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PubMed1988

Trends in temperament research.

The paper focuses on current concepts of temperament that has led to different approaches within the field of temperament research. The concept of temperament has interested scholars from ancient Greece until modern European and American research teams. Also in Soviet psychology temperament is getting attention. In Finland temperament research has advanced on two different lines. There is widespread agreement that temperament is a group of related traits and not just one trait attributed to the child. Controversy exists as to what extent temperament is an inborn characteristic of the child and to what extent temperament is born in the interactions between the child and his environment. Although there is controversy between structural and functional approaches, there is consensus of some points. First: temperament is generally regarded as a tendency existing over long periods of time rather than being visible in single behavioral acts. Second: temperament traits are genetically transmitted and this biological basis has been shown in several twin studies. Temperament concerns differences between individuals and not species-general characteristics. Temperament research has a tradition of putting emphasis on infancy. In adulthood temperament traits are more difficult to pin down. Pioneering researchers in the field, Chess and Thomas, have suggested that pure temperament traits might in adult personality be seen only in situations where new environmental challenges render former coping skills ineffective. Temperament research is still very scarce concerning adult personality though there are some studies about the role of affect in adult personality. Two basic temperament traits are generally accepted: activity level and emotionality, for the rest there are disagreements.(ABSTRACT TRUNCATED AT 250 WORDS)

Humans↗
PubMed1988

Temperament in children delivered by vacuum extraction.

Thomas and Chess's temperament variables were studied via questionnaires in two samples of children delivered by vacuum extraction and in a standardization sample at six months and at one and two years of age. Temperament was not systematically related to vacuum extraction delivery per se or to its indications or to offspring neonatal somatic impairment.

Brain Damage, Chronic↗
PubMed1989

Temperament and individuality: a study of Malay children.

Malay parents of 40 infants and preschool children were interviewed using translations of temperament questionnaires by Thomas and Chess, and by Carey. Similarities and differences between Malay children and previously studied American children are discussed, and relationships suggested among temperament ratings and Malay child-rearing practices and values.

Child Rearing↗
PubMed1992

Working memory.

The term working memory refers to a brain system that provides temporary storage and manipulation of the information necessary for such complex cognitive tasks as language comprehension, learning, and reasoning. This definition has evolved from the concept of a unitary short-term memory system. Working memory has been found to require the simultaneous storage and processing of information. It can be divided into the following three subcomponents: (i) the central executive, which is assumed to be an attentional-controlling system, is important in skills such as chess playing and is particularly susceptible to the effects of Alzheimer's disease; and two slave systems, namely (ii) the visuospatial sketch pad, which manipulates visual images and (iii) the phonological loop, which stores and rehearses speech-based information and is necessary for the acquisition of both native and second-language vocabulary.

Brain↗
PubMed1996

Expert and exceptional performance: evidence of maximal adaptation to task constraints.

Expert and exceptional performance are shown to be mediated by cognitive and perceptual-motor skills and by domain-specific physiological and anatomical adaptations. The highest levels of human performance in different domains can only be attained after around ten years of extended, daily amounts of deliberate practice activities. Laboratory analyses of expert performance in many domains such as chess, medicine, auditing, computer programming, bridge, physics, sports, typing, juggling, dance, and music reveal maximal adaptations of experts to domain-specific constraints. For example, acquired anticipatory skills circumvent general limits on reaction time, and distinctive memory skills allow a domain-specific expansion of working memory capacity to support planning, reasoning, and evaluation. Many of the mechanisms of superior expert performance serve the dual purpose of mediating experts' current performance and of allowing continued improvement of this performance in response to informative feedback during practice activities.

Journal Article↗
PubMed1989

Efficacy of tianeptine in anxious-depressed patients: results of a controlled multicenter trial versus amitriptyline.

265 adult outpatients with dysthymic disorder (DSM-III) associated with clinically manifest anxiety (according to FDA criteria) were included in a multicenter, randomized double-blind study. The trial consisted of three phases: placebo pretreatment phase and inclusion in the trial, treatment phase, placebo posttreatment phase. Patients were treated in monotherapy for 42 days with a mean dosage of 3 tablets per day corresponding to 37.5 mg/day of tianeptine or 75 mg/day of amitriptyline respectively. The following assessment instruments were used: the Montgomery and Asberg Depression Rating Scale (MADRS), the Hamilton Anxiety Rating Scale (HARS), and the Check-List for the Evaluation of Somatic Symptoms of J.D. Guelfi and C.B. Pull (CHESS 82). Analysis of MADRS total scores showed an important and rapid improvement in tianeptine and amitriptyline groups, reaching statistical significance as soon as D7. At the end of the 6-week treatment period the tianeptine group reached a decrease of 64% in the initial MADRS total score versus 69% in the amitriptyline group. 78% of patients treated with tianeptine and 83% of patients treated with amitriptyline were considered as treatment responders. There was no difference in drop-out rates between the two groups. HARS scores showed a decrease in psychic as well as somatic anxiety in both groups. The action of tianeptine on anxious-depressive symptomatology was confirmed by the concomitant improvement of global clinical rating and patients' self-rating (HSCL). Statistical comparison of all clinical rating-scale scores in patients having completed the trial failed to show any significant group differences.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1991

The Sicilian gambit. A new approach to the classification of antiarrhythmic drugs based on their actions on arrhythmogenic mechanisms. Task Force of the Working Group on Arrhythmias of the European Society of Cardiology.

