Reacquisition following extinction in appetitive conditioning

In four experiments utilizing an appetitive conditioning preparation, reacquisition of conditioned responding was found to occur both rapidly and slowly following extinction. In Experiment 1, acquisition of responding to a tone that had been conditioned and extinguished occurred more rapidly than acquisition in either a group that received equivalent exposure to the food unconditioned stimulus or a “rest” control group that received only exposure to the apparatus in the first two phases. However, reacquisition was impaired relative to acquisition in a “learning-experienced” group that had previously received conditioning and extinction with a different stimulus. Experiments 2 and 3 produced similar results, but also found that high responding during reacquisition was confined to trials that followed reinforced, rather than nonreinforced, trials. Experiment 4, in which very few initial conditioning trials were used, produced reacquisition that was slow compared with both learning-experienced and rest controls. The results are consistent with a role for sequential learning: Reacquisition is rapid when animals have learned that reinforced trials signal other reinforced trials.     

Refusing to settle for pigeons and parks: urban environmental education in the age of neoliberalism

The institutionalization of neoliberal reforms that began to take hold in the 1970s were by and large ‘common-sense governance’ by the 1990s. While the growing predominance of neoliberal discourse and marginalization of alternatives in environmental education is disconcerting on the level of policy, this paper explores an equally troubling phenomenon: the deepening of a neoliberal logic, such that it pervades the way we understand and relate with the world. Specifically, this paper draws upon an experience at a recent environmental education conference whereby participants were invited to explore three place-based inquiries inspired by Aldo Leopold in an urban environment: what is happening here? what has happened here? and what should happen here? Although the intention of the workshop was to explore some of the challenges involved in implementing a critical pedagogy of place, many of the participants seemed unwilling to criticize the way in which an urban downtown core suppresses the more-than-human aspects of place. We contend that environmental education is a key arena for debating the limits of neoliberalism and explore how these well-intentioned, but ultimately uncritical responses, run the risk of being appropriated by the ecologically destructive logic-informing neoliberal natures.     

Bridging the gap between observation protocols and formative feedback

In this study, we sought to identify how feedback about classroom observations affected novice university mathematics instructors’ (UMIs) teaching practices. Specifically, we examined how a Red–Yellow–Green feedback system (RYG feedback) affected graduate student instructor (GSI) scores on an observation protocol (GSIOP). The protocol was developed specifically for this population, and both the GSIOP and RYG feedback were used within a peer mentoring program for GSIs, wherein novice GSIs were mentored by more experienced GSIs. Mentors observed novices’ classrooms using the GSIOP and provided RYG feedback as part of observation–feedback cycles. We analyzed 100 sets of scores, each collected over the course of a semester containing on average three observation–feedback cycles. Analyzing the semester-long datasets longitudinally provided insight into what types of feedback informed and influenced observed teaching. After qualitatively coding the feedback provided to the GSIs by their mentors along multiple dimensions, we found certain forms of feedback were more influential for observable changes in GSIs’ teaching. For example, pedagogical feedback that included contextualization (context and focal events) demonstrated a more positive change in GSIOP score than feedback that lacked contextualization. Our results suggest that contextual formative feedback has a positive change to student-focused and teacher-focused observations.

     

Fine-Tuning the Institutional Repository: Evaluating the Self-Archiving Behavior of Researchers in Music

While self-archiving gains more traction as a means for scholars to make their research freely available, a perception persists that certain disciplines in the humanities lag behind the sciences in this regard. This article investigates the rate of self-archiving by scholars contributing to the top journals in the field of music, a discipline that traditionally falls within the humanities, although research in the field is highly interdisciplinary and draws heavily on multiple scientific fields. The contributors to these journals come from a range of background and interests, and represent colleges and universities from six continents.     

Exploring neglected narratives: understanding vulnerability in narrative inquiry

Framed by a question around vulnerability in narrative inquiries, we show the multiple ways that vulnerability is evident in narrative inquiry. We take up the concerns around vulnerability to show how, as narrative inquirers, we are searching to find ways to think with vulnerability and with what others have called neglected narratives. Drawing on one study with Aboriginal youth and their families, we make visible how questions of vulnerability need to be considered in framing of research puzzles, selecting participants, and moving from field to field texts to interim and final research texts. In composing final research texts, we struggled with the notions of vulnerability that are placed on Aboriginal youth by labels and single stories. These assigned vulnerabilities lead to interpretations that could create experiences of judgment. We returned again to the importance of making experiences visible, in order to shift understandings of who Aboriginal youth are, and are becoming, in a complex world that will not write over or ‘erase their Indianness’ nor their or our vulnerabilities. We showed the ways questions of vulnerability are inextricably interwoven into narrative inquiry.