Understanding Alcoholism Through Personality
Seth Grossman
Carrie Millon
Sarah Meagher
Rowena Ramnath
Cloninger
(1987a) proposed two types of alcoholism based on his model of neurobiological
personality dimensions. His Type 1 alcoholic is high in harm avoidance and
reward dependence and low in novelty seeking, a combination of traits similar
to the dependent and avoidant personalities. His Type 2 alcoholic is high in
novelty seeking but low in harm avoidance and reward dependence, a combination
of traits similar to the antisocial personality. Cloninger’s speculations are
interesting, if only because two personality types identified as being at risk
fall at opposite corners in the space defined by his conceptual model. The
avoidant-dependent type appears to drink as a retreat from the stresses of
life, and the antisocial type appears to drink more for the pure reinforcement
of intoxication.
Because
theory can only suggest possibilities, it must always be followed up by
empirical research. Studies have shown that the antisocial is indeed the most
common personality disorder among alcoholics (Hesselbrock, Meyer, & Keener,
1985). Other personality disorders, however, have also been observed. In
addition to the antisocial, Morgenstern, Langenbucher, Labouvie, and Miller (1997)
found high numbers of borderline and paranoid personalities. Although these
disorders have no exact parallel in Cloninger’s model, their vulnerability to
alcoholism can nevertheless be understood in terms of their characteristic
traits.
As
noted in DSM-IV, borderlines are disposed to indulge themselves impulsively in
self-damaging ways, including excessive spending, reckless driving, binge eating,
and substance abuse. Excessive alcohol consumption serves the same end. Moreover,
as the borderline personality has frequently been associated with mood swings and
chronic depression, it is likely that alcohol consumption represents a means of
self-medicating; that is, it is an attempt to “even out” the highs and lows of
their chaotic life. A similar story holds for the paranoid personality. Because
paranoids are, by definition, saturated with intense social avoidance, it is
likely that they find alcohol reinforcing because it calms otherwise
ever-present fears. In contrast, further research has found that alcoholism occurs
only rarely in the dependent personality.
Although
Cloninger’s original theory of alcoholism and personality disorders now appears
somewhat imperfect, the larger proposition—that alcoholism must be understood
in the context of the total personality— is nevertheless an enduring finding.
References
Personality Disorders in Modern Life,
second edition, 2000, 2004 by John Wiley & Sons, Inc.
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