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221.
222.
Shaping the location of a pigeon's peck: effect of rate and size of shaping steps. 总被引:3,自引:2,他引:1
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D A Eckerman R D Hienz S Stern V Kowlowitz 《Journal of the experimental analysis of behavior》1980,33(3):299-310
For several pigeons, pecking at particular locations within a ten-inch-wide response area was reinforced by grain presentations. The reinforced locations changed systematically to "shape" response location back and forth across the area. The rate and size of these shifts in reinforced locations were varied in both between-subject and within-subject comparisons to evaluate the influence of these variables on the shaping process. Larger step sizes produced larger shifts in location for all sizes inspected, with all sizes from .5 to 3.0 inches effective in shaping behavior. More rapid steps were approximately as effective as slower steps for all rates of shift inspected from 25 reinforcers to 400 reinforcers per step. These data suggest that shaping peck location proceeds most efficiently with rapid, relatively large shifts in criterion performance. 相似文献
223.
D. L. Peng L. N. Orchard J. A. Stern 《Integrative psychological & behavioral science》1983,18(2):94-102
Eye movements were recorded while competent readers of English and Chinese read in their respective languages. There were no important differences in oculometric patterns of fixation pause durations for Chinese and American readers, suggesting that cognitive aspects of reading are more important than perceptual ones in determining eye movement patterns and fixation pauses of competent readers. An analysis of undershoot saccades associated with return of the eyes from the end of one line to the beginning of the next line suggests that these occur more frequently during reading than during the performance of similar eye movements that are more perceptually determined, however, the amount of undershoot does not discriminate between readers of alphabetic and logographic texts. 相似文献
224.
A validation of eye movements as a measure of elementary school children's developing number sense 总被引:1,自引:0,他引:1
Michael Schneider Angela Heine Verena Thaler Joke Torbeyns Bert De Smedt Lieven Verschaffel Arthur M. Jacobs Elsbeth Stern 《Cognitive development》2008,23(3):409-422
The number line estimation task captures central aspects of children's developing number sense, that is, their intuitions for numbers and their interrelations. Previous research used children's answer patterns and verbal reports as evidence of how they solve this task. In the present study we investigated to what extent eye movements recorded during task solution reflect children's use of the number line. By means of a cross-sectional design with 66 children from Grades 1, 2, and 3, we show that eye-tracking data (a) reflect grade-related increase in estimation competence, (b) are correlated with the accuracy of manual answers, (c) relate, in Grade 2, to children's addition competence, (d) are systematically distributed over the number line, and (e) replicate previous findings concerning children's use of counting strategies and orientation-point strategies. These findings demonstrate the validity and utility of eye-tracking data for investigating children's developing number sense and estimation competence. 相似文献
225.
Fathers of children with autism spectrum disorder (ASD) might be at increased risk of becoming lonely. In the current study, we explored the differences in loneliness between fathers of children with and without ASD and identified interpersonal and familial resources (social support, family cohesion, and family adaptability) that might be related to levels of loneliness. Using a cross-sectional design, 348 fathers (of 114 children with ASD and 234 without) completed a series of questionnaires. Fathers of children with ASD reported higher levels of loneliness and lower levels of social support and family cohesion. A moderated mediation model indicated that the interaction between social support and family cohesion mediated the association between ASD group (i.e., ASD vs. non-ASD) and fathers' loneliness. Findings suggest the importance of interpersonal and familial resources (e.g., perceived social support and family cohesion) for family members at risk of loneliness. 相似文献
226.
