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Psycology » Psychiatry and psychotherapy » Neurosis: Part I » Causes of neuroses

This section is devoted to an analysis of the common causes of neuroses. Factors specific to the etiology of certain neurotic syndromes are discussed in the next section.

GENETIC FACTORS

Obviously, the propensity to develop neurosis detect psychological tests for neuroticism, is mainly due to genetic factors (see: Shields 1976 review). The trend of the autonomic nervous system to react to stressors, measured the degree of attenuation of galvanic skin response (Lader, Wing 1966), to some extent genetically determined. It is believed that both trends reflect a general predisposition to the development of neuroses. Studying families of patients suffering from neuroses, leads to the same conclusion. So, in close relatives of neurotic patients found an increased frequency of neuroses (Brown 1942; Slater 1943), and the study of twins showed higher concordance for monozygotic pairs neurosis compared with dizygotic twins. For example, Slater and Shields (1969) established a complete concordance in 40% of monozygotic twins and 62 to 15% of 84 dizygotic twins, indicating moderate genetic influence. (See: Slater, Shields 1969 review).

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