A comparison of the CNV in young and old subjects: Its relation to memory and personality

Memory and personality of 16 healthy old subjects (8 preseniles and 8 seniles) were assessed by the CLTR of selective reminding (Buschke and Fuld 1974) and the Maudsley Personality Inventory (MPI), respectively, and were correlated with the CNVs recorded in the serial conditions of habituation—reinf...

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Veröffentlicht in:Electroencephalography and clinical neurophysiology 1979-03, Vol.46 (3), p.337-344
Hauptverfasser: Nakamura, Michihiko, Fukui, Yoshihisa, Kadobayashi, Iwao, Kato, Nobukatsu
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Sprache:eng
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Zusammenfassung:Memory and personality of 16 healthy old subjects (8 preseniles and 8 seniles) were assessed by the CLTR of selective reminding (Buschke and Fuld 1974) and the Maudsley Personality Inventory (MPI), respectively, and were correlated with the CNVs recorded in the serial conditions of habituation—reinforcement—motor extinction (free attention)—reinforcement—motor extinction (forced attention), and compared with those in 8 young subjects. The mean CNV amplitude under the reinforcement condition decreased prominently at ages over 65 years. The mean reaction time (RT) was prolonged with aging and correlated with the CNV amplitude. The mean CNV amplitude under the motor extinction (free attention) condition decreased from the young to the presenile and senile ages. The mean CNV amplitudes under the habituation and motor extinction (forced attention) conditions did not show any definite changes among the groups. The CNV amplitude in the reinforcement had significant correlations with the CLTR value, extraversion and neuroticism scores of the MPI, while the RT had a significant correlation with the neuroticism score. Resistance against the motor extinction was enhanced with a decrease of the CLTR value and the extraversion score. We concluded that the CNV in the old people was more influenced by senile changes in memory and personality than by chronological age. La mémoire et la personnalité de 16 sujets âgés bien portants (8 préséniles et 8 séniles) ont été respectivement mesurées par le CLTR de souvenir sélectif (Buschke et Fuld 1974) et par l'Inventaire de Personnalité de Maudsley (MPI); elles ont été corrélées avec les CNVs enregistrées dans les conditions sérielles d'habituation—renforcement—extinction motrice (attention libre)—renforcement—extinction motrice (attention forcée), et comparées à celles de 8 sujets jeunes. L'amplitude moyenne de la CNV en condition de renforcement diminue de façon marquée à des âges supérieurs à 65 ans. Le temps de réaction moyen (RT) s'allonge avec l'âge et est corrélé à l'amplitude de la CNV. L'amplitude moyenne de la CNV en condition d'extinction motrice (attention libre) diminue du jeune âge aux âges présénile et sénile. L'amplitude moyenne de la CNV en condition d'habituation et d'extinction motrice (attention forcée) ne montre aucune modification nette entre les groupes. L'amplitude de la CNV dans la situation de renforcement a des conditions significatives avec la valeur de CLTR, les scores d'extraversion et de névrotisme
ISSN:0013-4694
1872-6380
DOI:10.1016/0013-4694(79)90207-4