Cognitive deficits in bipolar disorders: Implications for emotion.

Area of Science:

• Neuroscience
• Psychiatry
• Cognitive Psychology

Background:

• Bipolar disorder (BD) is a severe psychiatric illness associated with significant cognitive deficits and emotional disturbances.
• These cognitive and emotional issues are linked to poorer functional outcomes and are also observed in first-degree relatives of individuals with BD.
• Traditionally, cognitive and emotional domains have been studied independently, despite emerging evidence of their interconnectedness in BD.

Purpose of the Study:

• To review the evidence for cognitive deficits and emotional disturbances in bipolar disorder.
• To explore the intricate relationship between cognitive and emotional domains in BD.
• To propose a model integrating cognition and emotion in BD for future research and treatment development.

Main Methods:

• Review of existing literature on cognitive functions (e.g., executive function, memory, verbal fluency) in individuals with and at high risk for BD.
• Examination of research on emotionality, emotion regulation, and impulsivity in BD.
• Synthesis of findings to build a theoretical model linking cognitive and emotional impairments.

Main Results:

• Cognitive deficits, particularly in executive functions like inhibition and working memory, are prominent in BD and its relatives.
• Difficulties in emotionality, emotion regulation, and impulsivity are central to the experience and outcome of BD.
• Evidence suggests a significant link between cognitive impairments and emotional disturbances in BD, challenging their traditional separation.

Conclusions:

• Cognitive and emotional domains are not independent but are intricately linked in bipolar disorder.
• Understanding these interconnections is crucial for developing more effective, integrated treatments for BD.
• Further research is needed to elucidate the precise nature of the cognition-emotion relationship in BD to improve patient functionality and reduce disability.