Why walkers slip: Shine is not a reliable cue for slippery ground

Amy S. Joh, Karen Adolph, Margot R. Campbel, Marion A. Eppler

Research output: Contribution to journalArticle

Abstract

In a series of four studies, we investigated the visual cues that walkers use to predict slippery ground surfaces and tested whether visual information is reliable for specifying low-friction conditions. In Study 1, 91% of participants surveyed responded that they would use shine to identify upcoming slippery ground. Studies 2-4 confirmed participants' reliance on shine to predict slip. Participants viewed ground surfaces varying in gloss, paint color, and viewing distance under indoor and outdoor lighting conditions. Shine and slip ratings and functional walking judgments were related to surface gloss level and to surface coefficient of friction (COF). However, judgments were strongly affected by surface color, viewing distance, and lighting conditions-extraneous factors that do not change the surface COF. Results suggest that, although walkers rely on shine to predict slippery ground, shine is not a reliable visual cue for friction. Poor visual information for friction may underlie the high prevalence of friction-related slips and falls.

Original languageEnglish (US)
Pages (from-to)339-352
Number of pages14
JournalPerception & Psychophysics
Volume68
Issue number3
StatePublished - 2006

Fingerprint

Walkers
Friction
Cues
gloss
work environment
Lighting
Accidental Falls
Color
rating
Paint
Walking
Slip

ASJC Scopus subject areas

  • Psychology(all)
  • Experimental and Cognitive Psychology

Cite this

Joh, A. S., Adolph, K., Campbel, M. R., & Eppler, M. A. (2006). Why walkers slip: Shine is not a reliable cue for slippery ground. Perception & Psychophysics, 68(3), 339-352.

Why walkers slip : Shine is not a reliable cue for slippery ground. / Joh, Amy S.; Adolph, Karen; Campbel, Margot R.; Eppler, Marion A.

In: Perception & Psychophysics, Vol. 68, No. 3, 2006, p. 339-352.

Research output: Contribution to journalArticle

Joh, AS, Adolph, K, Campbel, MR & Eppler, MA 2006, 'Why walkers slip: Shine is not a reliable cue for slippery ground', Perception & Psychophysics, vol. 68, no. 3, pp. 339-352.
Joh, Amy S. ; Adolph, Karen ; Campbel, Margot R. ; Eppler, Marion A. / Why walkers slip : Shine is not a reliable cue for slippery ground. In: Perception & Psychophysics. 2006 ; Vol. 68, No. 3. pp. 339-352.
@article{2cfb3e302e424a7f9dfa5f054d39168c,
title = "Why walkers slip: Shine is not a reliable cue for slippery ground",
abstract = "In a series of four studies, we investigated the visual cues that walkers use to predict slippery ground surfaces and tested whether visual information is reliable for specifying low-friction conditions. In Study 1, 91{\%} of participants surveyed responded that they would use shine to identify upcoming slippery ground. Studies 2-4 confirmed participants' reliance on shine to predict slip. Participants viewed ground surfaces varying in gloss, paint color, and viewing distance under indoor and outdoor lighting conditions. Shine and slip ratings and functional walking judgments were related to surface gloss level and to surface coefficient of friction (COF). However, judgments were strongly affected by surface color, viewing distance, and lighting conditions-extraneous factors that do not change the surface COF. Results suggest that, although walkers rely on shine to predict slippery ground, shine is not a reliable visual cue for friction. Poor visual information for friction may underlie the high prevalence of friction-related slips and falls.",
author = "Joh, {Amy S.} and Karen Adolph and Campbel, {Margot R.} and Eppler, {Marion A.}",
year = "2006",
language = "English (US)",
volume = "68",
pages = "339--352",
journal = "Attention, Perception, and Psychophysics",
issn = "1943-3921",
publisher = "Springer New York",
number = "3",

}

TY - JOUR

T1 - Why walkers slip

T2 - Shine is not a reliable cue for slippery ground

AU - Joh, Amy S.

AU - Adolph, Karen

AU - Campbel, Margot R.

AU - Eppler, Marion A.

PY - 2006

Y1 - 2006

N2 - In a series of four studies, we investigated the visual cues that walkers use to predict slippery ground surfaces and tested whether visual information is reliable for specifying low-friction conditions. In Study 1, 91% of participants surveyed responded that they would use shine to identify upcoming slippery ground. Studies 2-4 confirmed participants' reliance on shine to predict slip. Participants viewed ground surfaces varying in gloss, paint color, and viewing distance under indoor and outdoor lighting conditions. Shine and slip ratings and functional walking judgments were related to surface gloss level and to surface coefficient of friction (COF). However, judgments were strongly affected by surface color, viewing distance, and lighting conditions-extraneous factors that do not change the surface COF. Results suggest that, although walkers rely on shine to predict slippery ground, shine is not a reliable visual cue for friction. Poor visual information for friction may underlie the high prevalence of friction-related slips and falls.

AB - In a series of four studies, we investigated the visual cues that walkers use to predict slippery ground surfaces and tested whether visual information is reliable for specifying low-friction conditions. In Study 1, 91% of participants surveyed responded that they would use shine to identify upcoming slippery ground. Studies 2-4 confirmed participants' reliance on shine to predict slip. Participants viewed ground surfaces varying in gloss, paint color, and viewing distance under indoor and outdoor lighting conditions. Shine and slip ratings and functional walking judgments were related to surface gloss level and to surface coefficient of friction (COF). However, judgments were strongly affected by surface color, viewing distance, and lighting conditions-extraneous factors that do not change the surface COF. Results suggest that, although walkers rely on shine to predict slippery ground, shine is not a reliable visual cue for friction. Poor visual information for friction may underlie the high prevalence of friction-related slips and falls.

UR - http://www.scopus.com/inward/record.url?scp=33748341457&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748341457&partnerID=8YFLogxK

M3 - Article

C2 - 16900828

AN - SCOPUS:33748341457

VL - 68

SP - 339

EP - 352

JO - Attention, Perception, and Psychophysics

JF - Attention, Perception, and Psychophysics

SN - 1943-3921

IS - 3

ER -