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1.
It is generally recognized that modern cities pose many problems for their inhabitants and contribute to environmental damage. However, neither planners nor scientists give adequate consideration to cities’ place in the evolutionary process and the planet's ecological system. By recognizing these connections and natural laws, planning would become more realistic, and meaningful progress could be made in solving serious social and environmental problems. Some basic problems influencing urban form are discussed, and a schematic example of how we might approach the planning of urban settlements is presented.  相似文献   

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Smith AD  Gilchrist ID  Cater K  Ikram N  Nott K  Hood BM 《Cognition》2008,107(3):1102-1111
An influential series of studies have argued that young children are unable to use landmark information to reorient. However, these studies have used artificial experimental environments that may lead to an underestimation of the children’s ability. We tested whether young children could reorient using landmarks in an ecologically valid setting. Children aged between 3 and 7 years completed a reorientation task in open parkland, and the properties of the search array (size and distinctiveness) were manipulated in a within-subjects design. Responses were recorded using Global Positioning Systems technology. All age groups performed above chance level, demonstrating that young children can reorient using natural landmarks. This behaviour was modulated by the nature of the search array: children were more accurate when the locations were spaced in a large array, and when the search locations were distinctively coloured. This suggests that the integration between landmarks and search locations, at different spatial scales, is a key factor in characterising human reorientation in the real world.  相似文献   

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The category adjustment (CA) approach to distortions in location memory has been largely documented in simplified lab-created spaces but minimally in navigable real-world environments. In the current paper, we extend the approach to a navigable real-world environment and specifically evaluate the assumption that long-term location memory may be retrievable despite errors in recall. Memory for the location of a fountain in a heavily navigated square on a university campus was tested by reproduction on a photograph of the square and then by a forced-choice recognition test. While the recall data showed the standard bias, the recognition data revealed chance-level performance. The pattern of results suggests a possible difference between accessibility of working memories for locations within laboratory-created spaces and long-term memories for locations within complex navigable spaces. The results are discussed in terms of the CA model.  相似文献   

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Nine examples are presented illustrating the kinds of problems encountered in actual practice by conscientious engineers. These cases are drawn fom the records of the IEEE Ethics Committee, and from the experience of the ethics help-line initiated recently by the Online Ethics Center for Engineering and Science. They range from situations in which companies try to cheat one another to those in which human health and safety are jeopardized. In one case, an engineer learned that even a quiet resignation can prove very costly in a personal sense. Some ways in which professional societies might make ethical practice of engineering somewhat easier are mentioned. An carlier, shorter version of this paper was presented at the International Conference on Ethics in Engineering and Computer Science, Case Western Reserve University, Cleveland, March 21–24, 1999, and can be accessed on line at http://onlineethics.org/cases/unger.html. In all cases described in this paper, the names of individuals and organizations have been suppressed or fictionalized. Professor Unger was Chairman of the IEEE (Institute of Electrical and Electronics Engineers) Ethics Committee (1997–1998).  相似文献   

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Recent advances in assessment methodology have resulted in a highly efficient procedure for obtaining delay discounting rates for adults: a 5‐trial adjusting delay task (ADT‐5) examining intertemporal choice for hypothetical rewards. The low participant burden of this task makes it potentially useful for children, with whom delay discounting research is relatively limited. However, it is unknown whether results from this task match choice for real rewards. The present study assessed delay discounting for real and hypothetical monetary rewards using a modified ADT‐5 with 9 children admitted to a psychiatric day treatment program. Participants completed up to 3 tasks with each reward type in alternating order. No difference in discounting rate, via log(k), was observed between the first task of each reward type. This finding was replicated across subsequent tasks for the subset of participants (n = 6) who completed all 6 tasks. However, delay discounting of real and hypothetical rewards was not found to be statistically equivalent. These results suggest that a modified ADT‐5 using hypothetical rewards may be a viable option for assessing delay discounting in children with psychiatric diagnoses, but additional research is needed to explicitly examine whether hypothetical and real rewards are discounted equivalently in this population.  相似文献   

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Covert communication in laboratories, classrooms, and the truly real world   总被引:3,自引:0,他引:3  
Hundreds of research studies have demonstrated that one person's expectations for the behavior of another person can actually affect that other person's behavior. These studies implicate the operation of processes of covert communication, communication that is subtle, largely nonverbal, and ordinarily unintended. The earliest studies of these processes showed that through their expectations, laboratory researchers unwittingly affected the responses of their research participants. Later studies showed that teachers' experimentally induced expectations about their pupils affected the pupils' intellectual performance. Most recently, studies of covert communication processes have extended to diverse contexts, such as the judicial and health care systems. For example, research indicates that judges' beliefs about the guilt of trial defendants can be unwittingly communicated to juries by the judges' nonverbal behavior during jury instruction. In addition, studies of covert communication in medical contexts show that physicians' effectiveness in persuading their patients to enter into treatment can be predicted from their tone of voice in talking to or about their patients. For example, one study showed that surgeons who used a bossy tone of voice when talking to their patients were more likely to be sued by their patients than were surgeons who used a more respectful tone. In sum, then, we have learned a great deal about the importance of subtle processes of nonverbal communication, but a great deal more is yet to be learned about these processes as they occur in the relatively sheltered context of laboratories and classrooms and in the rough-and-tumble of the truly real world beyond.  相似文献   

