118 resultados para Perceptual Rivalry


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The ‘rubber-hand’ illusion, in which individuals misattribute tactile sensations felt by their hand to a rubber prosthetic hand that they see being stimulated, was employed to examine the relationship between perceptual body image and unhealthy body change in 128 volunteers. Variance in unhealthy body development in males (22%) and in bulimic symptomatology in both females and males (10%), was explained by susceptibility to the illusion. The illusion, which is relatively free from cognitive and emotional ‘contamination’, could be used to identify individuals most responsive to therapies designed to correct inaccurate body perceptions–individuals whose perceptual body image is malleable.

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This paper develops a weighted multi-dimensional perceptual rankings based on respondents evaluation of a journals prestige, contribution to theory, contribution to practice and contribution to teaching. Comparisons are made between rankings of individual criteria and composite rankings. Comparisons are also made to recent single dimension perceptual-based rankings and citation-based rankings.

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This paper seeks to develop groupings of journals (A, B, C) using multi-dimensional perceptual rankings, based on North American respondents’ evaluation of a journal’s prestige, contribution to theory, contribution to practice and contribution to teaching. Nonparametric comparisons of criterion mean values indicate that there are generally statistically significant correlations between criteria. Cluster analysis identifies A, B, and C 'categorisations' of journals are different in regards to all four evaluative criteria.

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Shamanism has remained an integral part of indigenous healing rituals since ancient times and is currently attracting interest as a complementary therapeutic technique in psychology. Recently, shamanic-like techniques have been used to facilitate changes in the phenomenology of nonshamans. However, such research has largely been delimited to a single shamanic-like technique (i.e., drumming), and the role of personality traits with regards to receptivity to this technique has been neglected. The purpose of the present study was to investigate experimentally the effect of different shamanic-like techniques and the cognitive-perceptual factor of the schizotypy construct on phenomenology. One hundred and four non-shamans were randomly assigned to one of three conditions: Drumming, Ganzfeld, or Sitting Quietly with Eyes Open. Participants' phenomenology was assessed using the Phenomenology of Consciousness Inventory, Phenomenology associated with shamanic-like techniques appeared to be statistically significantly different from phenomenology associated with sitting quietly with eyes open. Furthermore, high cognitive-perceptual participants reported significant alterations in phenomenology compared to their low cognitive-perceptual counterparts. Methodological shortcomings of the present study are discussed and suggestions for future research are advanced.

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Within 20th. Century art, the concept of the ‘normative’ image, as an attribute of things, has been challenged. As a consequence, paintings must now picture the ‘real’ world in other ways, incorporating knowledge and meaning beyond the analogon. Such descriptive representations were revealed as paradigmatic, rather than incontrovertible fact. Dependent on pre-conceived notions of stereotypicality, these descriptive images relied on surface illumination. My thesis explores images of things in the world as culturally inspired and information based. I examine paintings and sculptures of other cultures, such as black African, and other historical periods such as the Medieval, which reveal metonymously the basis for variations in representations of the ‘real’ world. The new enhanced representations which Modern artists created in their work were denigrated as deviant from the absolute ‘normative’ or regarded as distortions for purely mannerist and stylistic reasons. Postmodern research has reassessed them as multiple or extended imagings in whose facture new knowledge and human responses can be incorporated. These new forms of representation can be regarded as theoretical constructs rather than stylised depictions of appearance. In this way referents are transferred through the mind onto objects and vistas in the real world to align with our developed view of the physical world and better our understanding of humanity’s symbiotic relationship with nature.

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South Asia has emerged in the post-Cold War era as a region where ongoing nuclear rivalry has the potential to result in a nuclear exchange between India and Pakistan. The United States, together with the global community, is devoting considerable effort to prevent the further development and deployment of nuclear weapons by India and Pakistan. This thesis analyses the underlying reasons for the ongoing nuclear rivalry between India and Pakistan, details post-Cold War initiatives to end the nuclear rivalry and examines the prospect of United States efforts to cap, reduce and eventually eliminate the nuclear arsenals of India and Pakistan. The thesis finds that historical factors form the basis of the continuing hostility and animosity between the two nations. The two nations have been bitter rivals since the time of partition in 1947 and the disputed territory of Kashmir continues to be the manifestation of deep seated antagonism and hostility. Pakistan's geography leaves it extremely vulnerable to conventional Indian attack and possession of nuclear weapons is seen as a means to redress the imbalance. Strong domestic support together with fervent nationalism and international prestige will continue to drive the nuclear programs of each nation. This thesis concludes that the nuclear rivalry between India and Pakistan is regional in nature and the end of the Cold War has done little to improve the prospects for nuclear disarmament in the region. United States led efforts have failed to persuade India or Pakistan to either accede to the Non-Proliferation Treaty (NPT) or dismantle their nuclear weapons. The thesis also notes that the United States has failed to take account of China as a significant regional power and it's impact on the nuclear programs of India and Pakistan. A fresh approach (to include China) with more emphasis on regional dialogue is suggested as a first step to ending the nuclear rivalry.

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This study examined the effects of game situation information, manipulated in terms of time and score, on decisions made in a video-based perceptual test in basketball. The participants were undergraduate university students (n=159) who viewed 21 offensive basketball plays, under two test conditions (low decision criticality; high decision criticality). To manipulate the conditions, prior to each clip, the
participants were presented with a description of the remaining time and score differential. High decision criticality situations were characterised by a remaining time of 60 seconds or less and score differentials of 2 points or less. Low decision criticality situations were characterised by remaining time of 5 minutes or more and score differentials of 5 points or more. The participants indicated their decision (pass, shoot, dribble) after the visual display had been occluded for each clip. The results indicated that decision profiles differed under the low and high decision criticality conditions. More pass decisions were made under high decision criticality situations and more shoot decisions under low decision criticality situations. These variations differed according to the type of main sport played but not for the basketball competition level. It was concluded that game situation information does influence decision making and should be considered in video-based testing and training.