Abstract
A mental arithemetic task was applied on 17 medical students (134
males and 4females) under quiet (42 dB/A/Leq) and noisy laboratory
conditions (recorded trafficnoise, 60 dB/A/Leq). Subjective noise
sensitivity (SNS) was assessed with the Weinstein'sNoise Sensitivity
Scale. Personality traits of extro-intraversion and neuroticism wereestimated
with the Eysenck Personality Questionnaire. Concentration problems
andtredness during the experiments were neasured with ten-graded,
self-rating scales. Therewas no significant effect of noise on the
accuracy and speed of mental processingcompared to quiet condition.
Correlation analysis revealed a significant negativeinfluence of
the level of neuroticism on shollow mental processing in quiet (P
< 0.05).Neuroticism also significantly influenced the concentration
problems (P < 0.01) andfatigue (P < 0.05) during performance in quiet,
and fatigue only under noisy conditions(P < 0.05). No significant
correlation was found between the personality traits ofextraversion
and SNS, and the performance on mental arithmetic task.
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