Direct replication of task-dependent neural activation patterns during sadness introspection in two independent...

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Replication of functional neuroimaging is crucial for understanding human social cognition.
• Introspection, or reflecting on one's own feelings, is vital for social and emotional functioning.
• Adolescent brain development impacts social cognition, but introspection's neural basis requires validation.

Purpose of the Study:

• To investigate if introspection on sadness activates and replicates similar brain regions in two independent adolescent samples.
• To confirm the generalizability of neural correlates of introspection during adolescence.

Main Methods:

• Two independent adolescent samples (N=156 and N=119) underwent functional magnetic resonance imaging (fMRI).
• Participants completed the Emotion Regulation Questionnaire (ERQ) and performed a facial emotion-processing task.
• Whole-brain activation patterns during sadness introspection were analyzed and compared between samples.

Main Results:

• Both samples exhibited similar whole-brain activation patterns during sadness introspection and a non-emotional task.
• Neural responsivity replicated in socio-emotional regions (mPFC, PCC, MTG, TPJ) and attention networks.
• Activation patterns were not correlated with Emotion Regulation Questionnaire scores.

Conclusions:

• Robust replication of neural engagement during sadness introspection was demonstrated in two independent adolescent samples.
• Findings support the role of specific brain networks in adolescent introspection and social cognition.
• The study validates the generalizability of neural correlates for introspection in this age group.