Regional gene expression patterns are associated with task-specific brain activation during reward and emotion...

Area of Science:

• Neuroscience
• Genomics
• Psychiatry

Background:

• Neuropsychiatric disorders like depression show altered brain activity and gene expression.
• Understanding the spatial relationship between these can inform targeted therapies.

Purpose of the Study:

• To investigate the correlation between human transcriptome data and functional magnetic resonance imaging (fMRI) brain activation maps.
• To identify specific gene expression patterns associated with distinct cognitive tasks.

Main Methods:

• Correlated whole-brain transcriptome data with fMRI activation maps in healthy subjects.
• Analyzed activation patterns during emotional face recognition and monetary reward tasks.
• Cross-referenced identified genes with genome-wide association studies for major depressive disorder.

Main Results:

• Emotional face recognition task activation correlated with genes involved in cellular transport.
• Monetary reward task activation linked to genes in cellular localization, metabolism, translation, and synapse regulation.
• TCF4 and PAX6 identified as master regulators involved in emotion and reward processing, overlapping with major depressive disorder risk genes.

Conclusions:

• Stable relationships between spatial gene expression and fMRI data were identified.
• These findings may advance imaging transcriptomics for studying brain function and disorders.
• The study highlights the role of specific gene regulators in emotion and reward circuitry.