Naslov
Differentiation of motor and cognitive load components in Fitts tapping tasks

Autori
Manenica, Ilija ; Šuto, Ana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
8th Alps-Adria Psychology Conference - Abstracts / Podlesek, Anja ; Komidar, Luka - Ljubljana : Slovenian Psychological Association, 2008, 30-30

Skup
8th Alps-Adria Psychology Conference

Mjesto i datum
Ljubljana, Slovenija, 02.10.2008. - 04.10.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fittsov taping; motorno i kognitivno opterećenje; R-R intervali
(Fitts taping task; motor and cognitive load; R-R intervals)

Sažetak
The aim of this study was to try to differentiate contributions of motor and cognitive load components in Fitts tapping tasks (FTT) by keeping the motor component constant throughout the task in one situation, and comparing it with parameters in the standard situation. Twelve subjects performed the series of FTT in the standard way and in the situation with constant motor load, identical to the individual speed in the most difficult standard task. The working time for every task was five minutes. In both situations, target hits, intertap times and subjects´cardiac R-R intervals were continuously recorded. At the completion of each task subjects estimated its difficulty on Borg’ s scale. Performance indices (number of target hits and intertap time) changed as expected in relation to the task difficulty and the differences between the two experimental situations. Parameters and spectral analysis of R-R intervals in the middle frequency range (0.7-0.14 Hz) showed differences in and between two experimental situations, indicating a decrease in motor and an increase in mental component, as well as a higher overall task load in the standard situation due to a greater motor involvement. The task difficulty assessment on Borg’ s scale showed almost linear increase with the task difficulty, as well as a difference between two experimental situations, indicating significantly lower task load in the situation with constant motor load. On the basis of regression lines between the task difficulty (bits) and the scale assessment in the two situations (y= 0.7+2.22x and y=-1.55+2.37x), the assessment in both situations were transformed into the difficulty equivalents in bits. The difference between the lines was equivalent to 0.71 bits, which was attributed to the differences in the motor involvement. These results showed, generally speaking, cognitive component in FTT as more prominent in task load than motor component.

Izvorni jezik
Engleski

Znanstvena područja
Psihologija

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