Vision substitution and depth perception: early blind subjects experience visual perspective through their ears.
Aim.Sensory substitution (SS) represents a unique opportunity to provide congenitally blind persons with visual-like experience. Although visual experience influences the way we perceive the external world, little is known about the effects of SS experience. Purpose.To investigate the effects of per...
| Publicado en: | Disability & Rehabilitation: Assistive Technology Vol. 5; no. 3; pp. 175 - 184 |
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| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
May2010
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105033986&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105033986 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17483107 1X04 jtl: Disability & Rehabilitation: Assistive Technology issn: 17483107 maglogo: Y pubinfo: dt: May2010 vid: 5 iid: 3 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105033986 2010691488 10.3109/17483100903253936 NLM20214472 105033986 ppf: 175 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Vision substitution and depth perception: early blind subjects experience visual perspective through their ears. aug: au: Renier L De Volder AG affil: Neural Rehabilitation Engineering Laboratory, Institute of Neuroscience, Université Catholique de Louvain, UCL 54-46, B-1200, Brussels, Belgium; laurent.renier@uclouvain.be sug: subj: Adaptation, Physiological Blindness Physiopathology Depth Perception Physiology Ear Adolescence Adult Analysis of Variance Assistive Technology Devices Descriptive Statistics Female Funding Source Human Male Middle Age Perception Task Performance and Analysis Adolescent: 13-18 years Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Aim.Sensory substitution (SS) represents a unique opportunity to provide congenitally blind persons with visual-like experience. Although visual experience influences the way we perceive the external world, little is known about the effects of SS experience. Purpose.To investigate the effects of perceptual experience (visual versus sensory substitution) on depth perception through an SS system, object localization abilities of early blind (n=10), and blindfolded sighted control subjects (n=20) were assessed before and after a practicing period with a visual-to-auditory SS device. Method.During the pre- and post-test, subjects had to replace, by hand, an object previously localized using the device. The practicing phase consisted of three sessions during which subjects tried to localize and grasp an object using the device. Results.At the pre-test, sighted subjects spontaneously used efficiently different pictorial depth cues to estimate object distance while the blind subjects were affected by their lack of visual experience and were significantly less accurate. Post-test showed that the brief practicing phase sufficed to enable blind subjects to acquire the rules of visual depth and to use them efficiently with the device. Conclusions.These results suggest the possibility to compensate for some effects of early and long-lasting blindness by providing visual-like experience via SS. Theoretical implications are discussed. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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