episodes, Criterion E for attenuated psychosis syndrome may not be met, and a diagnosis
of substance/medication-induced ps ychotic disorder may be preferred.
Attention-deficit/hyperactivity disorder. A history of attentional impairment does not
exclude a current attenuated psychosis syndro me diagnosis. Earlier attentional impair-
ment may be a prodromal condit ion or comorbid at tention-deficit/hype ractivity disorder.
Comorbidity
Individuals with attenuated psychosis syndrome often experience anxiety and/or depres-
sion. Some individuals with an attenuated psychosis syndrome diagnosis will progress to
another diagnosis, including anxi ety, depressive, bipolar, and personality disorders. In such
cases, the psychopathology asso ciated with the attenuated psychosis syndrome diagnosis is
reconceptualized as the prodromal phase of another disorder, not a comorbid condition.
Depressive Episodes With Short-Duration Hypomania
Proposed Criteria 
Lifetime experience of at least one majo r depressive episode meeting the following
criteria:
A. Five (or more) of the following criteria have been present during the same 2-week pe-
riod and represent a change from previous functioning; at least one of the symptoms
is either (1) depressed mood or (2) loss of interest or pleasure. ( Note:  Do not include
symptoms that are clearly attributable to a medical condition.)
1. Depressed mood most of the day, nearly every day, as indicated by either subjec-
tive report (e.g., feels sad, empty, or hopeless) or observation made by others (e.g.,
appears tearful). ( Note:  In children and adolescents, can be irritable mood.)
2. Markedly diminished interest or pleasure in al l, or almost all, activities most of the