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Attention genes.

A major problem for developmental science is understanding how the cognitive and emotional networks important in carrying out mental processes can be related to individual differences. The last five years have seen major advances in establishing links between alleles of specific genes and the neural networks underlying aspects of attention. These findings have the potential of illuminating important aspects of normal development and its pathologies. We need to learn how genes and experience combine to influence the structure of neural networks and the efficiency with which they are exercised. Methods for addressing these issues are central to progress in the decade ahead.

Animals↗

Traps in the route to models of memory and decision.

It is proposed that the products of investigations of learning, memory, and decision over the last half century that are most likely to endure have resulted from interactions between models and experimental research. In this article, some of the traps that must be coped with to make fruitful interactions possible are examined and illustrated with case studies from research on probability learning, category learning, and recognition memory. Topics addressed include functions of models in research; the logic of model testing; fitting models to signal plus noise; values and hazards of averaging data; and potential contributions of neural science to the development of cognitive models.

Decision Making↗

[Hereditary (dysplastic) diseases of the joints].

Using the intentional procedures to reveal systemic semantic interrelations between different phenomena that form the causative-sequential chain in joint diseases of dysplasia genesis and assuming the pathology theory laws as a basis, applying the methodologies of different interdisciplinary sciences and the technology of cognitive simulation, the conceptual model "joint dysplasia--dysplasia arthrosis" was developed. This model depicts the characteristic features of joint dysplasia. The use of the model permitted one to base and describe a group of inherited (depressional) diseases of joints as an independent scientific orthopedo-arthrological problem. The application of the conceptual model confirmed its high cognitive and reforming role. Using this model on a knee joint new syndromes of dysplasia have been described; the system of roentgenometric diagnosis of dysplasia anomalies and new methods of surgical intervention have been elaborated; the foundation has been laid of prophylactic surgery aimed at the exclusion or at the minimizing of the risk of gonarthrosis in persons suffering from different inherited syndromes.

Humans↗

The effects of parents' assistance on middle school students' problem solving and achievement.

In this study the authors tested whether children's aptitudes in science were advanced in areas in which cognitive supports were generally present, particularly through interaction with more capable individuals. Mothers assisted their 7th-grade children in science activities. Differences in parent-child interaction were hypothesized to account for children's performance across 3 science tasks that differed in difficulty. A cooperative problem-solving style of interaction was identified through factor analysis. This interaction style was correlated significantly with the child's intellectual performance not only in the science tasks but also in school achievement. Development of science and other aptitudes in the context of activity variables that help bridge home and school cultures are discussed.

Achievement↗

Aliens among us: a representation of children in science fiction.

As a literary genre, science fiction has been largely ignored by psychoanalysis. Science fiction lends itself well to analytic interpretations since its structure embraces an attitude of "cognitive estrangement" (a term that defines the genre). Science fiction allows for the exploration of new and different permutations of seemingly ageless conflicts and concerns. One of the conflicts science fiction seems to address revolves about our fears regarding our children. These children become the "aliens" among us, as they seek to usurp parental power and authority. This issue is addressed through a study of two of Ray Bradbury's short stories. By manipulating the reader's experience of the "uncanny," Bradbury succeeds in tapping what appear to be prevalent and potent fears regarding children and, reflexively, the adults who produce them. Mechanisms involved in this play on "alienness" include projective identification of destructive aspects of the self, a resurgence of archaic superego forerunners constituted around primal scene material, and a reawakening of oedipal struggles.

Adolescent↗

The affective domain in medical technology education.

Evaluation of medical technology students often deemphasizes the affective behavioral domain. The intangible dimensions of the domain and its subsequent difficulties in measurement have been offered as rationales for this lack of curricular emphasis. The work of Klopfer and others in science education constitute a resource from which to construct an affective table of specifications for medical technology students. The Krathwohl taxonomy permits quantifications of these goals. Some techniques for such measurement (open-ended approaches, checklists, Likert scales, and semantic differentials) are reviewed. Finally, the nature of the interface between the affective and cognitive domains is analyzed. The clinical laboratory sciences educator functions as a nonverbal as well as a verbal affective role model for his/her students. This paper emphasizes the responsibility of the educator in creating flexible student assessment approaches in the domain.

Affect↗

Gender differences in attitudes toward science.

