scholarly journals Corrigendum to: Assessment of Cognitive-Motor Performance Costs, Task Prioritization, and Adaptation to Dishwashing Under Increased Demand in Older Women With Arthritis

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Shannon T Mejía ◽  
Karen E Nielsen ◽  
Vineet Raichur ◽  
Alicia G Carmichael ◽  
Eugene Tavares ◽  
...  
2017 ◽  
Vol 1 (suppl_1) ◽  
pp. 420-420
Author(s):  
N. Roncesvalles ◽  
M. Bregendahl

2020 ◽  
Author(s):  
Shannon T Mejía ◽  
Karen E Nielsen ◽  
Vineet Raichur ◽  
Alicia G Carmichael ◽  
Eugene Tavare ◽  
...  

Abstract Background and Objectives Hand arthritis can limit upper-limb instrumental activities of daily living (iADLs) and require the recruitment of additional cognitive and motor resources to support performance. We devised a dual-task protocol for dishwashing to examine cognitive-motor performance costs and prioritizations under increased demands, processes of adaptation, and individual differences in performance costs. Research Design and Methods Sixty women with hand arthritis (age: 60-91) completed a standardized dishwashing protocol. Motor demand was increased via properties of the soap dispenser. Cognitive demand was increased using audial attention and response inhibition tasks. The protocol was completed twice per lab visit on three occasions. Response time and dishwashing time provided measures of cognitive and motor task performance. Prioritization was determined by comparing the magnitude of dual-task cost (DTC) across tasks. Adaptation to the dishwashing protocol and novel dispenser was assessed by change in DTC across lab visits. Individual differences in cognitive and physical ability were assessed with the trail-making B test and gait speed. Results Estimates from linear mixed effects models revealed that response time increased, whereas dishwashing time decreased, during the dual-task study stages. Cognitive-motor prioritization effects were most pronounced among women with lower cognitive and physical ability. Evidence of prioritization and individual differences in DTC diminished across lab visits. Discussion and Implications The pattern of results suggests that older women with arthritis prioritize the motor over cognitive components of dishwashing, a common iADL. Adaptation across lab visits resulted in improved performance, reduced evidence of prioritization, and attenuated differences in DTC across physical and cognitive abilities.


2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Celine Timmermans ◽  
Melvyn Roerdink ◽  
Thomas W. J. Janssen ◽  
Carel G. M. Meskers ◽  
Peter J. Beek

Cognitive-motor interference may contribute to the risk of falling in people with stroke, as may be the associated phenomenon of inappropriate task prioritization. Examining dual-task walking could provide valuable insights as to how to best evaluate and treat walking in people with stroke. This study aimed to examine the effect of different walking environments on cognitive-motor interference and task prioritization in dual-task walking in people with stroke. Using a repeated-measures design, cognitive-motor interference and task prioritization were assessed in 30 stroke survivors, while walking in a plain environment and in two challenging environments that were enriched with either stationary physical context or suddenly appearing projector-augmented context. All three walking environment conditions were performed with and without a concurrent serial-3 subtraction task. We found stronger cognitive-motor interference for the two challenging environments than for the plain walking environment. Cognitive-motor interference did not differ between challenging walking environments, but task prioritization did: motor performance was prioritized more in the environment with physical context than in the environment with projector-augmented context and vice versa for cognitive-task performance. In conclusion, walking environment strongly influenced cognitive-motor interference and task prioritization during dual-task walking in people with stroke.


2000 ◽  
Vol 48 (8) ◽  
pp. 967-970 ◽  
Author(s):  
Xinxin Guo ◽  
Ingmar Skoog ◽  
Michael Matousek ◽  
Lena Larsson ◽  
Sigurdur Palsson ◽  
...  

2019 ◽  
Vol 62 (5) ◽  
pp. 1258-1277 ◽  
Author(s):  
Megan K. MacPherson

PurposeThe aim of this study was to determine the impact of cognitive load imposed by a speech production task on the speech motor performance of healthy older and younger adults. Response inhibition, selective attention, and working memory were the primary cognitive processes of interest.MethodTwelve healthy older and 12 healthy younger adults produced multiple repetitions of 4 sentences containing an embedded Stroop task in 2 cognitive load conditions: congruent and incongruent. The incongruent condition, which required participants to suppress orthographic information to say the font colors in which color words were written, represented an increase in cognitive load relative to the congruent condition in which word text and font color matched. Kinematic measures of articulatory coordination variability and movement duration as well as a behavioral measure of sentence production accuracy were compared between groups and conditions and across 3 sentence segments (pre-, during-, and post-Stroop).ResultsIncreased cognitive load in the incongruent condition was associated with increased articulatory coordination variability and movement duration, compared to the congruent Stroop condition, for both age groups. Overall, the effect of increased cognitive load was greater for older adults than younger adults and was greatest in the portion of the sentence in which cognitive load was manipulated (during-Stroop), followed by the pre-Stroop segment. Sentence production accuracy was reduced for older adults in the incongruent condition.ConclusionsIncreased cognitive load involving response inhibition, selective attention, and working memory processes within a speech production task disrupted both the stability and timing with which speech was produced by both age groups. Older adults' speech motor performance may have been more affected due to age-related changes in cognitive and motoric functions that result in altered motor cognition.


Ob Gyn News ◽  
2011 ◽  
Vol 46 (7) ◽  
pp. 10
Author(s):  
ALICE GOODMAN
Keyword(s):  

Ob Gyn News ◽  
2007 ◽  
Vol 42 (22) ◽  
pp. 1-8
Author(s):  
GREG MUIRHEAD
Keyword(s):  

Ob Gyn News ◽  
2007 ◽  
Vol 42 (24) ◽  
pp. 11
Author(s):  
HEIDI SPLETE
Keyword(s):  

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