Left motor delta oscillations reflect asynchrony detection in multisensory speech perception (New paper by former BANDLAB members E. Biau & B. Schultz)

Read how Biau and colleagues manipulated audio-visual asynchrony detection and their results that read like this:

‘Results confirm (i) that participants accurately detected audio-visual asynchrony, and (ii) increased delta power in the left motor cortex in response to audio-visual asynchrony. The difference of delta power between asynchronous and synchronous conditions predicted behavioural performance, and (iii) decreased delta-beta coupling in the left motor cortex when listeners could not accurately map visual and auditory prosodies. Finally, both behavioural and neurophysiological evidence was altered when a speaker’s face was degraded by a visual mask.’

Those results suggest that asynchrony detection of audio-visual stimuli in speech is supported by left motor delta oscillations!

Read more here: https://doi.org/10.1523/JNEUROSCI.2965-20.2022

New paper alert! Dysfunctional Timing in Traumatic Brain Injury Patients: Co-occurrence of Cognitive, Motor and Perceptual Deficits

This paper sheds some light on how timing abilities across perception and production domains are affected by traumatic brain injury (TBI). Functional impairments were found in TBI patients for cognitive processing speed and perceptual timing, which extended to motor timing.

Find out more here: 10.3389/fpsyg.2021.731898

New paper on eLife: Temporo-cerebellar connectivity underlies timing constraints in audition

In this article we tested whether temporo-cerebellar disconnection is associated with the processing of sounds at short-timescales. The findings support the view that the encoding and modeling of rapidly modulated auditory spectro-temporal properties can rely on a temporo-cerebellar interface. We discuss these findings in view of the conjecture that proactive adaptation to a dynamic environment via internal models is a generalizable principle.

You can find the article here: https://elifesciences.org/articles/67303

Lab members contributing: Sonja Kotz and Michael Schwartze

New paper alert! Neural Tracking of Speech: Top-Down and Bottom-Up Influences in the Musician’s Brain

New paper alert!

Who doesn’t love a musician’s brain?

In our new paper, we are discussing the: “Neural Tracking of Speech: Top-Down and Bottom-Up Influences in the Musician’s Brain”. What is so special about musicians’ brains and how might that affect speech processing. We connect to previous literature on speech processing models and how musical expertise might modulate language-related networks of the human brain.

Fresh from the press https://www.jneurosci.org/content/41/31/6579

BAND-lab members contributing: Katerina Kandylaki and Antonio Criscuolo

https://doi.org/10.1016/j.biopsycho.2021.108135

This project was conducted in collaboration with Simon Rigoulot, Melissa Kadi and Simone Dalla Bella at the International Laboratory for Brain, Music and Sound Research (BRAMS) in Montreal, Canada.

We investigated EEG responses to auditory oddball sequences that had an isochronous or random inter-stimulus interval (ISI), while comparing younger with older adults.

We found that the P50 distinguishes between isochrounous and random standard tones in the younger adult group, but not in the older one.

Talk by Sonja on “Timing and Prediction in Audition”

Sonja will be a speaker in a virtual “Tinnitus mini-symposium” on July 8 (16-18h CEST). The other speakers are Prof. Holger Schulze on “Neurophysiological Mechanisms of Tinnitus Development” and Dr. Minke van de Berge on “Tinnitus and Auditory Brainstem Stimulation”. The scientific symposium will take place online and is organised in collaboration with Maastricht University, Zuyderland and MUMC+. The targeted audience are audiologists, ENT specialists, researchers, psychologists and other professionals interested in tinnitus.

Registration is free, but required. Here is the link where you can register: https://tinyurl.com/tinnitussymposium

You can find more information about the speakers here:

New paper alert! ‘Auditory thalamus dysfunction and pathophysiology in tinnitus: a predictive network hypothesis’

Our new paper discusses the role of the medial geniculate nucleus (MGB) in tinnitus, while reflecting on animal and human studies. Tinnitus is prevalent in 10-15% in the general population and its underlying mechanism still remains elusive. Here we propose a more general aproach of adaptive sensory gating and temporal processing along the auditory pathway that might add to the thalamo-cortical dysrhythmia profile of tinnitus.

Curious? Read the full paper here: https://link.springer.com/article/10.1007/s00429-021-02284-x