AI Article Synopsis
- A study investigated how astronauts perceive time before, during, and after their missions on the International Space Station, comparing them to a control group of non-astronauts.
- The research found that astronauts had slower reaction times and struggled with time estimation tasks while in space, especially when multitasking.
- The study suggests that altered time perception in microgravity might be due to changes in the body's internal clock and challenges with attention and memory in stressful conditions.
Article Abstract
We report a study on astronauts aimed at characterizing duration judgment before, during, and after long-duration stays on board the International Space Station. Ten astronauts and a control group of 15 healthy (non-astronaut) participants performed a duration reproduction task and a duration production task using a visual target duration ranging from 2 to 38 s. Participants also performed a reaction time test for assessing attention. Compared to control participants and preflight responses, the astronauts' reaction time increased during spaceflight. Also, during spaceflight, time intervals were under-produced while counting aloud and under-reproduced when there was a concurrent reading task. We hypothesize that time perception during spaceflight is altered by two mechanisms: (a) an acceleration of the internal clock through the changes in vestibular inputs in microgravity, and (b) difficulties in attention and working memory when a concurrent reading task is present. Prolonged isolation in confined areas, weightlessness, stress related to workload, and high-performance expectations could account for these cognitive impairments.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10063900 | PMC |
| http://dx.doi.org/10.3389/fphys.2023.1141078 | DOI Listing |
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