Apocalypse Now: Thoughts about Human Extinction under Mortality Salience Increase Death Thought Accessibility but Reduce Worldview Defense

Abstract

Various threats (e.g., climate change, nuclear wars, pandemics) pose the risk of human extinction. This represents a threat to human cultures and should result in effects similar to mortality salience (MS). At the same time, thoughts about human extinction reduce the belief in a long-lasting culture. This conflicts with the striving for symbolic immortality as a strategy to buffer MS. To investigate how thoughts about human extinction affect terror management, participants were presented with either an apocalyptic, destructive, or neutral video in combination with a manipulation of MS. Participants reported highest death-thought accessibility when watching the apocalyptic video under MS. However, worldview defense was decreased after watching an apocalyptic video under MS. These findings point to a dissociation between proximal and distal defense mechanisms: Thoughts about human extinction increase proximal defenses under MS, but they undermine the strive for symbolic immortality by worldview defense as distal defenses.