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Is the size of the useful field of view affected by postural demands associated with standing and stepping.pdf
Neuroscience Letters 566 (2014) 27–31
Contents lists available at ScienceDirect
Neuroscience Letters
journal homepage: /locate/neulet
Is the size of the useful ?eld of view affected by postural demands associated with standing and stepping?
James G. Reed-Jones a, Rebecca J. Reed-Jones a,?, Mark A. Hollands b
a Department of Applied Human Sciences, Faculty of Science, University of Prince Edward Island, Canada b Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
highlights
? Examined the effects of posture on useful ?eld of view (UFOV). ? UFOV was measured while seated, standing and stepping in place. ? Divided-attention performance signi?cantly reduced while stepping in place. ? Results suggest size of UFOV declines with postural demand. ? Important practical implications for testing UFOV.
article info
Article history: Received 25 September 2013 Received in revised form 31 January 2014 Accepted 18 February 2014
Keywords: Useful ?eld of view Postural control Visual attention Cognitive load Divided-attention
abstract
The useful ?eld of view (UFOV) is the visual area from which information is obtained at a brief glance. While studies have examined the effects of increased cognitive load on the visual ?eld, no one has speci?cally looked at the effects of postural control or locomotor activity on the UFOV. The current study aimed to examine the effects of postural demand and locomotor activity on UFOV performance in healthy young adults. Eleven participants were tested on three modi?ed UFOV tasks (central processing, peripheral processing, and divided-attention) while seated, standing, and stepping in place. Across all postural conditions, participants showed no difference in their central or peripheral processing. However, in the divided-attention task (reporting the letter in central vision and target location in peripheral vision amongst distracter items) a main effect of posture condition on peripheral targ
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