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Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time

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Functional Connectivity Pattern Analysis Underlying Neural Oscillation Synchronization during Deception.

Peng Liu^1,2, Hongkui Shen³, Shumei Ji²

¹Department of Psychology, Institute of Education Sciences, Shanxi Normal University, Linfen, China.

Neural Plasticity

|March 26, 2019

Summary

Deception involves significant changes in brain connectivity, particularly between frontal and parietal/temporal regions. Lying alters neural oscillation synchronization in delta, theta, alpha, and beta frequency bands.

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Area of Science:

Cognitive Neuroscience
Neuroimaging

Background:

Understanding the neural mechanisms of deception is crucial for cognitive science.
Previous research has explored brain activity during deception, but functional connectivity patterns require further elucidation.

Purpose of the Study:

To investigate the functional connectivity among brain regions during deception using event-related coherence.
To characterize changes in neural oscillation synchronization associated with cognitive processes during deception.

Main Methods:

15 participants were divided into honesty and deception groups.
Event-related potential (ERP) signals were recorded using 64-channel electroencephalography (EEG).
Event-related coherence was computed in delta, theta, alpha, and beta frequency bands for specific long-range intrahemispheric electrode pairs.

Main Results:

Deceptive responses showed greater connectivity in frontoparietal and frontotemporal networks compared to the frontooccipital network.
The deception group exhibited lower alpha and beta band coherence in frontoparietal regions and altered delta and beta band coherence in frontotemporal regions compared to the honesty group.
Increased delta and theta band coherence was observed in specific left frontoparietal electrode pairs during deception.

Conclusions:

Cognitive processes during deception involve dynamic changes in ensemble activities between frontal and parietal/temporal brain regions.
Neural oscillation synchronization patterns differ significantly between honest and deceptive responses.