Spatial proximity amplifies valence in emotional memory and defensive approach-avoidance

Area of Science:

• Psychology
• Neuroscience
• Urban Studies

Background:

• Egocentric distance significantly influences animal defensive behaviors.
• Human defensive responses to social proximity are not well understood.
• Urban environments necessitate close social interactions.

Purpose of the Study:

• To investigate how spatial proximity to social stimuli affects human defensive responses.
• To test if social cue valence scales with egocentric distance.
• To explore implications for urban affective interpersonal behavior.

Main Methods:

• Four experiments utilizing 3-D virtual reality simulations.
• Measurement of fear-potentiated startle responses.
• Assessment of interpersonal defensive boundaries and memory persistence.
• Analysis of approach-avoidance behaviors in response to social threats and rewards.

Main Results:

• Proximal social stimuli enhanced defensive responses (fear-potentiated startle) compared to distal stimuli.
• Interpersonal defensive boundaries adapted to aversive learning.
• Fear memories of proximal social threats were more persistent.
• Startle responses showed proximity-dependent modulation for threat avoidance versus reward tolerance.

Conclusions:

• Egocentric distance amplifies the valence of social stimuli, influencing emotional memory and approach-avoidance.
• Findings suggest proximity alters affective interpersonal behavior, with relevance to urbanization.
• Spatial proximity plays a critical role in modulating human defensive and affective responses.