Brain Network Correlates of Emotional Aging.

Area of Science:

• Neuroscience
• Psychology
• Aging Research

Background:

• Emotional stability is generally preserved with aging, unlike physical and cognitive functions.
• Understanding the brain mechanisms of emotional aging is crucial for a comprehensive view of the aging process.

Purpose of the Study:

• To investigate the brain network mechanisms associated with emotional aging.
• To explore how functional connectivity within and between brain networks changes with emotional aging.

Main Methods:

• Healthy subjects (aged 20-65) were grouped into emotionally young, intermediate, and old based on emotion recognition task performance.
• Functional brain network connectivity was analyzed using resting-state fMRI data.
• Changes in intra-network and inter-network connectivity were examined in relation to emotional aging groups.

Main Results:

• Emotional aging correlated with improved happiness recognition and decreased negative emotion recognition.
• Decreased intra-network functional connectivity was observed in visual and sensorimotor networks with emotional aging.
• Increased intra-network functional connectivity of the executive control network (ECN) and enhanced inter-network connectivity between the ECN and default mode network were found in emotionally older individuals.

Conclusions:

• Emotional aging is associated with specific alterations in brain network dynamics, distinct from chronological aging.
• The findings suggest increased top-down integration of self-referential information during emotional processing in emotionally older individuals.
• This study provides novel insights into the neural underpinnings of emotional aging from a network perspective.