noise while their electroencephalogram (EEG) was recorded. Energetic masking was manipulated by varying the signal‐to‐noise ratio (SNR) between target speech and background talkers and informational masking was manipulated by varying the number of background talkers. Neural envelope tracking was measured by calculating temporal response functions (TRFs) between speech envelope and EEG. Number of background talkers, but not SNR modulated the amplitude of an earlier (around 50 ms time lag) and a later (around 300 ms time lag) peak in the TRFs. Selective attention, but not working memory or peripheral hearing additionally modulated the amplitude of the later TRF peak. Finally, amplitude of the later TRF peak was positively related to accuracy in the comprehension task. The results suggest that stronger envelope tracking is beneficial for speech‐in‐noise understanding and that selective attention is an important ability supporting speech‐in‐noise understanding in multi‐talker scenes.

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Improvement of the thalamocortical white matter network in people with stable treated relapsing–remitting multiple sclerosis over time

Alshehri,

Koussis,

Al‐iedani

et al. 2024

NMR in Biomedicine

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Advanced imaging techniques (tractography) enable the mapping of white matter (WM) pathways and the understanding of brain connectivity patterns. We combined tractography with a network‐based approach to examine WM microstructure on a network level in people with relapsing–remitting multiple sclerosis (pw‐RRMS) and healthy controls (HCs) over 2 years. Seventy‐six pw‐RRMS matched with 43 HCs underwent clinical assessments and 3T MRI scans at baseline (BL) and 2‐year follow‐up (2‐YFU). Probabilistic tractography was performed, accounting for the effect of lesions, producing connectomes of 25 million streamlines. Network differences in fibre density across pw‐RRMS and HCs at BL and 2‐YFU were quantified using network‐based statistics (NBS). Longitudinal network differences in fibre density were quantified using NBS in pw‐RRMS, and were tested for correlations with disability, cognition and fatigue scores. Widespread network reductions in fibre density were found in pw‐RRMS compared with HCs at BL in cortical regions, with more reductions detected at 2‐YFU. Pw‐RRMS had reduced fibre density at BL in the thalamocortical network compared to 2‐YFU. This effect appeared after correction for age, was robust across different thresholds, and did not correlate with lesion volume or disease duration. Pw‐RRMS demonstrated a robust and long‐distance improvement in the thalamocortical WM network, regardless of age, disease burden, duration or therapy, suggesting a potential locus of neuroplasticity in MS. This network's role over the disease's lifespan and its potential implications in prognosis and treatment warrants further investigation.

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Left Superior Temporal Gyrus Is Coupled to Attended Speech in a Cocktail-Party Auditory Scene

Cited by 108 publications

References 54 publications

Contrasting functional imaging parametric maps: The mislocation problem and alternative solutions

Contrasting functional imaging parametric maps: The mislocation problem and alternative solutions

Selective attention modulates neural envelope tracking of informationally masked speech in healthy older adults

Improvement of the thalamocortical white matter network in people with stable treated relapsing–remitting multiple sclerosis over time

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