Effects of cane length and diameter and judgment type on the constant error ratio for estimated height in blindfolded, visually impaired, and sighted participants.
Identifieur interne : 001551 ( Ncbi/Checkpoint ); précédent : 001550; suivant : 001552Effects of cane length and diameter and judgment type on the constant error ratio for estimated height in blindfolded, visually impaired, and sighted participants.
Auteurs : Kuo-Chen Huang [Taïwan] ; Cherng-Yee Leung ; Hsiu-Feng WangSource :
- Perceptual and motor skills [ 0031-5125 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- psychology : Myopia, Vision, Low.
- Canes, Female, Humans, Judgment, Locomotion, Male, Sensory Aids, Sensory Deprivation, Size Perception, Stereognosis, Weight Perception, Young Adult.
Abstract
The purpose of this study was to assess the ability of blindfolded, visually impaired, and sighted individuals to estimate object height as a function of cane length, cane diameter, and judgment type. 48 undergraduate students (ages 20 to 23 years) were recruited to participate in the study. Participants were divided into low-vision, severely myopic, and normal-vision groups. Five stimulus heights were explored with three cane lengths, varying cane diameters, and judgment types. The participants were asked to estimate the stimulus height with or without reference to a standard block. Results showed that the constant error ratio for estimated height improved with decreasing cane length and comparative judgment. The findings were unclear regarding the effect of cane length on haptic perception of height. Implications were discussed for designing environments, such as stair heights, chairs, the magnitude of apertures, etc., for visually impaired individuals.
DOI: 10.2466/PMS.110.2.593-602
PubMed: 20499568
Affiliations:
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pubmed:20499568Le document en format XML
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Participants were divided into low-vision, severely myopic, and normal-vision groups. Five stimulus heights were explored with three cane lengths, varying cane diameters, and judgment types. The participants were asked to estimate the stimulus height with or without reference to a standard block. Results showed that the constant error ratio for estimated height improved with decreasing cane length and comparative judgment. The findings were unclear regarding the effect of cane length on haptic perception of height. Implications were discussed for designing environments, such as stair heights, chairs, the magnitude of apertures, etc., for visually impaired individuals.</div></front></TEI><affiliations><list><country><li>Taïwan</li></country></list><tree><noCountry><name sortKey="Leung, Cherng Yee" sort="Leung, Cherng Yee" uniqKey="Leung C" first="Cherng-Yee" last="Leung">Cherng-Yee Leung</name><name sortKey="Wang, Hsiu Feng" sort="Wang, Hsiu Feng" uniqKey="Wang H" first="Hsiu-Feng" last="Wang">Hsiu-Feng Wang</name></noCountry><country name="Taïwan"><noRegion><name sortKey="Huang, Kuo Chen" sort="Huang, Kuo Chen" uniqKey="Huang K" first="Kuo-Chen" last="Huang">Kuo-Chen Huang</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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