SHAPS

The SHAPS (Snaith-Hamilton Pleasure Scale) is a 14-item self-report scale measuring hedonic tone — the capacity to experience pleasure. Items assess pleasurable responses across four domains: interests and pastimes, social interaction, sensory experiences, and food and drink. Scores range from 0 to 14; higher scores indicate greater anhedonia. A score of ≥3 is commonly used as a clinical threshold. The SHAPS is used in depression research as a targeted measure of anhedonia, a core feature of major depressive disorder and a domain of particular interest in psychedelic trials.