Аннотация:Представлены данные экспериментального психофизического исследования по обнаружению тонального сигнала на фоне шума, предъявлявшегося моноурально в правое или левое уши. Описаны эффекты межполушарной асимметрии и роли индивидуально психологических особенностей наблюдателей (экстраверсия, нейротизм, мотивация достижения).
Effects of extraversion, impulsivity, neuroticism and achievement motivation were investigated in prolonged signal detection task. Sixty-five subjects detected threshold auditory signal mixed with noise background. RT, d`, decision-making criterion index, bias of response confidence and measures of their dynamics were recorded. The introverts showed higher sensory sensitivity and stability of task performance in comparison with extraverts. High impulsive subjects used less strict criterion than low impulsive ones. The subjects with high scores of achievement motivation were more stable in the performance of signal detection: their indeces of variability of both RT and criterion were significantly lower. The effects of factor interactions of achievement motivation*extravertion, extravertion*inpulsivity and extravertion*neurotism on strictness of criterion were also discovered. The analysis of response confidence bias revealed the phenomenon of response overconfidence.
