Haptic Recognition of Non-figurative Tactile Pictures in the Blind: Does Life-Time Proportion without Visual Experience Matter?

Lebaz, Samuel; Picard, Delphine; Jouffrais, Christophe

doi:10.1007/978-3-642-14075-4_61

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…The age at onset of blindness varied from 0 to 27 (mean value: 8.71, SD: 8.51). The proportion of lifetime without visual experience (Lebaz, Picard, & Jouffrais, 2010) varied from 0.24 (meaning that the participant spent 24% of his life without visual experience) to 1 (meaning that the participant was born blind). The mean value was 0.87 (SD: 0.23).…”

Section: Participantsmentioning

confidence: 99%

Interactivity Improves Usability of Geographic Maps for Visually Impaired People

Brock

Truillet

Oriola

et al. 2014

Human–Computer Interaction

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148

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International audienceTactile relief maps are used by visually impaired people to acquire mental representation of space, but they retain important limitations (limited amount of information, braille text, etc.). Interactive maps may overcome these limitations. However, usability of these two types of maps had never been compared. It is then unknown whether interactive maps are equivalent or even better solutions than traditional raised-line maps. This study presents a comparison of usability of a classical raised-line map vs. an interactive map composed by a multi-touch screen, a raised-line overlay and audio output. Both maps were tested by 24 blind participants. We measured usability as efficiency, effectiveness and satisfaction. Our results show that replacing braille with simple audio-tactile interaction significantly improved efficiency and user satisfaction. Effectiveness was not related to the map type but depended on users' characteristics as well as the category of assessed spatial knowledge. Long-term evaluation of acquired spatial information revealed that maps, whether interactive or not, are useful to build robust survey-type mental representations in blind users. Altogether, these results are encouraging as they show that interactive maps are a good solution for improving map exploration and cognitive mapping in visually impaired people

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Section: Participantsmentioning

confidence: 99%

Interactivity Improves Usability of Geographic Maps for Visually Impaired People

Brock

Truillet

Oriola

et al. 2014

Human–Computer Interaction

Self Cite

148

View full text Add to dashboard Cite

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Haptic identification of raised-line drawings: high visuospatial imagers outperform low visuospatial imagers

Lebaz

Jouffrais

Picard

2011

Psychological Research

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It has been assumed (Lederman et al. 1990, Perception & psychophysics) that a visual imagery process is involved in the haptic identification of raised-line drawings of common objects. The finding of significant correlations between visual imagery ability and performance on picture-naming tasks was taken as experimental evidence in support of this assumption. However, visual imagery measures came from self-report procedures, which can be unreliable. The present study therefore used an objective measure of visuospatial imagery abilities in sighted participants and compared three groups of high, medium and low visuospatial imagers on their accuracy and response times in identifying raised-line drawings by touch. Results revealed between-group differences on accuracy, with high visuospatial imagers outperforming low visuospatial imagers, but not on response times. These findings lend support to the view that visuospatial imagery plays a role in the identification of raised-line drawings by sighted adults.

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触觉二维图像识别的认知机制

Yu¹,

Liu²,

Fu³

et al. 2019

Adv Psychol Sci

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The two-dimension tactile image is the main approach of translating visual information into haptic information. It plays an important role in helping visually impaired people perceive the external world. The recognition of haptic two-dimension image is considered to be based on the "visual translation" process where the haptic input is translated into the visual image. This process is influenced by the graphic geometric feature, perspective, visual experience, capability of visual representation, the process of tactile exploration, training and age. Exploration of the cognitive neural mechanism of two-dimension images haptic recognition is significant for improving the design and usability of two-dimension tactile images.

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Haptic Recognition of Non-figurative Tactile Pictures in the Blind: Does Life-Time Proportion without Visual Experience Matter?

Cited by 6 publications

References 14 publications

Interactivity Improves Usability of Geographic Maps for Visually Impaired People

Interactivity Improves Usability of Geographic Maps for Visually Impaired People

Haptic identification of raised-line drawings: high visuospatial imagers outperform low visuospatial imagers

触觉二维图像识别的认知机制

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