Related Experiment Video
Updated: Sep 15, 2025
Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
Published on: September 8, 2021
Dopamine function in adolescent social anxiety: Insights from neuromelanin-sensitive MRI
Margherita L Calderaro1, Ronan M Cunningham1, Megan Quarmley1
1Department of Psychology, Temple University, Philadelphia, PA, USA.
Background:
Social anxiety typically onsets in adolescence as salience of peer feedback increases. While dopamine system function has been linked to social anxiety, such mechanisms are rarely tested in youth due to the invasiveness of traditional methods. Neuromelanin-sensitive MRI (NM-MRI), a non-invasive proxy measure of central dopamine system function in the substantia nigra (SN), offers a novel approach.
Methods:
Adolescents (N = 43; M = 12.40 ± 1.45 years) with varying levels of social anxiety underwent NM-MRI. Relations between NM signal intensity in SN and symptom severity were assessed. Effect specificity was tested with generalized anxiety symptoms.
Results:
Higher NM signal intensity was associated with more severe symptoms of social (p = .03) but not generalized anxiety (p = .93).
Discussion:
These preliminary results suggest specificity for neural mechanisms associated with adolescent social and generalized anxiety and provide a new avenue for testing symptom etiology and developing targeted treatment.
