Dispositional negativity: An integrative psychological and neurobiological perspective

Area of Science:

• Psychology
• Neuroscience
• Behavioral Science

Background:

• Dispositional negativity, a core aspect of temperament and personality, significantly impacts health, wealth, and happiness.
• Elevated dispositional negativity is a concern for clinicians, researchers, and policymakers.

Purpose of the Study:

• To explore psychological and neurobiological mechanisms connecting dispositional negativity to emotional states.
• To elucidate the pathways linking stable individual differences in dispositional negativity to momentary negative affect.

Main Methods:

• Analysis of self-report data to identify key pathways contributing to heightened negative affect.
• Integration of behavioral and biological data to understand neural systems.
• Cross-species research (humans, monkeys, rodents) on neural correlates of negative affect.

Main Results:

• Three primary pathways identified: increased stressor reactivity, tonic increases in negative affect, and increased stressor exposure.
• Tonically elevated negative affect is central to daily life and psychopathology development.
• Neural systems, including the extended amygdala and prefrontal cortex, are implicated in these pathways.

Conclusions:

• Dispositional negativity is linked to negative emotional states via stress reactivity, negative affect, and stressor exposure.
• Tonically elevated negative affect may reflect heightened reactivity to subtle stressors.
• An integrative psychobiological framework explains the link between emotional traits, states, disorders, and adverse outcomes.