The effect of scopolamine on reference and working memory in pigeons     

Angelo Santi  Colleen Hanemaayer  William Reason 《Learning & behavior》1987,15(4):395-402

A comparison of the effects of scopolamine hydrobromide on working memory and reference memory in White Carneaux pigeons was undertaken by means of a modified delayed matching-to-sample procedure. Performance on working-memory trials was disrupted by decreases in sample duration and intertriai interval and by increases in delay interval. Performance on reference memory trials was not disrupted by any of these parametric manipulations. In Experiment 1, the pigeons received injections of scopolamine hydrobromide (0.01, 0.05, or 0.1 mg/kg), scopolamine methyl bromide (0.1 mg/kg), or saline prior to test sessions. In Experiment 2, the pigeons received injections of scopolamine hydrobromide (0.01 or 0.03 mg/kg), scopolamine methyl bromide (0.03 mg/kg), or saline. In both experiments, scopolamine hydrobromide had greater disruptive effects on working-memory trials than on reference-memory trials. The centrally active form of scopolamine disrupted working-memory trial accuracy more than the peripherally active form. However, no drug dose × delay interval interaction was obtained. Thus, the interference on working-memory-trial accuracy produced by central cholinergic blockade would not appear to be due to alterations in the active maintenance of information during the delay interval.  相似文献   

The development of flexibility in equation solving     

Jon R. Star  Colleen Seifert 《Contemporary educational psychology》2006

This paper explores the development of students’ knowledge of mathematical procedures. Students’ tendency to develop rote knowledge of procedures has been widely commented on. An alternative, more flexible endpoint for the development of procedural knowledge is explored here, where students choose to deviate from established solving patterns on particular problems for greater efficiency. Students with no prior knowledge of formal linear equation solving techniques were taught the basic transformations of this domain. After instruction, students engaged in problem-solving sessions in two conditions. Treatment students completed the “alternative ordering task,” where they were asked to re-solve a previously completed problem but using a different ordering of transformations. Those completing alternative ordering tasks demonstrated greater flexibility.  相似文献   

Life trajectories of youth committing to climate activism     

Scott R. Fisher 《Environmental Education Research》2016,22(2):229-247

This article draws from a study investigating the life trajectories of 17 youth climate activists from 14 countries through semi-structured, life memory interviews using Internet-based methods. The interpretations of the interviews focus on the ways in which participants constructed the meanings and functions of experiences and how they represented the nature of the process of their committing to climate activism. Included in the interpretations are the nature of moments of consciously committing, the role of both concern for nature and for social justice, the dynamic and ceaseless process of committing, and the role of the youth climate movement. The discussion highlights the uniqueness of youth and of climate change in the process of committing. The research contributes to the limited but important literature on the life trajectories of youth climate activists.  相似文献   

Modifying socially withdrawn behavior: A playground intervention for students with internalizing behaviors     

Michelle R. Marchant  Brock R. Solano  Adam K. Fisher  Paul Caldarella  K. Richard Young  Tyler L. Renshaw 《Psychology in the schools》2007,44(8):779-794

There is little research regarding interventions for children with internalizing behaviors in schools, both within classrooms and in nonclassroom environments. In response to this need, a nonclassroom treatment package, consisting of (a) social skills instruction, (b) mediated self‐management, and (c) a reinforcement system, was implemented to modify the socially withdrawn behavior of 3 elementary students. The effects of this treatment package were evaluated on the school playground—during recess—by recording both the number of communicative acts and the total time spent engaged in appropriate peer play for each target student. All target students showed marked improvement in their playground, social interaction. Future research should be conducted with similar populations, using variations of the described methods in other school settings. © 2007 Wiley Periodicals, Inc. Psychol Schs 44: 779–794, 2007.  相似文献   

