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Cited by 13Motor Control and AdaptationVestibular and auditory disordersVisual perception and processing mechanisms

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Kinematic redundancy and variance of eye, head and trunk displacements during large horizontal gaze reorientations in standing humans

Sklavos, Sokratis, Anastasopoulos, Dimitri, Bronstein, Adolfo·2010·Experimental Brain Research
DOI 10.1007/s00221-010-2192-8
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Abstract

Shifting the direction of the line of sight in everyday life often involves rotations not only of the eyes and head but also of the trunk. Here, we investigated covariation patterns of eye-in-orbit, head-on-trunk and trunk-in-space angular horizontal displacements during whole-body rotations to targets of up to 180 degrees eccentricity performed by standing healthy human subjects. The spatial covariation was quantified statistically across various behavioral task conditions (unpredictable, memory driven predictable, visual feedback) and constraints (accuracy) by principal components (PC) analysis. Overall, the combined movement was stereotyped such that the first two PCs accounted for essentially the whole data variance of combined gaze transfers up to about 400 ms, suggesting that the three mechanical degrees of freedom under consideration are reduced to two kinematic degrees of freedom. Moreover, quantification of segment velocity variability across repetitions showed that velocities of eye-in-space and head-in-space (i.e. 'end-point' velocity) were less variable than those of the elemental variables composing them. In contrast, three statistically significant PCs accounted for the covariation of the three segments during presumably vestibularly mediated nystagmic transfers, suggesting control by a separate driving circuit. We conclude that progression of the line of sight is initially stereotypic and fulfills criteria defining a motor synergy.

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Metadata

Authors
Sklavos, S., Anastasopoulos, D., & Bronstein, A.
Affiliations
  • National and Kapodistrian University of Athens (GR)
  • Charing Cross Hospital (GB)
Corresponding author
Anastasopoulos, Dimitri
ORCID
Venue
Experimental Brain Research
Publisher
Springer Science and Business Media LLC
Published
2010-03-03
Volume
202
Issue
4
Pages
879-890
ISSN
  • 0014-4819 (ISSN-L)
  • 1432-1106
DOI
10.1007/s00221-010-2192-8
OpenAlex
W2047255389
Cited by
13
References
41
Citations by year
2026: 1 · 2019: 4 · 2017: 1 · 2016: 2 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 1
FWCI
0.58
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Experimental Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Neurology › Vestibular and auditory disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
Keywords
horizontal eye movements, head movement, trunk rotation, kinematic redundancy, motor synergies, whole-body rotation, nystagmus, vestibular control, visual feedback, lines of sight
MeSH terms
Biomechanical Phenomena, Eye Movements, Female, Humans, Male, Middle Aged, Posture, Task Performance and Analysis, Thorax, Head Movements, Principal Component Analysis, Eye Movement Measurements

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