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EXTRAVERSION, NEUROTICISM AND STRENGTH OF THE NERVOUS SYSTEM
Author(s) -
FRIGON JEANYVES
Publication year - 1976
Publication title -
british journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.536
H-Index - 92
eISSN - 2044-8295
pISSN - 0007-1269
DOI - 10.1111/j.2044-8295.1976.tb01534.x
Subject(s) - psychology , neuroticism , extraversion and introversion , cognitive psychology , clinical psychology , developmental psychology , personality , social psychology , big five personality traits
The hypothesized identity of the dimensions of extraversion‐introversion and strength of the nervous system was tested on four groups of nine subjects (neurotic extraverts, stable extraverts, neurotic introverts, stable introverts). Strength of the subjects' nervous system was estimated using the electroencephalographic (KEG) variant of extinction with reinforcement. Introverted subjects were found to have weak nervous systems, according to the EEG index, while extroverted subjects had strong nervous systems, thus confirming the hypothesis. It was also found that the dimension of strength of the nervous system was unrelated to differences in neuroticism. The results are interpreted as adding support to Eysenck's theory relating differences in extraversion‐introversion to differences in cortical arousal.