Shared thinking: metacognitive modelling in the literacy hour     

Ros Fisher 《Literacy》2002,36(2):63-67

This paper considers evidence from an ESRC funded study of twenty teachers, teaching the literacy hour. In 170 hours of observation only one instance of a teacher modelling her thinking about reading or writing was recorded: and this was unplanned. It is suggested here that, although there should be opportunities for metacognitive modelling within the literacy hour, teachers find it difficult to use these opportunities. Some ideas about the importance of metacognition are reviewed and an example of metacognitive modelling in shared writing is analysed. It is argued that concern for improved performance may cause more attention to be focused on what is to be achieved rather than how.  相似文献   

Conscientious internationalisation in higher education: contextual complexities and comparative tensions     

Ledger  Susan  Kawalilak  Colleen 《Asia Pacific Education Review》2020,21(4):653-665

Asia Pacific Education Review - In this paper, authors focus on how internationalisation is defined, interpreted, and responded to by Universities in Australia and Canada, two decades after de...  相似文献   

International Counseling Traits: Identifying Counseling Traits Ranked most Important by International Counseling Professionals through Q-Sort Analysis     

Nathan C. D. Perron  Toni Tollerud  Teresa A. Fisher 《International journal for the advancement of counseling》2016,38(2):159-176

Research has shown an increase in the study and discussion of international counseling throughout the past decade in the mental health domain. The counseling profession continues to take steps to address the lack of access to and the quality of counseling support throughout the world. A Q-sort methodology was utilized in order to capture an understanding of what might be identified as the most important traits for counselors to consider when counseling in international settings. A uniquely constructed Q-sort model developed from a careful review of the literature resulted in 35 items that were evaluated by 43 participants in two phases of analysis. The results from the Q-sort led to fuller consideration of the 12 counseling traits ranked highest. Three core themes that emerged from the data included: valuing people, personal character, and multicultural intentionality. Discussion about the highest ranked traits and core themes provides consideration of research implications and future studies in international counseling as a whole.  相似文献   

Going immersive in a community of learners? Assessment of design processes in a multi-setting architecture studio     

Hadas Sopher  Dafna Fisher Gewirtzman  Yehuda E. Kalay 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(5):2109-2128

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Search on surfaces: Exploring the potential of interactive tabletops for collaborative search tasks     

Meredith Ringel Morris  Danyel Fisher  Daniel Wigdor 《Information processing & management》2010

Collaborative information seeking often takes place in co-located settings; such opportunities may be planned (business colleagues meeting in a conference room or students working together in a library) or spontaneous (family members gathered in their living room or friends meeting at a café). Surface computing technologies (i.e., interactive tabletops) hold great potential for enhancing collaborative information seeking activities. Such devices provide engaging direct manipulation interactions, facilitate awareness of collaborators’ activities, and afford spatial organization of content. However, current tabletop technologies also present several challenges that creators of collaborative information seeking system must account for in their designs. In this article, we explore the design space for collaborative search systems on interactive tabletops, discussing the benefits and challenges of creating search applications for these devices. We discuss how features of our tabletop search prototypes TeamSearch, FourBySix Search, Cambiera, and WeSearch, illustrate different aspects of this design space.  相似文献   

Spoken language development in oral preschool children with permanent childhood deafness     

Sarant JZ  Holt CM  Dowell RC  Rickards FW  Blamey PJ 《Journal of deaf studies and deaf education》2009,14(2):205-217

This article documented spoken language outcomes for preschool children with hearing loss and examined the relationships between language abilities and characteristics of children such as degree of hearing loss, cognitive abilities, age at entry to early intervention, and parent involvement in children's intervention programs. Participants were evaluated using a combination of the Child Development Inventory, the Peabody Picture Vocabulary Test, and the Preschool Clinical Evaluation of Language Fundamentals depending on their age at the time of assessment. Maternal education, cognitive ability, and family involvement were also measured. Over half of the children who participated in this study had poor language outcomes overall. No significant differences were found in language outcomes on any of the measures for children who were diagnosed early and those diagnosed later. Multiple regression analyses showed that family participation, degree of hearing loss, and cognitive ability significantly predicted language outcomes and together accounted for almost 60% of the variance in scores. This article highlights the importance of family participation in intervention programs to enable children to achieve optimal language outcomes. Further work may clarify the effects of early diagnosis on language outcomes for preschool children.  相似文献