ИСТИНА

The central contradiction in the performance of a threshold task is the conflict between the need to effectively discriminate between signals and observer`s available resources. This contradiction can be resolved in the form of additional efforts directed to compensate for resource deficiency or, on the contrary, in moving away from the task and an intention to reduce resource costs. The purpose of our research is to clarify the role of the mechanisms of personal self-control defining the observer`s strategies that are used for the loudness discrimination of two tonal signals. The psychophysical research on loudness discrimination of tonal signals (method 2AFC) has been carried out. The influence of self-regulation on RT and sensory sensitivity index A’ was found out. The qualitative analysis of individual ways of discrimination of signals was carried out. The relationships between loudness discrimination effectiveness and self-regulation processes characteristics mediating the sensory task decision were revealed.