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181.
Haptically straight lines 总被引:1,自引:0,他引:1
In this research, we set out to investigate haptically perceived space. Large deviations with respect to physical space have already been shown to exist. Here, research on haptic space is continued by investigating straight lines constructed by touch. In four experiments, subjects were asked to produce straight lines between two reference markers that were in the horizontal plane at a fixed distance from each other. Each experiment corresponded to a different task: two different interpolation tasks, an intersection task, and a pointing task. Straight lines had an orientation that was approximately frontoparallel. Subjects used both hands; manipulation was unrestricted. Although we found considerable differences between observers, the overall pattern of results showed that haptically straight lines were generally curved away from the observer. However, in one of the interpolation tasks they corresponded to physically straight lines. In addition, the pointing task generally produced larger deviations than the other three tasks. Taken together, the results show that there is no unique definition of the straight line, a conclusion that questions the viability of the concept of haptic space. 相似文献
182.
Astrid E. Schwarz 《Nanoethics》2009,3(2):109-118
Nanotechnology has recently been identified with principles of sustainability and with a ‘green’ agenda generally. Some maintain that this green dream of nanotechnology is a rather ephemeral societal phenomenon that owes its existence to
the campaign ploys of politics and business. This paper argues that deeper lying societal and cognitive structures are at
work here that complement or even substantiate in some sense the seemingly manipulative saying of a greening of nanotechnologies.
Taking seriously the concept of ‘green nano’, this paper examines the common ground between sustainability discourse and the
discourse of nanotechnology. Green nanotechnology is understood as a boundary concept in which disparate discourses and concepts
join together. The primary concern of the paper is to show that nanodiscourse and ecodiscourse share visions of control and
of excess. Both ecotechnology and nanotechnology accept and incorporate arguments about limited growth, and each develops
strategies of control—be it through a new-found precision in the control of material flows or through greater efficiency in
product design. 相似文献
183.
184.
Astrid Mueller James E. Mitchell Ross D. Crosby Heide Glaesmer 《Behaviour research and therapy》2009,47(8):705-891
The aims of the study were to estimate the prevalence rate of compulsive hoarding, and to determine the association between compulsive hoarding and compulsive buying in a nationally representative sample of the German population (N = 2307). Compulsive hoarding was assessed with the German version of the Saving Inventory-Revised (SI-R; Frost, R.O., Steketee, G., & Grisham, J. (2004). Measurement of compulsive hoarding: saving inventory-revised. Behaviour Research and Therapy, 42, 1163-1182.). The point prevalence of compulsive hoarding was estimated to be 4.6%. Individuals with compulsive hoarding did not differ significantly from those without compulsive hoarding regarding age, gender, and other sociodemographic characteristics. Significant correlations were found between the compulsive hoarding and the compulsive buying measures. Participants with compulsive hoarding reported a higher propensity to compulsive buying than respondents without hoarding. About two thirds of participants classified as having compulsive hoarding were also defined as suffering from compulsive buying. In summary, these results suggest that compulsive hoarding may be relatively prevalent in Germany and they confirm the close association between compulsive hoarding and compulsive buying through the investigation of a large scale representative sample. 相似文献
185.
Human rights and correctional clinical practice 总被引:1,自引:0,他引:1
The formulation of human rights theory and policies represents an ethical advance and promises to supply a framework for resolving ethnic, social, and individual conflicts. Ethics is essentially a means for coordinating the conflicting interests of peoples and nations and human rights provide a strong foundation to do this in multiple domains. Our aim in this paper is to apply a human rights perspective, in association with a justifying theory and set of goods, to the correctional arena. First, we discuss the definition of human rights, their proper analysis and justification. We then apply the results of our discussion to the assessment, treatment, and monitoring of offenders. Finally, we consider the policy, research, and intervention implications of a human rights perspective for correctional practitioners. 相似文献
186.
Dipl.-Psych. Dr. Astrid Altenhöfer Wolfgang Schulz Reinold Schwab Jochen Eckert 《Psychotherapeut》2007,52(1):24-34
In this study we examined the effectiveness of an outpatient client-centered psychotherapy of patients with adjustment disorders (ICD-10 F43.2) limited to twelve sessions in comparison to an untreated control group. The patients of each group (ntreatment= 31 and ncontrol= 19) had been diagnosed with an adjustment disorder in response to one of the following stressful events: either the loss of an important person or performance deficits at work or university. Compared with the untreated control group the immediate therapy group improved significantly on rating scales and questionnaires. These positive treatment effects proved stable at a 3 months follow-up. Individual treatment gains were also analyzed for clinical and statistical significance. The improvements of the treatment group were significantly greater in all used measures than those of the control group. These improvements were interpreted as an effect of the client-centered treatment which resulted in high individual overall treatment gains and in high effectsizes. 相似文献
187.
