EEG activity during movement planning encodes upcoming peak speed and acceleration and improves the accuracy in predicting hand kinematics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

18 Scopus Citations
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Author(s)

  • Lingling Yang
  • Howard Leung
  • Markus Plank
  • Joe Snider
  • Howard Poizner

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number6823644
Pages (from-to)22-28
Journal / PublicationIEEE Journal of Biomedical and Health Informatics
Volume19
Issue number1
Online published30 May 2014
Publication statusPublished - Jan 2015

Abstract

The relationship between movement kinematics and human brain activity is an important and fundamental question for the development of neural prosthesis. The peak velocity and the peak acceleration could best reflect the feedforward-type movement; thus, it is worthwhile to investigate them further. Most related studies focused on the correlation between kinematics and brain activity during the movement execution or imagery. However, human movement is the result of the motor planning phase as well as the execution phase and researchers have demonstrated that statistical correlations exist between EEG activity during the motor planning and the peak velocity and the peak acceleration using grand-average analysis. In this paper, we examined whether the correlations were concealed in trial-to-trial decoding from the low signal-to-noise ratio of EEG activity. The alpha and beta powers from the movement planning phase were combined with the alpha and beta powers from the movement execution phase to predict the peak tangential speed and acceleration. The results showed that EEG activity from the motor planning phase could also predict the peak speed and the peak acceleration with a reasonable accuracy. Furthermore, the decoding accuracy of the peak speed and the peak acceleration could both be improved by combining band powers from the motor planning phase with the band powers from the movement execution.

Citation Format(s)

EEG activity during movement planning encodes upcoming peak speed and acceleration and improves the accuracy in predicting hand kinematics. / Yang, Lingling; Leung, Howard; Plank, Markus; Snider, Joe; Poizner, Howard.

In: IEEE Journal of Biomedical and Health Informatics, Vol. 19, No. 1, 6823644, 01.2015, p. 22-28.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review