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Biomedical subjects

O E Surnina

Publications and source records attributed to O E Surnina.

13 recordsLinked to original sources
PubMedDate not supplied

[Evaluation and reproduction of time intervals in 7-10-year old children].

We examined 200 children at the age of 7-10 (100 boys and 100 girls). The subjects had to estimate and reproduce time intervals in the range of 15-90 s. It was found that the children reproduced the intervals better and with lesser deviations than they estimated the intervals. The precision of time estimation increased with age and was best in ten-ear-old children. The findings confirm the authors' hypothesis about the "active" and "passive" time perception.

Age Factors↗
PubMedDate not supplied

[The invariance of subjective time scales].

Organization of subjective time scales was studied by various methods of duration scaling (reproduction, fractionation, multiplication, evaluation, measuring and cross-model selection). Computation of linear correlation coefficients between physical time and its subjective expression for various methods of scaling in different coordinate systems allows to make a conclusion about a degree form of psychophysical dependence. The value of function degree index varies in the range of 0.80-0.88 for verbal evaluation and 0.93-1.07 for other methods. The concept is suggested about the "active" and "passive" time.

Adolescent↗
PubMedDate not supplied

[The subjective evaluation of time intervals by 3- to 6-year-old children].

The investigation of 3-6 aged children's time perception shows that subjective scaling methods, which except the direct magnitude estimates (cross-modality matching, categorization and duration production) reveal the reliable results. These methods may be used for the age, when the "conceptual time" (the concepts of physical time units) has not be developed yet.

Acoustic Stimulation↗
PubMedDate not supplied

[Sex and age differences in the subjective assessment of time by preschoolers].

Time perception was studied in children under school age from 2.5 to 6 years. Using cross-modal matching, the children assessed durations of 1-, 3-, 5-, 7-, and 10-sec sound signals. It was found out that children under school age, irrespective of sex, more accurately estimated the extreme durations in the internal range (1 and 10 sec). In contrast to girls, boys reveal a clear-cut tendency to minimize the variability of assessments with age. Nevertheless, this tendency is not related with the attention level.

Acoustic Stimulation↗
PubMedDate not supplied

[The capacity to distinguish short durations of time intervals in children and adults].

Two groups of children (5-6-year-old and 7-8-year-old) were presented with pairs of sound signals of the same or different durations. Sound signal durations in pairs could be 1.0, 1.2, 1.5, and 2.0 sec. The children had to detect the difference between the sounds in a pair. The obtained data were compared to the analogous results shown by the 18-39-year-old subjects. It was found out that the ability to discriminate intervals of short duration substantially improved with age. This phenomenon in presumably connected with perfection of the short-term memory. Independently of the subject's age, the order of presentation of signals in a pair influences the ability to discriminate between their durations.

Acoustic Stimulation↗