Affective neuroscience of self-generated thought

Area of Science:

• Affective Neuroscience
• Cognitive Neuroscience
• Psychiatry

Background:

• Growing scientific interest in self-generated thought (SGT) independent of immediate environment.
• Lack of comprehensive synthesis on subjective experience and neural correlates of affect in SGT.
• Need for an integrated affective neuroscience approach for diverse forms of SGT.

Purpose of the Study:

• To develop an integrated affective neuroscience framework for self-generated thought.
• To synthesize psychological and neuroimaging findings on affect in SGT.
• To explore the influence of affect in SGT on well-being and mental illness.

Main Methods:

• Systematic synthesis of existing literature on the psychology of affect in SGT.
• Integration of recent neuroimaging research on the neural correlates of affect in SGT.
• Analysis of prevalence, valence, and variability of emotion in various forms of SGT.

Main Results:

• Affect in self-generated thought is prevalent, positively biased, and highly variable.
• Affect in SGT consistently recruits brain areas involved in emotional processing (e.g., orbitofrontal cortex, amygdala, insula, medial prefrontal cortex).
• Factors modulating typical psychological and neural patterns of affect in SGT were identified.

Conclusions:

• Affective neuroscience of SGT reveals consistent patterns in emotion and brain activity.
• Understanding affect in SGT is crucial for well-being and addressing mental illness.
• Future research must link brain function and subjective experience in both typical and disordered SGT.