The effects of sustained cognitive task performance on subsequent resting state functional connectivity in healthy young and middle-aged male schoolteachers. Evers, E. A. T., Klaassen, E. B., Rombouts, S. A., Backes, W. H., & Jolles, J. Brain Connectivity, 2(2):102–112, April, 2012.
The effects of sustained cognitive task performance on subsequent resting state functional connectivity in healthy young and middle-aged male schoolteachers [link]Paper  doi  abstract   bibtex   
Previous studies showed that functional connectivity (FC) within resting state (RS) networks is modulated by previous experience. In this study the effects of sustained cognitive performance on subsequent RS FC were investigated in healthy young (25–30 years; n = 15) and middle-aged (50–60 years; n = 14) male schoolteachers. Participants were scanned (functional magnetic resonance imaging [MRI]) after a cognitively demanding and a control intervention (randomized tester-blind within-subject design). Independent component analysis (ICA) was used to decompose the data into spatially independent networks. This study focused on the executive control (ExN), the left and right frontoparietal (FPN), and the default mode network (DMN). The effects of cognitive performance and age were calculated with a full-factorial analysis of variance (ANOVA). A main effect of age was found in the left inferior frontal gyrus for the ExN and in the middle frontal gyrus for the DMN with middle-aged teachers having reduced RS FC. Sustained cognitive performance increased subsequent RS FC between the ExN and a lingual/parahippocampal cluster, and between the left FPN and a right calcarine/precuneus cluster. In these clusters, FC strength correlated positively with the perceived amount of effort during the intervention. Further, sustained cognitive performance affected subsequent RS FC between the ExN and the right temporal superior gyrus differently in young and middle-aged men. The results suggest that effects of age on RS FC are already present at middle age. Sustained cognitive performance increased RS FC between task-positive networks and other brain regions, although a change in RS FC within the networks was not found. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
@article{evers_effects_2012,
	title = {The effects of sustained cognitive task performance on subsequent resting state functional connectivity in healthy young and middle-aged male schoolteachers},
	volume = {2},
	issn = {2158-0014},
	url = {http://search.ebscohost.com/login.aspx?direct=true&db=psyh&AN=2016-09023-006&lang=pt-br&site=ehost-live&scope=site},
	doi = {10.1089/brain.2011.0060},
	abstract = {Previous studies showed that functional connectivity (FC) within resting state (RS) networks is modulated by previous experience. In this study the effects of sustained cognitive performance on subsequent RS FC were investigated in healthy young (25–30 years; n = 15) and middle-aged (50–60 years; n = 14) male schoolteachers. Participants were scanned (functional magnetic resonance imaging [MRI]) after a cognitively demanding and a control intervention (randomized tester-blind within-subject design). Independent component analysis (ICA) was used to decompose the data into spatially independent networks. This study focused on the executive control (ExN), the left and right frontoparietal (FPN), and the default mode network (DMN). The effects of cognitive performance and age were calculated with a full-factorial analysis of variance (ANOVA). A main effect of age was found in the left inferior frontal gyrus for the ExN and in the middle frontal gyrus for the DMN with middle-aged teachers having reduced RS FC. Sustained cognitive performance increased subsequent RS FC between the ExN and a lingual/parahippocampal cluster, and between the left FPN and a right calcarine/precuneus cluster. In these clusters, FC strength correlated positively with the perceived amount of effort during the intervention. Further, sustained cognitive performance affected subsequent RS FC between the ExN and the right temporal superior gyrus differently in young and middle-aged men. The results suggest that effects of age on RS FC are already present at middle age. Sustained cognitive performance increased RS FC between task-positive networks and other brain regions, although a change in RS FC within the networks was not found. (PsycINFO Database Record (c) 2016 APA, all rights reserved)},
	number = {2},
	journal = {Brain Connectivity},
	author = {Evers, Elisabeth A. T. and Klaassen, Elissa B. and Rombouts, Serge A. and Backes, Walter H. and Jolles, Jelle},
	month = apr,
	year = {2012},
	keywords = {Adult, Aging, Analysis of Variance, Brain, Brain Connectivity, Cognition, Cognitive Processes, Faculty, Functional Magnetic Resonance Imaging, Functional Neuroimaging, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Psychomotor Performance, Stroop Test, Surveys and Questionnaires, Teachers, Teaching, Young Adult, aging, default mode network, resting state functional connectivity, sustained cognitive performance, task positive network},
	pages = {102--112}
}
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