Introduction:The possibility of Mild Cognitive Impairment (MCI) reversal has generated numerous studies in search of treatment, including cognitive stimulation through virtual reality (VR). Despite its use, there is still no evidence about the modalities and effects in people with MCI. Aim: To systematize the characteristics of the studies that have used cognitive interventions with VR cognitive in people with MCI, describe their effects and to establish recommendations for future research based on the limitations reported. Methods: systematic review of studies published between 2010 and 2020, in the Web of Science, Scopus and Pubmed databases. Results: 14 studies were identified with programs that mostly used immersive VR, with the "supermarket" as the most frequent virtual scenario. In seven studies only one cognitive function was involved, with memory and executive functions being the most intervened. The assessment instruments focused on cognitive measures, with little assessment of neuropsychiatric and quality of life variables. Thirteen studies reported improvements on the general cognitive level or by specific domain. Conclusions: The use of immersive and non-immersive VR has had positive results in the general or domain-specific cognitive performance of people with MCI, however, due to the incipient and limited evidence of its use in people with this pathology, it is not possible to determine the sustainability of these results and the generalization of these interventions regarding daily living activities. Interventions with real environments and post-intervention follow-up are recommended.

Aging has been characterized by a natural decline of memory, as well as by a decline in the perception of memory self-efficacy. The relationship between these two variables has been the subject of several studies, confirming that the perception of mnemonic self-efficacy affects actual performance on memory tasks. However, there is a smaller group of studies where this relationship has not been found. The objective of the present study was to compare the perception of self-efficacy of memory with performance in memory tasks in older and younger adults. Two hundred older adults and 111 university students participated in the study by responding two instruments: one Perception of Memory Self-Efficacy, and another one on Performance in Operational Memory tasks. Both instruments were constructed and adapted so that they be comparable. The results showed that older adults have a lower performance in almost all memory tasks and a slight superiority in the perception of memory self-efficacy, and a significant relationship was found between the two. On the other hand, in younger people's beliefs about their memory were slightly lower, but they performed better.

Aging has been characterized by a natural decline of memory, as well as by a decline in the perception of memory self-efficacy. The relationship between these two variables has been the subject of several studies, confirming that the perception of mnemonic self-efficacy affects actual performance on memory tasks. However, there is a smaller group of studies where this relationship has not been found. The objective of the present study was to compare the perception of self-efficacy of memory with performance in memory tasks in older and younger adults. Two hundred older adults and 111 university students participated in the study by responding two instruments: one Perception of Memory Self-Efficacy, and another one on Performance in Operational Memory tasks. Both instruments were constructed and adapted so that they be comparable. The results showed that older adults have a lower performance in almost all memory tasks and a slight superiority in the perception of memory self-efficacy, and a significant relationship was found between the two. On the other hand, in younger people's beliefs about their memory were slightly lower, but they performed better.