The guiding principle of cognitive models of depression is that the wa
y in which an individual interprets an event determines how he/she wil
l respond to that event. In the most well-known cognitive model of dep
ression, Beck and his colleagues propose four specific cognitive proce
sses to explain the phenomenon of depression: The cognitive triad, cog
nitive errors, depressogenic cognitive schemata, and the cognitive-per
sonality vulnerability factors of sociotropy and autonomy. Cognitive t
herapy has been proven effective in treating a wide variety of psychop
athological conditions, and its scope continues to broaden. However, D
obson and Pusch (1993) also raised two fundamental issues with respect
to cognitive therapy. First, they expressed concern about the empiric
al status of cognitive therapy. Second, they expressed concern that ap
plications of cognitive therapy may be pushing beyond the conceptual b
oundaries. This article will provide an updated review of the first is
sue with respect to unipolar depression. The purposes of this article
are to review the empirical status of cognitive therapy for unipolar d
epression, to address theoretical issues regarding cognitive therapy,
and to recommend areas and issues which require further study and cons
ideration.