The effect of set on the resting state in functional imaging: a role for the striatum?

NeuroImage
John J SidtisD A Rottenberg

Abstract

The effects of experimental set on brain activity during the resting state were identified in four positron emission tomography (PET) studies that employed different tasks, identical resting states, and the same subjects. A group of 11, right-handed, normal volunteers participated in four PET studies that shared the same block design in which four resting scans were alternated with four performance scans. The tasks were finger opposition, syllable repetition, sustained phonation, and repetitive lip closure. Each study used only one task and different studies were done on different days. Repeated measures analysis of variance revealed that resting regional cerebral blood flow was significantly affected by the task being studied. This influence varied with task and region. A series of analyses examining left/right regional pairs revealed significant effects of state (rest versus performance) and task and their interaction on most brain regions. The caudate was the only region in which state was not significant either as a main effect or in an interaction with task. Additional analyses revealed that resting and performance blood flow values from a single study were more highly correlated than were resting values across studies. Se...Continue Reading

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Citations

Jun 23, 2009·Proceedings of the National Academy of Sciences of the United States of America·Uri HassonSteven L Small
Apr 27, 2010·Brain and Language·John J SidtisChristopher Gomez
Jul 11, 2009·Brain Research Bulletin·Bernard MazoyerNathalie Tzourio-Mazoyer
Jul 15, 2006·Brain and Language·Diana Van Lancker Sidtis
Jan 31, 2006·NeuroImage·John J SidtisDavid A Rottenberg
Jun 30, 2005·Neuropsychologia·Valerie TreyerArmin Schnider
Nov 12, 2013·Brain and Language·Roger J InghamScott T Grafton
Mar 17, 2019·Brain Sciences·Andrew P LavenderKimitaka Nakazawa
Feb 13, 2015·Journal of Neurophysiology·Kristina Simonyan, Stefan Fuertinger

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