Virtual Reality Clinical Trial
Official title:
Brain Changes and Spatial Navigation After Long-Duration Isolation and Confinement and the Significance of Virtual Earth Gazing to Augment Sensory Stimulation
This study investigates the time course and magnitude of eight months of isolation and confinement in a spaceflight analog facility on brain changes and cognitive performance. The study also assesses the feasibility of an immersive and interactive virtual environment (VE) to enhance positive affect and mental well-being during prolonged isolation and confinement.
The study investigates the neurobehavioural risks associated with future exploratory space missions and their mitigation as part of the isolation and confinement program "SIRIUS" (Scientific International Research In Unique terrestrial Station). The overarching objective of the study is two-fold. The first objective is to investigate the time course and magnitude of eight months of isolation and confinement in the spaceflight analog facility "NEK" at the Institute of Biomedical Problems (IBMP) in Moscow on brain changes, cognitive performance, and biochemical adaptations, and compare these data to a sex- and age-matched control group. To achieve this aim, multi-modal magnetic resonance imaging (MRI) data before and after the intervention to assess structural and functional brain changes before, and after the experiment will be collected. Furthermore, cognitive performance using a series of computer-based tests will be determined and blood and saliva samples to identify biochemical changes associated with brain plasticity and learning before, during, and after the experiment will be collected. Second, to address the need for sensory stimulation countermeasures during prolonged isolation and confinement, the feasibility of a highly immersive and interactive virtual environment (VE) to enhance positive affect and mental well-being will be assessed. To achieve this aim, the acute physiological and behavioral effects associated with the proposed sensory augmentation measure will be quantified (Does VE elicit immediate physiological and/or behavioral changes during long-duration isolation and confinement?). It will be verified whether there is an adaptation to the experience with repeated exposure bouts (Can VE elicit similar physiological and or behavioral responses after the VE exposure has been administered recurrently?). The administration rate is optimized relative to crew burden/compliance and scientific return (one administration once a month). This will also ensure that the approach will not have any chronic effects interfering with the primary outcomes of the first objective or any countermeasures foreseen by IBMP. These data will provide essential insights about the efficacy of a new, highly immersive, and target specific VR-based sensory stimulation augmentation to mitigate some of the risks associated with sensory monotony and visual disconnection from Earth during exploration-type missions. The two objectives will deliver a highly unique and comprehensive set of integrated neuroimaging and neurocognitive tools for the evaluation and ultimately prevention of adverse effects on brain plasticity and behavior. ;
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