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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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Brain functional connectivity changes in children that differ in impulsivity temperamental trait.

Alberto Inuggi1, Ernesto Sanz-Arigita2, Carmen González-Salinas3

  • 1Basque Center for Cognition, Brain and Language San Sebastián, Spain.

Frontiers in Behavioral Neuroscience
|May 17, 2014
PubMed
Summary
This summary is machine-generated.

Impulsivity in children is linked to brain connectivity. Higher impulsivity in children correlates with altered functional connectivity in the default mode network, impacting brain networks.

Keywords:
MRIdefault mode networkfunctional connectivityimpulsivity traitrs-MRI

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Behavioral Genetics

Background:

  • Impulsivity is a key personality trait with implications for adaptive functioning.
  • Altered impulsivity patterns in typically developing children are a risk factor for behavioral issues.
  • Continuous transitions characterize both pathological and non-pathological states, necessitating investigation into personality-brain dynamics.

Purpose of the Study:

  • To investigate the link between personality (impulsivity) and brain dynamics in typically developing children.
  • To explore how trait impulsivity modulates functional connectivity within the default mode network (DMN) and its relationship with other brain networks.

Main Methods:

  • Utilized resting-state functional magnetic resonance imaging (fMRI) to measure brain functional connectivity in typically developing children.
  • Correlated impulsivity scores, obtained from parental questionnaires, with functional connectivity data.
  • Identified DMN clusters (posterior cingulate cortex, right angular gyrus) modulated by impulsivity and assessed whole-brain connectivity patterns.

Main Results:

  • Two DMN clusters (posterior cingulate cortex and right angular gyrus) showed negative correlation with impulsivity scores.
  • Trait impulsivity modulated the anti-phasic relationship between the DMN and action-related networks.
  • High-impulsivity children exhibited a reduced anti-phasic relation between the DMN and action-related networks.

Conclusions:

  • This study provides the first evidence that trait impulsivity influences resting-state brain network functional connectivity in typically developing children.
  • Parental reports of impulsivity as a personality trait are linked to measurable differences in brain functional connectivity.
  • The findings bridge developmental approaches using questionnaires with behavioral neuroscience, linking personality traits to brain function and behavior.