scholarly journals Role of Reward Sensitivity and Processing in Major Depressive and Bipolar Spectrum Disorders

2016 ◽  
Vol 47 (5) ◽  
pp. 600-621 ◽  
Author(s):  
Lauren B. Alloy ◽  
Thomas Olino ◽  
Rachel D. Freed ◽  
Robin Nusslock
2015 ◽  
Vol 188 ◽  
pp. 319-323 ◽  
Author(s):  
A. Murru ◽  
D. Primavera ◽  
M. Oliva ◽  
M.L. Meloni ◽  
E. Vieta ◽  
...  

Author(s):  
Lauren B. Alloy ◽  
Madison K. Titone ◽  
Tommy H. Ng ◽  
Corinne P. Bart

Environmental experiences play an important part in the development and maintenance of bipolar spectrum disorders (BSDs). Consequently, in this chapter, we review evidence on the role of life stress in the onset and course of BSDs. We begin with methodological issues relevant to demonstrating life stress’s role in the development and course of BSDs. We consider the effects of exposure both to recent life events and childhood stressors, as well as whether the influence of stressor exposure changes over the course of BSDs. We also address whether the effects of different types of life event exposure depend on mood episode polarity (hypomanic/manic versus depressive episodes) and whether there are specific theoretically relevant types of life events that are particularly likely to trigger bipolar episodes or symptoms. We end with suggestions for future research that may lead to a more complete understanding of the bipolar disorder–stress association.


2020 ◽  
Author(s):  
Benjamin A Katz ◽  
Cognition and Psychopathology Lab - Iftah Yovel

Bipolar spectrum disorders are characterized by alternating intervals of extreme positive and negative affect. We performed a meta-analysis to test the hypothesis that such disorders would be related to dysregulated reinforcement sensitivity. First, we reviewed 22 studies that reported the correlation be-tween self-report measures of (hypo)mania and measures of reinforcement sensitivity. A large relation-ship was found between (hypo)mania and reward sensitivity (g = .75), but not with punishment sensi-tivity (g = -.05). This stands in contrast to self-reported depression which was found to have a small, negative relationship with reward sensitivity and a large positive one with punishment sensitivity (Katz et al., 2020). Next, we reviewed 32 studies that compared reinforcement sensitivity between euthymic, bipolar participants and healthy controls. There, bipolar disorder had a small, positive relationship with reward sensitivity (g = .19) and a medium, positive relationship with punishment sensitivity (g = .64). These findings support a dual-system theory of bipolar disorders, wherein reward sensitivity is more closely related to mania and punishment sensitivity more closely to bipolar depression. Bipolar disorders show diatheses for both states with euthymic participants being hypersensitive to both rewards and punishments. Implications for further theory and research practice are expounded upon in the discussion.


2018 ◽  
Vol 264 ◽  
pp. 202-209 ◽  
Author(s):  
Madison K. Titone ◽  
Rachel D. Freed ◽  
Jared K. O'Garro-Moore ◽  
Andrew Gepty ◽  
Tommy H. Ng ◽  
...  

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