Analysis of nationwide surveys taken from 1972 through 1990 showed that, at all education levels and in all age groups from 20 to 79 years, females had less confidence in science than males. Greater percentages of females than males agreed with statements that, "science breaks down people's ideas of right and wrong" and "science pries into things." The relationships between gender differences in attitudes toward science and theories about biological differences in cognitive abilities between the sexes, traditional societal roles of women, and the impediments to participation of women in historically male-dominated science are discussed.

Adult↗

The future of 'pure' medical science: the need for a new specialist professional research system.

Over recent decades, medical research has become mostly an 'applied' science which implicitly aims at steady progress by an accumulation of small improvements, each increment having a high probability of validity. Applied medical science is, therefore, a social system of communications for generating pre-publication peer-reviewed knowledge that is ready for implementation. However, the need for predictability makes modern medical science risk-averse and this is leading to a decline in major therapeutic breakthroughs where new treatments for new diseases are required. There is need for the evolution of a specialized professional research system of pure medial science, whose role would be to generate and critically evaluate radically novel and potentially important theories, techniques, therapies and technologies. Pure science ideas typically have a lower probability of being valid, but the possibility of much greater benefit if they turn out to be true. The domination of medical research by applied criteria means that even good ideas from pure medical science are typically ignored or summarily rejected as being too speculative. Of course, radical and potentially important ideas may currently be published, but at present there is no formal mechanism by which pure science publications may be received, critiqued, evaluated and extended to become suitable for 'application'. Pure medical science needs to evolve to constitute a typical specialized scientific system of formal communications among a professional community. The members of this putative profession would interact via close research groupings, journals, meetings, electronic and web communications--like any other science. Pure medical science units might arise as elite grouping linked to existing world-class applied medical research institutions. However, the pure medical science system would have its own separate aims, procedures for scientific evaluation, institutional organization, funding and support arrangements; and a separate higher-professional career path with distinctive selection criteria. For instance, future leaders of pure medical science institutions would need to be selected on the basis of their specialized cognitive aptitudes and their record of having generated science-transforming ideas, as well as their research management skills. Pure medical science would work most effectively and efficiently if practiced in many independent and competing institutions in several different countries. The main 'market' for pure medical science would be the applied medical scientists, who need radical strategies to solve problems which are not yielding to established methods. The stimulus to create such elite pure medical science institutions might come from the leadership of academic 'entrepreneurs' (for instance, imaginative patrons in the major funding foundations), or be triggered by a widespread public recognition of the probable exhaustion of existing applied medical science approaches to solving major therapeutic challenges.

Biomedical Research↗

The behavior analytic perspective: its nature, prospects, and limitations for behavior therapy.

Behavior analysis is defined as a natural science approach to behavior--with both basic and applied branches--and contrasted with cognitive psychology. Behavior analysis is described as an integrated science that views a person's interactions with the environment as selecting certain behaviors--or rather, environment-behavior relations--making them more probable, given certain subsequent stimulus situations. It seeks an understanding that promotes effective action, which fits the clinical interests of behavior therapy. It promotes persistent searching for environmental causes, which has resulted in a remarkable range of successes, clinical and other. We explore the reasons that all behavior therapists are not behavior analysts and suggest needed future developments.

Behavior Therapy↗

Examining Sedlacek's nontraditional variables of minority student success in a summer enrichment program for health careers.

Nontraditional variables associated with minority student success in the health sciences have been identified by Sedlacek and his associates. These eight variables-positive self-concept, realistic self-appraisal, understanding and dealing with racism, long-range goals, availability of a strong support person, leadership, community service and medical interests-are examined with respect to their incorporation into the summer enrichment programs for talented minority students conducted at the University of Tennessee Center for the Health Sciences (UTCHS) during the years 1982-1984. Student comments and illustrations from the summer program's curriculum are provided for five of Sedlacek's variables to demonstrate how the UTCHS program is able to further the development of these nontraditional variables as well as to strengthen the cognitive abilities of students in basic science, mathematics, and communication. Evaluations of the summer program have revealed that the students have an increased academic self-concept, a more realistic view of the requirements to become a health professional, and an enhanced awareness of the health care environment.

Adolescent↗

Hippocampal function in the rat: cognitive mapping or vicarious trial and error?

The most prominent hypothesis of hippocampal function likens the hippocampus to a "cognitive map," a term used by a famous learning theorist, E. C. Tolman, to explain maze learning. The usual application of this concept of cognitive map, as it applies to the hippocampus, is to what is called spatial learning, mainly in the radial-arm maze of Olton and the Morris water maze. In a recent Hippocampus Forum, evidence for the cognitive map hypothesis was reviewed in a lead article by Nadel, followed by a series of commentaries by leading investigators of hippocampal function. This speculative commentary offers an alternative not represented in the forum--that the function of the hippocampus in spatial learning is not as a cognitive map, but that it subserves another function proposed by Tolman in his work on simple discrimination learning, vicarious trial and error, based on incipient, conflicting dispositions to approach and avoid.

