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Dopaminergic medication alters auditory distractor processing in Parkinson's diseaseGeorgiev, Dejan ...Parkinson's disease (PD) patients show signs of cognitive impairment, such as executive dysfunction, working memory problems and attentional disturbances, even in the early stages of the disease. ... Though motor symptoms of the disease are often successfully addressed by dopaminergic medication, it still remains unclear, how dopaminergic therapy affects cognitive function. The main objective of this study was to assess the effect of dopaminergic medication on visual and auditory attentional processing. 14 PD patients and 13 matched healthy controls performed a three-stimulus auditory and visual oddball task while their EEG was recorded. The patients performed the task twice, once on- and once off-medication. While the results showed no significant differences between PD patients and controls, they did reveal a significant increase in P3 amplitude on- vs. off-medication specific to processing of auditory distractors and no other stimuli. These results indicate significant effect of dopaminergic therapy on processing of distracting auditory stimuli. With a lack of between group differences the effect could reflect either 1) improved recruitment of attentional resources to auditory distractors; 2) reduced ability for cognitive inhibition of auditory distractors; 3) increased response to distractor stimuli resulting in impaired cognitive performance; or 4) hindered ability to discriminate between auditory distractors and targets. Further studies are needed to differentiate between these possibilities.Source: Acta psychologica. - ISSN 0001-6918 (156, 2015, str. 45-56)Type of material - article, component part ; adult, seriousPublish date - 2015Language - englishCOBISS.SI-ID - 2121132
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Georgiev, Dejan | 30915 |
Jahanshahi, Marjan | ![]() |
Dreo, Jurij | ![]() |
Čuš, Anja | 30960 |
Pirtošek, Zvezdan, 1956- | 05380 |
Repovš, Grega | 17893 |
Source: Personal bibliographies
and: SICRIS
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