High Harm Avoidance Research Articles

Preference for higher sugar concentrations and Tridimensional Personality Questionnaire scores in alcoholic and nonalcoholic men.

Animal studies have shown a positive association between the consumption of high concentrations of sweet solutions and subsequent alcohol intake. In a previous clinical study, it was shown that a preference for a high (0.83 M) concentration of sucrose (sweet liking) is characteristic of alcoholics, compared with controls. The present study was designed to determine whether personality variables, reported to be associated with subtypes of alcoholism, differentiate sweet liking alcoholics from sweet liking controls. Fifty-two male controls and 26 alcoholic patients were tested for sweet preference and administered the Tridimensional Personality Questionnaire. Sweet liking alcoholics scored significantly higher on the Tridimensional Personality Questionnaire Novelty Seeking and Harm Avoidance scales and related subscales when compared with sweet liking controls. Further analysis showed that preferred sucrose concentration, Harm Avoidance score, and Novelty Seeking predicted alcoholic versus nonalcoholic group status at 65% sensitivity and 94% specificity, with a correct classification in 85% subjects. We hypothesize that sweet liking may identify a specific alcoholism subtype also characterized by high novelty seeking and high harm avoidance. These findings may have theoretical biological significance and practical clinical implications.

Temperament and personality features in panic disorder with or without comorbid mood disorders.

Personality and temperament features, assessed with the Structured Interview for DSM-III-R Personality Disorders-Revised (SIDP-R) and the Tridimensional Personality Questionnaire (TPQ), respectively, were evaluated in 62 patients affected by panic disorder with (PD + MD) (n = 22) or without comorbid mood disorder (PD) (n = 40). A significant difference in the prevalence of personality disorders (PD + MD, 86% vs. PD, 62%; P < 0.05), particularly dependent (PD + DM, 50% vs. PD, 17%; P < 0.01) and borderline (PD + DM, 9% vs. PD, 0%; P = 0.05) personality disorders, was observed between the groups. Moreover, patients in the PD + MD group had higher scores for harm avoidance (PD + MD, 22.2 +/- 5.6 vs. PD, 26.9 +/- 5.1; P < 0.05) than patients in the PD group. The harm avoidance score in PD patients was significantly related to personality disorder and not to MD, suggesting that harm avoidance is not associated with greater severity of the illness. Our data confirm the hypothesis that subjects with higher harm avoidance scores have a greater probability of being affected by cluster C personality disorders and comorbid mood and anxiety disorders.

Cloninger's tridimensional theory of personality and psychopathology: applications to substance use disorders.

To evaluate studies that applied Cloninger's tridimensional theory of personality to substance abusers. Medline and PsychInfo data bases were searched for studies published between 1986 and mid-1995 that used the Tridimensional Personality Questionnaire (TPQ). A supplemental manual search was conducted to identify additional evaluations of the tridimensional theory. Reports were reviewed if they included substance abusers or related tridimensional traits to substance use measures. Factor analyses did not consistently support the tridimensionality of the TPQ. Novelty Seeking (NS) traits distinguished alcoholics from nonalcoholics, Type B and Type 2 alcoholics from their Type A and Type 1 counterparts, smokers from nonsmokers, and individuals (substance abusers and nonabusers) with and without antisocial personality disorder (ASPD). Tridimensional traits independently predicted early onset alcohol abuse and serious delinquency in studies that did not employ the TPQ and were significantly associated with concurrent substance abuse among adolescents. Most studies that compared nonalcoholic youth with positive and negative family histories of alcoholism reported nonsignificant TPQ differences or very small effects. Few alcoholics, cigarette smokers or sons of alcoholics displayed Type 1 (low novelty seeking, high harm avoidance, high reward dependence) or Type 2 (high novelty seeking, low harm avoidance, low reward dependence) TPQ profiles, but rarely were levels of tridimensional traits determined by reference to established norms. NS predicts early onset alcohol abuse and criminality and discriminates alcoholics exhibiting antisocial behavior and persons with ASPD from their nonantisocial counterparts. Findings for the Harm Avoidance (HA) and Reward Dependence TPQ subscales are much less consistent. Some support for the role of elevated HA in intensity of substance use has been adduced. At present, the utility of the TPQ for prevention or clinical purposes is not well established.

