Categorization influences illusory conjunctions

Illusory conjunctions (ICs) provide evidence for a binding problem that must be resolved in vision. Objects that are perceptually grouped are more likely to have their features erroneously conjoined. We examined whether semantic grouping, determined by category membership (letter vs. number), also influences illusory conjunction rates. Participants were instructed to detect an “L” or a “7” among briefly presented character strings and to report its color. Despite high shape discrimination accuracy, participants often made color conjunction errors, reporting instead the color of a distractor character, “O”. This distractor could be ambiguously interpreted as a letter or a number. The status of the “O” was determined by other noncolored flanker characters, which were either letters or numbers. When both the target and flankers were of the same category, participants made more ICs than when the target and flankers were of different categories. This finding demonstrates that alphanumeric categorization can precede and subsequently influence binding.     

Mechanism, Reduction, and Emergence in Two Stories of the Human Epistemic Enterprise

The traditional way of thinking about science goes back to the corpuscular philosophy with its micro-reductive mechanism and metaphor of reading God’s Book of Nature. This “story-1” with its rhetoric of exact truths contrasts with “story-2” which describes science as a continuation of the always imperfect powers of representation given to us by evolution. On story-2 reduction is one among other knowledge fashioning strategies and shares the imperfections of all human knowledge. When we appreciate that human knowledge always admits of refinement, what appear as “emergent properties” no long seems mysterious.     

On the notion of home and the goals of palliative care

The notion of home is well known from our everyday experience, and plays a crucial role in all kinds of narratives about human life, but is hardly ever systematically dealt with in the philosophy of medicine and health care. This paper is based upon the intuitively positive connotation of the term “home.” By metaphorically describing the goal of palliative care as “the patient’s coming home,” it wants to contribute to a medical humanities approach of medicine. It is argued that this metaphor can enrich our understanding of the goals of palliative care and its proper objectives. Four interpretations of “home” and “coming home” are explored: (1) one’s own house or homelike environment, (2) one’s own body, (3) the psychosocial environment, and (4) the spiritual dimension, in particular, the origin of human existence. Thinking in terms of coming home implies a normative point of view. It represents central human values and refers not only to the medical-technical and care aspects of health care, but also to the moral context.     

Pigeons can discriminate “good” and “bad” paintings by children

Humans have the unique ability to create art, but non-human animals may be able to discriminate “good” art from “bad” art. In this study, I investigated whether pigeons could be trained to discriminate between paintings that had been judged by humans as either “bad” or “good”. To do this, adult human observers first classified several children’s paintings as either “good” (beautiful) or “bad” (ugly). Using operant conditioning procedures, pigeons were then reinforced for pecking at “good” paintings. After the pigeons learned the discrimination task, they were presented with novel pictures of both “good” and “bad” children’s paintings to test whether they had successfully learned to discriminate between these two stimulus categories. The results showed that pigeons could discriminate novel “good” and “bad” paintings. Then, to determine which cues the subjects used for the discrimination, I conducted tests of the stimuli when the paintings were of reduced size or grayscale. In addition, I tested their ability to discriminate when the painting stimuli were mosaic and partial occluded. The pigeons maintained discrimination performance when the paintings were reduced in size. However, discrimination performance decreased when stimuli were presented as grayscale images or when a mosaic effect was applied to the original stimuli in order to disrupt spatial frequency. Thus, the pigeons used both color and pattern cues for their discrimination. The partial occlusion did not disrupt the discriminative behavior suggesting that the pigeons did not attend to particular parts, namely upper, lower, left or right half, of the paintings. These results suggest that the pigeons are capable of learning the concept of a stimulus class that humans name “good” pictures. The second experiment showed that pigeons learned to discriminate watercolor paintings from pastel paintings. The subjects showed generalization to novel paintings. Then, as the first experiment, size reduction test, grayscale test, mosaic processing test and partial occlusion test were carried out. The results suggest that the pigeons used both color and pattern cues for the discrimination and show that non-human animals, such as pigeons, can be trained to discriminate abstract visual stimuli, such as pictures and may also have the ability to learn the concept of “beauty” as defined by humans.     

