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131.
Issues concerning sexual identity are not uncommon in therapy with adolescents, although they may manifest in a variety of ways. For young people who have experienced same-gender attractions or sexual experiences there is the question of how to absorb these experiences within the construction of a coherent sexual identity. In many cases the family context plays an important role in sexual identity formation and acceptance. Therapists too may play an important role in terms of two key aspects of sexual identity formation: self-definition and disclosure. Family therapists in particular occupy a unique position with respect to the adolescent and his or her family, opening up not only potential opportunities but also potential risks in practice. Practice issues are identified and explored in this paper. 相似文献
132.
In this study, the authors examined how task, informational, and sensorimotor system constraints influence postural control. Postural behavior of subjects with (n = 15) and without (n = 15) a key sensorimotor system constraint, anterior cruciate ligaments (ACLs) in 1 knee, was examined during 1- and 2-legged stance with and without vision. Postural control was assessed on a commonly used postural sway meter and on a dynamic stabilometer. Data on postural sway characteristics were obtained for 30 s under 6 different conditions: standing, with eyes open and closed, on both legs, on the injured leg, and on the noninjured leg. The interaction of task, informational, and sensorimotor constraints was observed only on the dynamic stabilometer and not the postural sway meter. Vision was the most important informational constraint on postural control for subjects on the dynamic stabilometer, particularly for the ACL-deficient group standing on the injured leg. Under more static task constraints, ACL deficiency did not prove a significant disadvantage, because vision was confirmed as a significant source of exproprioceptive information. The results support the functionality of using dynamic tasks such as a stabilometer in assessing postural behavior of subjects with sensorimotor system constraints. 相似文献
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In traditional theories of perceptual learning, sensory modalities support one another. A good example comes from research on dynamic touch, the wielding of an unseen object to perceive its properties. Wielding provides the haptic system with mechanical information related to the length of the object. Visual feedback can improve the accuracy of subsequent length judgments; visual perception supports haptic perception. Such cross-modal support is not the only route to perceptual learning. We present a dynamic touch task in which we replaced visual feedback with the instruction to strike the unseen object against an unseen surface following length judgment. This additional mechanical information improved subsequent length judgments. We propose a self-organizing perspective in which a single modality trains itself. 相似文献
135.
Cooperation versus competition in a mass emergency evacuation: A new laboratory simulation and a new theoretical model 总被引:1,自引:0,他引:1
John Drury Chris Cocking Steve Reicher Andy Burton Damian Schofield Andrew Hardwick Danielle Graham Paul Langston 《Behavior research methods》2009,41(3):957-970
Virtual reality technology is argued to be suitable to the simulation study of mass evacuation behavior, because of the practical
and ethical constraints in researching this field. This article describes three studies in which a new virtual reality paradigm
was used, in which participants had to escape from a burning underground rail station. Study 1 was carried out in an immersion
laboratory and demonstrated that collective identification in the crowd was enhanced by the (shared) threat embodied in emergency
itself. In Study 2, high-identification participants were more helpful and pushed less than did low-identification participants.
In Study 3, identification and group size were experimentally manipulated, and similar results were obtained. These results
support a hypothesis according to which (emergent) collective identity motivates solidarity with strangers. It is concluded
that the virtual reality technology developed here represents a promising start, although more can be done to embed it in
a traditional psychology laboratory setting. 相似文献
136.
Damian Cox 《Erkenntnis》2003,58(1):33-46
Hilary Putnam and Nelson Goodman are two of the twentieth century's most persuasive critics of metaphysical realism, however they disagree about the consequences of rejecting metaphysical realism. Goodman defended a view he called irrealism in which minds literally make worlds, and Putnam has sought to find a middle path between metaphysical realism and irrealism. I argue that Putnam's middle path turns out to be very elusive and defend a dichotomy between metaphysical realism and irrealism. 相似文献
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Bilingualism research has established language non-selective lexical access in comprehension. However, the evidence for such an effect in production remains sparse and its neural time-course has not yet been investigated. We demonstrate that German-English bilinguals performing a simple picture-naming task exclusively in English spontaneously access the phonological form of –unproduced– German words. Participants were asked to produce English adjective-noun sequences describing the colour and identity of familiar objects presented as line drawings. We associated adjective and picture names such that their onsets phonologically overlapped in English (e.g., green goat), in German through translation (e.g., blue flower – ‘blaue Blume’), or in neither language. As expected, phonological priming in English modulated event-related brain potentials over the frontocentral scalp region from around 440 ms after picture onset. Phonological priming in German was detectable even earlier, from 300 ms, even though German was never produced and in the absence of an interaction between language and phonological repetition priming at any point in time. Overall, these results establish the existence of non-selective access to phonological representations of the two languages in the domain of speech production. 相似文献
140.