Animals↗

[The contribution of molecular biology to the progress of the physiological sciences].

Life science, physiology have an important improvement on cell sciences, by seeing cell through a complex integrative concept. So, the notion of homeostatic equilibrium for the whole body is applied at the cellular level. Also, molecular biology techniques can facilitate the answer for a lot of the physiological and pathological questions. This paper mention only some of the many examples which justify both the importance of molecular biology for the cognitive progress of physiological and biomedical sciences and the role of physiological notions for the complexity view of molecular sciences.

Animals↗

What are the eating cognitions of children whose chronic diseases do and do not require attention to diet?

Nutrition therapy is essential to the management of several chronic diseases affecting adolescents. Unfortunately, dietary impositions may evoke pathological eating-related cognitions. This pilot study examined eating- and weight-related cognitions of 55 adolescents attending a summer camp for youngsters with a heterogeneous variety of chronic diseases. Campers completed the Eating Cognitions Questionnaire and the Situational Obstacles to Dietary Adherence questionnaire. Campers whose medical regimens included special dietary recommendations (n = 24) were expected to have more cognitions associated with eating disorders than those without dietary restrictions (n = 31). Girls were significantly more concerned than boys about weight and restrictive dietary rules. Cognitions of youngsters with special dietary recommendations showed greater flexibility, less eating pathology and less weight concern than campers without recommended diets. Contrary to previous reports, dietary restrictions were associated with more appropriate eating cognitions, suggesting that adolescents with chronic illnesses requiring nutrition therapy may not necessarily bear greater risk of eating disorders.

Adaptation, Psychological↗

Stability in cognition across early childhood. A developmental cascade.

Children confront the formidable task of assimilating information in the environment and accommodating their cognitive structures to that information. Developmental science is concerned equally with two distinctive features of these processes: children's group mean level of performance through time and the standing of individual children through time. Prevailing opinion since the inception of the mental-measurement movement has been that individual development is unstable-that individual children change unpredictably in their abilities. We report results of a large-scale controlled, multivariate, prospective, microgenetic, 4-year longitudinal study that reveals a statistically significant cascade of species-typical cognitive abilities from infancy to childhood. Infancy is a recognizable starting point of life; we find that to a small but significant degree, infancy also represents a setting point in the life of the individual.

Child↗

(Mis)conceptions and reconceptions about traditional science.

"Traditional" science (ie, scientific work that has evolved from the natural sciences) is still said to rely on theory-neutral facts, quantitative data, and the search for universal laws. This depiction of science is incongruent with much contemporary thinking. This article examines three shifts in recent philosophy that are relevant for nursing science philosophy: the move from foundationalism to an understanding of the fallibility of science, the shift in emphasis from verification to justification of knowledge claims, and the recent examination of explanation by scientific realists. It is suggested that scientific realism may be a fruitful area of inquiry for philosophers of nursing science.

Cognition↗

[Dialectics of the objective and subjective in the diagnosis of diseases].

The reader's attention is drawn to the fact that the dialectics of the objective and subjective in the cognition process is one of the most important and "enternal" philosophic problems. At each historical step of development of the science and public practice, in each sphere or cognition activity the former is of a definite specificity. It is the authors' opinion that the same is fully refered to such complicated field of cognition as the diagnosis of diseases.

Diagnosis↗

Self-report measures of patient utility: should we trust them?

As self-reports, measures of patient utility are susceptible to the effects of cognitive biases in patients. This article presents often overlooked problems in these measures by outlining cognitive processes involved in patient self-report. It is argued that these measures: 1) require overly complex mental operations; 2) fail to elicit thoughtful response by default; 3) may be biased by patients' mood; 4) are affected by both researchers' choice of measurement instruments and patients' choice of judgment strategies; 5) tend to reflect the disproportionate influence of patients' values that happen to be recallable at the time of measurement; and 6) are affected by patients' fear of regret. It is suggested that solutions for these problems should involve: a) improving the methods of administration; b) developing measures that are less taxing to patients; and c) redefining the concept of patient utility as judged, as opposed to retrieved, evaluation. Published by 2000 Elsevier Science Inc.

Cognition↗