Title of article :
Sociability/impulsivity and attenuated dopaminergic arousal: critical flicker/fusion frequency and procedural learning
Author/Authors :
Philip J. Corr، نويسنده , , Veena Kumari، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1997
Pages :
11
From page :
805
To page :
815
Abstract :
Two experiments examined the interaction of sociability (Soc) and impulsivity (Imp) components of extraversion and reduced dopamine activity (by haloperidol) on critical flicker/fusion frequency change scores (ACFFT) and procedural learning. In double-blind designs, subjects received either haloperidol (5 mg) or placebo; Soc and Imp were randomly sampled. In Experiment 1, Drug × Imp, and Drug × Imp × Soc interactions were found on ΔCFFT; in Experiment 2, a drug × Soc interaction was found on procedural learning. In both experiments, introverts seemed over-aroused under placebo (putatively due to the medical context), more optimally aroused under haloperidol; for procedural learning, extraverts seemed more optimally aroused under placebo, less optimally aroused under haloperidol. These data indicate that both Soc and Imp mediate the effects of arousal; Drug × Imp effects my conceal joint effects of Soc × Imp; and that Soc shows more consistent effects than Imp. These data complement a previous study of Soc/Imp and caffeine-induced arousal (Corr, Pickering & Gray, 1995), and lend support to H. J. Eysenckʹs (1967) arousal model of Extraversion.
Journal title :
Personality and Individual Differences
Serial Year :
1997
Journal title :
Personality and Individual Differences
Record number :
455965
Link To Document :
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