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Updated: Nov 6, 2025

Assessment of Global Ocular Structure Following Spaceflight Using a Micro-Computed Tomography Micro-CT Imaging Method

Assessment of Global Ocular Structure Following Spaceflight Using a Micro-Computed Tomography Micro-CT Imaging Method

Published on: October 27, 2020

Persistent deterioration of visuospatial performance in spaceflight.

Endre Takács^1,2,3, Irén Barkaszi¹, István Czigler^1,2

¹Institute of Cognitive Neuroscience and Psychology, ELKH Research Centre for Natural Sciences, Budapest, 1117, Hungary.

Scientific Reports

|May 6, 2021

Summary

This summary is machine-generated.

Astronauts experience significant declines in cognitive performance and attention during long space missions. Their brains show no adaptation, indicating potential risks for future deep space exploration.

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Last Updated: Nov 6, 2025

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Published on: October 27, 2020

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Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Published on: May 23, 2011

Area of Science:

Space Medicine
Neuroscience
Human Physiology

Background:

Long-term effects of spaceflight on human cognition remain largely unknown.
Understanding brain and behavior adaptation is crucial for astronaut health and mission success.

Purpose of the Study:

To investigate the long-term effects of spaceflight on visuospatial performance and electrophysiological responses.
To assess cognitive adaptability during extended missions to the International Space Station.

Main Methods:

Assessed visuospatial performance and event-related brain potentials in astronauts before, during, and after a ~6-month space mission.
Compared on-orbit performance and brain activity with pre- and post-flight Earth-based data.

Main Results:

Astronauts exhibited slower and more error-prone visuospatial performance during spaceflight compared to Earth.
Electrophysiological data revealed diminished attentional resources during both early and late stages of the mission.
No signs of cognitive adaptation were observed throughout the spaceflight duration.

Conclusions:

Spaceflight leads to marked decrements in cognitive function and attentional capacity.
Human adaptability to the space environment is limited, posing challenges for long-duration missions.
Further research is essential to mitigate cognitive risks before deep space exploration.