The symbol digit modalities test and the paced auditory serial addition test involve more than processing speed
Copyright © 2022. Published by Elsevier B.V..
BACKGROUND: Slowed processing speed is the most frequently reported cognitive deficit for people with multiple sclerosis (MS). However, measures used to assess processing speed may also recruit other cognitive abilities. The present objective was to determine the contributions of different cognitive functions to performance on two commonly used processing speed measures: the Symbol Digit Modalities Test (SDMT) and the Paced Auditory Serial Addition Test (PASAT).
METHODS: Adults with relapsing-remitting MS (n = 70) and controls (n = 72) completed the SDMT, PASAT, and multiple measures assessing processing speed, working memory, and learning. Hierarchical regression analyses were used to examine the contributions of MS, processing speed, working memory, learning, and all possible interactions among factors to SDMT and PASAT scores.
RESULTS: Processing speed and working memory generally contributed to performance on the SDMT and PASAT, with learning additionally contributing to SDMT performance. However, significant interactions revealed processing speed did not influence PASAT performance for individuals with high working memory ability whereas processing speed became increasingly more important as working memory declined to average and low levels. Further, processing speed was associated with SDMT performance for patients with MS but not controls.
CONCLUSIONS: These findings support a multifactorial interpretation of the SDMT and PASAT, which facilitates their usefulness as screening measures for cognitive decline but prevents them from identifying which specific cognitive functions are affected.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:68 |
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| Enthalten in: |
Multiple sclerosis and related disorders - 68(2022) vom: 08. Dez., Seite 104229 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Berrigan, Lindsay I [VerfasserIn] |
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| Links: |
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| Themen: |
Cognition |
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| Anmerkungen: |
Date Completed 14.12.2022 Date Revised 21.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.msard.2022.104229 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM34794177X |
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| 245 | 1 | 4 | |a The symbol digit modalities test and the paced auditory serial addition test involve more than processing speed |
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| 500 | |a Date Revised 21.12.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2022. Published by Elsevier B.V. | ||
| 520 | |a BACKGROUND: Slowed processing speed is the most frequently reported cognitive deficit for people with multiple sclerosis (MS). However, measures used to assess processing speed may also recruit other cognitive abilities. The present objective was to determine the contributions of different cognitive functions to performance on two commonly used processing speed measures: the Symbol Digit Modalities Test (SDMT) and the Paced Auditory Serial Addition Test (PASAT) | ||
| 520 | |a METHODS: Adults with relapsing-remitting MS (n = 70) and controls (n = 72) completed the SDMT, PASAT, and multiple measures assessing processing speed, working memory, and learning. Hierarchical regression analyses were used to examine the contributions of MS, processing speed, working memory, learning, and all possible interactions among factors to SDMT and PASAT scores | ||
| 520 | |a RESULTS: Processing speed and working memory generally contributed to performance on the SDMT and PASAT, with learning additionally contributing to SDMT performance. However, significant interactions revealed processing speed did not influence PASAT performance for individuals with high working memory ability whereas processing speed became increasingly more important as working memory declined to average and low levels. Further, processing speed was associated with SDMT performance for patients with MS but not controls | ||
| 520 | |a CONCLUSIONS: These findings support a multifactorial interpretation of the SDMT and PASAT, which facilitates their usefulness as screening measures for cognitive decline but prevents them from identifying which specific cognitive functions are affected | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cognition | |
| 650 | 4 | |a Information processing speed | |
| 650 | 4 | |a Multiple sclerosis | |
| 650 | 4 | |a Neuropsychology | |
| 650 | 4 | |a Paced auditory serial addition test | |
| 650 | 4 | |a Symbol digit modalities test | |
| 700 | 1 | |a LeFevre, Jo-Anne |e verfasserin |4 aut | |
| 700 | 1 | |a Rees, Laura M |e verfasserin |4 aut | |
| 700 | 1 | |a Berard, Jason A |e verfasserin |4 aut | |
| 700 | 1 | |a Francis, Ashley |e verfasserin |4 aut | |
| 700 | 1 | |a Freedman, Mark S |e verfasserin |4 aut | |
| 700 | 1 | |a Walker, Lisa A S |e verfasserin |4 aut | |
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