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dc.contributor.authorVikene, Kjetil
dc.contributor.authorSkeie, Geir Olve
dc.contributor.authorSpecht, Karsten
dc.date.accessioned2019-12-19T11:53:47Z
dc.date.available2019-12-19T11:53:47Z
dc.date.issued2019-09-03
dc.PublishedVikene K, Skeie GO, Specht K. Subjective judgments of rhythmic complexity in Parkinson's disease: Higher baseline, preserved relative ability, and modulated by tempo. PLOS ONE. 2019;14(9):e0221752eng
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/1956/21188
dc.description.abstractPrevious research has demonstrated that people with Parkinson’s disease (PD) have difficulties with the perceptual discrimination of rhythms, relative to healthy controls. It is not however clear if this applies only to simpler rhythms (a so called “beat-based” deficit), or if it is a more generalized deficit that also applies to more complex rhythms. Further insight into how people with PD process and perceive rhythm can refine our understanding of the well known problems of temporal processing in the disease. In this study, we wanted to move beyond simple/complex-dichotomy in previous studies, and further investigate the effect of tempo on the perception of musical rhythms. To this end, we constructed ten musical rhythms with a varied degree of complexity across three different tempi. Nineteen people with PD and 19 healthy controls part-took in an internet based listening survey and rated 10 different musical rhythms for complexity and likeability. In what we believe is the first study to do so, we asked for the participants subjective ratings of individual rhythms and not their capacity to directly compare or discriminate between them. We found an overall between-group difference in complexity judgments that was modulated by tempo, but not level of complexity. People with PD rated all rhythms as more complex across tempi, with significant group differences in complexity ratings at 120 and 150bpm, but not at 90bpm. Our analysis found a uniform elevated baseline for complexity judgments in the PD-group, and a strong association between the two groups’ rank-ordering the rhythms for complexity. This indicates a preserved ability to discriminate between relative levels of complexity. Finally, the two groups did not significantly differ in their subjective scoring of likeability, demonstrating a dissimilarity between judgment of complexity and judgment of likeability between the two groups. This indicates different cognitive operations for the two types of judgment, and we speculate that Parkinson’s disease affects judgment of complexity but not judgment of likeability.en_US
dc.language.isoengeng
dc.publisherPLOSeng
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.titleSubjective judgments of rhythmic complexity in Parkinson's disease: Higher baseline, preserved relative ability, and modulated by tempoeng
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2019-10-22T13:09:52Z
dc.description.versionpublishedVersion
dc.rights.holderCopyright 2019 The Author(s)eng
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0221752
dc.identifier.cristin1736977
dc.source.journalPLOS ONE


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