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Regional homogeneity of resting state fMRI signals predicts Stop signal task performance.

It has been suggested that resting-state functional magnetic resonance imaging (RS-fMRI) is a promising tool to study the relation between spontaneous brain activity and behavioral performance. However, little is known about whether the local synchronization of spontaneous brain activity could predi... Full description

Journal Title: NeuroImage March 2012, Vol.60(1), pp.539-544
Main Author: Tian, Lixia
Other Authors: Ren, Juejing , Zang, Yufeng
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1095-9572 ; DOI: 10.1016/j.neuroimage.2011.11.098
Link: http://search.proquest.com/docview/922500047/?pq-origsite=primo
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title: Regional homogeneity of resting state fMRI signals predicts Stop signal task performance.
format: Article
creator:
  • Tian, Lixia
  • Ren, Juejing
  • Zang, Yufeng
subjects:
  • Brain–Physiology
  • Humans–Physiology
  • Magnetic Resonance Imaging–Physiology
  • Male–Physiology
  • Predictive Value of Tests–Physiology
  • Reaction Time–Physiology
  • Rest–Physiology
  • Task Performance and Analysis–Physiology
  • Young Adult–Physiology
ispartof: NeuroImage, March 2012, Vol.60(1), pp.539-544
description: It has been suggested that resting-state functional magnetic resonance imaging (RS-fMRI) is a promising tool to study the relation between spontaneous brain activity and behavioral performance. However, little is known about whether the local synchronization of spontaneous brain activity could predict response inhibition. In the current study, we used regional homogeneity (ReHo) to measure the local synchronization of RS-fMRI signals, and then investigated the relationship between ReHo and individual differences in response inhibition, as evaluated by the stop signal reaction time (SSRT) in a Stop signal task. The results showed that ReHo of RS-fMRI signals could successfully predict SSRT. Specifically, positive ReHo-SSRT correlations were observed in the bilateral inferior frontal cortex (IFC) and three critical components of the default mode network (DMN), and negative ReHo-SSRT correlations were observed in the rolandic area/posterior insula and the bilateral middle occipital cortex. The present results indicate the possible influence of the IFC and rolandic area/posterior insula on the efficiency of response inhibition, and demonstrate the importance of the DMN for the efficiency of cognitive task performance. Highlights► Individual variation in inhibition was analyzed based on resting fMRI (RS-fMRI). ► Inhibition abilities were evaluated by the stop signal reaction time (SSRT). ► The spontaneous activity was evaluated by regional homogeneity (ReHo) of RS-fMRI. ► Significant ReHo-SSRT relationships were found in the IFC and default mode network. ► The IFC and default mode network may influence the efficiency of inhibition.
language: eng
source:
identifier: E-ISSN: 1095-9572 ; DOI: 10.1016/j.neuroimage.2011.11.098
fulltext: fulltext
issn:
  • 10959572
  • 1095-9572
url: Link


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titleRegional homogeneity of resting state fMRI signals predicts Stop signal task performance.
creatorTian, Lixia ; Ren, Juejing ; Zang, Yufeng
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identifierE-ISSN: 1095-9572 ; DOI: 10.1016/j.neuroimage.2011.11.098
subjectBrain–Physiology ; Humans–Physiology ; Magnetic Resonance Imaging–Physiology ; Male–Physiology ; Predictive Value of Tests–Physiology ; Reaction Time–Physiology ; Rest–Physiology ; Task Performance and Analysis–Physiology ; Young Adult–Physiology
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descriptionIt has been suggested that resting-state functional magnetic resonance imaging (RS-fMRI) is a promising tool to study the relation between spontaneous brain activity and behavioral performance. However, little is known about whether the local synchronization of spontaneous brain activity could predict response inhibition. In the current study, we used regional homogeneity (ReHo) to measure the local synchronization of RS-fMRI signals, and then investigated the relationship between ReHo and individual differences in response inhibition, as evaluated by the stop signal reaction time (SSRT) in a Stop signal task. The results showed that ReHo of RS-fMRI signals could successfully predict SSRT. Specifically, positive ReHo-SSRT correlations were observed in the bilateral inferior frontal cortex (IFC) and three critical components of the default mode network (DMN), and negative ReHo-SSRT correlations were observed in the rolandic area/posterior insula and the bilateral middle occipital cortex. The present results indicate the possible influence of the IFC and rolandic area/posterior insula on the efficiency of response inhibition, and demonstrate the importance of the DMN for the efficiency of cognitive task performance. Highlights► Individual variation in inhibition was analyzed based on resting fMRI (RS-fMRI). ► Inhibition abilities were evaluated by the stop signal reaction time (SSRT). ► The spontaneous activity was evaluated by regional homogeneity (ReHo) of RS-fMRI. ► Significant ReHo-SSRT relationships were found in the IFC and default mode network. ► The IFC and default mode network may influence the efficiency of inhibition.
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