A classificatory theory of similarity

Summary This paper outlines a classificatory theory of cognitive similarity and compares it to feature approaches. The theory assumes that similarity is a function of the number of classes contained in the universe referred to in the judgments and the number of elements contained in the class defined by the two comparison stimuli. The theory is tested in a number of studies in which verbal stimuli are used. Most of the experiments concern context effects predicted by the theory. An empirical comparison is made between the classificatory theory and a feature theory. It is argued that the classificatory theory accounts for some of the data more easily than a feature approach does. Some implications for the use of similarity data in multidimensional scaling are also discussed.     

Do women and men receive different care for sore throats?

Several studies have shown differences in the rates at which women and men receive treatment for several common medical problems, especially heart disease. The reason for these differences and the extent to which men and women receive different treatments for other problems is unclear. The purpose of the current study was to determine whether there are differences in the rates men and women receive antibiotic therapy for pharyngitis (sore throat), whether these differences are related to differences in disease severity or comorbidity across the sexes, and whether these differences could be due to prejudice against women by male clinicians. This was a retrospective analysis of data at two university student health services in Pennsylvania and Nebraska. Male clinicians did not prescribe antibiotics at significantly different rates for male and female patients, but female clinicians prescribed antibiotics more frequently for their male patients.The original data collection was supported in part by a grant from the National Library of Medicine, LM-04321.Presented in part at the Annual Meeting of the Society for Medical Decision Making, Portland, Oregon, October, 1992, and at the Third Primary Care Research Conference, Atlanta, Georgia, 1993.We thank Jane Kreisberg and Linda Rizjis for coordination of the collection of the original data, Linda Gray for help with data entry, and Cheryl Kull and Mary Martino for secretarial support. We are grateful to all the physicians who participated in the original study.     

Applying developmental previewing to the principles of family therapy

This paper discusses the application of principles of infant psychiatry to the diagnosis and treatment of multigenerational family conflict. Using a technique referred to as previewing, the therapist can focus on the interpersonal meaning that the infant's development precipitates in the family and determine how the parents' relationships with the infant replicate their relationships with their own families of origin. The therapist may then use these insights for overcoming conflict and for acclimating parents to new developmental skills in an optimal manner. Specific suggestions for how parents may promote more adaptive patterns of interaction with the infant using previewing are offered.     

A STUDY OF FOUR METHODS FOR SCALING PAIRED COMPARISONS DATA

An experiment of paired comparisons of nine lotteries is reported. Ratings were also made of apparent magnitude of difference in each pair. Conventional techniques as well as the author's correlational scaling method were applied on paired comparisons data. Ratings were analyzed according to successive intervals scaling. Non-linear relations between scales were found. Dispersion terms from correlational scaling covary with those from the analysis of ratings.     

Breaking the Habit: On the Highly Habitualized Nature of Meat Consumption and Implementation Intentions as One Effective Way of Reducing It

Reducing meat consumption is an important element of an effective climate protection strategy, but meat consumption is highly habitualized and therefore difficult to change. This article uses an extended version of the theory of planned behavior with habit strength as additional predictor. In one longitudinal (N?=?227) and one prospective correlational study (N?=?212), attitudes toward and perceived ease of meat consumption reduction explained about 60% of variance of meat consumption reduction intentions, with habit strength being the strongest correlate of actual self-reported meat consumption. A third experimental study (N?=?192) demonstrated that implementation intentions can be an effective strategy for realizing reduction aims. We discuss the central role of habits for meat consumption.     

