Managing,Understanding, Applying,and Creating Knowledge in the Information Age: Next-Generation Challenges and Opportunities

New media, new knowledge practices, and concepts point to the need for greater understanding of cognitive processes underlying knowledge acquisition and generation in open informational worlds. The authors of the articles in this special issue address cognitive and instructional challenges surrounding multiple document comprehension—a prerequisite of digital literacy and knowledge work in the information age. In this article, we raise issues of conceptual clarity regarding constructs such as source and document, and discuss work in disciplinary literacy and knowledge-building communities to clarify uses of information resources to support knowledge creation. The discussion aims to (a) provide insights into the cognitive and social practices needed for students to manage, understand, apply, and create knowledge and (b) suggest research directions to advance these goals.     

Residual Effects of Slavery: What Clinicians Need to Know

Marriage and family therapists grapple with the intersection of societal influence and African American clients’ presenting problems. Questions include: what impact has the historical trauma of slavery had on African Americans and what are the clinical implications of this trauma? This paper reviews the literature on the various residual effects of slavery (RES) within the African American community. A case vignette and a broad discussion of therapeutic techniques will be used to highlight the clinical implications of RES.     

Multiply Victimized Women: How Do They Change?

Recent studies have demonstrated that women are frequently victims of several types of violent actions via different agents throughout their life spans. Furthermore, multiple victimizations have been associated with psychological difficulties. The present study aimed to understand the change processes, in a self-directed way, of 19 female victims of multiple violent actions during their lifetimes. The women were evaluated for one year using a depression scale and a qualitative interview. The interviews were analyzed using the innovative moments (IMs) model. The results evidenced three groups, according to the evolution of their depressive symptoms during the one-year evaluation period. There were two unchanged groups, one being the symptomatic group (N = 6), which continuously presented symptoms at a clinical level, and the other the asymptomatic group (N = 7), which did not report depressive symptoms at any assessment moment. The change group (N = 6) exhibited a reliable decrease in clinically significant symptoms. Regarding IMs, the majority of the women were able to develop innovative moments regarding the dominant problem over a one-year evaluation period. Those women mobilized alternative ways to address multiple victimization experiences primarily through reflection IMs. Although there were several exceptions to the problematic narratives during the one-year assessment, the change group had a higher proportion and diversity of IM types—namely, a higher reconceptualization and reflection subtype II—compared with the unchanged groups. Moreover, reconceptualization differentiated the change group from the other two groups. These latter IMs may reflect the concept of “postvictimization growth” and the positive changes that arise from experiences of victimization.     

Time course of planning for object and action parameters in visually guided manipulation

Under visual guidance, subjects reached for and manipulated an object that variedin weight and surface texture (slipperiness). The manipulatory action was either grasping, lifting, or posting in a slot. The task was constrained or unconstrained with respect to speed, grasp pattern, and contact force. Initiation time (pre-reach), movement time (reach), and post-contact errors were measured, to examine planning for task performance at three points in time. Results indicate that in the constrained task, the manipulatory action was planned during the initiation time, but planning for object parameters was deferred until the reach interval. With relaxed task constraints, initiation times increased,and texture and manipulatory action had independent effects on premovement planning. Errors were affected interactively by all variables. The results suggest a planning process that unfolds over time, incorporating in turn the manipulatory action, object texture, and object weight. This unfolding accommodates variables proximate to the time where they will affect physical action.     

Object-based attention: strength of object representation and attentional guidance

Two or more features belonging to a single object are identified more quickly and more accurately than are features belonging to different objects--a finding attributed to sensory enhancement of all features belonging to an attended or selected object. However, several recent studies have suggested that this "single-object advantage" may be a product of probabilistic and configural strategic prioritizations rather than of object-based perceptual enhancement per se, challenging the underlying mechanism that is thought to give rise to object-based attention. In the present article, we further explore constraints on the mechanisms of object-based selection by examining the contribution of the strength of object representations to the single-object advantage. We manipulated factors such as exposure duration (i.e., preview time) and salience of configuration (i.e., objects). Varying preview time changes the magnitude of the object-based effect, so that if there is ample time to establish an object representation (i.e., preview time of 1,000 msec), then both probability and configuration (i.e., objects) guide attentional selection. If, however, insufficient time is provided to establish a robust object-based representation, then only probabilities guide attentional selection. Interestingly, at a short preview time of 200 msec, when the two objects were sufficiently different from each other (i.e., different colors), both configuration and probability guided attention selection. These results suggest that object-based effects can be explained both in terms of strength of object representations (established at longer exposure durations and by pictorial cues) and probabilistic contingencies in the visual environment.     

The space of an object: object attention alters the spatial gradient in the surround

Although object-based attention enhances perceptual processing of information appearing within the boundaries of a selected object, little is known about the consequences for information in the object's surround. The authors show that distance from an attended object's center of mass determines reaction time (RT) to targets in the surround. Of 2 targets in the surround, both equidistant from a cue, the target closer to the center of mass was detected faster. Moreover, RT was shown to be a linear function of distance from the center of mass of a fixed, attended object, and changes to the shape of the object and its center of mass predictably altered RT. Object-based attention leads to a pattern of facilitation in the surround that may contribute to the organization of visual scenes.     

The Kosovar sponsoring experience in Northern Alberta

We examine the experiences of sponsors who assisted Kosovar refugees in Northern Alberta. Although the sponsors of the Kosovars did not provide basic financial support to the refugees, many found their role to be onerous, particularly in terms of emotional investment and demands on their time. They would have liked more opportunity to debrief and to have contact with other experienced sponsors. Some of the sponsors' initial expectations of the Kosovars were at odds with reality; conversely, many sponsors felt that the refugees had unrealistic expectations of them and of life in Canada. Recommendations are made for future sponsoring arrangements.     

Bergson & Lévinas on the Genealogy of Mind

This paper presents the influence that Bergson’s theory of subjectivity had on Lévinas. We start by examining Bergson’s “centripetal theory of mind.” Considering the relationship between perception and action, Bergson develops an understanding of subjectivity as a process that unifies disparate perceptions. Guided by the body, this unifying principle is deemed affective. This being done, we then present a contradiction in Bergson’s thinking: While humans are described as different in kind from other animals, the framework used to determine the nature of their world remains unchanged. Bergson never fully embraced the centripetal theory. We then turn to Lévinas and compare his critiques of Bergson and Heidegger. Lévinas believes that both instrumentalize desire, and that a philosophy of subjectivity can only escape this problem by radically embracing the affective nature of Bergson’s centripetal theory. The latter accounts for the place of Lévinas’ phenomenology of enjoyment.