Dual Task Performance in Parkinson’s Disease

Foley, Jennifer A.; Kaschel, Reiner; Sala, Sergio Della

doi:10.1155/2013/150361

Cited by 13 publications

(13 citation statements)

References 48 publications

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“…The findings of the current study show that, when this calibration procedure is used, and when the dual task involves two tasks that load upon separate cognitive resources, dual tasking ability is unaffected by healthy ageing, but significantly impaired in AD. This is in line with previous studies showing that dual task impairment is a specific marker of AD (Baddeley et al, 1991;Baddeley et al, 1986;Della Sala et al, 1995;Foley et al, 2011;Holtzer et al, 2004;Kaschel et al, 2009;Logie et al, 2004;MacPherson et al, 2004;MacPherson et al, 2007;Morris, 1986;Morris & Baddeley, 1988;Sebastian et al, 2006).…”

Section: Discussionsupporting

confidence: 93%

“…The ability to perform two tasks at the same time, or 'dual task', is unaffected by healthy ageing (Anderson, Bucks, Bayliss & Della Sala, 2011;Baddeley, Logie, Bressi, Della Sala & Spinnler, 1986;Belleville, Rouleau & Caza, 1998;Della Sala, Foley, Beschin, Allerhand & Logie, 2010;Foley, Kaschel, Logie & Della Sala, 2011;Logie, Cocchini, Della Sala & Baddeley, 2004;MacPherson, Della Sala, Logie & Wilcock, 2007;Salthouse, Fristoe, Lineweaver & Coon, 1995), but significantly impaired in Alzheimer's disease (AD; Baddeley, Bressi, Della Sala, Logie & Spinnler, 1991;Baddeley et al, 1986;Della Sala, Baddeley, Papagno & Spinnler, 1995;Foley et al, 2011;Holtzer, Burright & Donovick, 2004;Logie et al, 2004;MacPherson, Della Sala, & Logie, 2004;MacPherson et al, 2007;Morris, 1986;Morris & Baddeley, 1988;Sebastian, Menor & Elosua, 2006;Della Sala et al, 2010;Cocchini, Logie, Della Sala, MacPherson & Baddeley, 2002), with increasing impairment observed as the disease progresses (Baddeley, Baddeley, Bucks & Wilcock, 2001;Baddeley et al, 1991;MacPherson, Parra, Moreno, Lopera & Della Sala, 2012). This impairment has been replicated using several different task combinations, including verbal and visual memory tasks (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…MacPherson et al, 2007), memory and motor tasks (e.g. Foley et al, 2011) and everyday task combinations such as walking and talking (e.g. Cocchini, Della Sala, Logie, Pagani, Sacci & Spinnler, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…It appears that as long as the two tasks do not compete for the same cognitive resources, but rather involve sufficiently different processes that avoid input and output conflicts (such as aural presentation of verbal material for oral recall, and visual presentation of material for a manual response), healthy adults, but not people with AD, can perform the two tasks in parallel with minimal dual task decrement relative to single task performance (Baddeley et al, 1991;Baddeley et al, 1986;Cocchini et al, 2002;Della Sala et al, 1995;Della Sala et al, 2010;Green, Hodges, & 4 Hartley & Little, 1999;Logie et al, 2004). Dual tasking is also unaffected by other disorders that can mimic AD, such as chronic depression in old age (Kaschel, Logie, Kazén & Della Sala, 2010) and Mild Cognitive Impairment (Foley et al, 2011), suggesting that the dual task impairment is specific to AD.…”

Section: Introductionmentioning

confidence: 99%

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No dual-task practice effect in Alzheimer's disease

