Gazing into Thin Air: The Dual-Task Costs of Movement Planning and Execution during Adaptive Gait
| Autor: | Ellmers, TJ, Cocks, AJ, Doumas, M, Williams, AM, Young, W |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Physiology Vision Cognitive Neuroscience Movement lcsh:Medicine Social Sciences Walking Fixation Ocular Cognition Elderly Medicine and Health Sciences Psychology Humans Biomechanics Attention lcsh:Science Gait Cognitive Impairment Arithmetic Biological Locomotion Cognitive Neurology lcsh:R Cognitive Psychology Biology and Life Sciences Neurology Age Groups Physical Sciences People and Places Cognitive Science lcsh:Q Sensory Perception Population Groupings Female Mathematics Psychomotor Performance Research Article Neuroscience |
| Zdroj: | PLoS ONE Ellmers, T J, Cocks, A J, Doumas, M, Williams, A M & Young, W R 2016, ' Gazing into Thin Air: The Dual-Task Costs of Movement Planning and Execution during Adaptive Gait ', PloS one, vol. 11, no. 11, e0166063 . https://doi.org/10.1371/journal.pone.0166063 PLoS ONE, Vol 11, Iss 11, p e0166063 (2016) |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0166063 |
| Popis: | © 2016 Ellmers et al. We examined the effect of increased cognitive load on visual search behavior and measures of gait performance during locomotion. Also, we investigated how personality traits, specifically the propensity to consciously control or monitor movements (trait movement`reinvestment'), impacted the ability to maintain effective gaze under conditions of cognitive load. Healthy young adults traversed a novel adaptive walking path while performing a secondary serial subtraction task. Performance was assessed using correct responses to the cognitive task, gaze behavior, stepping accuracy, and time to complete the walking task. When walking while simultaneously carrying out the secondary serial subtraction task, participants visually fixated on task-irrelevant areas `outside' the walking path more often and for longer durations of time, and fixated on task-relevant areas `inside' the walkway for shorter durations. These changes were most pronounced in high-trait-reinvesters. We speculate that reinvestment-related processes placed an additional cognitive demand upon working memory. These increased task-irrelevant `outside' fixations were accompanied by slower completion rates on the walking task and greater gross stepping errors. Findings suggest that attention is important for the maintenance of effective gaze behaviors, supporting previous claims that the maladaptive changes in visual search observed in high-risk older adults may be a consequence of inefficiencies in attentional processing. Identifying the underlying attentional processes that disrupt effective gaze behaviour during locomotion is an essential step in the development of rehabilitation, with this information allowing for the emergence of interventions that reduce the risk of falling. This research was partially supported by grants awarded to author WRY from The Royal Society (grant number: IE131576, URL: www.royalsociety.org) and British Academy (grant number: SG132820, URL: www.britac.ac.uk). The Royal Society (grant number: IE131576, URL: www.royalsociety.org); British Academy (grant number: SG132820, URL: www.britac.ac.uk). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|