Sensing form - finger gaiting as key to tactile object exploration - a data glove analysis of a prototypical daily task

Autor: Bruno Weder, Werner Krammer, John Missimer, Manuela Pastore-Wapp, Roland Wiest, Simon Habegger
Rok vydání: 2020
Předmět:
musculoskeletal diseases
Adult
Male
Power graph analysis
Time series
Computer science
Principal component analysis
Graph analysis
610 Medicine & health
Health Informatics
Context (language use)
Workspace
Wired glove
Thumb
050105 experimental psychology
lcsh:RC321-571
Task (project management)
Fingers
03 medical and health sciences
0302 clinical medicine
medicine
Humans
Object in-hand manipulation
0501 psychology and cognitive sciences
Computer vision
lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry
Aged
Aged
80 and over
Cuboid
Finger gaiting
business.industry
Research
05 social sciences
Rehabilitation
GRASP
Middle Aged
Healthy Volunteers
body regions
medicine.anatomical_structure
Motor Skills
Touch
Finger synchrony
Female
Artificial intelligence
business
Precise handling
030217 neurology & neurosurgery
Zdroj: Krammer, Werner; Missimer, John H; Habegger, Simon; Pastore-Wapp, Manuela; Wiest, Roland; Weder, Bruno (2020). Sensing form-finger gaiting as key to tactile object exploration-a data glove analysis of a prototypical daily task. Journal of NeuroEngineering and Rehabilitation, 17(1), p. 133. BioMed Central 10.1186/s12984-020-00755-6
Journal of NeuroEngineering and Rehabilitation
Journal of NeuroEngineering and Rehabilitation, Vol 17, Iss 1, Pp 1-17 (2020)
ISSN: 1743-0003
Popis: Background Motor hand skill and associated dexterity is important for meeting the challenges of daily activity and an important resource post-stroke. In this context, the present study investigated the finger movements of right-handed subjects during tactile manipulation of a cuboid, a prototypical task underlying tactile exploration. During one motor act, the thumb and fingers of one hand surround the cuboid in a continuous and regular manner. While the object is moved by the guiding thumb, the opposed supporting fingers are replaced once they reach their joint limits by free fingers, a mechanism termed finger gaiting. Methods For both hands of 22 subjects, we acquired the time series of consecutive manipulations of a cuboid at a frequency of 1 Hz, using a digital data glove consisting of 29 sensors. Using principle component analysis, we decomposed the short action into motor patterns related to successive manipulations of the cuboid. The components purport to represent changing grasp configurations involving the stabilizing fingers and guiding thumb. The temporal features of the components permits testing whether the distinct configurations occur at the frequency of 1 Hz, i.e. within the time window of 1 s, and, thus, taxonomic classification of the manipulation as finger gaiting. Results The fraction of variance described by the principal components indicated that three components described the salient features of the single motor acts for each hand. Striking in the finger patterns was the prominent and varying roles of the MCP and PIP joints of the fingers, and the CMC joint of the thumb. An important aspect of the three components was their representation of distinct finger configurations within the same motor act. Principal component and graph theory analysis confirmed modular, functionally synchronous action of the involved joints. The computation of finger trajectories in one subject illustrated the workspace of the task, which differed for the right and left hands. Conclusion In this task one complex motor act of 1 s duration could be described by three elementary and hierarchically ordered grasp configurations occurring at the prescribed frequency of 1 Hz. Therefore, these configurations represent finger gaiting, described until now only in artificial systems, as the principal mechanism underlying this prototypical task. Trial registration clinicaltrials.gov, NCT02865642, registered 12 August 2016.
Databáze: OpenAIRE
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