Effects of medical resonance therapy music on patients with psoriasis and neurodermatitis—A pilot study

Stress medicine has shown that emotional disharmony can be a substantial factor for skin diseases. The harmonisation of the emotional status and a corresponding reduction of stress hormones by the Medical Resonance Therapy Music^® (MRT-Music) as shown in other studies (1,2,3,4) inspired us to investigate its benefits for patients with psoriasis vulgaris and neurodermatitis (neurodermatitis constitutionalis atopica). Over a period of 14 days we measured the parameters of blood pressure, heart rate, stimulus to scratch and the degree of sickness in two, respectively four groups of 68 patients in total: two experimental groups (psoriasis/neurodermatitis) and two control gropus. All patients received the normal treatment of our hospital, the experimental groups were additionally treated with 3 × 30 minutes of MTR-Music per day, while the controls were asked to somehow relax during this time. In the experimental groups the measurements showed to somehow relax during this time. In the experimental groups the measurements showed a reduction of blood pressure and heart rate and revealed an enhanced reduction of the stimulus to scratch and an enhanced reduction in the degree of sickness. Interestingly the effects of MRT-Music were stronger with the psoriasis patients than with the neurodermatitis patients. The results of this pilot study convinced us to offer the treatment with the Medical Resonance Therapy Music to all our patients.     

Terror management and stereotyping: why do people stereotype when mortality is salient?

Three studies examine two routes by which mortality threats may lead to stereotyping. Mortality salience may activate both a comprehension goal and an enhancement goal. Enhancement goals are likely to be more active in situations where intergroup competition or conflict is salient. If this is not the case, then a comprehension goal will predominate. In line with a why-determines-how logic, when mortality salience activates a comprehension goal, both positive and negative stereotyping occur. In contrast, the activation of an enhancement goal only increases negative stereotyping.     

Can exposure and acceptance strategies improve functioning and life satisfaction in people with chronic pain and whiplash-associated disorders (WAD)? A randomized controlled trial

Although 14% to 42% of people with whiplash injuries end up with chronic debilitating pain, there is still a paucity of empirically supported treatments for this group of patients. In chronic pain management, there is increasing consensus regarding the importance of a behavioural medicine approach to symptoms and disability. Cognitive behaviour therapy has proven to be beneficial in the treatment of chronic pain. An approach that promotes acceptance of, or willingness to experience, pain and other associated negative private events (e.g. fear, anxiety, and fatigue) instead of reducing or controlling symptoms has received increasing attention. Although the empirical support for treatments emphasizing exposure and acceptance (such as acceptance and commitment therapy) is growing, there is clearly a need for more outcome studies, especially randomized controlled trials. In this study, participants (N = 21) with chronic pain and whiplash-associated disorders were recruited from a patient organization and randomized to either a treatment or a wait-list control condition. Both groups continued to receive treatment as usual. In the experimental condition, a learning theory framework was applied to the analysis and treatment. The intervention consisted of a 10-session protocol emphasizing values-based exposure and acceptance strategies to improve functioning and life satisfaction by increasing the participants' abilities to behave in accordance with values in the presence of interfering pain and distress (psychological flexibility). After treatment, significant differences in favor of the treatment group were seen in pain disability, life satisfaction, fear of movements, depression, and psychological inflexibility. No change for any of the groups was seen in pain intensity. Improvements in the treatment group were maintained at 7-month follow-up. The authors discuss implications of these findings and offer suggestions for further research in this area.     

Suicidal Behavior in the Western Pacific Region: Characteristics and Trends

Current knowledge of suicidal behavior in the Western Pacific region is relatively limited when compared to other areas of the world. This area is characterized by a wide diversity of social, economic, and cultural aspects that do not permit any homogenous reading of suicide phenomena. Data from countries of the region included in this article suggest the existence of important differences among nations in terms of gender, age, and methods of suicide, as well role of mental illness. In addition, the Western Pacific region appears to be affected by higher rates of suicide than other areas in the world, with signs of progressive worsening in recent years and worrying predictions for the next two decades. The Suicide Trends in At‐Risk Territories (START) Study, initiated by the World Health Organization Regional Office in Manila, seeks to research the incidence of both fatal and nonfatal suicidal behavior in countries of the region and to implement interventions for suicide attempters. This ambitious project is expected to standardize data collection procedures and improve the knowledge cultural factors in suicide.