A cognitive‐emotional account of the shape of the probability weighting function

Research has shown a tendency of decision makers to overweight small probabilities and to underweight moderate and large probabilities. In standard treatments this is graphically modeled by an inverse S‐shaped probability weighting function. We suggest that emotions play a significant role in the shaping of the probability weighting function. In particular, the weighting function is proposed to be some function of objective probability, expected elation, and expected disappointment. The overweighting of small probabilities results from the anticipated elation after having won, given that winning was very unlikely. The underweighting of large probabilities results from anticipated disappointment after having failed to win, given that winning was very likely. Hence, probability is assumed to influence utility. Three experiments investigate these hypotheses. Experiments 1 and 2 show that a convex function relates probability to surprise. Experiment 3 elicits choice data and further supports the proposed hypotheses. The model adds to the understanding of the cognitive and emotional processes underlying the shape of the probability weighting function. Copyright © 2002 John Wiley & Sons, Ltd.     

Stationäre oder teilstationäre Psychotherapie?

In a pilot study we compared two groups, one of inpatients and one of day clinic patients who were treated between January 1999 and December 2001 at the Department of Psychosomatics and Psychotherapeutic Medicine in Freiburg/Germany. Both settings offer a similar, multimodal and intensive psychotherapy program on a psychodynamic background. In a first explorative data analysis (sociodemographic data, SCL-90-R, IIP-C) we studied differences in severity of initial symptomatology and differences in outcome (prae/post). Patients with anorexia nervosa and a very low weight were preferentially treated in the inpatient setting. In addition the inpatient group of patients with a somatoform disorder showed higher degrees of somatization, as compared to patients with a somatoform disorder in the day clinic. Therapeutic change with respect to psychopathology however did not differ between the two settings: both groups showed a significant improvement during the course of therapy.     

A Multidisciplinary Approach to Sexual Behavior Profiles: The SEX360 Model

The diversity of sexual behaviors is driven by multiple determinants, including physiological, cultural, educational, and sociological factors. However, the definition of sexual behavior profiles has been barely addressed from a comprehensive point of view. We aimed to develop a multidisciplinary questionnaire for defining individual sexual behavior profiles. The questionnaire was developed by a panel of experts with research experience in the fields of urology, gynecology, psychology, anthropology, and sexology. The list of items was defined in a focus group session and was based on four categories—family-oriented, loving, recreational, and functional—resulting from the combination of two axes: traditional versus non-traditional and sexual benefit versus extra-sexual benefit. Real-time Delphi dynamics was used to assign a weight to each question and a bias to the corresponding responses. The final questionnaire included 50 items considered relevant for describing sexual profiles; the final questionnaire was named SEX360. Of the 50 items included in SEX360, 14 were considered essential for computing the final score; 9 of them were associated with 2 categories, 4 of them with 4 categories, and 1 of them with 3. Nine items referred to the category “family-oriented”, 10 to “loving”, 8 to “recreational”, and 9 to “functional”. The weights assigned to each question ranged from 3.00 to 4.33, and the centers of gravity ranged from 1 to 4. The questionnaire proposed shows the existence of a vast diversity of sexual behavior profiles and may serve as a tool for sexual behavior research.     

Standard and Short RoM Isokinetic Testing: Comparative Analysis in Identifying Submaximal Shoulder External Rotator Effort

An isokinetic-related parameter termed the difference between eccentric-concentric strength ratios at two distinct test velocities (DEC) based on 60° (standard) range of motion (RoM) has been proven to be highly efficient detecting feigned muscular efforts. This study aimed to verify whether a DEC derived from a much shorter test RoM (20°) was equally useful than a long RoM–derived one. Eighteen healthy men (32.4 ± 6.4 years old) took part in a study focusing on shoulder external rotation isokinetic strength. Participants performed a genuine shoulder external rotator maximal effort (eight pairs of concentric and eccentric contractions at high and low velocities at short and long RoM) and then instructed to feign maximal effort. Contraction velocities were adjusted accordingly by applying a 1:4 gradient and peak moments registered. Both condition DEC was then calculated by subtracting the eccentric and concentric strength ratios at low velocities from those at high velocities. DEC scores in the feigned effort were significantly higher than maximal effort ones in both conditions in men. It enabled the setting of specific cutoff levels for separating the efforts. Both approaches revealed a coincident sensitivity (78%) whereas short RoM showed an even higher specificity: 88% versus 78%. Thus, the short RoM protocol provides clinically acceptable detection power.     

Paniksyndrom

According to an ecologically oriented model, a panic syndrome may occur when a patient is blocking an impending and already initiated development in shaping his/her relational niche. Unconsciously he/she may constellate an outer relationship situation, that demands a previous avoided change in relationships, which can be utilized by therapy.     

On progress,values, and Marx

Marx, like many of his contemporaries, uncritically assumed that humanity develops from primitive beginnings to ever more perfect stages. In his theory of human development he measured progress by two main standards: the decrease of all forms of dependence, and the increase of universality in man's relations to nature and to his fellow man. In our century, not only have new structures of power and dependence emerged, but successive movements have also been generated to restore the more ordered and limited relationships of the past. If belief in progress is nowadays no longer self-evident, such a state of affairs can help us reflect on the conditions necessary to realize the values which determined Marx's categorical imperative, or his insistence that we overthrow all relations by which man is made a debased and enslaved being. One of these conditions is the voluntary limitation of our needs: the need to use material goods without regard for others, the need to build up or maintain security even at the cost of violence, and the need to restrict the circle of those with whom we identify to our own particular culture, race, class or ways of thinking and acting.     

离经叛道的“科学家”（二）

苏联解体后，人们精神空虚，社会上人心涣散，一片混乱。伪科学借此大行其道，一些不学无术的骗子，傲慢地夸夸其谈，以“新科学”的名义到处张扬，新闻媒体推波助澜。这些声称离经叛道的“科学家”构成了俄罗斯近几年来，伪科学强大的、有组织的努力。