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Widespread fMRI BOLD Signal Overactivations during Cognitive Control in Older Adults Are Not Matched by Corresponding Increases in fPET Glucose Metabolism

A common observation in fMRI studies using the BOLD signal is that older adults, compared with young adults, show overactivations, particularly during less demanding tasks. The neuronal underpinnings of such overactivations are not known, but a dominant view is that they are compensatory in nature a...

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Detalles Bibliográficos
Autores principales: Stiernman, Lars, Grill, Filip, McNulty, Charlotte, Bahrd, Philip, Panes Lundmark, Vania, Axelsson, Jan, Salami, Alireza, Rieckmann, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Society for Neuroscience 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10082451/
https://www.ncbi.nlm.nih.gov/pubmed/36868855
http://dx.doi.org/10.1523/JNEUROSCI.1331-22.2023