The suppression of scale-free fMRI brain dynamics across three different sources of effort: aging, task novelty and task difficulty

There is growing evidence that fluctuations in brain activity may exhibit scale-free (“fractal”) dynamics. Scale-free signals follow a spectral-power curve of the form P(f ) ∝ f(−β), where spectral power decreases in a power-law fashion with increasing frequency. In this study, we demonstrated that...

Descripción completa

Detalles Bibliográficos
Autores principales: Churchill, Nathan W., Spring, Robyn, Grady, Cheryl, Cimprich, Bernadine, Askren, Mary K., Reuter-Lorenz, Patricia A., Jung, Mi Sook, Peltier, Scott, Strother, Stephen C., Berman, Marc G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976369/
https://www.ncbi.nlm.nih.gov/pubmed/27498696
http://dx.doi.org/10.1038/srep30895

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976369/
https://www.ncbi.nlm.nih.gov/pubmed/27498696
http://dx.doi.org/10.1038/srep30895

Ejemplares similares