Multivariate analysis with linearizable regressions

We study the class of multivariate distributions in which all bivariate regressions can be linearized by separate transformation of each of the variables. This class seems more realistic than the multivariate normal or the elliptical distributions, and at the same time its study allows us to combine the results from multivariate analysis with optimal scaling and classical multivariate analysis. In particular a two-stage procedure which first scales the variables optimally, and then fits a simultaneous equations model, is studied in detail and is shown to have some desirable properties.     

Visual working memory in young children

Five experiments investigated immediate memory for drawings of familiar objects in children of different ages. The aims were to demonstrate younger children’s greater dependence on visual working memory and to explore the nature of this memory system. Experiment 1 showed that visual similarity of drawings impaired recall in young (5-year-old) children but not in older (10-year-old) children. Experiment 2 showed that younger and older children were affected in contrasting ways when the temporal order of recall was manipulated. Experiment 3 explored a recency effect found in backward recall and investigated its sensitivity to the presentation modality of materials used to produce retroactive interference (RI). For younger children, recency was reduced by visual but not by auditory-verbal RI; for older children, recency was more sensitive to auditoryverbal RI. Experiment 4 confirmed the effect of visual RI on visual recency in young children and showed that the same RI had little effect on their recall of spoken words. These results confirm younger children’s dependence on visual working memory. A final experiment showed that the effects of visual similarity and visual RI are additive, suggesting that they reflect different modes of accessing stored visuospatial information. Implications of these findings for developmental issues and for the nature of visual working memory are discussed.     

Medical ethics in Poland

The work related to medical ethics written by Polish authors are reviewed and some topics concerning teaching and various other activities in this field are presented. The attention is centered on the opinions and attitudes concerning the essence of medical profession and the personal model of the physician, doctor-patient relationship (including duties of the doctor), medical research on humans, abortion and other problems. The role of medico-ethical tradition in Poland is described. Main trends in polish ethical thought in relation to medicine are taken into consideration. General aspects of medical ethics in present-day Poland are tentatively characterized.     

Ethical and methodological aspects of medical computer data bases and knowledge bases

Ethical problems are related to computer data bases, containing data on individuals and groups of persons, as well as to computer knowledge bases, containing general rules and elements of expert systems.In the present essay the following conclusions are made regarding computer data bases: privacy, security, and confidentiality of medical computer data bases should be ensured. This duty should rest with physicians in hospitals. The principle of informed consent should be applied to gathering information which is to be stored and processed by computers. Information stored in computer data bases should not be used for purposes for which the subjects (patients as well as personnel) have not given their consent. In order to decrease the possibility of misuses of medical data bases containing information on individuals, these registers should not be linked to other central data bases.     

Emotion as a key concept in temperament research

A review of the literature shows that there is a growing interest in temperament that has developed in parallel to studies of emotion. The author adopts a historical perspective on the relationship between temperament and emotion and shows the place of emotion in current research on temperament. From this point of view, emotion may be considered as a trait mostly identified as emotionality (six different conceptions of emotionality have been proposed), as a specific affective-motivational process, as a hedonic tone determined by specific limbic structures, and as a behavioral characteristic described in terms of intensity and temporal parameters. Some theories of temperament concentrate only on one of the roles of emotion mentioned above, whereas in other theories several roles of emotion are exposed.     

Attention deficit,conduct, oppositional,and anxiety disorders in children: III. Laboratory differences

Children aged 5–13 years with DSM-III diagnoses of Attention Deficit (ADDH), Anxiety, (ANX), or Conduct plus ADDH (HC) Disorder and matched normal controls were compared on a set of laboratory measures of impulsivity, arousal, motor performance, activity level, and cognition, and on behavior ratings during testing. While ANX patients did not differ from their controls, ADDH and HC patients did on Verbal IQ, most of the behavior ratings, and on about one-third of the test variables. ANX patients were about 1 year older, and more likely to be female, than ADDH and HC patients. When age, sex, and verbal IQ effects were partialed out, very few differences among the three diagnostic groups remained. The importance of precise control of such variables is emphasized and the impact of the failure to do so in past studies is discussed. The question is raised whether the deficit in verbal IQ is not so much a defect of matching as the essential feature of ADDH from which most of the other commonly reported cognitive symptoms stem.This research was supported by the Medical Research Council of New Zealand.     

Multiple family therapy in a residential setting for adolescents*

Treating severely disturbed adolescents in a residential setting without including the family seems impossible. Several ways of letting the family participate in the clinical treatment are discussed. The focus of this article lies in multiple family therapy: groups of family members, adolescents and staff are treating each other. The objects of these meetings are manifold: to modify the stereotyped views that all the participants have of each other, to reduce the isolation of the family which is created by their child's admission, to stimulate interaction and mutual correction between family members, adolescents and staff, and to create a warm-up for and understanding of family system therapy. These multiple family sessions, which take place in a clinic with sixty disturbed adolescents, have a strong influence on the entire therapeutic process. Their impact is felt in the group psychotherapy, psychodrama and other forms of therapy.