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22. Violation of mediated memory
Indirect is memorization using an intermediate (mediating) link in order to improve reproduction.
Violation of mediated memory in various groups of patients was investigated by S. V. Loginova and G. V. Birenbaum. In the works of A. N. Leontiev it is shown that the introduction of the factor of mediation improves the reproduction of words. But despite the fact that the mediating factor normally improves memorization, it turned out that in some patients the introduction of a mediating link often does not improve, but even worsens the possibility of reproduction.
Patients with impaired mediated memory remember words worse when they try to use a mediating link. Mediation does not help those patients who are trying to establish too formal connections (for example, for the word "doubt" the patient drew a catfish fish, because the first syllable coincided, and for the word "friendship" - two triangles).
When analyzing memory disorders, one should take into account the personality-motivational component.
To study the violation of the motivational component of mnestic activity, experimental studies were carried out. The subject was presented with about twenty tasks that he had to complete. This new motive acted as a sense-forming and motivating motive (the subject set himself a specific goal - to reproduce as many actions as possible).
The fact that mnestic activity is motivated can also be seen in the example of pathology.
The same experiments were carried out in patients with various forms of disturbances in the motivational sphere. It turned out that:
1) in patients with schizophrenia, there was no effect of better reproduction of incomplete tasks compared to completed ones;
2) patients with rigidity of emotional attitudes (for example, in epilepsy) reproduced incomplete actions much more often than completed ones.
Summing up, let's compare the results obtained in the study of healthy subjects and subjects with various mental illnesses.
1. In healthy subjects, VL/VZ = 1,9.
2. In patients with schizophrenia (simple form) VL/VZ = 1,1.
3. In patients with epilepsy VL/VZ = 1,8.
4. In patients with asthenic syndrome VL/VZ = 1,2.
Thus, a comparison of the results of reproducing unfinished actions in patients with various disorders of the motivational sphere indicates the important role of the motivational component in mnestic activity.
Author: Vedekhina S.A.
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