Risk of defeats in the central nervous system during deep space missions

Area of Science:

• Astrobiology
• Neuroscience
• Space Medicine

Background:

• Space flight factors (SFF) significantly impact astronaut operational capacity during deep space missions.
• Key SFF include gravitational overloads, altered magnetic fields, and ionizing radiation, which disrupt central nervous system (CNS) function.
• Existing research on SFF effects on brain activity often uses inconsistent parameters and lacks data on combined SFF impacts in real interplanetary scenarios.

Purpose of the Study:

• To systematically review and analyze recent advancements in astrobiology concerning the combined effects of SFF on astronauts.
• To address the need for unified parameters in ground-based models simulating deep space mission conditions.
• To enhance understanding of CNS risks, including cognitive, motor, and behavioral changes, during long-duration spaceflight.

Main Methods:

• Comprehensive literature review of astrobiology and space medicine research.
• Analysis of experimental data on the effects of individual and combined space flight factors.
• Evaluation of current ground-based modeling approaches for deep space missions.

Main Results:

• Identified significant perturbations to CNS function from combined SFF, leading to acute and chronic risks.
• Highlighted inconsistencies in model parameters used in previous studies.
• Emphasized the limited understanding of SFF interactions in realistic interplanetary mission contexts, such as Mars missions.

Conclusions:

• A unified approach to parameter selection for ground-based SFF models is crucial for accurate simulation of deep space missions.
• Further research is needed to fully elucidate the combined effects of SFF on astronaut CNS and overall performance.
• Standardized modeling parameters will improve the reliability of predicting and mitigating risks for future long-duration space exploration.