Psychosocial adaptation in juvenile rheumatic disease: a controlled evaluation

Juvenile rheumatic diseases are serious chronic illnesses potentially capable of disrupting a child's development and functioning. This study examined the psychosocial functioning of 43 children with severe rheumatic disease as compared to that of 52 children with a milder or inactive form of rheumatic disease. Both patient groups also were compared to 93 healthy children from demographically matched families. Data were obtained from parent reports, from physician evaluation, and, for children who were old enough, from self-reports. The severe patient group showed more parent-reported psychological and physical problems than both the mild patient group and the healthy controls. Compared to the mild group, the severe group also missed more days of school due to illness. Older children in the severe group were more likely to miss school due to illness and to participate in fewer social activities with their families and friends than the controls; however, the older children reported comparable mood and functioning in other areas. An expanded model is proposed to examine risk and resistance factors predictive of psychological and social dysfunction among children with severe chronic disease.     

Social interaction with siblings is necessary for visual imprinting of species-specific maternal preferences in ducklings (Anas platyrhynchos)

This study was conducted to examine the influence of various social rearing experiences on the development of imprinted visual maternal preferences in domestic mallard ducklings (Anas platyrhynchos) during the first 3 days of postnatal life. Twenty-four-hour-old ducklings were allowed to follow a stuffed mallard hen for 30 min. This experience resulted in a visual preference for the familiar mallard hen over an unfamiliar stuffed redhead (Aythya americana) hen in simultaneous choice tests at 48 hr and 72 hr only if the ducklings were reared in conditions allowing unrestricted social interaction with siblings, as would normally occur in nature. No visual preference for the familiar mallard model was found at 48 hr or at 72 hr if ducklings were reared in social isolation but allowed to see another duckling, reared with one duckling, or reared in a group of ducklings but denied the opportunity for direct social interaction. These results demonstrate the importance of normal social experience in the development of the visual imprinting of filial behavior in ducklings. Imprinting studies have traditionally employed isolation rearing and ignored the precocial bird's natural social context. Thus, the present findings raise doubts about the appropriateness of the usual methods of studying imprinting in the laboratory for an understanding of the process of filial imprinting in nature.     

Accuracy constraints upon rapid elbow movements

Kinematic and myoelectric variables associated with rapid elbow-flexion movements of various distances to targets of various widths were studied. The movement time in these experiments conformed to Fitts' law: movement time increased with target distance and decreased with target width. Peak movement velocity, electromyograph (EMG) duration, and EMG quantity were poorly described by Fitts' law, for increases in target width were accompanied by increases in these variables. We show with regression equations, using separate weighting coefficients, that kinematic and myoelectric variables can be related to distance and target width. The use of distance and target width as independent variables allows us to suggest that the literature does not agree on the relation between EMG and distance moved partly because of the influences of the target on this relationship. We propose that human voluntary movement involves a subject "strategy," or set of internal constraints, that affect movement outcome. Significant elements of this strategy, such as how accurately to perform the task, may not be recognized or controlled in many movement paradigms, in spite of uniform instruction to subjects and similar apparatus.     

Myrtle McGraw''s Unrecognized Conceptual Contribution to Developmental Psychology

In the late nineteenth century and through much of the twentieth century, the notion of the early developmental autonomy of motor behavior pervaded behavioral embryology and the developmental psychology of infant behavior. In the midst of this predeterministic climate of opinion concerning motor development, Myrtle McGraw briefly and tentatively broached the probabilistic epigenetic notion of a bidirectional or reciprocal relationship between structural maturation and function, whereby structural maturation of the nervous system is influenced by functional activity as well as the other way around. Myrtle McGraw thus anticipated our current understanding of the role of experience in the cortical and motor maturation of infants in the first year of postnatal life. It is all the more remarkable that she made this contribution when the theoretical climate of opinion was epitomized by predeterministic epigenetic thinking. In the same vein, McGraw's second unrecognized contribution is her clear formulation of a suitably flexible critical period concept in 1935, one that is consonant with our current understanding.     

The Mismeasure of Coping by Checklist

ABSTRACT Hundreds of studies have now used standardized checklists to assess respondents' self reports of coping with naturally occurring stress. This article presents a critical review of the conceptual and methodological issues involved in the use of these checklists. As they are currently employed, conventional checklists render an incomplete and distorted portrait of coping. Specifically, these checklists are grounded in too narrow a conception of coping; the application and interpretation of checklists in the typical study are not faithful to a transactional model of stress and coping; statistical controls cannot eliminate the effects of key person and situation variables on coping; and no consistent interpretation can be assigned to coping scale scores. Researchers are encouraged to consider a broader range of methods for assessing coping, including semistructured interviews, customized checklists tailored to their specific hypotheses and objectives, daily diaries, and traditional trait measures.     

When rigidity does not fail: Individualization and psychologization as resistances to the diffusion of minority innovations

Studied the impact of individualization and psychologization of minorities upon their influence. In Experiment I, 72 Swiss male and female 15-year-old students read a text on pollution prepared in a 2 × 2 ANOVA-design (one/ two sources, rigid/flexible style) and reported their impression of the content. As below, attitude was measured before and after reading. In Experiment II, 24 second-year Swiss psychology students judged the presumed author of an anti-militaristic tract by adjectives with either merely political or political and psychological connotations. Results indicate that the strong difference between flexible and rigid style appears with one source only, but that independent of the number of sources, a rigid style obtains a less positive image. Change of attitude in moderate subjects judging with political adjectives only vanished in those using psychological adjectives in addition. As a rigid minority only tacks influence when individualized and as psychologization constitutes an ideological functioning of resistance to social change, psychological research, by its current strategies, might be participating in such resistance.     

Aging, Memory, and Comprehension

There are changes in the ability to comprehend and remember information with aging. In general, older adults perform more poorly than younger adults at tasks that require knowledge of the information that was actually encountered. However, they can perform as well as or better than younger adults at tasks involving more global levels of understanding, such as in the use ofinformation in a situation model. This increased emphasis on situation models may serve to compensate for deficits at lower levels of processing and may be achieved through more focused selection of situation-defining information, increased dependence on schemas, and a broader generation and use of inferences.     

Majority and minority influence in inductive reasoning: A preliminary study

Ninety-three students were exposed to majority and minority influence in an inductive reasoning task. The former induced convergent thinking processes, though its effects were not reducible to mere compliance. The latter activated more divergent constructive processes, supporting the predictions of Conversion Theory.