1. Introduction
GAD, Anxiety, anxiety, anxiety disorders, chronic affective disorder
DISORDER, DISORDER
Generalised Anxiety Disorder (GAD) is a prevalent, chronic mental health disorder. The measurement of regional brain gamma-aminobutyric acid (GABA) offers insight into its role in anxiety and is a potential biomarker for treatment response. Research literature suggests Generalised Anxiety Disorder (GAD) is a clinically challenging, prevalent, and chronic affective disorder associated with functional disablement, frequent comorbidities, and high psychological distress [GAD remains the most understudied of the anxiety disorders [