Transcranial magnetic simulation over posterior parietal cortex affects attentional function

Biao Xiang; Lirong Yan; Ningna Li; Changcheng Shi; Fuwu Yan; Yibo Wu

doi:10.1117/12.2673570

3 April 2023 Transcranial magnetic simulation over posterior parietal cortex affects attentional function

Biao Xiang, Lirong Yan, Ningna Li, Changcheng Shi, Fuwu Yan, Yibo Wu

Proceedings Volume 12599, Second International Conference on Digital Society and Intelligent Systems (DSInS 2022); 125991T (2023) https://doi.org/10.1117/12.2673570
Event: 2nd International Conference on Digital Society and Intelligent Systems (DSInS 2022), 2022, Chendgu, China

Abstract

Objective: The posterior parietal cortex (PPC) is involved in cognitive attentional activity, according to neuroimaging research. Its specific role in the brain network responsible for attention need to be further identified. Approach: In this study, an attention network test (ANT) was designed. 1-Hz low-frequency repeated transcranial magnetic stimulation (rTMS) was performed over the right PPC. Behavioral and EEG data were analyzed before and after stimulation. Main results: The behavioral results showed that the frontoparietal network was directly connected to spatial orientation and executive functions. Low-frequency TMS produced an inhibitory effect in opposition to the learning effect, which persisted 24 hours after stimulation and was most pronounced under spatial cues. Event-related potentials (ERP) results showed that the stimulation inhibited the posterior parietal brain neural activity, and in particular, had a significant inhibitory effect on spatial attention. Significance: PPC is crucial in attentional orienting and executive functions. Exploring ways to intervene in brain activity has significant implications for people to recover attentional function.

Citation Download Citation

Biao Xiang, Lirong Yan, Ningna Li, Changcheng Shi, Fuwu Yan, and Yibo Wu "Transcranial magnetic simulation over posterior parietal cortex affects attentional function", Proc. SPIE 12599, Second International Conference on Digital Society and Intelligent Systems (DSInS 2022), 125991T (3 April 2023); https://doi.org/10.1117/12.2673570

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