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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 3 of 3 1 How difficult is it? How well Adults with Aphasia Perceive Task Demands Christensen, Stephanie Cotton; Wright, Heather Harris. - 2014 BASE Show details 2 Preliminary Evidence for using Heart Rate Variability as a Measure of Cognitive Effort Christensen, Stephanie Cotton; Wright, Heather Harris; Edwards, Tania. - 2012 BASE Show details 3 Cognitive Effort and Aphasia Christensen, Stephanie Cotton; Spahr, Anthony; Wright, Heather Harris. - 2011 Abstract: Some researchers have suggested that impairments of individuals with aphasia on cognitive-linguistic tasks reflect an impaired ability to match effort with task demands (e.g. Murray et al., 1997, Clark & Robin, 1991). However, a direct physiological measure of effort IWA invest during such tasks is lacking. Heart rate variability is a well-studied measure of the stress response and is an indicator of the effort allocated to cognitively demanding tasks (Hansen et al., 2003). This research will utilize HRV to understand the relationship among perceptions of task difficulty, behavioral performance, and effort allocated to a verbal working memory task. URL: http://aphasiology.pitt.edu/2263/1/77-108-1-RV-Christensen.pdf BASE Hide details

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