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Abstract
The distinctive theta rhythm that appears at the frontal midline during the performance
of mental tasks has been designated as frontal midline theta (Fmθ). Fmθ shows individual
differences and seems to be related to certain personality traits. In several studies,
it has been indicated that low platelet monoamine oxidase (MAO) activity is also associated
with certain personality traits. In the present study, we found a negative correlation
between the appearance of Fmθ and platelet MAO activity. Subjects with marked extroversion
show a high amount of Fmθ and low MAO activity. It is therefore suggested that Fmθ,
an electrophysiological marker, may be useful in the investigation of monoamine functions
in the central nervous system (CNS) by way of platelet MAO activity, a biochemical
marker.
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Article info
Publication history
Received in revised form:
March 5,
1987
Received:
November 3,
1986
Identification
Copyright
© 1988 Published by Elsevier Inc.
