Memory for Constrained and Preselected Movement Location and Distance

These experiments assessed the interrelationship between location and distance cues in the coding of movements. In separate experiments subjects recalled either the terminal location or the distance of constrained (Experiment 1) or preselected (Experiment 2) movements following a 15-sec retention interval. Changes in direction amd amplitude of starting position were used to ascertain whether recall errors were related to these changes. The findings of both experiments indicated that location and distance were recalled with similar accuracy when the starting position was identical for the criterion and recall movement. However, analysis of constant errors when the recall starting position was varied in either direction clearly indicated neither terminal location nor distance are coded independently, and memory for movement is based on an interaction between these cues.     

Slower Reorientation of Trunk for Reactive Turning while Walking in Hemiparesis Stroke Patients

We examined the behavioral characteristics of reactive turning in hemiplegic stroke patients when they were informed of the turning direction just before turning was required at an unpredictable time. Eleven stroke patients and 20 healthy elderly control people were asked to initiate a turn as soon as a visual cue to inform them of the turning direction was activated unpredictably using a foot switch. Both the segmental reorientation and stepping type when turning 90° while walking were measured. The results indicated preserved segmental reorientation of the head and pelvis in stroke patients. Stroke patients showed delays in pelvic turning but not in head turning. Their delayed pelvic movement might be due to motor dysfunction and the time taken to ensure stability when deciding when to turn.     

Boundary Work,Associative Argumentation and Switching in the Advocacy of Agricultural Biotechnology

Some scientists argue that we face a worldwide reproductive crisis known as ‘endocrine disruption’, a term used to encompass the effects of hormonally active chemicals in our environment. Everyday chemicals such as plastics, pesticides and flame retardants can mimic hormones and thereby disrupt the reproductive, neurological and immunological development of humans and other animals. This surprising discovery is causing consternation in scientific, policy, academic and corporate arenas as they attempt to define, assess and control for this understudied phenomenon. How can the social sciences participate in understanding and solving the problem generated by endocrine disruption? First, there is an early history of endocrine disruption; the development of insect hormone mimics as pesticides, that has yet to be brought to bear in contemporary discussions of endocrine disruption. Second a social science analysis of the mishaps resulting from the 1970s' development of insect hormone mimics as pesticides offers a new way of thinking scientifically about mimesis. Employing the social science insight that mimesis is productive of social change sheds light on how insect hormone mimicking pesticides produced a number of scientific surprises. By analyzing the outcome of using mimesis in the laboratory, this paper participates in the discussion of endocrine disruption by arguing for a re-evaluation of the predominance of laboratory based sciences when dealing with epigenetic phenomena.     

急性一氧化碳中毒高压氧治疗的中美指南比较

急性一氧化碳（carbonmonoxide,CO）中毒是中美最常见的意外中毒原因之一。高压氧能促进碳氧血红蛋白解离,加速体内CO排出,明显缩短CO半清除时间,是治疗急性CO中毒的一种重要治疗方法。比较中美现有急性CO中毒治疗指南及推荐意见。发现其中在高压氧治疗应用的适应证、具体方案、治疗费用等方面有很大差异。我们对此差异进行比较分析,为临床治疗及科研提供参考,也对通过进一步研究以充分证实高压氧治疗急性CO中毒的有效性,制订高压氧治疗最佳方案提出展望。     

Applying a bifactor model to the functions of relational aggression: Associations with hostile attribution biases and difficulties with emotion regulation

Previous research suggests that reactive and proactive aggression likely have distinct underlying mechanisms that uniquely contribute to the perpetration of each as a result of faulty cognitive and emotional processes. Still, very little work has examined the association of the functions of relational aggression with emotion dysregulation and hostile attribution biases. In addition, it is important to examine relational aggression in its pure and co-occurring functions given that past work finds reactive and proactive aggression to occur both jointly and distinctly. Thus, the current study employed a bifactor model to distinguish between pure reactive, pure proactive, and co-occurring relational aggression in emerging adulthood (N = 647, M_age = 19.92, SD = 2.83), a developmental time period for which relational aggression is particularly prominent. To further address gaps in the relational aggression literature, indirect pathway models revealed that relational hostile attribution biases emerged as a concurrent indirect path in the relationship between emotion dysregulation and pure reactive relational aggression. Furthermore, emotion dysregulation was directly positively associated with both pure functions as well as co-occurring relational aggression, and hostile attribution biases for relational provocations were directly associated with both pure functions of relational aggression, though the association was negative for pure proactive and positive for pure reactive relational aggression. Findings highlight the potential influence of emotion dysregulation and attributing hostile intent to social situations on engaging in the different functions of relational aggression.     

