Team, led by Özge Yüzgeç working in Geneva University, discovered in its studies on mice that during sleep, pupils are enlarging and shrinking by commands of brain. Yüzgeç gave a statement to Hürriyet about her discovery so far covered by a lot of respectful scientific publications of USA and Europe.
A team of 10 members, led by a Turkish science woman Özge Yüzgeç working in Geneva University, Switzerland, put its signature under an important discovery. Yüzgeç et al discovered that pupils of mice are enlarging and shrinking by commands of brain during sleep.
A STEP FOR TREATMENT
Yüzgeç gave a statement to Hürriyet about her discovery so far covered by a lot of respectful scientific publications of USA and Europe, following its publishing in Current Biology journal. Young science woman continuing her doctorate study in neurological sciences field in Switzerland said: “For the first time, we proved that pupils are protecting the sleep depth and the memory formation during sleep. Pupil is shown to be a structure directing the brain functions, and this is a very interesting result for us.”
Saying that their study results may pave the way for significant changes in treatment of sleep disorders, and that checking the pupil in addition to brain activities will far more facilitate this treatment.
Cyphers of sleep from Turkish science woman
‘GUARDIAN OF MEMORY’
Yüzgeç et al have started their trial by observing which types of changes occur in brain after laboratory mice fall asleep after learning a new thing. They first recognized while examining the sleep positions of mice that they are sleeping either eyes open or half-open. In the trials departing from the question: “What type of a relationship is there between brain and pupils?”, first of all, they found out that pupils continue to move while eyes of mice are closed and during the sleep.
During tests, pupils continued to shrink as the sleep of mice deepened. Even in the deepest sleep, that is to say while brain shaped memory, pupils of mice were the smallest.
Yüzgeç defines this process as “guardian of memory”. During deep sleep, pupils do not show any reaction to light. As a conclusion, Yüzgeç and her team discovered on pupils of mice both stages of sleep, and their light sensitivity in deep sleep, and assistance given to memory.
SIGNIFICANT PROGRESS IN SLEEP SCIENCE
Yüzgeç says they have not yet performed tests on humans, but soon they are intending to start measurement of pupils in humans in cooperation with the sleep clinics in their university. “We believe that we shall be able to see that pupils change in humans as well.” If similar findings are detected in humans just like mice, significant and material progresses are expected in sleep science. Yüzgeç says that in treatment of sleep disorders, only brain activities are examined at present, but checking the pupils may also be useful. “Systems measuring brain activities are both more complicated and more costly, but examination of pupils by cameras is cheaper and more cost-effective for use in hospitals and clinics.”
Yüzgeç also adds that technologies using data of pupils can also produce watches sensitive to depth of sleep.