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Investigating synchrony perception of audiovisual speech with a continuous carry-over fMRI design

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Academic year: 2021

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HAL Id: hal-02817574

https://hal.inrae.fr/hal-02817574

Submitted on 6 Jun 2020

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Investigating synchrony perception of audiovisual speech with a continuous carry-over fMRI design

Scott Love, Marianne Latinus, Phil Mcaleer, Frank Pollick

To cite this version:

Scott Love, Marianne Latinus, Phil Mcaleer, Frank Pollick. Investigating synchrony perception of audiovisual speech with a continuous carry-over fMRI design. 16th Annual Meeting of the Organization for Human Brain Mapping, Jun 2010, Barcelona, Spain. 2010. �hal-02817574�

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RH-IFG/MFG

Negative Correlation Positive Correlation

Functional Scan Parameters:

- 3T Tim Trio Siemens scanner - TR = 2500ms

- TE= 30ms

- 3x3x3mm voxels - 34 slices

- Areas in posterior Superior Temporal Gyrus and middle Temporal Gyrus show, parametric responses for video lead stimuli but a consistent response for audio lead

- Middle Superior Temporal Gyrus seems to show parametric modulation with decreasing levels of asynchrony

- No area showed a larger positive activation for synchronous than asynchronous stimuli.

- However, several areas showed less negative activation for synchronous compared to asynchronous stimuli.

LH-Angular Gyrus

Orbital Coretex/MFG

RH-IFG

RH-IFG LH-IFG

RH-MFG

RH-Inferior TG

Références

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