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3.4.3. Working up of the results

3.4.3.1. Calculate an arithmetic mean quantity of the first three indexes in the beginning of the experiment.

3.4.3.2. Calculate an arithmetic mean quantity of the last three indexes at the end of the experiment.

3.4.3.3. Calculate a logarithmic relation of the last three indexes (at the end of the experiment) to the arithmetic mean quantity of the first three indexes (in the beginning of the experiment).

3.4.4. The interpretation of results

3.4.4.1. You should use the Following diagnostic criteria for the interpretation of the investigation results.

Weak” people are those people whose relation is less than 0,80, i.e. whose reaction lowers by the end of the experiment more than to 20%.

Strong” people are those, whose index increases, i.e. their relation is more than 1,0.

Those people who have a relation in the interval between 0,80 and 1,0 are considered to have “average” force.

3.4.4.2. The above mentioned criteria should be taken into account when interpreting the index of this or that examinee to define its place on the continuum force-weakness of NS.

Note. If it is difficult to use the above-mentioned technique by V.S.Merlin because of the necessity of spending too much time (about 45 minutes) and having an electric bell and a stopwatch you may use a graphic variant of E.P.Ilyin’s technique “Tepping test” (1972). Its detailed description can be found in the book “Methodical recommendations to the practice on psychophysiology” written by E.P.Ilyin (1981).

3.4.5. Some possible ways of practical use of the diagnostics results

3.4.5.1. Weak nervous system can be a contra-indication for a number of professions connected with risks and frequent extreme situations. In such cases the results of the diagnostics of NS force-weakness can be used in the process of professional selection and professional orientation.

3.4.5.2. As numerous investigations show the force-weakness of NS makes a great influence on the individual style of activity. That is why the results of the diagnostics of this typological NS quality should be taken into account in the process of teaching and upbringing while forming the individual style of activity and conduct.

3.4.5.3. It is known that people with weak nervous system are psychologically more vulnerable than people with strong nervous system. That is why the representatives of weak NS usually can not be leaders, they are outsiders and depend on others. People with strong NS, on the contrary, tend to leadership, sometimes – to dictatorship. This should be taken into account when forming groups and collectives and also in the process of personnel selection.

Chapter IV the diagnostics of psychic states

§1.The diagnostics of psycho-emotional states

4.1.1. General description

4.1.1.1. Any kind of human activity (behavior, communication, different kinds of creativity and many others) is taking place against the background of this or that psychic (psycho-emotional) state (PS). Besides among the four basic levels of PS (drowsiness, passive state of being awake, active state of being awake, excessive state of being awake) only active state of being awake makes a positive influence on the effectiveness of human activity. Other levels of PS decrease the effectiveness of activity because of their understated (drowsiness and passive state of being awake) or excessive (excessive state of being awake) activation. In such cases the psychological reliability decreases, that leads to different faults, up to crashes.

4.1.1.2. PS is directly connected with activation of cerebral hemispheres. Thus the main indicator of PS is a summary index of right and left hemispheres.

By analogy with the four basic indexes of FAH the Following indexes of PS are distinguished: situational, individual typological, activity-situational and activity-stereotyped.

  • Situational index reflects the level of a psycho-emotional tone (strength), the level of PS in this or that concrete situation.

  • Individual typological index, which is usually called emotional reactivity, reflects a psycho-emotional background typical for a given person, his individual psycho-emotional norm.

  • Activity-situational index reflects the level of PS in a concrete situation of activity.

  • Activity-stereotyped index reflects an individual psycho-emotional stereotype in this or that activity, i.e. a PS typical for a given person in this activity.

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