Performance of university students on random number generation at different rates to evaluate executive functions

Arquivos de Neuro-Psiquiatria

Amer C. Hamdan²  Juberty A. De Souza¹  Orlando F. A. Bueno¹ 

[1] ,Universidade Federal de Mato Grosso do Sul Departamento de Psicologia

关键词: executive functions;    working memory;    central executive;    random number generation;    neuropsychological test;    funções executivas;    memória operacional;    executivo central;    geração aleatória de números;    teste neuropsicológico;   

DOI  :  10.1590/S0004-282X2004000100010

来源: SciELO

【 摘 要 】

OBJECTIVE: To evaluate the performance of adult young subjects in a Random Number Generation (RNG) task by controlling the response speed (RS). METHOD: Sixty-nine university students of both sexes took part in the experiment (25.05 ± 6.71 year-old). Participants were alloted into 3 groups which differed in RS rates to generate numbers: 1, 2 and 4 seconds to generate each number. A digital metronomer was used to control RS. Participants were asked to generate 100 numbers. The responses were mensured through Evans's RNG Index. RESULTS: There were statistically significant differences among the groups [F (3, 68) = 7.120; p < .05]. Differences were localized between 1 and 2 seconds (p = 0.004) and between 1 and 4 seconds (p = 0.006). No differences were observed between 2 and 4 seconds (p = 0.985). CONCLUSION: The present results suggest that the response speed in production of random numbers influences the performance of the Random Numbers Generation task.

【 授权许可】

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