Research science of sleep and artist

How do fish sleep?

When fish sleep, most of the time, they don’t move that much, their breathing slows down and can sometimes be picked up by your hand. Research done at Stanford University discovered that Zebra Danios (type of fish) sleep very similarly to how humans sleep. They monitored the brain and body activity of the fish and found slow wave sleep and paradoxical sleep (deep sleep), just like mammals, reptile, and birds. One difference was that during paradoxical sleep they did not exhibit rapid eye movement (REM) because they have no eyelids.

Scientists believe that most fish have regular sleep schedules just like humans and other animals. Most aquarium fish are diurnal, meaning they move about during the day and rest at night.

Do fish suffer from sleep disorders?

Scientists haven’t done a lot of research on fish slumber, but in studies on Zebra Danios, it was discovered that when they were deprived of sleep for a few days using a mild electrical current, they slept more when they were returned to a normal day/night cycle and not disturbed. However, when they were kept under constant light for several days, they slept normally when returned to a regular day/night cycle. Researchers think that light might inhibit the sleep-promoting hormone melatonin in Zebra Danios, but much more research is needed in this area.

https://www.aqueon.com/articles/fish-sleeping-habits

 

Lee Hadwin

For 40 years Lee Hadwin has been making artwork while sleepwalking and doesn’t remember. When he is awake he has no creative talent but when asleep elaborate drawings and paintings are created. He first discovered this when he was 4 years old, as a frequent sleepwalker, he would get up from bed and roam the house. Eventually, he started pulling crayons and pencils out of his school bag and scribbling on his bedroom walls. After he was done, he’d go back to sleep.
Since then, Hadwin, who was born in Australia and now lives in London, has made hundreds of night time works. Sometimes they’re figurative sketches; other times they’re more abstract. The schedule is similarly unpredictable. Usually, he’ll make a piece a couple of nights a week, though occasionally he’ll be limited to one every couple of months. In his early 20s, he went years without making anything.