For certain, everyone had an acquaintance whose mood could change several times in the course of the day and depended on external incidents, even those that seemed to you insignificant. Such behavior can suggest an idea of psychological lability, the feature of perception of the world around causing fast and direct reaction to any event.
Labile mentality
The concept of lability was offered the scientist Vvedensky using it for assessment of recovery time of operability of fabric after its excitement. Today the term is used not only in physiology therefore also the sense changes under scope of application a little. For example, when it comes to lability of mentality, mean its mobility or even instability. Some are inclined to believe such feature of negative, seeing in it weakness, but such assessment is not quite right.
If to speak in the most general sense, then the labile mentality is a mechanism of survival. Without having an opportunity to react quickly to external events and to switch between them, the person would not have chances to develop. But in some cases the psychological lability gives to the person a lot of inconvenience. As it is not only about frequent change of mood, but also considerable depth of experiences. And it influences both a dream, and working capacity, and health. At inability to cope with too pronounced lability of mentality, there can be various violations of health. In that case consultation of the expert as the uniform way to correct the attitude does not exist is required. But similar extreme manifestations are not so frequent, most of people with labile type of mentality if feel discomfort, then short-term and insignificant, and people around consider them easy in communication by people, sympathetic and sensitive.