Contribution of ankle, knee, and hip joints to the perception threshold for support surface rotation

Autor: Pierre-Alain Barraud, Christian Raphel, Christophe Bourdin, Vincent Nougier, Didier Poquin, Normand Teasdale, Bettina Debû
Přispěvatelé: Laboratoire Sport et Performance Motrice (EA 597), Université Joseph Fourier - Grenoble 1 (UJF), Centre de Recherches du Service de Santé des Armées (CRSSA), Service de Santé des Armées, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Palluel, Estelle
Jazyk: angličtina
Rok vydání: 1999
Předmět:
Male
MESH: Proprioception
Motion Perception
Rotation
MESH: Differential Threshold
0302 clinical medicine
MESH: Rotation
MESH: Time and Motion Studies
Psychophysics
Gravity Sensing
General Psychology
media_common
Mathematics
05 social sciences
[SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences
MESH: Posture
Sensory Systems
MESH: Leg
MESH: Joints
medicine.anatomical_structure
MESH: Motion Perception
Time and Motion Studies
Female
Support surface
MESH: Neck
Adult
musculoskeletal diseases
medicine.medical_specialty
media_common.quotation_subject
Posture
MESH: Gravity Perception
Differential Threshold
MESH: Orientation
Experimental and Cognitive Psychology
050105 experimental psychology
03 medical and health sciences
Physical medicine and rehabilitation
Orientation
Perception
MESH: Analysis of Variance
medicine
Humans
0501 psychology and cognitive sciences
Sensory cue
Joint (geology)
Analysis of Variance
Leg
MESH: Humans
Proprioception
MESH: Adult
MESH: Male
Joints
Ankle
MESH: Female
Neck
030217 neurology & neurosurgery
[SDV.NEU.SC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences
Zdroj: Perception and Psychophysics
Perception and Psychophysics, Psychonomic Society, 1999, 61 (4), pp.615-24
Perception and Psychophysics, 1999, 61 (4), pp.615-24
Scopus-Elsevier
ISSN: 0031-5117
1532-5962
Popis: The purpose of the present experiment was to investigate the extent to which subjects can perceive, at very slow velocities, an angular rotation of the support surface about the medio-lateral axis of the ankle, knee, hip, or neck joint when visual cues are not available. Subjects were passively displaced on a slowly rotating platform at .01, .03, and .05 deg/sec. The subjects' task was to detect movements of the platform in four different postural conditions allowing body oscillations about the ankle, knee, hip, or neck joint. In Experiment 1, subjects had to detect backward and forward rotation (pitching). In Experiment 2, they had to detect left and right rotations of the platform (rolling). In Experiment 3, subjects had to detect both backward/forward and left/right rotations of the platform, with the body fixed and the head either fixed or free to move. Overall, when the body was free to oscillate about the ankle, knee, or hip joints, a similar threshold for movement perception was observed. This threshold was lower for rolling than for pitching. Interestingly, in these postural conditions, an unconscious compensation in the direction opposite to the platform rotation was observed on most trials. The threshold for movement perception was much higher when the head was the only segment free to oscillate about the neck joint. These results suggest that, in static conditions, the otoliths are poor detectors of the direction of gravity forces. They also suggest that accurate perception of body orientation is improved when proprioceptive information can be dynamically integrated.
Databáze: OpenAIRE
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