Unveiling neural coupling within the sensorimotor system: directionality and nonlinearity

Yuan Yang, Jules Dewald, Frans van der Helm, Alfred Schouten

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)
16 Downloads (Pure)

Abstract

Neural coupling between the central nervous system and the periphery is essential for the neural control of movement. Corticomuscular coherence is a popular linear technique to assess synchronised oscillatory activity in the sensorimotor system. This oscillatory coupling originates from ascending somatosensory feedback and descending motor commands. However, corticomuscular coherence cannot separate this bidirectionality. Furthermore, the sensorimotor system is nonlinear, resulting in cross-frequency
coupling. Cross-frequency oscillations cannot be assessed nor exploited by linear measures. Here, we emphasise the need of novel coupling measures, which provide directionality and acknowledge nonlinearity, to unveil neural coupling in the sensorimotor system. We highlight recent advances in the field and argue that assessing directionality and nonlinearity of neural coupling
will break new ground in the study of the control of movement in healthy and neurologically impaired individuals.
Original languageEnglish
Pages (from-to)2407-2415
JournalEuropean journal of neuroscience
Volume48 (2018)
Issue number7
DOIs
Publication statusPublished - 2017

Keywords

  • corticomuscular interaction
  • cross-frequency coupling
  • granger causality
  • sensorimotor system
  • sensory feedback

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