Unequal weighting of monocular inputs in binocular combination: implications for the compression of stereoscopic imagery

For efficient storage and transmission of stereoscopic images over bandwidth-limited channels, compression can be achieved by degrading 1 monocular input of a stereo pair and maintaining the other at the desired quality. The desired quality of the fused stereoscopic image can be achieved, provided that binocular vision assigns greater weight to the nondegraded input. A psychophysical matching procedure was used to determine if such over-weighting occurred when the monocular degradation included blur or blocking artifacts. Over-weighting of the nondegraded input occurred for blur, but under-weighting of the nondegraded input occurred for blockiness. Some participants exhibited ocular dominance, but this did not affect the blur results. The authors conclude that blur, but not blockiness, is an acceptable form of monocular degradation.     

Comparing the self-concepts of Hong Kong Chinese adults with visible and not visible physical disability

In the present study, the authors evaluated the self-concept levels of Hong Kong Chinese adults with visible and not visible physical disabilities. Fifty-five Hong Kong Chinese (22 men and 33 women) aged 18 to 55 (M = 39.50, SD = 10.21) participated-20 without physical disabilities (control group), 20 with visible physical disabilities, and 15 with physical disabilities that were not visible. All the participants responded to the Self-Concept Questionnaire for Hong Kong Chinese With Physical Disabilities (SCQPD; S. F. Tam & D. Watkins, 1997). The group with visible disabilities scored significantly lower in self-concept than did the control group and the group with disabilities that were not visible. There were also significant differences between specific facets of self-concept for people with visible and not visible disabilities. It was interesting to find that there was no significant difference in self-concept levels between the not visible group and the control group. The implications for rehabilitation and social services for these various groups are discussed.     

Weltanschauung as a priori: sociology of knowledge from a ‘romantic’ stance

In this paper I reconstruct the central concept of the young Lukács??s and Mannheim??s sociology of knowledge, as they present it in their writings in the early decades of the twentieth century. I argue that this concept, namely Weltanschauung, is used to refer to some conceptually unstructured totality of feelings, which they take to be a condition of possibility of intellectual production, and this understanding is contrasted to an alternative construal of the term that presents it as logically structured, quasi-theoretical background knowledge. This concept has Kantian reminiscences: it is a condition of possibility of intellectual production in general. The young Mannheim and Lukács rely on ??Weltanschauung?? so understood as a phenomenon mediating between the facts of society and individual intellectual production and reception: it is seen as being conditioned by sociological facts and therefore as a historical and sociological category through which, and therefore indirectly, society enters into intellectual production.     

Evaluating vigilance deficits in ADHD: a meta-analysis of CPT performance

We meta-analytically review 47 between-groups studies of continuous performance test (CPT) performance in children with attention-deficit/hyperactivity disorder (ADHD). Using a random effects model and correcting for both sampling error and measurement unreliability, we found large effect sizes (δ) for overall performance, but only small to moderate δ for performance over time in the handful of studies that reported that data. Smaller δs for performance over time are likely attributable, in part, to the extensive use of stimuli for which targets and distractors are quite easily differentiated. Artifacts accounted for a considerable proportion of variance among observed δs. Effect sizes reported in previous reviews were significantly attenuated because of the presence of uncorrected artifacts and highlight the necessity of accounting for artifactual variance in future work to determine the amount of true neurocognitive heterogeneity within ADHD. Signal detection theory and diffusion modeling analyses indicated that the ADHD-related deficits were because of decreased perceptual sensitivity (d') and slower drift rates (v). Results are interpreted the context of several recent models of ADHD.     

The search for an image of man

The present paper offers a narrative of the post-World War II development of Hungarian philosophy, and argues that it is characterized by a double, historical and anthropological orientation under Marx’s influence. The resulting amalgam is an intellectual history that looks beyond the ideas themselves, searching for underlying images of man which are represented as ideological backgrounds to theories of nature, society, cognition, etc. The most important works of this approach interpret ideas and anthropologies within a Marxist framework, and see them as closely linked to the social–historical circumstances in which they develop; yet, these approaches represent an alternative attitude quite different from the official ideology of dialectical materialism.     

The nature and position of processing determines why forgetting occurs in working memory tasks

The effect of potentially distracting processing within working memory was examined by varying the nature and position of processing across conditions of a Brown-Peterson-like task. Separate groups of participants carried out verbal or visuospatial processing operations on identical stimuli, while retaining lists of to-be-remembered words. The number of words presented either before or after the processing interval was varied systematically. Results showed that although verbal processing was no more demanding than visuospatial processing, it led to greater forgetting. However, forgetting was confined to items presented prior to processing, and the difference in degree of forgetting shown by the two groups was maximal when four items occurred before processing. Temporal isolation effects were more marked in the verbal processing group. These findings indicate that individuals can keep active a limited number of items in primary memory during processing, unless processing blocks rehearsal, in which case retrieval occurs from secondary memory.     

Spiritual Transcendence and Mental Health of Psychotherapists and Religious Professionals in a Hungarian Adult Sample

In this study we examine whether components of spiritual transcendence can explain individual differences in mental health in a Hungarian adult sample (N = 583), with a special focus on the associations in two subsamples, religious professionals and psychotherapists. Using the Spiritual Transcendence Scale (STS), we found that religious professionals presented higher Prayer Fulfillment and Universality than psychotherapists; however, members of both professional groups scored higher than other professionals on these dimensions. By contrast, psychotherapists were superior to religious professionals in Connectedness. Moreover, higher Universality predicted better mental health, even after controlling for gender, age, profession, and basic personality traits. No interaction effects were found between profession and the subscales of the STS. Results suggest that the potential mental health benefits of spirituality, especially in form of a universal view of existence, are equally present in both specific professions and in the general sample, whereas the professions themselves still reflect differences both in spirituality and in well-being.     

The telltale face: Possible mechanisms behind defector and cooperator recognition revealed by emotional facial expression metrics

In this study, we investigated the role of facial cues in cooperator and defector recognition. First, a face image database was constructed from pairs of full face portraits of target subjects taken at the moment of decision‐making in a prisoner's dilemma game (PDG) and in a preceding neutral task. Image pairs with no deficiencies (n = 67) were standardized for orientation and luminance. Then, confidence in defector and cooperator recognition was tested with image rating in a different group of lay judges (n = 62). Results indicate that (1) defectors were better recognized (58% vs. 47%), (2) they looked different from cooperators (p < .01), (3) males but not females evaluated the images with a relative bias towards the cooperator category (p < .01), and (4) females were more confident in detecting defectors (p < .05). According to facial microexpression analysis, defection was strongly linked with depressed lower lips and less opened eyes. Significant correlation was found between the intensity of micromimics and the rating of images in the cooperator‐defector dimension. In summary, facial expressions can be considered as reliable indicators of momentary social dispositions in the PDG. Females may exhibit an evolutionary‐based overestimation bias to detecting social visual cues of the defector face.