Consequences of stereotype suppression and internal suppression motivation: a self-regulation approach

The present research studied the effects of suppression of stereotypes on subsequent stereotyping. Moreover, the moderating influence of motivation to suppress stereotypes was examined. The first three experiments showed that suppression of stereotypes leads to the experience of engaging in self-control (Study 1), to depleted regulatory resources as indicated by worse performance on an unrelated subsequent task that involves self-regulation (Study 2), and to hyperaccessibility of the suppressed thoughts (Study 3). However, these effects were moderated by internal suppression motivation: Increased self-control, depleted regulatory resources, and hyperaccessibility of suppressed thoughts only occur for people with low internal suppression motivation. Furthermore, in line with the argument that depletion of regulatory resources after suppression also should result in increased stereotyping in general, it was found that suppression of a specific stereotype leads to an increased use of stereotypes in general, but only for people with low internal suppression motivation (Study 4).     

Manual-based cognitive behaviour therapy for chronic fatigue syndrome: therapists' adherence and perceptions

Several randomized controlled trials have indicated that cognitive behaviour therapy is an effective treatment for chronic fatigue syndrome. In 1 of these studies 13 therapists applied cognitive behaviour therapy for chronic fatigue syndrome in 83 chronic fatigue syndrome patients. In the present study therapists' adherence and perceptions of the manual are studied. Following completion of the study the therapists were asked to complete a questionnaire. Audiotaped sessions were conducted to verify the therapists' adherence. Analyses of the audiotapes showed that in 87% of the sessions this appeared to be the case. The questionnaire revealed that the therapists found it more difficult to treat patients with chronic fatigue syndrome than to treat patients with psychological or other physical problems. Treatment aspects posing the most problems were integrating individual problems into the standardized treatment, dealing with the patients' lack of confidence in the treatment and handling insufficient motivation.     

Preference for copying unambiguous demonstrations in dogs (Canis familiaris)

In an earlier study (P. Pongracz et al., 2001), it was shown that human demonstration significantly enhances the detouring ability of dogs (Canis familiaris) around a V-shaped fence. The authors investigated the effect of the direction of the demonstrated detour and the dogs' detouring experience. They found that dogs' trial-and-error experience influences strongly the direction of the dogs' detours later, even if the demonstrator showed detours along the opposite side of the fence. However, dogs' preferences based on their own experiences were changed when the dogs observed demonstrations only on 1 side of the fence. Dogs with no trial-and-error experience followed the direction of 1-sided demonstrations. The change from dogs' own directions to the demonstrated directions seems not to be due to simple facilitative effects of social experience; the similarity with the demonstrated action depends on complex interactions between individual experience and socially provided information.     

(Re) defining salesperson motivation: current status,main challenges,and research directions

The construct of motivation is one of the central themes in selling and sales management research. Yet, to-date no review article exists that surveys the construct (both from an extrinsic and intrinsic motivation context), critically evaluates its current status, examines various key challenges apparent from the extant research, and suggests new research opportunities based on a thorough review of past work. The authors explore how motivation is defined, major theories underpinning motivation, how motivation has historically been measured, and key methodologies used over time. In addition, attention is given to principal drivers and outcomes of salesperson motivation. A summarizing appendix of key articles in salesperson motivation is provided.     

Effects of group membership and identification on categorization and subtyping in memory

A meta-analysis (N=229) was performed to test effects of group membership and identification on the use of (sub)categories across five of our own experiments. In each experiment a name matching paradigm was used to investigate the extent to which (sub)categories were used to organize social information in memory. Four subcategories (male students, female students, male teachers, female teachers) were available to categorize the stimulus persons, as a result of crossing sex and academic status. Comparing findings over studies yielded (a) a strong tendency to use subtypes to organize social information in memory; (b) no support for the prediction of stronger subtyping of ingroup members than of outgroup members; (c) support for the prediction that subjects high on identification with own-sex group would use subtypes within gender categories to a lesser extent than subjects low on identification with own-sex. (d) In addition, it appeared that sex and academic status were used as independent overall categorizations as well, although superordinate categorization effects were caused for a large part (75–87 per cent) by name-confusions within subcategories, which suggests a preference for the use of subtypes over superordinate categories. © 1998 John Wiley & Sons, Ltd.     

Is cognitive behaviour therapy for chronic fatigue syndrome also effective for pain symptoms?

Patients with chronic fatigue syndrome (CFS) frequently report chronic pain symptoms. Cognitive behavioural therapy (CBT) for CFS results in a reduction of fatigue, but is not aimed at pain symptoms. In this study, we tested the hypothesis that a successful treatment of CFS can also lead to a reduction of pain. The second objective was to explore possible mechanisms of changes in pain. The third objective was to assess the predictive value of pain for treatment outcome. Data from two previous CBT studies were used, one of adult CFS patients (n=96) and one of adolescent CFS patients (n=32). Pain severity was assessed with a daily self-observation list at baseline and post-treatment. The location of pain in adults was assessed with the McGill Pain Questionnaire (MPQ). Patients were divided into recovered and non-recovered groups. Recovery was defined as reaching a post-treatment level of fatigue within normal range. Recovered adult and adolescent CFS patients reported a significant reduction of pain severity compared to non-recovered patients. Recovered adult patients also had fewer pain locations following treatment. The decrease in fatigue predicted the change in pain severity. In adult patients, a higher pain severity at baseline was associated with a negative treatment outcome.     

Holistic face processing is mature at 4 years of age: evidence from the composite face effect

Although it is acknowledged that adults integrate features into a representation of the whole face, there is still some disagreement about the onset and developmental course of holistic face processing. We tested adults and children from 4 to 6 years of age with the same paradigm measuring holistic face processing through an adaptation of the composite face effect [Young, A. W., Hellawell, D., & Hay, D. C. (1987). Configurational information in face perception. Perception, 16, 747-759]. In Experiment 1, only 6-year-old children and adults tended to perceive the two identical top parts as different, suggesting that holistic face processing emerged at 6 years of age. However, Experiment 2 suggested that these results could be due to a response bias in children that was cancelled out by always presenting two faces in the same format on each trial. In this condition, all age groups present strong composite face effects, suggesting that holistic face processing is mature as early as after 4 years of experience with faces.     

Controlling your mind without ironic consequences: Self-affirmation eliminates rebound effects after thought suppression

Thought suppression can ironically lead to a rebound of unwanted thoughts [Wegner, D. M. (1994). Ironic processes of mental control. Psychological Review, 101, 34-52.]. The present research explored whether self-affirmation may eliminate rebound effects after thought suppression. Participants either suppressed or used stereotypes in an impression formation task. Subsequently, self-affirmation was manipulated by providing participants with positive or neutral personality feedback, and stereotype accessibility was assessed. The results showed that suppression led to a rebound of stereotypic associations among neutral-feedback participants, but not among positive-feedback participants. The authors conclude that self-affirmation enhances the efficiency of mental control.