Left superior temporal gyrus is coupled to attended speech in a cocktail-party auditory scene

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

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)

Abstract

Using a continuous listening task, we evaluated the coupling between the listener’s cortical activity and the temporal envelopes of different sounds in a multitalker auditory scene using magnetoencephalography and corticovocal coherence analysis. Neuromagnetic signals were recorded from 20 right-handed healthy adult humans who listened to five different recorded stories (attended speech streams), one without any multitalker background (No noise) and four mixed with a “cocktail party” multitalker background noise at four signal-to-noise ratios (5, 0, −5, and −10 dB) to produce speech-in-noise mixtures, here referred to as Global scene. Coherence analysis revealed that the modulations of the attended speech stream, presented without multitalker background, were coupled at ~0.5 Hz to the activity of both superior temporal gyri, whereas the modulations at 4–8 Hz were coupled to the activity of the right supratemporal auditory cortex. In cocktail party conditions, with the multitalker background noise, the coupling was at both frequencies stronger for the attended speech stream than for the unattended Multitalker background. The coupling strengths decreased as the Multitalker background increased. During the cocktail party conditions, the ~0.5 Hz coupling became left-hemisphere dominant, compared with bilateral coupling without the multitalker background, whereas the 4–8 Hz coupling remained right-hemisphere lateralized in both conditions. The brain activity was not coupled to the multitalker background or to its individual talkers. The results highlight the key role of listener’s left superior temporal gyri in extracting the slow ~0.5 Hz modulations, likely reflecting the attended speech stream within a multitalker auditory scene.

Original languageEnglish
Pages (from-to)1596-1606
Number of pages11
JournalJournal of Neuroscience
Volume36
Issue number5
DOIs
Publication statusPublished - 3 Feb 2016
Externally publishedYes

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Temporal Lobe
Noise
Magnetoencephalography
Auditory Cortex
Signal-To-Noise Ratio
Brain

Cite this

Vander Ghinst, M., Bourguignon, M., Op de Beeck, M., Wens, V., Marty, B., Hassid, S., ... De Tiège, X. (2016). Left superior temporal gyrus is coupled to attended speech in a cocktail-party auditory scene. Journal of Neuroscience, 36(5), 1596-1606. https://doi.org/10.1523/JNEUROSCI.1730-15.2016
Vander Ghinst, Marc ; Bourguignon, Mathieu ; Op de Beeck, Marc ; Wens, Vincent ; Marty, Brice ; Hassid, Sergio ; Choufani, Georges ; Jousmäki, Veikko ; Hari, Riitta ; Van Bogaert, Patrick ; Goldman, Serge ; De Tiège, Xavier. / Left superior temporal gyrus is coupled to attended speech in a cocktail-party auditory scene. In: Journal of Neuroscience. 2016 ; Vol. 36, No. 5. pp. 1596-1606.
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Vander Ghinst, M, Bourguignon, M, Op de Beeck, M, Wens, V, Marty, B, Hassid, S, Choufani, G, Jousmäki, V, Hari, R, Van Bogaert, P, Goldman, S & De Tiège, X 2016, 'Left superior temporal gyrus is coupled to attended speech in a cocktail-party auditory scene', Journal of Neuroscience, vol. 36, no. 5, pp. 1596-1606. https://doi.org/10.1523/JNEUROSCI.1730-15.2016

Left superior temporal gyrus is coupled to attended speech in a cocktail-party auditory scene. / Vander Ghinst, Marc; Bourguignon, Mathieu; Op de Beeck, Marc; Wens, Vincent; Marty, Brice; Hassid, Sergio; Choufani, Georges; Jousmäki, Veikko; Hari, Riitta; Van Bogaert, Patrick; Goldman, Serge; De Tiège, Xavier.

In: Journal of Neuroscience, Vol. 36, No. 5, 03.02.2016, p. 1596-1606.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Vander Ghinst, Marc

AU - Bourguignon, Mathieu

AU - Op de Beeck, Marc

AU - Wens, Vincent

AU - Marty, Brice

AU - Hassid, Sergio

AU - Choufani, Georges

AU - Jousmäki, Veikko

AU - Hari, Riitta

AU - Van Bogaert, Patrick

AU - Goldman, Serge

AU - De Tiège, Xavier

PY - 2016/2/3

Y1 - 2016/2/3

N2 - Using a continuous listening task, we evaluated the coupling between the listener’s cortical activity and the temporal envelopes of different sounds in a multitalker auditory scene using magnetoencephalography and corticovocal coherence analysis. Neuromagnetic signals were recorded from 20 right-handed healthy adult humans who listened to five different recorded stories (attended speech streams), one without any multitalker background (No noise) and four mixed with a “cocktail party” multitalker background noise at four signal-to-noise ratios (5, 0, −5, and −10 dB) to produce speech-in-noise mixtures, here referred to as Global scene. Coherence analysis revealed that the modulations of the attended speech stream, presented without multitalker background, were coupled at ~0.5 Hz to the activity of both superior temporal gyri, whereas the modulations at 4–8 Hz were coupled to the activity of the right supratemporal auditory cortex. In cocktail party conditions, with the multitalker background noise, the coupling was at both frequencies stronger for the attended speech stream than for the unattended Multitalker background. The coupling strengths decreased as the Multitalker background increased. During the cocktail party conditions, the ~0.5 Hz coupling became left-hemisphere dominant, compared with bilateral coupling without the multitalker background, whereas the 4–8 Hz coupling remained right-hemisphere lateralized in both conditions. The brain activity was not coupled to the multitalker background or to its individual talkers. The results highlight the key role of listener’s left superior temporal gyri in extracting the slow ~0.5 Hz modulations, likely reflecting the attended speech stream within a multitalker auditory scene.

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