Events

On December 21, at 17:00, at Ilia State University E 207 (Cholokashvili Ave.#3/5), within Iliauni report on its scientific-research activities, scientific-research projects will be presented by Ilia State University (ISU) Scientific-Research Center called Tengiz Oniani Laboratory of Sleep and Wakefulness Study.

Two scientific-research reports will be presented.

A report on the topic of Relationship between the Phases of Sleep-Wake Cycle and Integrative Activities of the Brain will be delivered by associate professor Nikoloz Oniani.

Annotation

One of the topical issues faced by neuroscientists today is determining the role of sleep is memorization. This interest is provoked by multiple contradicting data in terms of this issue in scientific literature. The issue subjected to extensive research was the effect of sleep on implicate memory processes in rats, during which they used total sleep deprivation and an active isolation test.

The final outcomes showed that:

1. Premeditated total non-pharmacological deprivation does not have any effect on an active memorization process;

 2. Post-session total non-pharmacological sleep deprivation does not affect remembering the test processes;

3. A memorization process does not accelerate sleep initiation.

On the basis of the analyses of outcomes, it has been assumed that: 

1. Sleep has no specific role in consolidation of implicit memory traces;

2. Sleep deficit has no negative effect on the memorization process and remembering studied material;

3. Wakefulness is more important to consolidate memorization and memory traces than sleep;

One of the most topical issues faced by neuroscientists is identification of mechanisms causing depression. Our research looked into the structure of sleep and wakefulness and sought to determine its correlation parameters in relation to opioid receptor density in some structure of brain in rats.  According to the outcome, it can be assumed that low motor activity in rats and excessive amount of paradoxical sleep and high intensiveness in a sleep-wake cycle are phonotypical characteristics of depressive rats. As for high density of opioid receptors in depressive rats in comparison with non-depressive ones, the research showed that the mentioned brain structures are important to regulate emotions and, accordingly, developing depression or regulating sleep-wake cycle.

Report on the topic of The Pattern of Sleep-Wake Cycle and Sleep Quality in Georgia’s Urbane Population will be made by Prof. Nato Darchia.

Annotation

In the modern society, sleep disorders are one of the most common issues. For the purposes of assessing them, epidemiological research is held in mainly highly developed countries. In Georgia, epidemiological research-related data are rather scarce. We studied sleep disorders in the population of Tbilisi and Kutaisi, with 395 individuals in total, with the help of a questionnaire which included the questions as follows:  1. Sleep quality; 2. the degree of insomnia; 3. Risk of sleep apnea; 4. Daytime sleepiness; and 5. Health-related quality of life (SF-12).

The research produced the following results: 43 % of participants suffered from low quality sleep; 41 % with low effectiveness; 27.6% slept 6 hours or less per night; 26.8% suffered from sleep consolidation inability three times a week or more; 27.6% snored at night, and 10.6% took sleeping pills;

The research results testify to the fact that sleeping disorders is a serious issue in the Georgian population, and the problem needs a global evaluation.

Date and time: 21 December, 17: 00
Venue: E 207 room (Cholokashvili Ave. #3/5), ISU

All are welcome to attend the event.