Cees P. F. van der Staak

Verbal analysis of doctor-patient communication

A microscopic analysis of doctor-patient communication in the general practitioners surgery is presented. Verbatim transcripts of 85 medical interviews, audiotaped in a natural situation were analysed. The effects of type of complaint, patient gender and physician gender on the process of verbal communication were assessed. This study focused upon the relational aspects of communication, using Stiles Verbal Response Mode coding system (VRM), and, to a limited extent, upon the content of patients complaints--whether they were primarily somatic or of a psychosocial nature. The hypothesis of an asymmetrical relation between physician and patient was confirmed. Results partially confirmed the hypothesis that interviews of psychosocial patients take more time than those of somatic patients. There was also some evidence that psychosocial patients try to exert more control over the conversation as compared to somatic patients. Male and female patients differed in the way they elaborated their complaints. When telling their complaints, women referred more to persons (family, friends, colleagues) than did men. In case of male GPs, the interviews of female patients took more time than those of male patients. The largest differences were between male and female physicians. In agreement with the hypothesis males were more imposing and presumptuous (giving more advisements and interpretations). Female GPs were more attentive and non-directive (giving more subjective and objective information and acknowledgements). The medical interviews of female GPs took more time than the interviews of their male colleagues. The results are discussed in the light of theoretical concepts of harmony and discrepancy with respect to doctor-patient communication and theories about gender differences.

Tendency toward overeating and restraint as predictors of food consumption

Restrained eaters have repeatedly been found to overeat following a preload, which phenomenon is called the disinhibition effect. Remarkably, the disinhibition effect is only found when the restraint scale (RS) is used, and never when other measures of restraint, like the three-factor eating questionnaire (TFEQ) or the Dutch eating behavior questionnaire (DEBQ) are applied. Recent research has shown that tendency toward overeating appears to be a better predictor of food consumption than dietary restraint. The present study examines the predictive value of preload, tendency toward overeating and dietary restraint. An experiment was carried out with 209 female participants with the aim to evaluate whether the results of the study [Int J Eating Disorders 28 (2000) 333] are robust. In addition to the RS, the TFEQ and DEBQ were used to measure restraint and tendency toward overeating. Again, no disinhibition effect occurred, confirming the results of the previous study. Restraint, as measured by the three questionnaires, was not related to food consumption. In contrast, tendency toward overeating was significantly related to food consumption. Restraint theorys contentions that dieting leads to overeating might be valid for only some dieters, namely those with a high tendency toward overeating.

Effects of nutritional supplements on aggression, rule-breaking, and psychopathology among young adult prisoners.

In an earlier study, improvement of dietary status with food supplements led to a reduction in antisocial behavior among prisoners. Based on these earlier findings, a study of the effects of food supplements on aggression, rule-breaking, and psychopathology was conducted among young Dutch prisoners. Two hundred and twenty-one young adult prisoners (mean age=21.0, range 18-25 years) received nutritional supplements containing vitamins, minerals, and essential fatty acids or placebos, over a period of 1-3 months. As in the earlier (British) study, reported incidents were significantly reduced (P=.017, one-tailed) in the active condition (n=115), as compared with placebo (n=106). Other assessments, however, revealed no significant reductions in aggressiveness or psychiatric symptoms. As the incidents reported concerned aggressive and rule-breaking behavior as observed by the prison staff, the results are considered to be promising. However, as no significant improvements were found in a number of other (self-reported) outcome measures, the results should be interpreted with caution.

Psychiatric disorders and personality characteristics of prisoners at regular prison wards

BACKGROUNDnDutch correctional officers are trained to observe prisoners with severe mental disorder. This behavioural approach is assumed to detect psychiatrically disordered prisoners with striking symptoms. On the basis of this screening procedure about 10% of the Dutch prison population is classified as needing special care or control. In the current study, what psychopathology can still be found among the remaining 90% prisoners residing at regular wards is investigated and which personality traits characterize them. When the prevalence of major mental illness would still turn out to be high in this group, the question arises whether the current, rather unstandardized, way of screening prisoners is sufficient.nnnAIMSnTo assess the prevalence of psychiatric disorders among adult Dutch prisoners on regular wards, and to determine the concurrent and convergent validity of self-report measures and their screening characteristics in such a sample.nnnMETHODn191 randomly selected prisoners admitted to the general wards were administered a number of tests (SCL-90, NEO-PI-R, MINI) during the first weeks of their incarceration.nnnRESULTSnIncluding substance abuse, 57% of the participants suffered from one or more Axis I disorders. About seven out of ten detainees with psychopathology as assessed with the MINI did not receive professional help. The concurrent and convergent validity of the SCL-90 and the NEO-PI-R turned out to be reasonable. The predictive validity of self-report measures in detecting prisoners with an Axis I disorders or suicide risks was moderate.nnnCONCLUSIONSnThe Dutch behavioural approach seems to be quite accurate in detecting prisoners with psychotic disorders. Most prisoners with other mental disorders on regular wards, however, did not receive professional help. The current study suggests that self report scales such as the SCL-90 and the NEO-PI-R may be helpful in screening detainees on important DSM-IV disorders.

Alcohol and social anxiety in women and men: Pharmacological and expectancy effects

A replication study was conducted to determine pharmacological and expectancy effects of alcohol on self-reported anxiety in a social interaction situation. Thirty-two male and thirty-two female social drinkers were randomly assigned to four conditions in a 2 x 2 factorial balanced placebo design, controlling for drink content and expectations. Results show that in women alcohol expectancy reduced self-reported anxiety, whereas in men there was no significant effect of expectancy. Alcohol consumption reduced anxiety in both men and women. Controlling for beliefs increased some of the effects we found. We conclude that although cognitive factors do mediate the effects of alcohol on self-reported anxiety, this influence seems to be different for men and women and the role of pharmacological factors might be more crucial.