The Queen's Gambit is an opening move in chess that provides a variety of aggressive options to the player electing it. This report represents a similar gambit (the Sicilian Gambit) on the part of a group of basic and clinical investigators who met in Taormina, Sicily to consider the classification of antiarrhythmic drugs. Paramount to their considerations were 1) dissatisfaction with the options offered by existing classification systems for inspiring and directing research, development, and therapy, 2) the disarray in the field of antiarrhythmic drug development and testing in this post-Cardiac Arrhythmia Suppression Trial (CAST) era, and 3) the desire to provide an operational framework for consideration of antiarrhythmic drugs that will both encourage advancement and have the plasticity to grow as a result of the advances that occur. The multifaceted approach suggested is, like the title of the article, a gambit. It is an opening rather than a compendium and is intended to challenge thought and investigation rather than to resolve issues. The article incorporates first, a discussion of the shortcomings of the present system for drug classification; second, a review of the molecular targets on which drugs act (including channels and receptors); third, a consideration of the mechanisms responsible for arrhythmias, including the identification of "vulnerable parameter" that might be most accessible to drug effect; and finally, clinical considerations with respect to antiarrhythmic drugs. Information relating to the various levels of information is correlated across categories (i.e., clinical arrhythmias, cellular mechanisms, and molecular targets), and a "spread sheet" approach to antiarrhythmic action is presented that considers each drug as a unit, with similarities to and dissimilarities from other drugs being highlighted. A complete reference list for this work would require as many pages as the text itself. For this reason, referencing is selective and incomplete. It is designed, in fact, to provide sufficient background information to give the interested reader a starting frame of reference rather than to recognize the complete body of literature that is the basis for this article.

Animals↗
PubMed1999

Propagating distributions up directed acyclic graphs.

In a previous article, we considered game trees as graphical models. Adopting an evaluation function that returned a probability distribution over values likely to be taken at a given position, we described how to build a model of uncertainty and use it for utility-directed growth of the search tree and for deciding on a move after search was completed. In some games, such as chess and Othello, the same position can occur more than once, collapsing the game tree to a directed acyclic graph (DAG). This induces correlations among the distributions at sibling nodes. This article discusses some issues that arise in extending our algorithms to a DAG. We give a simply described algorithm for correctly propagating distributions up a game DAG, taking account of dependencies induced by the DAG structure. This algorithm is exponential time in the worst case. We prove that it is #P complete to propagate distributions up a game DAG correctly. We suggest how our exact propagation algorithm can yield a fast but inexact heuristic.

Algorithms↗
PubMed1979

[The "bad mother" to the vulnerability of the parent child relationship].

This paper summarizes the results of a longitudinal study on young asthmatic children and particularly on the mother-child relationship in this illness: At both observation times--14 to 30 months and 4 to 6 years--the majority of the children appeaed to be developing in a very adequate manner, both in the area of autonomy and opposition. Similarly, in most situations, the mothers appeared quite adequate in the face of their child's illness, and mother-child relationships, generally, seemed harmonious. However, a certain vulnerability in the area of opposition was more marked in a few cases, more frequently between 4-6 years than between 14-30 months. The author attempts a brief history of the development of the concept of the "bad mother" who has become a scapegoat not only in childhood asthma but also in many illnesses encountered in child psychiatry. In questioning the role which may have been played by dynamic theories in this evolution, psychoanalytic writings are reviewed (for example, S. Freud, M. Klein, Spitz, Brody) and it is hypothesized that psychoanalytic theory has had more of a catalytic than a causal influence in relation with a strong tendency in our culture to the eclosion of negative attitudes toward the mother in her relationship with her child. The emphasis placed by North American culture on the nuclear family, the hypertrophy of the maternal function coupled with a paternal role much reduced in time, as well as the almost complete disappearance of maternal substitutes, have all probably greatly influenced the development of this concept of the "bad mother". The author notes however, that happily, in recent years some child development theories insist on the concept of mother-child interaction and on the mutual role that mother and child have on one another in their exchanges. A review is made of the work of Sander, Bowlby, Schaffer, Lewis and Rosenblum which demonstrates this new trend. The author also studies the question of vulnerability within parent-child relationships, leading to the appearance of child psychopathology, and discusses the development of methods which could help in its early detection. Recent attempts in this direction are reviewed, particularly those of Broussard, Gray et al., Lézine. The importance of Thomas and Chess' work is particularly underlined, which emphasizes the specific interaction between the temperamental characteristics of the child and the parents' specific responses to them, at all levels of development. More recent studies by Brazelton et al. and by Korner are also reviewed, suggesting a very early interaction between mother and child. The author concludes by briefly developing the preventive implications of these works and stressing the importance of closely following the efforts made at pre- and post-natal levels which may have much influence in the early prevention of psychopathology in parent-child relationships.