Temperament dimensions explain the comorbidity of psychiatric disorders

The comorbidity of DSM-III-R axis I and axis II disorders presents conceptual and nosological challenges to psychiatry. In a consecutive series of 164 psychiatric outpatients and 36 healthy controls in Milan, Italy, psychopathology was measured by structured interviews for DSM-III-R disorders and temperament was measured by the Tridimensional Personality Questionnaire (TPQ). Low reward dependence (RD) distinguished cluster A personality disorders and no axis I disorders. High novelty seeking (NS) characterized cluster B personality disorders and patients with eating disorders, alcohol abuse, or substance abuse. High harm avoidance (HA) characterized all cluster C personality disorders and patients with mood or anxiety disorders. The temperament dimensions were nearly independent of one another, but patients often had multiple DSM-III-R diagnoses. The joint relations of these disorders to multiple temperament dimensions accounted for their characteristic patterns of comorbidity. These findings support the hypothesis that interactions among temperament dimensions during development influence comorbidity between axis I and axis II disorders.

Harman and Norharman in Alcoholism: Correlations with Psychopathology and Long‐Term Changes

In the search for mechanisms specific for alcoholism, it has become evident that beta-carbolines (BCs; e.g., harman and norharman) are compounds that may act on brain reward systems, thereby mediating an increase in voluntary ethanol (ETOH) drinking in animals. This study was undertaken to analyze relationships between these compounds and clinical variables (e.g., family history, personality data, and affect) in alcoholics and to trace the time course of blood concentrations in subjects abstaining from alcohol for at least 6 months. Nonalcoholics were investigated during sober and ETOH-loading conditions (1 g ETOH/kg body weight). Levels of harman were elevated in the chronically intoxicated alcoholics and correlated with the scores on the self-rating depression (SDS) and the self-rating anxiety (SAS) scales. The group of alcoholics with at least one alcoholic parent had higher levels than the group without such a history. Levels remained elevated for 6 months. Norharman levels were only slightly elevated on the day of admission. They were correlated to high harm avoidance and SDS scores. A family history of alcoholism and the severity of alcoholism as assessed by the number of ICD-10 criteria fulfilled were correlated with norharman levels. Long-term observation revealed elevated levels of norharman after 3 months of abstinence, but not after 6 months. The association of harman levels with anxiety and depression demonstrated in the present study suggests that alcoholics with high harman levels use alcoholic beverages as self-medication in an attempt to overcome possible anxiogenic/depressiogenic actions of harman. Norharman levels are less strongly associated with these mood states, but significantly correlated to harm avoidance tendencies. It has been suggested that the activity of the indolergic neurons is relatively high in individuals with a high harm avoidance score. Biosynthesis of norharman might be stimulated under these conditions (tryptamine serves as precursor).

Towards an understanding of defense style in terms of temperament and character

The aim was to investigate the relationships between a model of personality based on the concept of defense mechanisms, as articulated by Vaillant, with the psychobiological model of personality, as developed by Cloninger. A total of 128 adults from 11 family pedigrees with at least two alcohol-dependent members completed the self-report Defense Style Questionnaire and the Temperament and Character Inventory. Immature defenses were largely explained by low character scores, while neurotic defenses were part temperament and part character. Cluster A, B and C defenses were related to low reward dependence, high novelty-seeking and high harm avoidance respectively. In a regression analysis, cluster B and C defenses were more related to low character scores than to temperament but, for cluster A defenses, temperament and character both contributed. The results suggest that it is possible to integrate an ego defense model of personality with a psychobiological model of personality, thereby enriching both approaches.

Temperament, character, and personality disorder in bulimia nervosa.

In a sample of 76 women participating in a clinical treatment trial for bulimia nervosa, we examined the clinical differences between subjects with and without concurrent personality disorders and the ability of "self-directedness" (a character scale of Cloninger's Temperament and Character Inventory) to predict the presence of personality disorder. Sixty-three percent of the sample had at least one personality disorder diagnosis. Fifty-one percent of personality disorders were in cluster C, 41% were in cluster B, and 33% were in cluster A. The presence of personality disorder was associated with greater depressive symptoms, worse global functioning, laxative use, greater body dissatisfaction, higher harm avoidance, and lower self-directedness. As hypothesized, low self-directedness scores were associated with a markedly increased probability of a personality disorder.

