Friday , October 22 2021

Astronaut David Saint-Jacques began his science mission with perception testing



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The Canadian astronaut, David Saint-Jacques, is attending a study of the University of York, designed to show us how we handle visual and other sensory cues that give us a sense of movement and distance. For more information, science journalist Ivan Semeniuk became a subject of control and tried the experiment on her own.

The Canadian astronaut David Saint-Jacques may be a new arrival to the International Space Station, but his first experience with the spaceship gives scientists an important data point in their efforts to understand that the brain has created a sense of orientation and movement.

Around 5 am on Thursday, Saint-Jacques embarked on a new series of sensing experiments designed by Laurence Harris, professor of the Human Performance Laboratory at York University.

After he tied him to the Columbus module of the station. Saint-Jacques dipped himself in a virtual reality environment, designed to test the way in which his brain was, and how far the subjects were. On the Earth, the visual signs provided by the experiment are combined with signals from the inner ear, also known as the vestibular system, which stimulates the brain when the body is accelerating or bending relative to the force of gravity.

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Read more: David Saint-Jacques enters orbit

In the zero-gravity environment of the space station, the vestibular system is effectively closed and allows scientists to focus on how the visual system makes decisions or misleads the brain. The aim of the study is to explore a perception that astronauts are able to experience some of the perceptual effects they may have previously experienced in space, according to how the distance appears in the Earth.

Both of them. Saint-Jacques and his US crewmate Anne McClain conducted the experiment less than three days after arriving at the station.

During the experiment, the Canadian Space Agency's mission control center near Montreal Dr. Saint-Jacques in contact with Dr. Içinde We wanted to get them early before it was too early to be in space, Harris Harris said.

Finally, dr. Harris and his team, seven astronauts, during the time spent in space, to participate in the study before and after. In addition to helping the astronauts adapt to their perceptions at the station, the results may shed light on how they can better help those in the World with vestibular problems resulting from injury or neurological disorders.

Harris, He said he was satisfied how Saint-Jacques coped with the trial's demands.

"It's really good, according to every appearance he's made. I'm sure it's better than what I'm going to do after I've been thrown into a place a few days ago."

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