Absence of a disinhibition effect of alcohol on food consumption.

Alcohol is frequently mentioned as a disinhibitor of restrained eating behavior although only a small number of studies have investigated this disinhibition effect. The present study was conducted to fill this gap. A total of 116 female college students participated in a questionnaire-based assessment and a taste-test experiment. Before the taste test, half of the participants consumed a preset amount of alcohol-laced orange juice, the other half were given plain orange juice. The dependent variable was the amount of savory crackers eaten during the taste test. The Dutch Eating Behavior Questionnaire (DEBQ), the Three-Factor Eating Questionnaire (TFEQ), and the Restraint Scale (RS) were used to measure eating behavior dimensions, which formed the independent variables in various regression analyses. No disinhibition effect was found. On the contrary, participants scoring high on restraint (DEBQ, TFEQ) proved to consume even less food than those having lower scores. Participants that rated high on the scales measuring tendency toward overeating consumed more food than participants with low scores. These results support earlier contentions that the validity of the Restraint Theorys statement that dieting leads to overeating is questionable.

No effect of negative mood on the alcohol cue reactivity of in-patient alcoholics

Forty in-patient alcoholics were exposed to an alcohol cue (holding and smelling an alcoholic drink) while in a negative mood, and while in a neutral mood. For the negative mood condition either a distressing or depressing Mood Induction Procedure (MIP) was used. In the control condition, a neutral MIP was used. In the negative mood condition, the subjects were found to be more distressed, more irritated, less calm, and less satisfied than in the neutral mood condition. In all conditions, following exposure to the alcohol cue, the desire to drink, systolic blood pressure, and heart rate variability increased, while self-efficacy beliefs to resist the urge to drink, and heart rate decreased. In sum, alcohol cue reactivity was observed, but not in response to a negative as opposed to a neutral mood or a distressed versus a depressed mood.

Shared decision-making: increases autonomy in substance-dependent patients.

This study examines the effect of a shared decision-making intervention (SDMI) on patients’ and clinicians’ self-perceived interpersonal behavior. Clinicians (n = 34) in three addiction treatment centers in the Netherlands were randomly assigned to SDMI or treatment decision-making as usual. Patients receiving inpatient treatment in 2005–2006 were included (n = 212). Baseline characteristics were measured by the European Addiction Severity Index (EuropASI) and the Composite International Diagnostic Interview—Substance Abuse Module (CIDI-SAM). Treatment goals were assessed using the Goals of Treatment Questionnaire (GoT-Q) plus a Q-sort ranking procedure. Interpersonal behavior was measured by Interpersonal Checklist—Revised (ICL-R) at baseline, end of treatment, and 3-month follow-up. Repeated measures analyses of variance and multiple hierarchical linear regression analysis were used. The key finding of this study was that SDMI is associated with an increase of patient autonomy (independent behavior) and control behavior. The study limitations have been noted.

The effects of alcohol, expectancy, and alcohol beliefs on anxiety and self-disclosure in women: Do beliefs moderate alcohol effects?

This study investigates the effects of alcohol, expectancy, and alcohol-related beliefs on self-reported anxiety and self-disclosure behavior in a social interaction situation. Seventy-two female social drinkers were assigned to eight conditions in a 2 x 2 x 2 factorial balanced-placebo design, controlling for drink content, expectancy, and beliefs. Results show that alcohol expectancy resulted in an anxiety reduction in subjects who believed that alcohol has a positive influence on social behavior, whereas expectancy had no effect in subjects with negative alcohol beliefs. Furthermore, subjects who expected alcohol were less anxious when they had positive alcohol beliefs than when they had negative beliefs, whereas beliefs made no difference in subjects who expected tonic. Our results suggest that the effect of alcohol expectancy on social anxiety in women is moderated by differences in the content of their alcohol-related beliefs. We conclude that the inconsistency in previous results about the effect of alcohol expectancy on social behavior might be explained by differences in subjects alcohol beliefs. Finally, as neither of the three factors had any effect on self-disclosure behavior, we suggest that this behavioral measure is unrelated to self-reported anxiety.

Measuring criminal thinking styles: The construct validity and utility of the PICTS in a Dutch prison sample

Purpose: Criminal thinking and thinking styles are important areas in the assessment and treatment of offenders. The Psychological Inventory of Criminal Thinking Styles (PICTS: Walters, 2005) is designed to assess such criminal thinking styles. In the current study, the associations between criminal thinking styles on the one hand, and criminal histories, personality traits, and mental disorders of Dutch prisoners on the other, were explored. The aim is to test the reliability and construct validity of the PICTS in a population of male Dutch detainees. Methods: A sample of 191 randomly selected male prisoners of a large Dutch correctional institution were assessed by means of the PICTS, NEO-PI-R, and the MINI psychiatric interview. Prison inmates with very severe psychiatric symptoms and severe disruptive behaviours were excluded. Results: The psychometric qualities of the PICTS were found to be fair-to-good. The construct validity of the PICTS was supported by various convergent results with the criminal antecedents of the offenders, as well as with the scores on the scales measuring personality traits and psychiatric disorders. Conclusions: The associations between criminal thinking styles on the one hand and personality traits, antisocial personality disorder, and mental disorders on the other were rather strong. The current results suggest that the PICTS may be a valid and useful tool for assessing criminal thinking styles.