INTERNAL VERSUS EXTERNAL CUES AND THE CONTROL OF ATTENTION IN PARKINSON'S DISEASE
Abstract
In recent years, several attempts have been made to characterize the nature of the cognitive deficits shown by patients with Parkinson's disease. It has been suggested variously that they have difficulty in switching cognitive set, in performing effortful (or controlled) as opposed to automatic tasks, or that their impairment is found in tasks which maximize the amount of 'self-directed task specific planning'. It is proposed that this latter distinction may be reformulated in terms of the degree of internal versus external attentional control which is required by the task. An experiment is described which attempted to manipulate this parameter. A version of the Stroop colour-word test was used, in which the words 'red' and 'green' were presented in the complementary coloured 'ink'. Subjects responded either to the colour of the ink in which the word was written or the colour named by the word. The relevant attribute changed at intervals during the course of the experiment. In one condition, the relevant stimulus attribute was cued before each trial. In another condition, subjects had to remember which attribute was currently relevant. Results revealed that patients with Parkinson's disease were impaired mainly on the second version of the task which required internal attentional control. The results are discussed in relation to the models of Working Memory (Baddeley, 1986), and attentional control (Norman and Shallice, 1980). Exploration of these models leads to the formulat…
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Some individuals with PD are impaired in decision-making tasks that require internal attentional control.
“Previous studies have shown that some individuals with PD are impaired in decision-making tasks that require internal attentional control (Brown & Marsden, 1988; Dirnberger & Jahanshahi, 2013), which is posited to reflect a resource capacity issue.”
From Perception of Physical Demand, Mental Demand, and Performance: A Comparison of Two Voice Interventions for Parkinson's Disease (2022) · cites this paper as Brown & Marsden, 1988
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- Authors
- BROWN, R. G., & MARSDEN, C. D.
- Affiliations
- Parkinson's UK (GB)
- Corresponding author
- BROWN, R.G.
- ORCID
- BROWN, R.G.
- Venue
- Brain
- Publisher
- Oxford University Press (OUP)
- Published
- 1988
- Volume
- 111
- Issue
- 2
- Pages
- 323-345
- ISSN
- 0006-8950 (ISSN-L)
- 1460-2156
- OpenAlex
- W2107061898
- Cited by
- 552
- References
- 5
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 7 · 2021: 8 · 2020: 4 · 2019: 32 · 2018: 7 · 2017: 23 · 2016: 10 · 2015: 14 · 2014: 9 · 2013: 24 · 2012: 16
- FWCI
- 6.81
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Brain (publishedVersion)
- PubMed (publishedVersion)
- Research Portal (King's College London) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
- Keywords
- Parkinson's disease, attentional control, internal cues, external cues, Stroop task, working memory, supervisory attentional system, attentional resources, cognitive impairment
- MeSH terms
- Attention, Cues, Humans, Neuropsychological Tests, Parkinson Disease, Reaction Time
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