POVEZANOST KAPACITETA RADNOG PAMĆENJA I FLUIDNE INTELIGENCIJE SA UČINKOM NA TESTU DIHOTIČKOG SLUŠANJA
THE CORRELATION BETWEEN WORKING MEMORY CAPACITY, FLUID INTELLIGENCE AND PERFORMANCE ON DICHOTIC LISTENING TASK

Summary/Abstract: Study raised the question of possibility to distinct the roles of working memory and fluid intelligence in performing dichotic listening task which demands maintenance of activation of relevant stimuli, their protection from interference as well as their cognitive processing. In dichotic listening task, numbers were simultaneously presented to participants (N=30) in right and left audio channel. Instead of one of the numbers, intrusive word danger was presented in the left channel. Task of the participants was to reproduce odd numbers presented in right channel. Dependent variables were detection of intrusive word and total of correctly and incorrectly reproduced numbers. Working memory capacity was measured by automated operation span task and fluid intelligence was measured by Raven advanced progressive matrices. Opposite to the initial hypothesis, majority of participants (83%) detected the intrusive word. Variables of individual differences correlate with performance in dichotic task: higher working memory capacity and higher intelligence mean more correctly reproduced numbers [both r(28)=.46, p<.05]. Intelligence is correlated with total of incorrectly reproduced even numbers from right channel and odd numbers from left channel [ρ(28)=-.37, p<.05, ρ(28)=-.41, p<.05, respectively]. Finnaly, working memory and intelligence explain the same part of the variance of correct reproductions in dichotic task (for both variables: β=.32, n.s.).

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