Effects of a Semantically Irrelevant Virtual Reality Experience on Memory and Emotion After Watching a Traumatic...

Area of Science:

• Psychology
• Virtual Reality Applications
• Trauma Studies

Background:

• First responders face significant mental health challenges due to high-stress occupations.
• Traditional interventions like meditation and debriefing do not address cognitive processing of trauma, specifically memory and emotion.
• Cognitive models suggest trauma-related stimuli trigger memories and physiological responses.

Purpose of the Study:

• To investigate the impact of semantically irrelevant virtual reality (VR) content on the retrieval of adverse event memories and associated emotions.
• To explore VR's potential to interrupt traumatic memory retrieval by introducing a distantly related semantic environment.
• To assess VR's efficacy in mitigating psychological distress following exposure to a simulated traumatic event.

Main Methods:

• 107 university participants were randomly assigned to control, comparison (reading), or intervention (VR) groups.
• All groups viewed a video of a house fire to create a traumatic memory.
• The intervention group experienced a VR simulation of the Red Sea, contrasting with the fire's attributes.
• Positive and Negative Affect Schedule and a memory accuracy test were administered.

Main Results:

• No significant difference in memory accuracy was found between the groups (P=.48).
• The semantically irrelevant VR intervention significantly increased positive emotions (P=.04).
• Negative emotions were significantly reduced across all groups, with a notable reduction in the VR intervention group (P<.001).

Conclusions:

• Semantically irrelevant VR effectively modulated participants' emotional states.
• VR offers a rapid, cost-effective method for addressing psychological reactions to traumatic events.
• Further research is needed to optimize VR content for memory suppression effects.