A comparison of Tridimensional Personality Questionnaire dimensions in bipolar disorder and unipolar depression

The harm avoidance (HA) personality dimension has been hypothesized to be a vulnerability factor for unipolar depression (UD) but not for bipolar disorder (BD). The reported difference on HA scores between these diagnostic groups may have been compromised by the assessment of BD patients who had not fully recovered. To test the diagnostic specificity of elevated HA scores and to elucidate whether assumptions about differences between patients with UD or BD might be attributed to the lingering effects of mood state, the Tridimensional Personality Questionnaire (TPQ) was administered to recovered patients with either BD or UD and a nonpatient comparison group. Both patient groups scored higher on the HA dimension than the nonpatient comparison group, but the patient groups did not differ from one another on this diension. Moreover, novelty seeking (NS) scores were elevated in subjects with BD compared with both UD patients and nonpatient subjects. These results suggest that high HA scores may be associated with a mood disorder diagnosis, whereas high NS scores may be associated with the BD subtype.

Temperament and early environment influence comorbidity and personality disorders in major depression.

Measures of temperament and early environment were obtained from 108 patients with major depression using the Tridimensional Personality Questionnaire (TPQ) and Parental Bonding Instrument (PBI). TPQ and PBI measures distinguished between depressed patients and controls. Depressed patients with comorbid axis I disorders appear to be temperamentally different from those who do not have these disorders. Those with alcoholism have higher novelty seeking (NS) scores; those with panic disorder have higher harm avoidance (HA) scores; and those with simple phobia have higher persistence (P) scores. More than half the patients had an axis II disorder. Those with a comorbid personality disorder recall worse parental care and have lower reward dependence (RD) scores. Individual personality disorders and DSM-III-R personality disorder clusters reflect to a significant degree underlying temperament as measured by the TPQ. These results suggest that it is possible to better understand the patterns of comorbidity between major depression, other axis I disorders, and personality disorders by studying the underlying temperament dimensions in these patients.

Differential diagnosis of personality disorders by the seven-factor model of temperament and character.

We used multiaxial structured interviews and questionnaires to evaluate the ability of self-reports on seven personality dimensions to predict independent interview diagnoses of DSM-III-R personality disorders. We studied 136 consecutive adult psychiatric inpatients, excluding those with psychosis, organic mental disorders, and severe agitation. Sixty-six patients had interview diagnoses of DSM-III-R personality disorders. Most also had mood disorders. We confirmed the hypotheses that self-reports of low self-directedness and cooperativeness strongly predicted the number of personality symptoms in all interview categories, whereas the other factors distinguished among subtypes as predicted. Self-directedness and cooperativeness also predicted the presence of any personality disorder by differentiating patients varying in risk from 11% to 94%. Patients in clusters A, B, and C were differentiated by low reward dependence, high novelty seeking, and high harm avoidance, respectively. We conclude that low self-directedness and cooperativeness are core features of all personality disorders and are validly measured by the seven-factor Temperament and Character Inventory, but not the five-factor Neuroticism-Extraversion-Openness inventory. Each DSM-III-R personality disorder category is associated with a unique profile of scores in the seven-factor model, providing an efficient guide to differential diagnosis and treatment.

Relationship of Tridimensional Personality Questionnaire scores and smoking variables in female and male smokers.

The Tridimensional Personality Questionnaire (TPQ) was developed by Cloninger (1986) to measure heritable variation in three patterns of response to environmental stimuli: novelty seeking, harm avoidance, and reward dependence. Cloninger (1987) used the TPQ to identify two types of alcoholism: Type 1 (low novelty seeking, high harm avoidance and reward dependence; both male and female) and Type 2 (high novelty seeking, low harm avoidance and reward dependence; predominantly male). To determine whether characteristic patterns exist in smokers, we administered the TPQ to 119 female and 121 male smokers, along with the Fagerstrom Tolerance Questionnaire (FTQ, a measure of nicotine dependence), the Russell Motives for Smoking Questionnaire (RMSQ), and the Spielberger State-Trait Anxiety Inventory (STAI/trait). Compared with a normative sample, our sample exhibited elevated scores on the Novelty-Seeking scale; female smokers were somewhat overrepresented in the highest quartile of the Harm-Avoidance scale; both genders tended to be clustered in the lower quartiles of the Sentimentality-Attachment-Dependence subscale of the Reward-Dependence scale and in the highest quartile of the Persistence subscale. Female smokers showed a significant positive association between Harm Avoidance and FTQ scores, and Harm Avoidance was positively correlated with several RMSQ factors (including Additive smoking) in both genders. These findings suggest that the likelihood of becoming a smoker may be a function of novelty seeking and reward dependence, whereas degree of dependence or addiction once the habit is entrained may be linked to harm avoidance. Our observations establish the potential utility of the TPQ as a tool for examining environmental and heritable variation in smoking behavior and may contribute to improved strategies for prevention and treatment of smoking.