From “Home” to “Camp”: Theorizing the Space of Safety

In this article, I discuss how the space of the classroom is a contested object that is constituted by historical, cultural, political, social, psychological, and discursive practices (Lefebvre in The production of space, Blackwell, Oxford, UK, 1991). I then employ Deleuze and Guattari’s notion of “assemblage” to characterize the ways in which educational spaces cohere “content and affect” quoted in Puar (Terrorist assemblages: Homonationalism in queer times, Duke University Press, Durham, 2007, 193) into discursive figures of the heteronormative and racialized national “family.” Finally, I argue that in order to advance contemporary theorizing on safe space we might consider shifting the metaphor of the classroom (and/or schooling) as a situation of home (in loco parentis) to that of a metaphor of camp. As a discursive practice, “camp” is like “home” in that it has multiple associations of past histories. However, the advantage of the metaphor of classroom as camp allows for a more capacious range of past histories of association, from recreation to temporary inhabitation to forced relocation, thus foregrounding the innate political implications of theorizing space. Moreover, the metaphor of camp implies transience (whether real or imaginary) while keeping in mind the partial and situated nature of particular places and spaces. Foregrounding the transient component/feature of safe space allows us to make visible and explore the possibilities and limitations of conceptualizing relations of power as circuitous, contested and performative through competing claims to particular places as objects of safety.     

Computing stress

This article is based on a review of recent literature on “computing stress”; that is, on the psychological stress effects of working with computer systems. Current research into the sources of computer-related stress has tended to concentrate on those employees who operate Visual Display Units (VDUs), either on a full-time professional basis as word-processor (WP) operators, data-entry clerks, secretaries, or those dealing with enquiries from the public; or employees who use the VDU irregularly as part of their other duties. A few studies have looked at specific occupation groups, such as printers (Kalimo & Lepp?nen, 1985), information technology professionals (programers and analysts), process workers, and college students (Sproull, Kiesler, & Zubrow, 1984). Generally, however, research has been carried out on office workers, more often women, carrying out administrative tasks. An attempt is made to identify those potential work-related stressors that have been isolated by these studies, and also included are criticisms of the general methodologies used in many of them. The terms “visual display unit,” “visual display terminal,” VDU, VDT, and “terminal” are used interchangeably.     

作为一项权利的人的尊严

The concept of human dignity and the relationship between dignity and human rights have been important subjects in contemporary international academia. This article first analyzes the different understandings of the concept of dignity, which has left great influences in history (including the “theory of attribution-dignity”, the “theory of autonomy-dignity” or the “theory of moral completeness/achievement-dignity”, and the “theory of end-in-itself-dignity”); it then exposes the obvious defects of these modes of understanding; finally, it tries to define dignity as a moral right to be free from insult. Meanwhile, the relationship between human dignity and human rights is clarified as a result of this research: Rather than being the foundation of human rights, human dignity is one of human rights. The idea of dignity nevertheless has a particular status in ethics in that it embodies a kind of core moral concern, representing a basic demand rooted in the human self or individuality, and hence representing an important aspect of human rights. We may anticipate that sooner or later, the idea of human dignity will become, together with other human rights, the only intangible cultural heritage of human society. __________ Translated by Zhang Lin from Zhexue yanjiu 哲学研究 (Philosophical Researches), 2008, (6): 85–92     

命与天命:儒家天人关系的双重视角

As a pair of important categories in traditional Chinese culture, “ming 命 (destiny or decrees)” and “tian ming 天命 (heavenly ordinances)” mainly refer to the constraints placed on human beings. Both originated from “ling 令 (decrees),” which evolved from “wang ling 王令 (royal decrees)” into “tian ling 天令 (heavenly decrees),” and then became “ming” from a throne because of the decisive role of “heavenly decrees” over a throne. “Ming” and “tian ming” have different definitions: “Ming” represented the limits Heaven placed on the natural lives of human beings and was an objective force that men could not direct, but was embodied in human beings as their “destiny”; “Tian ming” reflected the moral ideals of human beings in their self-identification; It originated in man but had to be verified by Heaven, and it was therefore the true ordinance that Heaven placed on human beings. “Ming” and “tian ming” are two perspectives on the traditional relationship between Heaven and human beings, and at the same time Confucians and Daoists placed different emphasis on them. Translated by Huang Deyuan from Zhongguo zhexueshi 中国哲学史 (History of Chinese Philosophy), 2007, (4): 11–21     

Response to Commentators of “A Critique of Positive Responsibility”

