Criteria for Seasonal Pattern Specifier
(cautionary
statement)
Specify if:
With Seasonal Pattern (can be applied to the pattern of Major Depressive
Episodes in Bipolar I Disorder, Bipolar II Disorder, or
Major Depressive Disorder, Recurrent)
A. There has been a regular temporal relationship between the onset of Major
Depressive Episodes in Bipolar I or Bipolar II Disorder or Major Depressive
Disorder, Recurrent, and a particular time of the year (e.g., regular appearance
of the Major Depressive Episode in the fall or winter).
Note: Do not include cases in which there is an obvious effect of
seasonal-related psychosocial stressors (e.g., regularly being unemployed every
winter). Full remissions (or a change from depression
to mania or hypomania) also occur at a characteristic time of the year (e.g.,
depression disappears in the spring).
C. In the last 2 years, two Major Depressive Episodes have occurred that demonstrate the temporal seasonal relationships defined in Criteria A and B, and no nonseasonal Major Depressive Episodes have occurred during that same period.
D. Seasonal Major Depressive Episodes (as described above) substantially outnumber the nonseasonal Major Depressive Episodes that may have occurred over the individual's lifetime.
Reprinted with permission from the Diagnostic
and Statistical Manual of Mental Disorders, fourth Edition. Copyright 1994 American
Psychiatric Association
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