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Summary
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Increased calligraphy practice enhanced the Salience Network in older adults with Subjective Cognitive Decline. This cognitive activity may improve cognitive regulation and maintain brain network integrity.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Gerontology

Background:

  • Previous research indicated cognitive activities like calligraphy improve working memory and Default Mode Network connectivity in older adults with Subjective Cognitive Decline.
  • This study investigates the impact of increased cognitive engagement on other functional brain networks.

Purpose of the Study:

  • To examine the effects of increased calligraphy practice on functional brain networks beyond the Default Mode Network.
  • To assess changes in the Salience Network and Central Executive Network.

Main Methods:

  • A randomized controlled trial with 112 participants (55-75 years) with Subjective Cognitive Decline practicing calligraphy.
  • Participants were assigned to a control group (usual practice) or intervention group (doubled practice for 6 months).
  • Functional MRI assessed functional connectivities within the Salience Network and Central Executive Network before and after the intervention.

Main Results:

  • The intervention group demonstrated strengthened functional connectivities among core Salience Network components (anterior insula, supramarginal gyrus, prefrontal cortex).
  • No significant changes in functional connectivities within the Central Executive Network were observed between groups.
  • Control group showed no significant changes in Salience Network connectivity.

Conclusions:

  • Increased cognitive activity, specifically calligraphy, enhances Salience Network function in integrating and processing stimuli.
  • This suggests a potential non-pharmacological intervention for cognitive regulation and maintaining network integrity in older adults.
  • Further research is warranted to explore long-term effects and underlying mechanisms.