2 research outputs found
Neural Mechanisms of Temporal and Rhythmic Structure Processing in Non-Musicians
Music is increasingly being used as a therapeutic tool in the field of
rehabilitation medicine and psychophysiology. One of the main key components of
music is its temporal organization. The characteristics of neurocognitive
processes during music perception of meter in different tempo variations
technique have been studied by using the event-related potentials technique.
The study involved 20 volunteers (6 men, the median age of the participants was
23 years). The participants were asked to listen to 4 experimental series that
differed in tempo (fast vs. slow) and meter (duple vs. triple). Each series
consisted of 625 audio stimuli, 85% of which were organized with a standard
metric structure (standard stimulus) while 15% included unexpected accents
(deviant stimulus). The results revealed that the type of metric structure
influences the detection of the change in stimuli. The analysis showed that the
N200 wave occurred significantly faster for stimuli with duple meter and fast
tempo and was the slowest for stimuli with triple meter and fast pace
Subjective Sleepiness Dynamics Dataset (SSDD) Presentation: the Study of Two Scales Consistency
While the first references to the system of sleepiness assessment are
associated with medical re-search and the study of the effects of drugs on
sleep, currently subjective sleepiness assessment is widely used across
fundamental and practically oriented studies. The Stanford Sleepiness Scale
(SSS) and the Karolinska Sleepiness Scale (KSS) are often used as ground truth
in sleepiness re-search. Only a few studies applied both scales and practically
none aimed at studying their con-sistency and specific features. The present
study is devoted to analyzing the dynamics and con-sistency of subjective
sleepiness as measured by the KSS and the SSS in the adult population. A
particular task of the paper is to present the Subjective Sleepiness Dynamics
Dataset (SSDD) with the evening and morning dynamics of situational subjective
sleepiness. A total of 208 adults took part in the experiment. The results of
the study revealed that sleepiness generally increased from evening till night
and was maximal at early morning. The SSS score appeared to be more sensitive
to some factors (e.g., the presence of sleep problems). The SSS and KSS scores
were strongly consistent with each other. The KSS showed a generally more even
distribution than the SSS. SSDD continues to be collected, we are going to
equalize the sample by sex, we are actively adding older people. We plan to
collect a sample of 1,000 people. Currently SSDD contains a lot of in-formation
that can be used for scientific research.Comment: 18 pages, 6 figures, 3 table