Foley

Cocchini

Logie

et al. 2014

Memory

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Diagnosis of Alzheimer's disease (AD) requires evidence of progressive decline in cognitive function. However, many tests used to assess cognitive function suffer from considerable practice effects, reducing their reliability. Several studies have reported that the ability to do two things at once, or dual tasking, is impaired in AD, but unaffected by healthy ageing. The apparent specificity of this impairment suggests that this assessment may be particularly useful in the early diagnosis of AD, but the reliability of this assessment remains unknown.Therefore, this study investigated simultaneous performance of digit recall and tracking tasks across six testing sessions, in eight people with AD, eight healthy older adults and eight healthy younger adults. The results found that dual task performance was unaffected by healthy ageing, but significantly impaired in AD, with no effect of repeated exposure. The absence of any improvements in performance despite increased familiarity with the task's demands suggests that not only is the dual task assessment well suited for monitoring progression over time, but also that dual tasking involves a specific cognitive function which is impaired in the AD brain.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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No dual-task practice effect in Alzheimer's disease

Foley

Cocchini

Logie

et al. 2014

Memory

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“…Individuals with PD frequently resort to attentional strategies to maintain the postural stability and standing balance, due to the difficulty in achieving automaticity [7]. Consequently, several studies [8][9][10] have shown that these individuals have serious difficulties in processing simultaneous tasks adequately. In fact, when two tasks are performed at the same time by the individuals, the competition for limited resources results in dual-task interference and deterioration in the performance of one or both tasks.…”

Section: Introductionmentioning

confidence: 99%

Standing balance in individuals with Parkinson's disease during single and dual-task conditions

et al. 2015

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This study aimed to examine the differences in standing balance between individuals with Parkinson's disease (PD) and subjects without PD (control group), under single and dual-task conditions. A cross-sectional study was designed using a non-probabilistic sample of 110 individuals (50 participants with PD and 60 controls) aged 50 years old and over. The individuals with PD were in the early or middle stages of the disease (characterized by Hoehn and Yahr as stages 1-3). The standing balance was assessed by measuring the centre of pressure (CoP) displacement in single-task (eyes-open/eyes-closed) and dual-task (while performing two different verbal fluency tasks). No significant differences were found between the groups regarding sociodemographic variables. In general, the standing balance of the individuals with PD was worse than the controls, as the CoP displacement across tasks was significantly higher for the individuals with PD (p<0.01), both in anteroposterior and mediolateral directions. Moreover, there were significant differences in the CoP displacement based parameters between the conditions, mainly between the eyes-open condition and the remaining conditions. However, there was no significant interaction found between group and condition, which suggests that changes in the CoP displacement between tasks were not influenced by having PD. In conclusion, this study shows that, although individuals with PD had a worse overall standing balance than individuals without the disease, the impact of performing an additional task on the CoP displacement is similar for both groups.

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Dysfunctional action control as a specific feature of Parkinson’s disease

et al. 2014

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Parkinson's disease (PD) is characterised by motor deficits as well as cognitive alterations, particularly concerning frontal lobe control. Here, we were interested in whether executive function is abnormal already early in PD, as well as whether this dysfunction worsens as a part of the dementia in PD. The following groups engaged in tasks addressing action control: PD patients with mild and advanced motor symptoms (aPD) without dementia, PD patients with dementia (PDD), patients with Alzheimer's disease (AD) and healthy subjects (CON). Subjects either had to perform or inhibit button presses upon go and no-go cues, respectively. These cues were preceded by pre-cues, either randomly instructive of right or left hand preparation (switch condition), or repetitively instructive for one side only (non-switch condition). PDD and aPD omitted more go responses than CON. Furthermore, PDD disproportionally committed failures upon no-go cues compared to CON. In the non-switch condition, PDD performed worse than AD, whose deficits increased to the level of PDD in the switch condition. Over all PD patients, task performance correlated with disease severity. Under the switch condition, task performance was low in both PDD and AD. In the non-switch condition, this also held true for advanced PD patients (with and without dementia), but not for AD. Thus, the deficits evident in PDD appear to develop from imbalanced inhibitory-to-excitatory action control generally inherent to PD. These results specify the concept of dysexecution in PD and differentiate the cognitive profile of PDD from that of AD patients.

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Dual Task Performance in Parkinson’s Disease

Cited by 13 publications

References 48 publications

No dual-task practice effect in Alzheimer's disease

No dual-task practice effect in Alzheimer's disease

Standing balance in individuals with Parkinson's disease during single and dual-task conditions

Dysfunctional action control as a specific feature of Parkinson’s disease

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