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Neural bases underlying the association between balanced time perspective and trait anxiety
Huimin Wu1, Renhui Zhou1, Le Zhao2
1The Lab of Mental Health and Social Adaptation, Faculty of Psychology, Southwest University, Chongqing, China; Research Center of Mental Health Education, Southwest University, Chongqing, China.
Behavioural Brain Research
|November 9, 2018
Summary
Balanced time perspective (BTP) is linked to lower trait anxiety. Brain imaging reveals the parahippocampal gyrus (PHG) and its connections are key neural substrates for this association.
Area of Science:
- Neuroscience
- Psychology
Background:
- Balanced time perspective (BTP) is crucial for psychological well-being.
- Trait anxiety is a significant factor in mental health.
Purpose of the Study:
- To investigate the association between BTP and trait anxiety.
- To identify the neural substrates (brain structures and connections) underlying this relationship using neuroimaging techniques.
Main Methods:
- 140 college students underwent assessments for deviation from BTP (DBTP) and trait anxiety.
- Voxel-based morphometry (VBM) analyzed gray matter volume (GMV).
- Resting-state functional connectivity (RSFC) examined brain network interactions.
Main Results:
- BTP significantly predicted trait anxiety.
- DBTP correlated with GMV in the parahippocampal gyrus (PHG) and precuneus.
- Trait anxiety correlated with GMV in the PHG.
- Mediation analysis indicated the PHG's GMV and its connectivity with the posterior cingulate cortex (PCC) and cuneus mediate the BTP-anxiety link.
Conclusions:
- The structural characteristics of the PHG and its functional connectivity with the PCC and cuneus are potential neural bases for the association between BTP and trait anxiety.
- Findings highlight the role of temporal cognition in anxiety regulation.
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