Learn locally, act globally: Learning language from variation set cues

Variation set structure - partial overlap of successive utterances in child-directed speech - has been shown to correlate with progress in children’s acquisition of syntax. We demonstrate the benefits of variation set structure directly: in miniature artificial languages, arranging a certain proportion of utterances in a training corpus in variation sets facilitated word and phrase constituent learning in adults. Our findings have implications for understanding the mechanisms of L1 acquisition by children, and for the development of more efficient algorithms for automatic language acquisition, as well as better methods for L2 instruction.     

Conflicting cues in a dynamic search task are reflected in children's eye movements and search errors

Three-year-olds were given a search task with conflicting cues about the target's location. A ball rolled behind a transparent screen and stopped behind one of four opaque doors mounted into the screen. A wall that protruded above one door provided a visible cue of blockage in the ball's path, while the transparent screen allowed visual tracking of the ball's progress to its last disappearance. On some trials these cues agreed and on others they conflicted. One group saw the ball appear to pass through the wall, violating its solidity, and another group saw the ball stop early, behind a door before the visual wall. Children's eye movements were recorded with an Applied Science Laboratories eye tracker during these real object events. On congruent trials, children tended to track the ball to the visible barrier and select that door. During conflict trials, children's eye movements and reaching errors reflected the type of conflict they experienced. Our data support Scholl and Leslie's (1999) hypotheses that spatio-temporal and contact mechanical knowledge are based on two separate, distinct mechanisms.     

Ethics, pandemics, and the duty to treat

Numerous grounds have been offered for the view that healthcare workers have a duty to treat, including expressed consent, implied consent, special training, reciprocity (also called the social contract view), and professional oaths and codes. Quite often, however, these grounds are simply asserted without being adequately defended or without the defenses being critically evaluated. This essay aims to help remedy that problem by providing a critical examination of the strengths and weaknesses of each of these five grounds for asserting that healthcare workers have a duty to treat, especially as that duty would arise in the context of an infectious disease pandemic. Ultimately, it argues that none of the defenses is currently sufficient to ground the kind of duty that would be needed in a pandemic. It concludes by sketching some practical recommendations in that regard.     

USING FIXED‐TIME SCHEDULES TO MAINTAIN BEHAVIOR: A PRELIMINARY INVESTIGATION

The purpose of this study was to evaluate the potential of fixed‐time (FT) schedules to maintain behavior. Two children who had been diagnosed with autism were taught a functional task. Subsequently, three different FT schedules (i.e., yoked, thin, dense) were compared to determine their capacity to maintain task responding. Results suggested that FT schedules may be used to maintain previously acquired behavior.     

A model career assistance process for individuals with severe disabilities

This article describes a model process for providing career services to individuals with severe disabilities and presents the outcomes of a 3‐year demonstration project. After completing a career workshop series based at a community college followed by job search support and ongoing follow‐up with employers and employees, all 40 project participants achieved paid employment, with 74.4% employed midway through Year 3. Jobs represented a wide range of occupational areas, and most jobs paid over the minimum wage and included benefits. Implications for enhancing career services and outcomes for this population are discussed.     

A metaphor analysis in treatments of depression: Metaphor as a marker of change

This paper examines the use of ‘burden' metaphors relating to the experience of depression in one good and one poor outcome process-experiential short-term psychotherapy dyad. Burden-metaphors are meaningful as they appear to characterize the way these clients experience the course of their depressions (e.g. Korman & Angus, 1995). Understanding how these experiences are dealt with in productive therapies, as compared to less-productive treatments, can aid in therapist training and in developing therapeutic programmes for depressed clients. The Experiencing Scale (Klein et al., 1970) and the Narrative Process Coding System (Angus et al., 1996) are used to examine the processes at play when burden-metaphors are used in the good and the poor therapy. Results indicate that, in the good outcome dyad, metaphors of ‘being burdened' were transformed into metaphors of ‘unloading the burden' over the course of the therapy, while there was no transformation evident in the poor-outcome dyad. The good outcome therapy tended to have a higher level of experiencing when discussing burden-metaphors, in comparison with the poor-outcome therapy. Furthermore, the successful dyad tended to more often use internal narrative sequences (as identified by the NPCS) in the exploraiton of metaphoric expression.     

Unwanted Identities: A Key Variable in Shame–Anger Links and Gender Differences in Shame

The present study examined the role that unwanted identities play in accounting for extant findings concerning gender differences in shame-proneness. The construct of unwanted identities was also used to explain why powerful associations have been found between shame and anger. College students (48 men, 84 women) rated their feelings of shame, guilt, anger, and unwanted identities in response to the TOSCA-2 scenarios, known to yield robust gender differences in shame, and to new scenarios, meant to be more threatening to men's than women's identities. Even after accounting for shared variance between shame and guilt, evidence supported the conclusion that women's greater shame-proneness than men's could be an artifact, reflecting the more threatening nature of previous situations to women's identities. Mediational analyses also confirmed that unwanted identities elicit shame, which, in turn, is a powerful instigator of anger. Discussion focuses on inconsistencies between the present results and expectations based on previous theory and research.     

Developmental Differences in the Influence of Distractors on Maintenance in Spatial Working Memory

This study examined whether attention to a location plays a role in the maintenance of locations in spatial working memory in young children as it does in adults. This study was the first to investigate whether distractors presented during the delay of a spatial working-memory task influenced young children’s memory responses. Across 2 experiments, 3- and 6-year-olds completed a spatial working-memory task featuring a static target location and distractor location. Results indicated a change from 3 years to 6 years of age in how distractors influenced memory. Six-year-olds’ memory responses were biased away from a distractor that was close to the target location and on the outside of the target location relative to the center of the monitor. Distractors that were far from the target or that were toward the center of the monitor relative to the target location had no effect. Three-year-olds’ responses were biased toward a distractor when the distractor was on the outside of the target location and farther from the target. Distractors that were near the target location or toward the center of the monitor had no effect. These biases provide evidence that young children’s maintenance of a location in memory is influenced by attention.     

Describing scenes hardly seen

Knowledge about scene categories, the so-called gist, can be extracted very rapidly, while recognition and naming of individual scene objects is a more effortful process. We investigate this phenomenon by presenting action scenes involving two actors for durations varying between 100 and 300 ms. Incoherence was created by mirroring individual scene actors. Upon masked presentation participants had to report content, actors and objects and to indicate whether the scene was meaningful or not. Scene coherence was judged correctly at all presentation durations. Actors were correctly identified in about one-third of the cases even with presentation durations of 100 ms, and identification rate increased up to 80% with longer durations. Identification depended on scene coherence, on the position of agents in the scene, and on the position of actors relative to the fixation cross. These interdependencies of scene and object perception indicate that the visual system seems to be very sensitive to meaningful interactions of living entities. A series of fixations is not necessary to identify actors of a scene.