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Related terms:
confusion
lethargy
memory disorder
perceptual disorder
psychomotor disorder
intellectual disability
Mental or Behavioral Dysfunction
anhedonia Audio
an·he·do·ni·a [ an-hee-doh-nee-uh ]
Subclass of:
Neurobehavioral Manifestations
Definitions related to anhedonia:
  • An inability to experience pleasure.
    NCI
    U.S. National Cancer Institute, 2021
  • Decreased ability to experience or feel joy or pleasure from any experience that is usually found to be pleasurable by the individual. This applies to any of the senses, e.g., taste, smell, and sound. Food may no longer be tasty, or a musical experience may no longer be enjoyable. Anhedonia also refers to an inability to feel pleasure related to activities that an affected individual previously derived pleasure from.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • Loss of interest in, and withdrawal from, all regular and pleasurable activities. Often associated with depression.
    Sadock's Comprehensive Glossary of Psychiatry and Psychology
    BJ Sadock Titles Press, 2012
  • Reduced ability to experience pleasure.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
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