Intertrial unconditioned stimuli differentially impact trace conditioning

Three experiments assessed how appetitive conditioning in rats changes over the duration of a trace conditioned stimulus (CS) when unsignaled unconditioned stimuli (USs) are introduced into the intertrial interval. In Experiment 1, a target US occurred at a fixed time either shortly before (embedded), shortly after (trace), or at the same time (delay) as the offset of a 120-s CS. During the CS, responding was most suppressed by intertrial USs in the trace group, less so in the delay group, and least in the embedded group. Unreinforced probe trials revealed a bell-shaped curve centered on the normal US arrival time during the trace interval, suggesting that temporally specific learning occurred both with and without intertrial USs. Experiments 2a and 2b confirmed that the bulk of the trace CS became inhibitory when intertrial USs were scheduled, as measured by summation and retardation tests, even though CS offset evoked a temporally precise conditioned response. Thus, an inhibitory CS may give rise to new stimuli specifically linked to its termination, which are excitatory. A modification to the microstimulus temporal difference model is offered to account for the data.     

Professionals' perceptions of the role of literacy in early intervention services

The purpose of the current study was to examine therapists' perceptions about literacy in early intervention services. Little effort has been devoted to the incorporation of literacy into therapy services for very young children with special needs. In an attempt to understand how therapy providers view the role of literacy in their services, 168 providers were surveyed. Responses were compared and in general, speech therapists and developmental therapists reported similar rates of use of books and rhymes and similar attitudes about the role of literacy in services. In contrast, occupational and physical therapists were often similar in their responses, yet, in most analyses, their responses were significantly different than the speech and developmental therapists'. This trend mirrors the existing literature that more attention has been devoted to encouraging the incorporation of literacy into speech services than other therapy services. Implications for these different practices and attitudes across disciplines are discussed. © 2008 Wiley Periodicals, Inc.     

Mind,Language and Artworks as Real Constraints on Students' Critical Reasoning about Meaning in Art

To engage in discussions of artwork meaning is to engage in critical reasoning, a factor that is central to the interpretation of artworks in the art classroom. While this may appear as a common‐sense claim that reflects the tacit assumptions most art educators have about students' critical dispositions in art, it is also evident that little is known about the deeper structures underlying students’ critical reasoning and how such structures shape students’ interpretations of artworks. Drawing on my research on students’ theories of critical meaning in art, this article explores the nature of practical and theoretical constraints on students’ critical reasoning about the meaning of artworks. I account for how intentional beliefs, language and representational artefacts function as a nexus of real constraints that condition students’ advance into interpretations of the social meaning of art. After briefly outlining the design and methodology of my study, I examine students’ critical reasoning performances during the formative period of development between middle to late childhood. The findings reveal that with increasing age students gradually learn to exercise their own critical intentions and represent inferences that acknowledge the significance of constitutive rules and force of a collective intentionality in the artworld on their interpretations of artworks as artefacts. I then make some conclusions about the relationship of domain‐specific shifts in art understanding, the role of intentionality, representational understanding, beliefs about art and reasoning skills to the linguistic, theoretical and artefactual constraints conditioning students’ intuitive advance into real understandings of art.     

Addressing Barriers to Technology Diffusion

ABSTRACT

In this paper we present a model for overcoming the significant barriers encountered by a small teacher education program in its effort to integrate technology within its curriculum. At the University of New England, teacher education faculty have succeeded in overcoming these impediments by collaborating with faculty in other programs of the institution. The model illustrates lessons learned over a period of four years as we moved from our initial ‘one step at a time’ plan to the current strategy. This successful model details our efforts to garner administrative and financial support, acquire hardware and software, provide opportunities for training and education, and develop technology rich learning experiences for our students.     

Working alliance as a mediator and moderator between expectations for counseling success and counseling outcome among Korean clients

The study examined client’s perceptions of working alliance as a mediator and moderator between client expectations of counseling success and counseling outcome. Participants were 284 adult clients in counseling in university or community counseling centers or private practices in South Korea. Level of functioning at the start of counseling was used to control for counseling outcome. Results of structural equation modeling analyses indicated that working alliance fully mediated the relationship between client expectations of counseling success and counseling outcome. In addition, moderation of counseling expectations by working alliance on counseling outcome was supported. Implications for research and practice are discussed.     

PARTNERED FIELD PLACEMENTS: COLLABORATION IN THE “REAL WORLD”

Research indicates that partner placements—pairing two preservice teachers with a mentor teacher—provide a supportive and collaborative context for learning to teach. This qualitative study examines three partner placements in a 100-hour urban field practicum to understand how preservice teachers experience and perceive partner placements, and what facilitates or inhibits collaboration. Results from two successful and one less than successful placement indicate that mutuality, scaffolding, and the appropriation of skills and resources facilitate productive collaboration and promote professional learning. However, participants revealed that partner placements are temporary scaffolding, which prepares one to become a teacher, but does not represent the “real world” of teaching. Recommendations are provided to guide the implementation or refinement of partner placements.     

Building the university/public school partnership: A workshop for mentor teachers

Abstract

Strong teacher education programs acknowledge the importance of a partnership between teacher education and public school faculties and the important role mentor teachers play in the education of student teachers. Studies suggest that mentor teachers trained in supervision are more effective than those who are not. This article describes the development, implementation, and evaluation of a workshop for mentor teachers that reflects the collaborative effort of university and public school faculties. The particular focus of this workshop was on giving feedback to student teachers. Evaluation data suggest that mentor teachers felt the workshop provided helpful information.     

The promise and the promises: Partnerships from a university perspective

Abstract

This study describes issues related to the genesis of two university and middle‐school partnerships as experienced and related by the university faculty members who have participated in the process.

Benefits and tensions have surfaced from these partnerships. Some of the benefits included a broader community of professional colleagues, opportunities to collaborate on research, and firsthand experiences with school reform. The tensions involved conflicts with the university's reward system, the length of time it takes to build trust, the difficulties in establishing collaborative research agendas and balancing two worlds, and feelings of detachment from university colleagues and activities.

Although promises have been made that the university's reward system will change to give priority to work in schools, this is a major concern for non‐tenured faculty. In spite of this, there is great potential in these partnerships to affect change in teacher education.