It has been claimed that (1) computer professionals should be held responsible for an undisclosed list of “undesirable events” associated with their work and (2) most if not all computer disasters can be avoided by truly understanding responsibility. Commentators of “A Critique of Positive Responsibility in Computing” argue that this is not Donald Gotterbarn’s view (Gotterbarn, JSEE 14(2):235–239, 2008) but that a critique of the view nevertheless raises significant moral issues within computing such as the ethical goals of a computing profession, the appropriate ethical stance toward bugs, and the public good with respect to computing (Miller, JSEE 14(2):245–249, 2008). Commentators also argue that “A Critique”’s “profitable misreading” demonstrates the “moral ecology” of organizations “dedicated narrowly to financial success” and that other “moral ecologies” that are customer or quality driven can be shown to be more important or preeminent (Huff, JSEE 14(2):241–244, 2008). It is argued here that (1) the hyper-inflated reading of Gotterbarn’s and Ladd’s views on positive responsibility persists despite Gotterbarn’s explicit rejection of it, and that (2) such a reading of positive responsibility cannot be placed within a single moral ecology, nor can a single moral ecology be shown to be any more important or preeminent than others. Stieb, J. A. (2008). A critique of positive responsibility in computing. Science and Engineering Ethics, 14(2), 219–233.     

The role of mental rotations in primate-inspired robot navigation

Scripts store the temporal order of component events of everyday activities as well as the temporal position of the events within the activity (early or late). When confronted with an activity, predictions are generated about how the component events will unfold. Thereby, an error-detection mechanism continuously monitors whether they unfold as anticipated or not in order to reveal errors in the unfolding activity. We investigated whether the temporal position “early” or “late” influenced the detection of errors using the pupillary response as an index of cognitive resource consumption. An event triplet consisting of three events was presented in a chronological or non-chronological temporal order. Crucially, the triplet focused either on the beginning (temporal position “early”) or the end (temporal position “late”) of an activity. We assumed that these position codes would be used to facilitate error detection when a non-chronological event was presented. Results showed that errors in the temporal order were detected more successfully in early than in late triplets. Results further suggest that strong predictions are formed about how an activity begins. Violations of this prediction must be overcome by zooming into the representation and allocating attention to the temporal position that consumes cognitive resources. Only after zooming in has taken place successfully may the position codes be used to anticipate temporal violations in unfolding event sequences.     

Fixing broken masculinity: Viagra asa technology for the production of gender and sexuality

In the twenty-first century, technology is not so easily divorced from the human body. Viagra, the blockbuster drug hailed as the “magic erection pill,” exemplifies the increasingly accepted technologically-enhanced body. After a history of medical experts applying technology to women’s bodies in times of weakness, male bodies are now deemed in need of treatment. As male bodies digress from “normal” (erect and penetrating) sexuality, techno-scientific advances promise to “fix” the problem, and thus the patriarchal “machine.” Thus, Viagra is both a material and cultural technology producing and reshaping gender and sexuality under the guise of techno-scientific progress. Drawing on my own ethnographic data, I explore the use and circulation of techno-scientific advancement and inevitability discourses and the ways in which masculinity and heterosexuality are reproduced, as well as contested, critiqued, and reshaped by those who prescribe, dispense, market, and/or use Viagra. Finally, I argue that Viagra is currently being understood and employed as a “tool” to avert or treat masculinity “in crisis” in the contemporary America. This research would not be possible without help from kind medical practitioners, consumers, and participants in the feminist writing group at UCSB.     

Psychophysiological components of imagery

McGuigan’s neuromuscular model of information processing (1978a, 1978b, and 1989) was investigated by electrically recording eye movements (electro-oculograms), covert lip and preferred arm responses (electromyograms), and electroencephalograms. This model predicts that codes are generated as the lips are uniquely activated when processing words beginning with bilabial sounds like “p” or “b,” as is the right arm to words like “pencil” that refer to its use. Twelve adult female participants selected for their high imagery ratings were asked to form images to three orally presented linguistic stimuli: the letter “p,” the words “pencil” and “pasture,” and to a control stimulus, the words “go blank.” The following findings were significant beyond the 0.05 level: an increased covert lip response only to the letter “p,” increased vertical eye activity to “p” and to the word “pencil,” right arm response only to the word “pencil,” and a decreased percentage of alpha waves from the right 02 lead only to the word “pasture.” Since these covert responses uniquely occurred during specific imagery processes, it is inferred that they are components of neuromuscular circuits that function in accord with the model of information processing tested.     