Asthma↗
PubMed1986

The impact of temperament in a school setting: an epidemiological study.

The authors present the results of an epidemiological study on a large non-clinical population-based sample of French speaking seven year-old children (N = 596) whose aim was to verify if a relation exists between temperament and outward-type or inward-type behavior problems in school. The Thomas and Chess' Parent Temperament Questionnaire, filled out twice by the parents over a four-week interval, was used to determine temperament. The Conners Teacher Questionnaire, filled out twice by the teachers over a four-week interval, was used to determine behavior problems in school. Five points emerge from this study. First, "difficult" temperament 'per se' is not associated either with outward-type or inward-type behavior problems in school. Second, a temperamental pattern of high activity and high approach with new stimuli predisposes boys to present outward-type behavior problems in school. Third, the temperamental traits of low adaptability or withdrawal with new stimuli predisposes girls to inward-type behavior problems in school. Fourth, the study demonstrates the importance of verifying if the associations between temperament and behavior problems are stable since, in the comparisons between results of the test with those of the retest, several of the associations found in one occasion failed to be replicated at the other. Fifth, the different influences of temperament according to sex emphasize the need to study boys and girls separately. Future studies should take into account interactions between parents/teachers and child temperament since these sex-related different influences of temperament could be related to the sex-related different attitudes of caretakers.

Child↗
PubMed1974

Application and evaluation of portable field instruments for measuring forced expiratory volume of children and adults in environmental health surveys.

In support of Health Effects Research Studies, pulmonary function tests are periodically administered to a large number of children. The ventilatory performance of these children is being evaluated by measuring the 0.75-sec forced expiratory volume (FEV(0.75)) with a waterless mechanical volume spirometer used in conjunction with an electronic timing unit. During a 1-yr testing period, operation with the volume spirometer and the EPA designed electronic timing unit proved to be highly successful. The volume spirometer was found to be more advantageous in conducting tests at remote field stations than the water spirometer and other electronic instruments which measure flow rate with a transducer element. The volume spirometer is lightweight, easy to operate, and has the capability of easy and accurate field calibration when used in conjunction with the electronic timing unit. Presently the volume spirometer and EPA designed electronic timing package are employed in all Community Health and Surveillance System (CHESS) pulmonary function testing studies.

Adult↗
PubMed1994

Changes in the treatment of abused children: a retrospective review of a practice.

Using the population of sexually abused children from three periods of my practice, I have described changes in my practice of play therapy over the past 30 years. These changes have come about in part due to the pioneering work of psychiatrists specializing in studies of development in children not designated as emotionally disturbed or mentally ill (Chess and Thomas, 1986; Greenspan, 1981; Winnicott, 1953, 1965, 1971) as well those who have described treatment techniques and theoretical constructs of the experience of traumatized children (Finkelhor and Browne, 1985; Terr, 1991). Because of these convincing works, I have been able to shorten treatment, and shift my goals from direct efforts at unconscious conflict resolution to the more indirect but more effective method of re-establishing maturational tracks through involvement of families, dialogue with children in multiple play techniques as well as words, and to plan ahead for these traumatized children. It remains to be seen what the eventual outcome of this change in treatment will be. Although I always ask families and children to keep in touch even by postcard, only about 20% of them do. Naturally, these are families that are doing well. I am not sure that this necessarily means the other 80% are not doing well but I simply do not know. Because all of these patients are known to one authority or another (police, Rape Centers, courts and Department of Welfare) it should be possible to plan long-term studies of treatment outcome at the time of the initial contact. It seems important enough to me to do this because betrayed trust has a very long lag time before its full effects may be seen in the adults these children become. Because there are so many cases of child abuse, defining the relative effectiveness and efficacy of different kinds of treatment could be useful in managing what is, in effect, a public health problem.

Adolescent↗
PubMed1995

Development and psychometric validation of the Mental, Physical, and Spiritual Well-Being Scale.

