Anatomical and functional differences between the Paced Auditory Serial Addition Test and the Symbol Digit Modalities Test
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http://dx.doi.org/10.1080/13803395.2010.481620 |
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Título
Anatomical and functional differences between the Paced Auditory Serial Addition Test and the Symbol Digit Modalities TestAutoría
Fecha de publicación
2010Editor
Psychology PressISSN
1380-3395Cita bibliográfica
Journal of Clinical and Experimental Neuropsychology (2010), 33, 1, p. 42-50Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.tandfonline.com/doi/full/10.1080/13803395.2010.481620Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The Paced Auditory Serial Addition Test (PASAT) and the Symbol Digit Modalities Test (SDMT) are generally used to detect cognitive impairments in multiple sclerosis patients. Although both seem to be sensitive to the ... [+]
The Paced Auditory Serial Addition Test (PASAT) and the Symbol Digit Modalities Test (SDMT) are generally used to detect cognitive impairments in multiple sclerosis patients. Although both seem to be sensitive to the slow information-processing speed, some results suggest that they do not involve the same cognitive functions. The aim of the present study is to observe possible differences between these tasks to help understand their utility to cognitive assessment. A total of 17 participants were recruited for the study and completed a block-design version of each task. Comparisons between tasks were calculated using an analysis of variance (ANOVA; p < .05, familywise error, FWE, corrected). We observed activations in the left frontal and parietal areas during both tasks; however, the PASAT activated more frontal areas than did the SDMT. These tasks require an efficient transfer of information among large areas. Moreover, the PASAT requires more executive functions to be executed. [-]
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