WFRF:(Petersson Kristoffer)
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Estimated gray matter volume rapidly changes after a short motor task
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- Olivo, Gaia (author)
- Gothenburg University,Göteborgs universitet,Stockholms universitet,Centrum för forskning om äldre och åldrande (ARC), (tills m KI),University of Gothenburg, Sweden,Psykologiska institutionen,Department of Psychology
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- Lövdén, Martin (author)
- Gothenburg University,Göteborgs universitet,Stockholms universitet,Centrum för forskning om äldre och åldrande (ARC), (tills m KI),University of Gothenburg, Sweden,Psykologiska institutionen,Department of Psychology
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- Manzouri, Amirhossein (author)
- Stockholms universitet,Biologisk psykologi,Karolinska Institutet, Sweden
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- Terlau, Laura (author)
- Jenner, Bo (author)
- Jafari, Arian (author)
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- (creator_code:org_t)
- 2022-02-08
- 2022
- English.
- In: Cerebral Cortex. - : Oxford University Press (OUP). - 1047-3211 .- 1460-2199. ; 32:19, s. 4356-4369
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Skill learning induces changes in estimates of gray matter volume (GMV) in the human brain, commonly detectable with magnetic resonance imaging (MRI). Rapid changes in GMV estimates while executing tasks may however confound between- and within-subject differences. Fluctuations in arterial blood flow are proposed to underlie this apparent task-related tissue plasticity. To test this hypothesis, we acquired multiple repetitions of structural T1-weighted and functional blood-oxygen level-dependent (BOLD) MRI measurements from 51 subjects performing a finger-tapping task (FTT; á 2 min) repeatedly for 30–60 min. Estimated GMV was decreased in motor regions during FTT compared with rest. Motor-related BOLD signal changes did not overlap nor correlate with GMV changes. Nearly simultaneous BOLD signals cannot fully explain task-induced changes in T1-weighted images. These sensitive and behavior-related GMV changes pose serious questions to reproducibility across studies, and morphological investigations during skill learning can also open new avenues on how to study rapid brain plasticity.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
Keyword
- finger tapping
- motor training
- MRI
- plasticity
- skill learning
- psykologi
- Psychology
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Olivo, Gaia
- Lövdén, Martin
- Manzouri, Amirho ...
- Terlau, Laura
- Jenner, Bo
- Jafari, Arian
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- Petersson, Sven
- Li, Tie-Qiang
- Fischer, Håkan
- Månsson, Kristof ...
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- MEDICAL AND HEALTH SCIENCES
- MEDICAL AND HEAL ...
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- and Neurosciences
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- SOCIAL SCIENCES
- SOCIAL SCIENCES
- and Psychology
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- Karolinska Institutet
- University of Gothenburg
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