Representation strength in pigeon short-term memory: Effect of delay training

An attempt was madeto manipulate the strength of internal stimulus representations by exposing pigeons to brief delays between sample offset and comparison onset in a delayed conditional discrimination. In Experiment 1, pigeons were first trained on delayed conditional discrimination with either short (0.5-sec) delays or no delays. When delays were increased by 2.0 sec, birds trained with a delay performed at a higher level than did birds trained with no delays. In Experiment 2, subjects were first trained on a delayed simple discrimination. Following a circle stimulus, responses to a white key were reinforced; however, following a dot stimulus, responses to the white key were not reinforced. The pigeons were then trained on a delayed conditional discrimination involving hue samples and line-orientation comparisons with differential outcomes. Choice of vertical following red yielded food; choice of horizontal following green yielded no food. Mixed delays were then introduced to birds in Group Delay, whereas birds in the control group received overtraining. When tested on a delayed simple discrimination with hue stimuli (red and green initial stimuli followed by white response stimulus), pigeons in Group Delay tended to perform at a higher level than did birds in the control group (i.e., although the birds in both groups responded more following red than following green, birds in Group Delay did this to a greater extent than did birds in the control group). Thus, experience with delays appears to strengthen stimulus representations established during training.     

Sexual and reproductive health information sources preferred by out-of-school adolescents in rural southwest Uganda

This paper defines how out-of-school adolescents from Masaka District in rural southwest Uganda currently receive sexual and reproductive health information and how they would prefer to receive that information. Information adolescents feel they lack falls into three broad categories: sexual and reproductive health issues, the negotiation of sex and sexual relationships, and making the transition to adulthood. The preferred source for information depends on the type of information to be delivered, the overriding principle being that the source must be authoritative in that type of information. Current information sources including family, peers and media are perceived as either flawed or insufficient. Preferable sources fall into three categories based on the type of information provided: accurate sexual and reproductive health information should come from trained community and media-based rather than clinic-based health educators; information about negotiation of good relationships and the negotiation of sex and condom use within relationships should come from an up-skilled traditional source, ssenga (paternal aunt), particularly for young women; and social information about becoming a good adult should come from parents, grandparents, church and community leaders. All information should be positively framed and non-judgemental. Centrally coordinated community health promotions delivered by trained community-based health educators, ssenga and parents, guided and supported by existing radio and print media, are required.     

Documentation: A Hard to Reach Place

Some educators experience difficulty documenting young children’s work in early childhood settings because of a limited understanding of the importance of documentation, what or how to document, and the effective use of documentation; limited resources (time, tools, and assistance); or predetermined curricular guidelines. Some teachers, especially inexperienced early years teachers, have trouble engaging with children and documenting simultaneously, revealing a crucial misunderstanding about the purpose of documenting. Teachers at Reggio Emilia-inspired schools throughout the United States use many forms of documentation to enhance the qualities of children’s experiences in preschool classrooms. This article addresses the dilemmas teachers face in implementing documentation in order to assist them as they move from standards-based teaching and teacher-determined content to a more constructivist approach to teaching. Ideas for using documentation shared by the authors will allow young children to construct their own knowledge and curiosity, making learning more meaningful to them and more visible to others.

Quality and Equity in Australian Universities: Contradictions and Challenges

There is no apparent relationshipd bettwen the outcome of 1993 CQAHE quality ratings and universities’ standing on several measures of equity performance. Further, there is no relationship between the overall quality ratings and the content of universities’ submissions referring to equity issues.     

Support for EE From the National Science Education Standards and the Internet

Abstract

Two recent developments are likely to have a significant impact on the future of EE: (1) education reform initiatives based on the National Science Education Standards and (2) the development of promising Internet resources for teaching environmental sciences. This article urges the EE community to recognize that the time is ripe for environmental educators to embrace these developments. We examine several Internet-based resources that are used as tools for implementing standards-based reforms and promotion of EE's goals in K-12 classrooms.     

Make learning personal: Recommendations for classroom practice

Structuring the curriculum and the classroom experience in ways that promote community building and develop an appreciation for diversity is a powerful way to deepen and personalize a student's learning experience.     

Introduction: Reflexions on Interdisciplinarity in Adapted Physical Activity

ABSTRACT

The articles included in this special issue of Quest emerged from a research workshop entitled Thinking About Our Thinking in Adapted Physical Activity, held at the University of Alberta in Edmonton, Canada, from June 18–19, 2013. The aim of the workshop was to examine different worldviews that contribute to the adapted physical activity research literature, to identify key disciplinary assumptions, and to outline their consequences for multidisciplinary and interdisciplinary research in the field. A lack of understanding of the basic assumptions held by researchers often impedes communication between the disciplines. Hence, a sub-theme of this special issue is communication across disciplines. These conversations are, of course, essential to interdisciplinary inquiry.