Utility of peripheral visual cues in planning and controlling adaptive gait

Optometry and Vision Science : Official Publication of the American Academy of Optometry
Valentina GraciJohn G Buckley

Abstract

To determine the relative importance to adaptive locomotion of peripheral visual cues provided by different parts of the visual field. Twelve subjects completed obstacle crossing trials while wearing goggles that provided four visual conditions: upper visual field occlusion, lower visual field occlusion (LO), circumferential peripheral visual field occlusion (CPO), and full vision. The obstacle was either positioned as a lone structure or within a doorframe. Given that subjects completed the task safely without cues from the lower or peripheral visual field, this suggests that subjects used exteroceptive information provided in a feed-forward manner under these conditions. LO and CPO led to increased foot placement distance from the obstacle and to increased toe clearance over the obstacle with a reduced crossing-walking velocity. The increased variability of dependent measures under LO and CPO suggests that exproprioceptive information from the peripheral visual field is generally used to provide online control of lower limbs. The presence of the doorframe facilitated lead-foot placement under LO by providing exproprioceptive cues in the upper visual field. However, under CPO conditions, the doorframe led to a further reductio...Continue Reading

References

May 1, 1988·Neurology·M P Alexander, R L Warren
May 1, 1988·Developmental Psychobiology·W H MeckC L Williams
Jan 1, 1986·Vision Research·J J Koenderink
Apr 16, 1998·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·M ArmandA E Patla
Jun 8, 2004·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Kathleen A TuranoUNKNOWN SEE Project Team
Jun 30, 2004·Investigative Ophthalmology & Visual Science·Karen HeasleyDavid B Elliott
Aug 9, 2005·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Alex Black, Joanne Wood
Jan 20, 2006·Experimental Brain Research·Shirley Rietdyk, Chris K Rhea
Nov 24, 2006·Investigative Ophthalmology & Visual Science·Fernando Vargas-Martín, Eli Peli
Mar 29, 2007·Investigative Ophthalmology & Visual Science·Louise JohnsonDavid B Elliott
May 2, 2007·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Carmen González-AlvarezShahina Pardhan
Aug 29, 2007·Investigative Ophthalmology & Visual Science·Duane R Geruschat, Kathleen A Turano
Sep 28, 2007·Investigative Ophthalmology & Visual Science·Ellen E FreemanSheila K West
Mar 7, 2008·Experimental Brain Research·Daniel S Marigold, Aftab E Patla
Jul 25, 2009·Gait & Posture·Valentina GraciJohn G Buckley
Aug 22, 2009·Journal of the American Geriatrics Society·Jasmine C MenantStephen R Lord

❮ Previous
Next ❯

Citations

Apr 1, 2009·Experimental Brain Research·Matthew A TimmisJohn G Buckley
Jan 11, 2011·Journal of Motor Behavior·Kara M HawkinsWilliam H Gage
Mar 18, 2011·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Alex A BlackJan E Lovie-Kitchin
May 3, 2011·PloS One·John G BuckleyDavid B Elliott
Sep 13, 2012·PloS One·Veronica Miyasike-daSilva, William E McIlroy
Mar 1, 2011·Journal of Biomechanics·Brian W Schulz
Dec 4, 2014·Gait & Posture·Matthew A TimmisKeziah Latham
Jul 30, 2014·Frontiers in Human Neuroscience·Irene AprileAnna Dickmann
Oct 21, 2016·Experimental Brain Research·Veronica Miyasike-daSilva, William E McIlroy
Jan 28, 2017·Scientific Reports·Jung Hung ChienNicholas Stergiou
Feb 13, 2018·The European Journal of Neuroscience·Samuel StuartLynn Rochester
Sep 21, 2017·Attention, Perception & Psychophysics·Casimir J H LudwigDavid Redmill
May 23, 2014·Optometry and Vision Science : Official Publication of the American Academy of Optometry·David B Elliott
Jan 18, 2020·Scientific Reports·Daniel-Robert ChebatMaurice Ptito
Sep 22, 2020·Human Movement Science·Nicholas D A ThomasRebecca Lawson
May 27, 2020·Human Movement Science·Nicholas D A ThomasRebecca Lawson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.