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Pró-Fono Revista de Atualização Científica

Print version ISSN 0104-5687

Abstract

MURPHY, Cristina Ferraz Borges  and  SCHOCHAT, Eliane. Influence of temporal aspects in auditory temporal processing tests. Pró-Fono R. Atual. Cient. [online]. 2007, vol.19, n.3, pp. 259-266. ISSN 0104-5687.  http://dx.doi.org/10.1590/S0104-56872007000300004.

BACKGROUND: auditory temporal processing. AIM: to compare the performance of children in auditory temporal processing tests according to different temporal variables such as inter-stimulus interval, stimuli duration and type of task (discrimination or ordering). METHOD: 27 children, with ages between 9 to 12 years, were evaluated. In order to analyze the effect of temporal variables, an adaptation of the American "Repetition test" was developed, containing four tests of frequency discrimination and ordering, and four tests of temporal discrimination and ordering. In order to investigate the variable 'type of requested task', tests involving frequency and temporal discrimination and ordering were elaborated. In order to evaluate the variable 'stimulus duration', frequency discrimination and ordering tests were elaborated, with stimulus durations of 200ms and 100 ms. In addition, temporal discrimination and ordering tests were carried out, with stimulus durations of 200/400ms and 300/600ms. In order to evaluate the variable 'inter-stimulus interval', tests were elaborated with randomly variable inter-stimulus intervals, ranging between 50ms and 250ms. RESULTS: regarding inter-stimulus interval, there was no statistically significant difference between the average number of correct answers when intervals varied between 50 and 250ms, in all of the tests. Regarding stimulus duration, the research group presented a poor performance for when stimulus had a shorter duration (100ms), compared to those with longer duration, but only in the tests involving frequency. Regarding order, the research group presented a poor performance in ordering tasks when compared to discrimination tasks. CONCLUSION: temporal variables such stimuli duration and type of task (discrimination and ordering) can interfere in the performance of children in tests of auditory temporal processing.

Keywords : Hearing; Hearing Tests; Children.

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