Before revision: A multitude of terms have been used to refer to DDM of varying severities and varieties, including apathy, abulia, akinetic mutism, athymhormia, avolition, amotivation, anhedonia, psychomotor retardation, akrasia, and psychic akinesia (auto-activation deficit or loss of psychic self-activation), among others.
After revision: affective flattening,A multitude of terms have been used to refer to DDM of varying severities and varieties, including apathy, abulia, akinetic mutism, athymhormia, avolition, amotivation, anhedonia, psychomotor retardation, akrasia, and psychic akinesia (auto-activation deficit or loss of psychic self-activation), among others.