1. Introduction
In recent years, the assessment of anhedonia has seen a resurgence
of interest. This has been borne out of findings from
several large scale studies, including the Sequenced Treatment
Alternatives to Relieve Depression (STAR*D) and the Genome
Based Therapeutic Drugs for Depression (GENDEP), which have
demonstrated that loss of interest (anhedonia) is a predictor of
non-response to selective serotonin reuptake inhibitors (SSRIs)
(Uher et al., 2008; 2012). This was also observed in an adolescent
MDD sample, wherein among symptom dimensions, anhedonia