Daniel N. Stern 《Infant mental health journal》1991,12(3):174-186
The relationship — as represented — is proving to be of growing value in our thinking about clinical problems such as “intergenerational transfer.” It is also an extremely positive influence in our thinking about how the interpersonal world is remembered, abstracted, and lived. Yet, the nature of a “represented relationship” remains unclear. This paper is an attempt to clarify some of the problems and areas for needed study regarding this concept. The mother's representation of her infant and of the people in her own life who have played “maternal roles” will be taken as the model. First, we will explore the richness and complexity of these representations and conclude that, for clinical purposes, different models are used to simplify this richness and render it therapeutically useful. Three models will be discussed. The first is the disfortion model which measures the distance between the mother's subjective experience of her interaction or relationship with another and some objective, observable “reality.” The model of overdeter-mining themes is a second model, largely the inspiration of psychoanalysis but inclusive of Bowlby's theory of attachment. Here psychobiological and/or psychodynamic themes organize the clinical material. Finally, a coherence model is discussed. Here the motive is goodness of the narrative construction rather than the historical “truth.” A second issue discussed is the capacity to represent dyads vs. triads and actual vs. second-hand narrated relationships. These issues are crucial for notions not only about the nature of such representations but also their limitations in understanding family interactions and relationships, i.e., where many members are concerned. A third issue concerns the nature of the subjective experience for a mother when a representation of her infant or herself in relation to the infant is “activated.” There exists here an unknown typology of experience. Finally, we will discuss what all of the above have to contribute to our further understanding of the nature of represented relationships. 相似文献
227.
The prematurity stereotype is defined as a set of biased beliefs about infants who are identified as having been born prematurely. This article reviews studies that have explored how this prematurity stereotype may negatively influence adults' perceptions of, expectations for, and behavior toward premature infants. The findings from these studies are considered in the context of more general knowledge about how expectations can influence behavior and result in self-fulfilling prophecies. Recent research designed to investigate how prematurity stereotyping can be reduced also is described and evaluated. Finally, the implications of this program of research for intervention with parents of premature infants and suggestions for future research directions are discussed. 相似文献
228.
Yaakov Roitman 《Psychoanalytic Social Work》2017,24(2):144-162
This article considers a relational perspective regarding the intergenerational transmission of the trauma of violence. The psychoanalytic literature suggests that parents often transmit the trauma of violence to their children in the form of projected nameless dread and unmentalized states that interfere with the children's emotional needs and support. The offspring absorbs the trauma, which manifests itself in the form of disorganized attachment and in turn leads to the development of a predisposition toward cocoon-like dissociative states. This study considers two clinical cases that examine the interpersonal dynamics of dissociative processes. The therapist's reverie about his ancestors' survival of depersonalizing violence and Winnicott's concept of the survival and the use of the object help the therapist find his or her identity and gain the relational freedom needed to overcome the dissociative state, thereby becoming an alive subject who is able to help the child patient. 相似文献
229.
Donnel B. Stern 《The Journal of analytical psychology》2017,62(4):501-525
The paper is divided into two parts. The first part is an interpersonal/relational psychoanalytic account of some relationships between dissociation, time, and unformulated experience. Trauma, and the dissociation to which trauma leads, freezes time, which makes it impossible to formulate certain kinds of new experience. Instead, potential new meanings remain unformulated. The route of clinical access to frozen time is the interpersonal field: to thaw time and allow new experience, the ways in which the interpersonal field is itself frozen need to be addressed. A clinical illustration of these ideas is offered. The second part of the paper presents and explores a point of confluence between the views in Part 1 and certain aspects of French psychoanalysis, with particular reference to the concept of Nachträglichkeit in the work of Jean Laplanche and Haydée Faimberg. 相似文献
230.
Starting from controversies over the role of general individual characteristics (especially intelligence) for the attainment of expert performance levels, a comprehensive psychometric investigation of individual differences in chess expertise is presented. A sample of 90 adult tournament chess players of varying playing strengths (1311-2387 ELO) was screened with tests on intelligence and personality variables; in addition, experience in chess play, tournament participation, and practice activities were assessed. Correlation and regression analyses revealed a clear-cut moderate relationship between general (and in particular numerical) intelligence and the participants' playing strengths, suggesting that expert chess play does not stand in isolation from superior mental abilities. The strongest predictor of the attained expertise level, however, was the participants' chess experience which highlights the relevance of long-term engagement for the development of expertise. Among all analysed personality dimensions, only domain-specific performance motivation and emotion expression control incrementally contributed to the prediction of playing strength. In total, measures of chess experience, current tournament activity, intelligence, and personality accounted for about 55% of variance in chess expertise. The present results suggest that individual differences in chess expertise are multifaceted and cannot be reduced to differences in domain experience. 相似文献