Spectra-temporal patterns underlying mental addition: an ERP and ERD/ERS study

Neuroscience Letters
Yixuan KuShangkai Gao

Abstract

Functional neuroimaging data have shown that mental calculation involves fronto-parietal areas that are composed of different subsystems shared with other cognitive functions such as working memory and language. Event-related potential (ERP) analysis has also indicated sequential information changes during the calculation process. However, little is known about the dynamic properties of oscillatory networks in this process. In the present study, we applied both ERP and event-related (de-)synchronization (ERS/ERD) analyses to EEG data recorded from normal human subjects performing tasks for sequential visual/auditory mental addition. Results in the study indicate that the late positive components (LPCs) can be decomposed into two separate parts. The earlier element LPC1 (around 360ms) reflects the computing attribute and is more prominent in calculation tasks. The later element LPC2 (around 590ms) indicates an effect of number size and appears larger only in a more complex 2-digit addition task. The theta ERS and alpha ERD show modality-independent frontal and parietal differential patterns between the mental addition and control groups, and discrepancies are noted in the beta ERD between the 2-digit and 1-digit mental addition ...Continue Reading

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Citations

Mar 9, 2011·Biological Psychology·Roland H Grabner, Bert De Smedt
Jul 22, 2014·Human Brain Mapping·Mariska J VansteenselNick F Ramsey
Feb 11, 2015·International Journal of Neural Systems·Chun-Ling LinTzyy-Ping Jung
May 26, 2016·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Thomas Hinault, Patrick Lemaire

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