Motor equivalence during multi-finger accurate force production

• Published in: Experimental brain research Vol. 233; no. 2; pp. 487 - 502
• Main Authors: Mattos, Daniela, Schöner, Gregor, Zatsiorsky, Vladimir M., Latash, Mark L.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2015; Springer; Springer Nature B.V
• Subjects: Adult; Analysis of Variance; Arm - physiology; Biomedical and Life Sciences; Biomedicine; Female; Fingers; Fingers - innervation; Fingers - physiology; Hand Strength - physiology; Humans; Hypotheses; Male; Mechanical Phenomena; Movement - physiology; Muscle Strength; Muscle, Skeletal - physiology; Neurology; Neurosciences; Physiological aspects; Psychological aspects; Psychological research; Psychomotor performance; Psychomotor Performance - physiology; Research Article; Time Factors; Variables; Variance analysis; Young Adult; Motor equivalence; Uncontrolled manifold hypothesis; Synergy; Perturbation; Finger force

We explored stability of multi-finger cyclical accurate force production action by analysis of responses to small perturbations applied to one of the fingers and inter-cycle analysis of variance. Healthy subjects performed two versions of the cyclical task, with and without an explicit target. The “...