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Sensors 2018, 18(9), 2920; https://doi.org/10.3390/s18092920

The Dynamic EEG Microstates in Mental Rotation

1
School of Computer and Technology, Hangzhou Dianzi University, Hangzhou 310000, China
2
Fujian Key Laboratory of Rehabilitation Technology, Fuzhou 350000, China
3
Tensor Learning Unit, RIKEN AIP, Tokyo 103-0027, Japan
4
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200000, China
*
Authors to whom correspondence should be addressed.
Received: 26 May 2018 / Revised: 20 August 2018 / Accepted: 30 August 2018 / Published: 3 September 2018
(This article belongs to the Special Issue EEG Electrodes)
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Abstract

Mental rotation is generally analyzed based on event-related potential (ERP) in a time domain with several characteristic electrodes, but neglects the whole spatial-temporal brain pattern in the cognitive process which may reflect the underlying cognitive mechanism. In this paper, we mainly proposed an approach based on microstates to examine the encoding of mental rotation from the spatial-temporal changes of EEG signals. In particular, we collected EEG data from 11 healthy subjects in a mental rotation cognitive task using 12 different stimulus pictures representing left and right hands at various rotational angles. We applied the microstate method to investigate the microstates conveyed by the event-related potential extracted from EEG data during mental rotation, and obtained four microstate modes (referred to as modes A, B, C, D, respectively). Subsequently, we defined several measures, including microstate sequences, topographical map, hemispheric lateralization, and duration of microstate, to characterize the dynamics of microstates during mental rotation. We observed that (1) the microstates sequence had a specified progressing mode, i.e., A B A ; (2) the activation of the right parietal occipital region was stronger than that of the left parietal occipital region according to the hemispheric lateralization of the microstates mode A; and (3) the duration of the second microstates mode A showed the shorter duration in the vertical stimuli, named “angle effect”. View Full-Text
Keywords: mental rotation; microstate; event-related potential; cognitive process; spatial-temporal; dynamic EEG mental rotation; microstate; event-related potential; cognitive process; spatial-temporal; dynamic EEG
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Kong, W.; Wang, L.; Zhang, J.; Zhao, Q.; Sun, J. The Dynamic EEG Microstates in Mental Rotation. Sensors 2018, 18, 2920.

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