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Stutterers stutter significantly less in the laboratory and the clinic than in everyday speaking situations. This paper reviews pertinent literature to show that, in the outside world, stutterers have a stake in what they say and therefore message content and interpersonal dynamics command attention-relegating speech-motor planning and execution to an automatic, memory-based process called speech concatenation. In the laboratory and the clinic, content of communication and interpersonal dynamics are less important, allowing stutterers to concentrate on the motor planning of articulation and prosody. Evidence reviewed here suggests that speech construction (real time preparation of an utterance motor plan) is incompatible with stuttering. Evidence also suggests that a slight delay in retrieving motor plans from memory during speech concatenation is the immediate source of stuttering.  相似文献   

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Token economies are rarely used in real-world psychiatric settings because of barriers to their implementation, such an institutional constraints and insufficient collegial support. The line-level treatment team at Elgin Mental Health Center was able to overcome these contraints and develop a user-friendly token economy. This article describes Elgin's simple yet effective token economy and the process used to develop it.  相似文献   

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Token economies are rarely used in real-world psychiatric settings because of barriers to their implementation, such an institutional constraints and insufficient collegial support. The line-level treatment team at Elgin Mental Health Center was able to overcome these contraints and develop a user-friendly token economy. This article describes Elgin's simple yet effective token economy and the process used to develop it.  相似文献   

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This qualitative study used in-depth interviews to explore the communicative experiences and coping strategies of 14 adults who stammer. Their accounts revealed that those participants with persistent developmental dysfluency felt that stammering had limited their lives especially in the areas of employment, education and self-esteem. All participants shared key styles of communicative management with avoidance and confrontation developing during childhood. The participants who had undertaken therapy during adulthood, relied upon a range of speech management techniques including self-evolved and therapeutic strategies. Many of the strategies regularly used by the respondents contributed to the limiting experience of stammering. This study highlights the experience of stammering on the individual, discusses the variety of strategies used to manage dysfluency and indicates the complexities of day-to-day communication. These findings are discussed in relation to speech and language therapy for adults who stammer.

Educational objectives: The reader will learn about and be able to give examples of: (1) the lived experience of stammering; (2) the communicative strategies used by adults; and (3) the situational management of stammering.  相似文献   


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Adolescence is marked by the emergence and escalation of risk taking. Puberty has been long-implicated as constituting vulnerability for risk behavior during this developmental period. Sole reliance on self-reports of risk taking however poses limitations to understanding this complex relationship. There exist potential advantages of complementing self-reports by using the BART-Y laboratory task, a well-validated measure of adolescent risk taking. Toward this end, we examined the association between self-reported puberty and both self-reported and BART-Y risk taking in 231 adolescents. Results showed that pubertal status predicted risk taking using both methodologies above and beyond relevant demographic characteristics. Advantages of a multimodal assessment toward understanding the effects of puberty in adolescent risk taking are discussed and future research directions offered.  相似文献   

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A controlled experiment used instrumented vehicles in a real-world driving task to compare D. N. Lee's (1976) tau-dot hypothesis of braking control with an alternative based on the direct estimation and control of ideal deceleration (T. Yates, M. Harris, & P. Rock, 2004). Drivers braked to stop as closely as possible to a visual target from different starting speeds and times-to-contact. The data provided little support for the tau-dot hypothesis, and analysis suggested that braking in the real world is better explained by a direct deceleration strategy.  相似文献   

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Twenty years ago, William Kessen, Greta Fein and I developed and tested a model of parent education, a model which involved variation in curricular content, didactic approaches, and child outcomes–experimentally contrasted. Our experience yielded some valuable lessons about the extent to which researchers can influence parents' behaviour, and parents their children's development. In the present article I suggest that these lessons might be useful for researchers now as they were for us then. I present some observations about the research that developmental psychologists have done in the intervening two decades and suggest that we could learn much by using such a model of parent education to answer questions about the effets of parents' behaviour on children's development. Carefully done, parent education studies can yield valuable information about many of the questions raised in recent correlational research. Parent training research can suggest hypotheses that can be tested with data collected non-interventively and analysed in causal model analyses–and vice versa. What is more, because one reason for studying parent effects is so that we can offer guidance to parents about rearing their children, this design has a particular advantage; it is both the medium and the message.  相似文献   

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