Journal article
A locomotor adaptation including explicit knowledge and removal of postadaptation errors induces complete 24-hour retention
Journal of neurophysiology, Vol.110(4), pp.916-925
08/01/2013
DOI: 10.1152/jn.00770.2012
PMCID: PMC3742972
PMID: 23741038
Abstract
Locomotor patterns are generally very consistent but also contain a high degree of adaptability. Motor adaptation is a short-term type of learning that utilizes this plasticity to alter locomotor behaviors quickly and transiently. In this study, we used a variation of an adaptation paradigm in order to test whether explicit information as well as the removal of the visual error signal after adaptation could improve retention of a newly learned walking pattern 24 h later. On two consecutive days of testing, participants walked on a treadmill while viewing a visual display that showed erroneous feedback of swing times for each leg. Participants were instructed to use this feedback to monitor and adjust swing times so they appeared symmetric within the display. This was achieved by producing a novel interlimb asymmetry between legs. For both legs, we measured adaptation magnitudes and rates and immediate and 24-h retention magnitudes. Participants showed similar adaptation on both days but a faster rate of readaptation on day 2. There was complete retention of adapted swing times on the increasing leg (i.e., no evidence of performance decay over 24 h). Overall, these findings suggest that the inclusion of explicit information and the removal of the visual error signal are effective in inducing full retention of adapted increases in swing time over a moderate (24 h) interval of time.
Details
- Title: Subtitle
- A locomotor adaptation including explicit knowledge and removal of postadaptation errors induces complete 24-hour retention
- Creators
- Sara J. Hussain - University of IowaAngela S. Hanson - University of IowaShih-Chiao Tseng - Texas Woman's UniversitySusanne M. Morton - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of neurophysiology, Vol.110(4), pp.916-925
- DOI
- 10.1152/jn.00770.2012
- PMID
- 23741038
- PMCID
- PMC3742972
- NLM abbreviation
- J Neurophysiol
- ISSN
- 0022-3077
- eISSN
- 1522-1598
- Publisher
- Amer Physiological Soc
- Number of pages
- 10
- Grant note
- R21 NS-067189 / National Institute of Neurological Disorders and Stroke; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Neurological Disorders & Stroke (NINDS) R21NS067189 / NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Neurological Disorders & Stroke (NINDS) Foundation for Physical Therapy.
- Language
- English
- Date published
- 08/01/2013
- Academic Unit
- Health, Sport, and Human Physiology
- Record Identifier
- 9984948141302771
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