Visual Object Localization through Vestibular and Neck Inputs. 2: Updating Off-Mid-Sagittal-Plane Target Positions
| Autor: | Jean Blouin, Jean-Louis Vercher, Gabriel M. Gauthier |
|---|---|
| Přispěvatelé: | Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Vercher, Jean-Louis, Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU) |
| Rok vydání: | 1997 |
| Předmět: |
medicine.medical_specialty
Computer science vestibular signal Audiology Rotation 050105 experimental psychology 03 medical and health sciences 0302 clinical medicine body orientation Position (vector) Orientation (geometry) Motor system medicine 0501 psychology and cognitive sciences Computer vision human Vestibular system business.industry [SCCO.NEUR]Cognitive science/Neuroscience General Neuroscience [SCCO.NEUR] Cognitive science/Neuroscience 05 social sciences Eye movement Sensory Systems Saccadic masking Sagittal plane space perception medicine.anatomical_structure Otorhinolaryngology Neurology (clinical) Artificial intelligence business object localization 030217 neurology & neurosurgery |
| Zdroj: | Journal of Vestibular Research Journal of Vestibular Research, 1997, 7 (2-3), pp.137-143 Journal of Vestibular Research, IOS Press, 1997, 7 (2-3), pp.137-143 |
| ISSN: | 1878-6464 0957-4271 |
| DOI: | 10.3233/ves-1997-72-305 |
| Popis: | 3rd International Symposium on the Head/Neck System, VAIL, CO, JUL 02-06, 1995; International audience; The vestibular signal plays a significant role in sensing changes in head orientation during rotations and in determining the magnitude of the rotations, but has only minor contributions in updating the internal representation of object positions with respect to the body after body rotations, The small contribution of the vestibular signal in egocentric object localization was evidenced in experiments in which the subjects reported the remembered position of eccentric earth-fixed targets after passive body rotations. The experiment reported here tested whether motor systems, such as the oculomotor system, make use of vestibular signals to generate accurate goal-directed motor responses toward a target whose position needs to be updated with respect to the body during and after whole-body rotations, The results showed that although subjects can produce saccadic eye movements of about the same magnitude as passive whole-body rotations (as previously reported by a number of researchers), they failed to generate accurate saccades toward the position of an extinguished peripheral visual target after the rotation, Overall, these results combined with those found in the literature suggest different central processes for determining changes in body orientation in complete darkness and for updating a target position with respect to the body during and after body rotations. (C) 1997 Elsevier Science Inc. |
| Databáze: | OpenAIRE |
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