The nature of finger enslaving: new results and their implications

Valters Abolins, Mark L. Latash

Research output: Contribution to journalReview articlepeer-review

13 Citations (Scopus)

Abstract

We present a review on the phenomenon of unintentional finger action seen when other fingers of the hand act intentionally. This phenomenon (enslaving) has been viewed as a consequence of both peripheral (e.g., connective tissue links and multifinger muscles) and neural (e.g., projections of corticospinal pathways) factors. Recent studies have shown relatively large and fast drifts in enslaving toward higher magnitudes, which are not perceived by subjects. These and other results emphasize the defining role of neural factors in enslaving. We analyze enslaving within the framework of the theory of motor control with spatial referent coordinates. This analysis suggests that unintentional finger force changes result from drifts of referent coordinates, possibly reflecting the spread of cortical excitation.

Original languageEnglish
Pages (from-to)680-703
Number of pages24
JournalMotor Control
Volume25
Issue number4
DOIs
Publication statusPublished - Oct 2021
Externally publishedYes

Keywords*

  • Cortical control
  • Finger mode
  • Hand
  • Individuation
  • Referent coordinate
  • Unintentional action

Field of Science*

  • 3.2 Clinical medicine
  • 3.1 Basic medicine
  • 3.3 Health sciences

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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