Short-term SSRI use alters brain connectivity in anxious individuals in unexpected ways
A new brain imaging study reveals that short-term use of the antidepressant escitalopram actually increases connectivity between key emotion-processing brain regions in anxious individuals, contradicting previous theories about how these drugs physically relieve anxiety.
A recent study investigated the effects of short-term escitalopram use on brain connectivity in anxious individuals. The research, published in the Journal of Affective Disorders, involved 45 participants with anxiety disorders and 96 healthy controls. All participants underwent functional magnetic resonance imaging (fMRI) while completing an emotional faces task.
The study found that after 2-3 weeks of escitalopram administration, there was an unexpected increase in amygdala-dorsomedial cortex connectivity in anxious individuals during happy face processing, contrary to the researchers' hypothesis. This unexpected finding suggests that SSRIs may have a different impact on brain connectivity in anxiety disorders than previously thought, and further research is needed to clarify the neural mechanisms involved.
Written by urgent.news from PsyPost's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