Merton’s “True Self”: A Resource for Survivors of Sexual Abuse by Priests

The toxic impact of clergy sexual abuse in childhood and adolescence can be complex and enduring. For some, a particularly painful consequence is noteworthy change in one’s personal identity or sense of self. Survivors frequently experience unrelenting grief over the loss of the “self” that was experienced as “real” prior to the onset of abuse. Memories of days and times when this self was “alive” are often accompanied by strong feelings of affection and joy. Despair over the loss of this identity contrasts sharply with the indifference or hostility felt for the self with which they have been burdened as a consequence of sexual abuse by clergy in childhood. Many struggle with the unbearable conviction that they are fated to live “in the skin” of an identity that is not an authentic expression of the person they were meant to be. This article suggests that the writings of Thomas Merton (1915–1968) may offer a hopeful resource for survivors of clergy sexual abuse and for those working in support of survivors’ recovery. Merton has been described as “the most influential Catholic author of the twentieth century” ). His writings touch the “deeper woundedness of spirit and psyche” (Kilcourse, Cross Curr, 49:87–96, 1999, p. 90) and his elegant examination of the true self lies “at the center of his teaching on the Christian life” (Conn, Pastor Psychol, 46:323–332, 1998, p. 327). For Merton, the true self is indestructible and, because it is “rooted in God” (Merton, The inner experience: Notes on contemplation, Harper Collins, New York, 2003, p. 2), always open to discovery, growth, and transformation. This framework may be especially useful for individuals whose personal identity, as a consequence of sexual abuse in childhood by clergy, is experienced as forever poisoned and beyond redemption.     

Does feigning amnesia impair subsequent recall?

Defendants who are accused of serious crimes sometimes feign amnesia to evade criminal responsibility. Previous research has suggested that feigning amnesia might impair subsequent recall. In two experiments, participants read and heard a story about a central character, described as “you,” who was responsible for the death of either a puppy (Experiment 1) or a friend (Experiment 2). On free and cued recall tests immediately after the story, participants who had feigned amnesia recalled less than did participants who had recalled accurately. One week later, when all participants recalled accurately, participants who had previously feigned amnesia still performed worse than did participants who had recalled accurately both times. However, the participants who had formerly feigned amnesia did not perform worse than did a control group who had received only the delayed recall tests. Our results suggest that a “feigned amnesia effect” may reflect nothing more than differential practice at recall. Feigning amnesia for a crime need not impair memory for that crime when a person later seeks to remember accurately.     

Effects of musicality and motivational orientation on auditory category learning: A test of a regulatory-fit hypothesis

Two experiments investigated the effects of musicality and motivational orientation on auditory category learning. In both experiments, participants learned to classify tone stimuli that varied in frequency and duration according to an initially unknown disjunctive rule; feedback involved gaining points for correct responses (a gains reward structure) or losing points for incorrect responses (a losses reward structure). For Experiment 1, participants were told at the start that musicians typically outperform nonmusicians on the task, and then they were asked to identify themselves as either a “musician” or a “nonmusician.” For Experiment 2, participants were given either a promotion focus prime (a performance-based opportunity to gain entry into a raffle) or a prevention focus prime (a performance-based criterion that needed to be maintained to avoid losing an entry into a raffle) at the start of the experiment. Consistent with a regulatory-fit hypothesis, self-identified musicians and promotion-primed participants given a gains reward structure made more correct tone classifications and were more likely to discover the optimal disjunctive rule than were musicians and promotion-primed participants experiencing losses. Reward structure (gains vs. losses) had inconsistent effects on the performance of nonmusicians, and a weaker regulatory-fit effect was found for the prevention focus prime. Overall, the findings from this study demonstrate a regulatory-fit effect in the domain of auditory category learning and show that motivational orientation may contribute to musician performance advantages in auditory perception.     

The Purpose and Neurobiology of Theory of Mind Functions

Theory of Mind (ToM) refers to a cognitive process which allows an individual to “place him/herself” in the other person’s “mind,” so as to comprehend the latter’s cognitive and emotional status, so as to predict his/her behavior and emotional response to a particular situation. ToM is necessary for everyday interaction among individuals and accounts for such human traits as empathy, compassion, and deceit. It is also particularly important in the relationship between a healer and his or her client, as well as in the God–human relationship. Recent research in the area of neurosciences has identified a specific brain “system” responsible for ToM, as well as described how these functions may be affected in certain neuropsychiatric conditions. In this article, we discuss the definition and neurobiological substrate of ToM. In addition, we discuss the cognitive steps important to achieve an “accurate” theory of mind, its relevance to “self-knowledge,” and its limitations. We also review some of the data concerning abnormalities and “distortion” of ToM in neuropsychiatric disorders and aberrant human behavior.