Literaturnachweis - Detailanzeige
| Autor/inn/en | Pavani, Francesco; Farne, Alessandro; Ladavas, Elisabetta |
|---|---|
| Titel | Poor Hand-Pointing to Sounds in Right Brain-Damaged Patients: Not Just a Problem of Spatial-Hearing |
| Quelle | In: Brain and Cognition, 59 (2005) 3, S.215-224 (10 Seiten)
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| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0278-2626 |
| DOI | 10.1016/j.bandc.2005.06.003 |
| Schlagwörter | Neurological Impairments; Spatial Ability; Perceptual Impairments; Auditory Perception; Brain; Head Injuries; Foreign Countries; Visual Perception; Italy |
| Abstract | We asked 22 right brain-damaged (RBD) patients and 11 elderly healthy controls to perform hand-pointing movements to free-field unseen sounds, while modulating two non-auditory variables: the initial position of the responding hand (left, centre or right) and the presence or absence of task-irrelevant ambient vision. RBD patients suffering from visual neglect, unlike RBD patients without neglect and healthy controls, showed a systematic rightward error in sound localisation, which was modulated by the non-auditory variables. Localisation errors were exacerbated by initial hand-position to the right of the body-midline, and reduced by the leftwards initial hand-position. Moreover, for the visual neglect patients, mere presence of ambient vision worsened localisation errors. These results demonstrate that although hand-pointing to sounds has often been considered a straightforward approach to investigate sound-localisation abilities in brain-damaged patients, in some patients it may actually reveal localisation deficits that reflect a combination of impaired spatial-hearing and spatial biases from other sensory modalities (i.e., vision and proprioception). (Author). |
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| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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