Due to the growing interest in holistic health and well-being, the Mental, Physical, and Spiritual Well-being Scale was developed. This well-being scale has 30 items and incorporates mental, physical, and spiritual subscales. An initial set of items was developed and 186 university students responded to these. An exploratory factor analysis was conducted using principal components analysis with varimax rotation (N=100) to reduce the number of items in the scale. Three factors were extracted based on the eigenvalues, loading coefficients exceeding 0.3, and the screen test. Ten items from each of the three factors were selected, reducing the number of items from 66 to 30. Another factor analysis, performed on 129 employees of the Commonwealth Scientific and Industrial Research Organisation and 229 students from Monash University, indicated three factors were representative of the mental, physical, and spiritual subscales. Test-retest reliabilities over 1 mo. ranged from 0.87 to 0.97 for the three subscales whilst internal consistency ranged from 0.75 to 0.85. Concurrent validity was examined using the General Health Questionnaire and the Spiritual Well-being Scale. The discriminant validity of the MPS was also explored using three activity groups nominated as highly physical (weight training) or highly mental (chess) or highly spiritual (prayer). Out of a total of 88 cases, 77.3% of these were correctly classified into their actual activity group based on their scores. Sample sizes were moderate and testing was of limited samples. More psychometric work is needed but preliminary findings indicate an accurate and reliable test.

Adult↗
PubMed2006

The Glance software package.

We describe the Glance software package, which takes advantage of tablet PC technology to control experiments that require participants to reconstruct complex stimuli, as with the Chase and Simon (1973) chess reconstruction task, and to present tests that require participants to refer briefly to critical displays, as with the digit-symbol task. Participants press the space bar, which allows access to the stimulus and, simultaneously, prohibits drawing on the tablet. At release of the space bar--or optionally, after some period of time--the stimulus is hidden, and the drawing tools are enabled. Output from Glance allows analysis as fine grained as each stroke or as coarse as the entire image.

Behavioral Research↗
PubMed1992

Memory recall in a process control system: a measure of expertise and display effectiveness.

Previous research has shown that memory-recall performance is correlated with domain expertise. In this study, a process control system was selected as a vehicle for conducting research on memory recall. The primary purposes of the present work were to determine if the classic expertise effects originally obtained in chess generalize to this novel domain and to evaluate the validity of memory recall as a measure of display effectiveness. Experts and novices viewed dynamic event sequences showing the behavior of a thermal-hydraulic system with two different displays, one that only contained information about the physical components in the system (P) and another that also contained information about higher order functional variables (P+F). There were three types of trials: normal, where the system was operating correctly; fault, where a single fault was introduced; and random, where the system's behavior did not obey physical laws. On each trial, subjects were asked to recall the final state of the system and to diagnose the system state. The P+F display resulted in superior diagnosis performance compared with the P display. With regard to memory, there was some evidence of an interaction between trial type and expertise, with experts outperforming novices but primarily on meaningful trials. In addition, memory for the subset of variables most critical to diagnosis was better with the P+F display than with the P display, thereby indicating that memory recall can be a sensitive measure of display effectiveness. The results also clarify a theoretical problem that has existed for some time in the literature, namely, the conditions under which expertise advantages are to be expected in memory-recall tasks. Collectively, these findings point to the potential benefits of adopting an applied context as a test bed for basic research issues.

Adult↗
PubMed2002

[Evaluation of t(1)-weighted black blood imaging using triple inversion recovery].

The black blood sequence, in which the blood signal is suppressed, fundamentally provides T(2)-weighted images. We developed a T(1)-weighted black blood sequence. This new sequence improved the triple IR sequence that uses three inversion pulses by continuously providing three inversion pulses. By so doing, the sequence lengthens the time from the third inversion pulse to data sampling. The new sequence sets the flip angle of the third inversion pulse to 95-110 degrees. Consequently, the difference in T(1) is emphasized in favor of the longitudinal magnetization component with the null point of blood. Data sampling uses the fast spin-echo sequence of a wide sampling bandwidth. The wide bandwidth shortens echo space. T(1)-weighted black blood images were obtained by these methods. Fat suppression is possible by using a CHESS pulse before data sampling.

Brain↗
PubMed1994

The comprehensive health enhancement support system.

This article describes the process of using needs assessment data to develop an interactive information technology specifically designed to support patients in a health-related crisis. The Comprehensive Health Enhancement Support System (CHESS) is an interactive information, social support, and problem-solving system that was developed by a team at the University of Wisconsin. This article looks at the program developed for breast cancer patients and their families.

Breast Neoplasms↗
PubMedDate not supplied

Patients unhappy, AHA/Picker say.

The American Hospital Association and The Picker Institute say Americans want more information and empowerment from their providers. Fully one-third of those surveyed by the organizations say they have problems getting answers to important health-related questions. Marketers need to reconsider their own assessments of patient satisfaction and get patients more information. CHESS, a computerized information-distribution package, provides one elegant--and cost-saving--example.

American Hospital Association↗