Investigation of the Impact of Exploring a Novel Virtual Environment on Memory Recall
摘要
Whether exposure to a novel environment in virtual reality improves subsequent verbal memory or not is still debated. The present study aims to replicate positive findings by assessing whether exploration of a novel virtual environment leads to better memory recall in a task performed afterwards than exploration of a familiar environment and whether this effect is related to the exploratory behavior. Fifty-five participants completed three sessions that took place on different days. The first session consisted of assessing the baseline memory performance. Participants encoded a list of 40 words and then freely recalled as many words as possible during two memory tests—one conducted immediately after a 30-second distraction task, and the other after a 24-hour delay. In the second session, participants familiarized themselves with a virtual environment and then explored either the familiar or a novel environment before performing a similar memory task. In the third, participants explored the familiar or novel virtual environment (counterbalancing design) before performing the memory task. Our results failed to find a positive impact of exploring a novel environment (spatial novelty) on memory. Rather, we observed that immediate recall is higher after exploring a virtual environment (regardless of it being novel or familiar) compared to the baseline performance. The experience of virtual reality might induce another type of novelty, called distinct novelty, which could impact memory too. Furthermore, our results, derived from a sample of individuals aged 18 to 30, suggest a negative correlation between age and the novelty effect, highlighting the need for further research into individual differences. Surprisingly, delayed recall after 24 h was higher at baseline than after exploring a virtual environment.