Decomposing response times in Williams syndrome in separate cognitive processes

Dimitris Katsimpokis; Leendert van Maanen; Spyridoula Varlokosta

doi:10.1080/23273798.2021.1985151

Decomposing response times in Williams syndrome in separate cognitive processes

Dimitris Katsimpokis, Leendert van Maanen, Spyridoula Varlokosta

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Williams Syndrome (WS) is a rare neurodevelopmental disorder of genetic origin. The syndrome is characterised by a selective set of deficits in a number of cognitive domains. In spite of a wealth of studies, response times (RTs) of WS have attracted little attention. In the present study, we fill this gap by analysing data from a receptive vocabulary task using the Diffusion Decision Model (DDM). Our results show that the speed of accumulation, decision threshold and non-decision time parameters of WS individuals are similar to these of typically developing 5-year-old preschoolers. In addition, WS verbal intelligence scores were associated with the speed of accumulation of lexical information. Finally, the performance of WS and preschooler individuals was correlated across the vocabulary task and an additional orientation discrimination task only at the group but not at the individual level; therefore, pointing to domain-specific lexical and perceptual processing in WS.

Original language	English
Pages (from-to)	440-456
Number of pages	17
Journal	Language, Cognition and Neuroscience
Volume	37
Issue number	4
Early online date	2021
DOIs	https://doi.org/10.1080/23273798.2021.1985151
Publication status	Published - 2022

Bibliographical note

Funding Information:
We would like to thank all children and their families for participating in the study, as well as the “Aghia Sofia” General Children's Hospital and Dr. Eleni Frissira for granting us access to the WS participants. We would like to thank Ioanna Kolokytha for helping us with data collection. Also, thanks to Kevin Trutmann for his helpful comments on an earlier draft of the paper. Parts of the paper were presented in the 9th Athens Postgraduate and PhD Candidate conference in October 2017 in Greece. We also acknowledge the Onassis Foundation for funding the first author through its Scholarship programme for Hellenes. All errors are our own.

Publisher Copyright:
© 2021 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

Williams syndrome
diffusion decision model
receptive vocabulary
orientation discrimination
atypical development

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10.1080/23273798.2021.1985151

Decomposing response times in Williams syndrome in separate cognitive processesFinal published version, 2.28 MBLicence: Taverne

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title = "Decomposing response times in Williams syndrome in separate cognitive processes",

abstract = "Williams Syndrome (WS) is a rare neurodevelopmental disorder of genetic origin. The syndrome is characterised by a selective set of deficits in a number of cognitive domains. In spite of a wealth of studies, response times (RTs) of WS have attracted little attention. In the present study, we fill this gap by analysing data from a receptive vocabulary task using the Diffusion Decision Model (DDM). Our results show that the speed of accumulation, decision threshold and non-decision time parameters of WS individuals are similar to these of typically developing 5-year-old preschoolers. In addition, WS verbal intelligence scores were associated with the speed of accumulation of lexical information. Finally, the performance of WS and preschooler individuals was correlated across the vocabulary task and an additional orientation discrimination task only at the group but not at the individual level; therefore, pointing to domain-specific lexical and perceptual processing in WS.",

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author = "Dimitris Katsimpokis and {van Maanen}, Leendert and Spyridoula Varlokosta",

note = "Funding Information: We would like to thank all children and their families for participating in the study, as well as the “Aghia Sofia” General Children's Hospital and Dr. Eleni Frissira for granting us access to the WS participants. We would like to thank Ioanna Kolokytha for helping us with data collection. Also, thanks to Kevin Trutmann for his helpful comments on an earlier draft of the paper. Parts of the paper were presented in the 9th Athens Postgraduate and PhD Candidate conference in October 2017 in Greece. We also acknowledge the Onassis Foundation for funding the first author through its Scholarship programme for Hellenes. All errors are our own. Publisher Copyright: {\textcopyright} 2021 Informa UK Limited, trading as Taylor & Francis Group.",

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Decomposing response times in Williams syndrome in separate cognitive processes

Abstract

Bibliographical note

Keywords

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