In this study, we are interested in the following two questions: (1) how does perceived roughness correlate with physical roughness, and (2) how do visually and haptically perceived roughness compare? We used 96 samples of everyday materials, such as wood, paper, glass, sandpaper, ceramics, foams, textiles, etc. The samples were characterized by various different physical roughness measures, all determined from accurately measured roughness profiles. These measures consisted of spectral densities measured at different spatial scales and industrial roughness standards (R(a), R(q) and R(z)). In separate haptic and visual conditions, 12 na?ve subjects were instructed to order the 96 samples according to perceived roughness. The rank orders of both conditions were correlated with the various physical roughness measures. With most physical roughness measures, haptic and visual correspondence with the physical ordering was about equal. With others, haptic correspondence was slightly better. It turned out that different subjects ordered the samples using different criteria; for some subjects the correlation was better with roughness measures that were based on higher spatial frequencies, while others seemed to be paying more attention to the lower spatial frequencies. Also, physical roughness was not found to be the same as perceived roughness. 相似文献
188.
Mueller A Mueller U Albert P Mertens C Silbermann A Mitchell JE de Zwaan M 《Behaviour research and therapy》2007,45(11):2754-2763
Previous research has indicated that many compulsive buyers also suffer from compulsive hoarding. The present work specifically examined hoarding in a compulsive buying sample. Sixty-six treatment-seeking compulsive buyers were assessed prior to entering a group therapy for compulsive buying using the Compulsive Buying Scale (CBS), the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS)-Shopping Version, the Compulsive Acquisition Scale (CAS), the German-CBS, the Saving Inventory-Revised (SI-R), the Maudsley Obsessive Compulsive Inventory (MOCI), the Barratt Impulsiveness Scale (BIS-11), and the Structured Clinical Interview for DSM-IV Axis I (SCID). Inclusion criteria were current problems with compulsive buying according to the proposed diagnostic criteria for compulsive buying by McElroy, Keck, Pope, Smith, and Strakowski [(1994). Compulsive buying: A report of 20 cases. Journal of Clinical Psychiatry, 55, 242-248]. Our results support the assumption that many but not all compulsive buyers suffer from compulsive hoarding. A significant association between the SI-R and the compulsive buying measures CBS, Y-BOCS-SV, German-CBS, and the CAS-Buy subscale was found, which is mostly caused by the SI-R subscale acquisition. The SI-R subscales clutter and difficulty discarding were more closely associated with the CAS-Free subscale and with obsessive-compulsive symptoms. Hoarding compulsive buyers reported more severe buying symptoms and obsessive-compulsive symptoms and presented with a higher psychiatric co-morbidity, especially any current affective, anxiety and eating disorder. Specific therapeutic interventions for compulsive buyers who also report compulsive hoarding appear indicated. 相似文献
189.
Bridging faultlines by valuing diversity: diversity beliefs, information elaboration, and performance in diverse work groups 总被引:2,自引:0,他引:2
Homan AC van Knippenberg D Van Kleef GA De Dreu CK 《The Journal of applied psychology》2007,92(5):1189-1199
Although there are numerous potential benefits to diversity in work groups, converging dimensions of diversity often prevent groups from exploiting this potential. In a study of heterogeneous decision-making groups, the authors examined whether the disruptive effects of diversity faultlines can be overcome by convincing groups of the value of diversity. Groups were persuaded either of the value of diversity or the value of similarity for group performance, and they were provided with either homogeneous or heterogeneous information. As expected, informationally diverse groups performed better when they held pro-diversity rather than pro-similarity beliefs, whereas the performance of informationally homogeneous groups was unaffected by diversity beliefs. This effect was mediated by group-level information elaboration. Implications for diversity management in organizations are discussed. 相似文献
190.
Haptic parallelity perception on the frontoparallel plane: the involvement of reference frames 总被引:2,自引:0,他引:2
It has been established that spatial representation in the haptic modality is subject to systematic distortions. In this study, the haptic perception of parallelity on the frontoparallel plane was investigated in a bimanual matching paradigm. Eight reference orientations and 23 combinations of stimulus locations were used. The current hypothesis from studies conducted on the horizontal and midsagittal planes presupposes that what is haptically perceived as parallel is a product of weighted contributions from both egocentric and allocentric reference frames. In our study, we assessed a correlation between deviations from the veridical and hand/arm postures and found support for the role of an intermediate frame of reference in modulating haptic parallelity on the frontoparallel plane as well. Moreover, a subject-dependent biasing influence of the egocentric reference frame determines both the reversal of the oblique effect and a scaling effect in deviations as a function of bar position. 相似文献