Differential ordering of objects and attributes

By reference to nominated attributes, a genus, being a population of objects of one specified kind, may be partitioned into species, being subpopulations of different kinds. A prototype is an object representative of its species within the genus. Using this framework, the paper describes how objects can be relatively differentiated with respect to attributes, and how attributes can be relatively differentiating with respect to objects. Methods and rationale for such differential ordering of objects and attributes are presented by example, formal development, and application.For a genus comprisingn species of object there is a subsetP ofn distinct prototypes. With respect tom nominated attributes, each object in has anm-element characterization. Together these determine ann ×m objects × attributes matrix, the rows of which are the characterizations of the prototypical objects. Over then species in , an associated relative frequency vector gives the distribution of objects (and of their characterizations). The matrix and vector associate the objects in with points in a metric space (P, ); and it is with respect to various sums of distances in this attribute space that one can differentially order objects and attributes.The definition of the distance function is generalized across kinds of difference, types of characterization, scale-types of measurement, Minkowskiindex 1, and any form of distribution of objects over species. Explanatory and taxonomic applications in psychology and other fields are discussed, with focus on classification, identification, recognition, and search. The Braille code and the identification of its characters provide illustration.An anticipation and some preliminary indications were given in Sutcliffe and Bristow (1966), Sutcliffe (1972, 1973), and Nowakowska (1975). Subsequently the ideas have been extended and their applications realized in a computer program which, in its development, has so far gone through many minor and three major revisions to its present form in Sutcliffe (1985). The foregoing provided the foundation for the empirical applications and for the presentation in this paper of the ideas in their general form. the research has been supported by funds from the University of Sydney Research Grant and from the Australian Research Grants Scheme. In the working out and exposition of the ideas I have very much benefited from constructive critical comment given by C. R. Latimer, J. B. Michell, G. Oliphant, and E. Seneta, and from the professional programming skills of Michael Wilson and David Shillito. I am grateful for the invitation and the facilities for writing extended during 1983 by Georges Noizet, Laboratoire de Psychologie Expérimentale, Université René Descartes, Paris V, and by Samuel Messick, Vice President for Research, E.T.S. Princeton, N.J. Finally, I acknowledge the improvements in presentation of this paper which have arisen from the editor's and reviewers' comments.     

Toward a Transactional Conceptualization of Oppositional Defiant Disorder: Implications for Assessment and Treatment

The conceptualization and treatment of oppositional defiant disorder (ODD) has been characterized by surprising homogeneity. In this paper evidence is presented to underscore the heterogeneity within ODD, including research demonstrating (a) the distinction between reactive and proactive forms of aggression; (b) the importance of affective modulation and self-regulation, and associated cognitive skills, in the development of the skill of compliance; and (c) high levels of comorbidity between ODD and other disorders. The disparate pathways that give rise to oppositional behavior suggest that different children with ODD may require different forms of intervention. The necessity of a transactional conceptualization, of achieving a comprehensive understanding of the factors underlying the difficulties of individual children with ODD, and of matching intervention ingredients to the specific needs of different children and families is discussed.Ross W. Greene     

Species differences in temporal control of behavior II: human performance

Human subjects responded on two panels. A differential-reinforcement-of-low-rate schedule with a limited-hold contingency operated on Panel A. In Condition 1, responses on Panel B produced a stimulus on the panel that signalled whether reinforcement was available on Panel A. In Condition 2, responses on Panel B briefly illuminated a digital clock. In both conditions, performance on Panel A was very efficient; with few exceptions, Panel A was pressed only when reinforcement was available. Thus, in effect, a fixed-interval schedule operated on Panel B. In Condition 1, a “break-and-run” response pattern occurred on Panel B; with increasing temporal parameters, the duration of the postreinforcement pause on Panel B increased linearly while overall response rate and running rate (calculated by excluding the postreinforcement pauses) remained approximately constant. In Condition 2, the response pattern on Panel B was scalloped; the postreinforcement pause was a negatively accelerated increasing function of schedule value, while overall response rate and running rate were negatively accelerated decreasing functions of schedule value. The performance of subjects in Condition 2, but not in Condition 1, was highly sensitive to the contingencies in operation, and resembled that of other species on the fixed-interval schedule.     

冲突视阈下类别信息与个体信息知觉负载的认知控制效应

个体根据知觉选择、反应偏向以及实时更新的情境信息调节自身状态,以适应性地促进对当前知觉信息的灵活编码,这一过程即为印象形成的认知控制。采用词语判断任务与侧抑制任务的变式将他人信息(类别信息vs.个体信息)分成高、低知觉负载两种水平,考察了冲突视阈下认知控制策略对他人印象形成的调控作用及知觉负载的效应。结果发现:(1)知觉负载影响他人印象形成的认知控制策略。(2)当类别信息与个体信息存在知觉冲突且个体的知觉负载较高时,受到反应性控制的作用,他人印象形成易出现冲突适应偏向; 当个体的知觉负载较低时,他人印象形成易受主动性控制的作用,从而产生冲突抑制偏向。这些结果表明,当个体形成他人印象时,其认知控制策略因受知觉负载影响而呈现分阶段加工特征。     

Stronger reactivity to social gaze in virtual reality compared to a classical laboratory environment

People show a robust tendency to gaze at other human beings when viewing images or videos, but were also found to relatively avoid gaze at others in several real-world situations. This discrepancy, along with theoretical considerations, spawned doubts about the appropriateness of classical laboratory-based experimental paradigms in social attention research. Several researchers instead suggested the use of immersive virtual scenarios in eliciting and measuring naturalistic attentional patterns, but the field, struggling with methodological challenges, still needs to establish the advantages of this approach. Here, we show using eye-tracking in a complex social scenario displayed in virtual reality that participants show enhanced attention towards the face of an avatar at near distance and demonstrate an increased reactivity towards her social gaze as compared to participants who viewed the same scene on a computer monitor. The present study suggests that reactive virtual agents observed in immersive virtual reality can elicit natural modes of information processing and can help to conduct ecologically more valid experiments while maintaining high experimental control.