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Related Experiment Video

Updated: Feb 12, 2026

Design and Construction of an Urban Runoff Research Facility

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

State paranoia and urban cycling.

Lyn Ellett¹, Jess Kingston¹, Paul Chadwick²

¹Department of Psychology, Royal Holloway, University of London, UK.

Psychiatry Research

|April 4, 2018

Summary

Urban cycling frequently triggers state paranoia, a fear of harm from others, in the general population. This temporary paranoia is linked to environmental threats, not inherent personality traits.

Keywords:

Cycling Emotion Health Individual differences Paranoia Urban environment

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Area of Science:

Psychology
Environmental Psychology
Mental Health Research

Background:

Paranoia exists on a continuum within the general population.
The stress-vulnerability model links threatening environments to state paranoia, even in individuals with low trait paranoia.

Purpose of the Study:

To investigate the association between urban cycling, an environment perceived as high in interpersonal threat, and state paranoia.
To test the stress-vulnerability model in the context of everyday activities.

Main Methods:

323 regular urban cyclists in London completed questionnaires.
Measures included state paranoia, trait paranoia, anxiety, depression, and stress.
State paranoia was operationalized as the perception of harm from other road users.

Main Results:

70% of the general population sample reported experiencing state paranoia while urban cycling.
State paranoia during urban cycling was not associated with trait paranoia.
State paranoia was higher during urban cycling compared to using the London Underground.
State paranoia on the Underground was associated with trait paranoia.

Conclusions:

Urban cycling is associated with increased state paranoia, supporting the stress-vulnerability model.
Environmental stressors, like those in urban cycling, can elicit temporary paranoia independent of dispositional traits.
Findings highlight the role of situational factors in everyday paranoia.