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Electrophysiological responses to affective stimuli in Mexican Americans: Relationship to alcohol dependence and personality traits

Academic Article
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Overview

authors

  • Criado, J. R.
  • Ehlers, Cindy

publication date

  • December 2007

journal

  • Pharmacology, Biochemistry and Behavior  Journal

abstract

  • The relationship between the P450 component elicited by affective stimuli and: a personal history of alcohol dependence, antisocial personality disorder/conduct disorder (ASPD/CD) or affective anxiety disorders (ANYAXAF) was examined in Mexican Americans, a group with high rates of heavy drinking. Data from two hundred and twenty two young adults between the ages of 18 and 30 were used in the analyses. ERPs were collected using a task that required discrimination between faces with neutral, sad and happy facial expressions. DSM-IIIR diagnoses were obtained using a structured interview and personality traits were indexed using the Maudsley personality inventory. Men had significantly diminished P450 responses, when compared to women which were further reduced in men with ASPD/CD; whereas, a significant increase in P450 amplitudes was seen in those participants with ANYAXAF. P450 amplitudes were also significantly increased in men with high extraversion scores and in women with high neuroticism scores. No significant associations were seen between the P450 amplitude and the diagnosis of alcohol dependence. These data suggest that interpretations of P450 responses in Mexican Americans need to take into account the interactions between gender, the affective valence of the eliciting stimuli, as well as psychiatric status.

subject areas

  • Adult
  • Alcoholism
  • Antisocial Personality Disorder
  • Anxiety Disorders
  • Evoked Potentials
  • Extraversion (Psychology)
  • Female
  • Humans
  • Male
  • Mexican Americans
  • Personality
  • Sex Characteristics
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Research

keywords

  • ASPD
  • Mexican Americans
  • P450
  • affective
  • affective stimuli
  • alcohol dependence
  • anxiety
  • emotion
  • extraversion
  • neuroticism
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Identity

PubMed Central ID

  • PMC2042967

International Standard Serial Number (ISSN)

  • 0091-3057

Digital Object Identifier (DOI)

  • 10.1016/j.pbb.2007.07.019

PubMed ID

  • 17764730
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Additional Document Info

start page

  • 148

end page

  • 157

volume

  • 88

issue

  • 2

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