Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Bipolar disorders beyond major depression and euphoric mania
- 2 Emerging concepts of mixed states: a longitudinal perspective
- 3 Rapid-cycling bipolar disorder
- 4 Bipolar I and bipolar II: a dichotomy?
- 5 Recurrent brief depression as an indicator of severe mood disorders
- 6 Atypical depression and its relation to bipolar spectrum
- 7 Agitated depression: spontaneous and induced
- 8 Schizoaffective mixed states
- 9 Acute and transient psychotic disorder: an atypical bipolar disorder?
- 10 Bipolar disorder in children and adolescents
- 11 Atypical features of bipolarity in old age
- 12 Comorbidity in mixed states and rapid-cycling forms of bipolar disorders
- 13 Challenges in the genetics of bipolar disorder
- 14 Biological aspects of rapid-cycling and mixed states
- 15 The treatment of bipolar mixed states
- 16 The use of atypical antipsychotic agents in the treatment of diagnostic subgroups of bipolar disorder: mixed and pure states, psychotic and non-psychotic
- 17 Investigational strategies: treatment of rapid cycling, mixed episodes, and atypical bipolar mood disorder
- Index
- References
4 - Bipolar I and bipolar II: a dichotomy?
Published online by Cambridge University Press: 10 August 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Bipolar disorders beyond major depression and euphoric mania
- 2 Emerging concepts of mixed states: a longitudinal perspective
- 3 Rapid-cycling bipolar disorder
- 4 Bipolar I and bipolar II: a dichotomy?
- 5 Recurrent brief depression as an indicator of severe mood disorders
- 6 Atypical depression and its relation to bipolar spectrum
- 7 Agitated depression: spontaneous and induced
- 8 Schizoaffective mixed states
- 9 Acute and transient psychotic disorder: an atypical bipolar disorder?
- 10 Bipolar disorder in children and adolescents
- 11 Atypical features of bipolarity in old age
- 12 Comorbidity in mixed states and rapid-cycling forms of bipolar disorders
- 13 Challenges in the genetics of bipolar disorder
- 14 Biological aspects of rapid-cycling and mixed states
- 15 The treatment of bipolar mixed states
- 16 The use of atypical antipsychotic agents in the treatment of diagnostic subgroups of bipolar disorder: mixed and pure states, psychotic and non-psychotic
- 17 Investigational strategies: treatment of rapid cycling, mixed episodes, and atypical bipolar mood disorder
- Index
- References
Summary
Introduction
The distinction between unipolar and bipolar forms, rooted in the work of Pierre Falret (1851) and Jules Baillarger (1854), was later established by Karl Kleist (1928, 1953) and his school (Neele, 1949; Leonhard, 1957), and subsequently validated by Angst (1966), Perris (1966), and Winokur et al. (1969), who showed that clinical, familial, and course features supported the nosological differentiation between unipolar and bipolar disorders (Angst and Marneros, 2001; Marneros, 2001). However, there are many areas of overlap between those extremes, pointing up the question of possible clinical subtypes in the interface of depressive and manic extremes of affective illness (Akiskal, 2002a).
Bipolar disorder occurs in multiple forms and degrees of severity. The recognition of the existence of so-called milder forms of manic-depressive illness has been a major endeavor in the last decade. The distinctions hinge on the classification of elated states and this poses some difficulty because it depends on the arbitrary gradation of severity and duration. Bipolar disorder with mania and strict unipolar depression without manic or hypomanic episodes would represent the extremes of a spectrum (Akiskal, 1983); recurrent depressions with hypomania would occupy a middle territory (Akiskal, 2002b). Goodwin and Jamison (1990) point out that the exploration of spectrum models of manic-depressive illness would enhance research on genetic markers and modes of genetic transmission, provide an approach for identifying individuals at risk for the development of bipolar illness, and permit the evaluation of treatments for milder forms, including the question of whether early intervention could lessen the chance of progression to bipolar illness.
- Type
- Chapter
- Information
- Bipolar DisordersMixed States, Rapid Cycling and Atypical Forms, pp. 88 - 108Publisher: Cambridge University PressPrint publication year: 2005
References
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