title: [Human assessment of time intervals depending on the manner of their representation].
abstract: On 42 subject three experimental series were carried out: in the first (12 persons) and second (24 persons) series the presented interval was limited by two short clicks, in the third series (6 persons)--by electrocutaneous stimuli. Duration of the stimuli was 1 ms. There were three regimes of work in the first and third series: the intervals successively increased from 100 to 500 ms with a step of 100 ms (1), decreased from 5000 to 100 ms (2) or varied in a random order (3). In the second series only the regime 3 was applied. In all series the method of temporal intervals reproduction was used. The means of the reproduction varied: in the second and third series the interval was reproduced by button pressing according to the presented duration: in the first series the end of the interval was marked by a short button push, and the beginning was the moment of the second stimulus presentation. With the first means a considerable overreproduction was observed of the presented duration at all intervals and all regimes. At the second and third series a phasic character of the reproduction duration was noted: up to 1000 ms the interval mostly was overestimated, over 2000 ms--it was significantly underestimated. It is suggested that as the estimation of the temporal interval implies some motor reaction, the afferent flow of signals from the active muscles can change the value of the reproduced duration. In the first series, the subjects probably do not take into account the time necessary for the realized signal perception.
authors.forename: A G
authors.initials: AG
authors.lastname: Smirnova
authors.forename: M V
authors.initials: MV
authors.lastname: Poliakova
authors.forename: Iu O
authors.initials: IuO
authors.lastname: Alianchikova
mesh_terms: D000161:Acoustic Stimulation / Q000295:instrumentation / Q000379:methods; D000328:Adult; D004558:Electric Stimulation / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology; D013997:Time Factors; D013998:Time Perception / Q000502:physiology*
vernacular_title: Otsenka chelovekom vremennýkh intervalov v zavisimosti ot sposoba ikh vosproizvedeniia.