Active versus passive proprioceptive straight-ahead pointing in normal subjects

Eighty blindfolded healthy female subjects participated in an active and a passive straight-ahead pointing task to study the estimation of the subjective sagittal middle in the presence or absence of an active haptic exploration. Subjects were to point straight-ahead with their left or right index f...

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Bibliographic Details
Published in:Brain and cognition 2004-07, Vol.55 (2), p.290-294
Main Authors: Chokron, Sylvie, Colliot, Pascale, Atzeni, Thierry, Bartolomeo, Paolo, Ohlmann, Théophile
Format: Article
Language:English
Subjects:
Active and passive exploration
Active Learning
Activity levels. Psychomotricity
Adult
Biological and medical sciences
Correlation
Egocentric reference
Error Patterns
Female
Females
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Hand - physiology
Humans
Kinesthesis - physiology
Lateral Dominance
Motion
Movement - physiology
Neuropsychology
Orientation - physiology
Perception
Perceptual Motor Learning
Proprioception - physiology
Proprioception. Interoception. Pain perception
Proprioceptive straight-ahead pointing
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor activities
Psychomotor Performance - physiology
Reference Values
Sensory Integration
Space Perception - physiology
Spatial Ability
Spatial Behavior - physiology
Statistical Bias
Stimuli
Task Analysis
Unilateral spatial neglect
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Summary:Eighty blindfolded healthy female subjects participated in an active and a passive straight-ahead pointing task to study the estimation of the subjective sagittal middle in the presence or absence of an active haptic exploration. Subjects were to point straight-ahead with their left or right index finger starting from different right- or left-sided locations, while performing either an active movement or with the hand being passively moved by the examiner. Results showed: (i) a significant effect of the hand used only on the active straight-ahead pointing task performance; (ii) a significant effect of the starting position both on the active and passive pointing performance; (iii) a significant correlation between the two protocols only in terms of spatial bias (algebraic error) but not in terms of precision (absolute errors). These results are discussed with regards to normal and neuropsychological studies of the egocentric frame of reference.
ISSN:0278-2626
1090-2147
DOI:10.1016/j.bandc.2004.02.015