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Brain microstructural properties related to subjective well-being: diffusion tensor imaging analysis.

Chiaki Terao Maeda1, Hikaru Takeuchi2, Rui Nouchi3,4

  • 1Department of Nuclear Medicine and Radiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan.

Social Cognitive and Affective Neuroscience
|May 14, 2021
PubMed
Summary
This summary is machine-generated.

Higher subjective well-being (SWB) in healthy adults is linked to distinct brain microstructural properties. Specifically, greater SWB correlates with reduced mean diffusivity (MD) in key brain regions.

Keywords:
diffusion tensor imagingdopaminergic systemmean diffusivitymotivationsubjective well-being

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Area of Science:

  • Neuroscience
  • Psychology
  • Medical Imaging

Background:

  • Mental health research often focuses on negative aspects, with less attention to positive indicators like subjective well-being (SWB).
  • Understanding the neural underpinnings of individual differences in SWB is crucial for a comprehensive view of mental health.
  • Diffusion tensor imaging (DTI) offers insights into brain microstructural properties, but its relation to SWB is not well-established.

Purpose of the Study:

  • To investigate the association between brain microstructural properties, measured by DTI, and levels of subjective well-being (SWB).
  • To explore the neural mechanisms related to individual variations in positive mental health.

Main Methods:

  • Utilized voxel-based analysis on diffusion tensor imaging (DTI) data from healthy young adults.
  • Assessed subjective well-being (SWB) using a standardized questionnaire.
  • Examined relationships between mean diffusivity (MD) and fractional anisotropy (FA) with SWB scores.

Main Results:

  • Higher levels of subjective well-being (SWB) were significantly associated with lower mean diffusivity (MD).
  • This association was observed in brain regions including the right putamen, insula, globus pallidus, thalamus, and caudate nucleus.
  • Individual differences in SWB correlate with microstructural variations in specific brain areas.

Conclusions:

  • Subjective well-being (SWB) is associated with measurable differences in brain microstructural properties.
  • These findings suggest a neural basis for individual variations in positive mental health.
  • The study highlights the potential of DTI in understanding the neurobiology of well-being.