Range of acceptable stimulus intensities: An estimator of dynamic range for intensive perceptual continua

The dynamic range (DR) of a sensory system is the span (usually given in log units) from the lowest to highest intensities over which a continuously graded response is evoked, and may be a distinctive feature of each such system. Teghtsoonian (1971) proposed that, although DR varies widely over sensory systems, itssubjective size (SDR) is invariant. Assuming the psychophysical power law, the exponent for any continuum is given by the ratio of subjective span to DR, both quantities expressed logarithmically. Thus, exponents are inversely related to DR and may be interpreted as indexes of it. Because DR can be difficult or even dangerous to measure directly, we sought to define a smaller range representing some fixed proportion of DR that could be used in its place to test the hypothesis of an invariant subjective range. Observers manipulated the intensities of five target continua to produce the broadest range they found acceptable and reasonably comfortable, a range of acceptable stimulus intensities (RASIN). Combined with an assumed constant SDR (derived from previous research), RASINs accurately predicted exponents obtained by magnitude production from the same observers on the five continua, as well as exponents reported in the literature.     

Moral Expertise?: Constitutional Narratives and Philosophical Argument

Using the bench trial of Colorado's Amendment 2 as an example, this article focuses on the more general question of expert testimony in moral philosophy. It argues that there is indeed expertise in moral philosophy but argues against admitting such expert testimony in cases dealing with what John Rawls terms "constitutional essentials" and 'matters of basic justice." Developing the idea of public reason inherent in the Rawlsian concept of political liberalism, the article argues that philosophers can and should speak out on public issues, if they do so with due respect for certain restrictions, but that they should not serve as expert witnesses on core constitutional questions, since doing so suggests that they claim a type of authority that would require fellow citizens to defer to their views. Such claims to authority in basic ethical matters threaten the mutual respect for divergent comprehensive doctrines that lies at the core of political liberalism. Philosophers have a duty to serve the public good, and they perform this service in fruitful ways. But they should refuse a public role that appears incompatible with equal respect for the committed ethical searching of their fellow citizens.     

Education for Citizenship in an Era of Global Connection

Higher education makes an importantcontribution to citizenship. In the UnitedStates, the required portion of the ``liberalarts education' in colleges and universitiescan be reformed so as to equip students for thechallenges of global citizenship. The paperadvocates focusing on three abilities: theSocratic ability to critize one's owntraditions and to carry on an argument on termsof mutual respect for reason; (2) the abilityto think as a citizen of the whole world, notjust some local region or group; and (3) the``narrative imagination,' the ability to imaginewhat it would be like to be in the position ofsomeone very different from oneself. The paperdiscusses the role of the ``liberal arts'curriculum in U.S. education and asks howEuropean universities, with their differentstructure, might promote these three abilities.     

Spirituality Among Older African Americans

Recent changes in gerontology have drawn attention to the role of spirituality among older adults. Demographic trends suggest that the number of African Americans over the age of 65 is increasing, with the largest shift to occur in persons 85 years of age and older. Given the paucity of information available regarding the relationship between spirituality and aging along with the increase in the number of older African Americans, a literature review of these concepts is sorely needed. This paper provides a thorough profile of older African Americans, with a review of historical and cultural factors that have informed the spiritual development of this population. Additionally, attention is given to methodological issues such as definitions, measures, sampling, and research designs at the interface of development and spirituality in this population. The paper also reviews findings to date about the effects of spirituality on physical and mental health among older African Americans.     

Eroticism for the masses: Japanese manga comiss and their assimilation into the U.S.

In this article, we describe translated Japanese comics or “manga” with sexual content. Because in the West comics have been treated as junk culture, they lack canons for critical analysis. We have developed methods for analyzing manga that focus on objective assessment of content, on reader subjectivity, and on how the emotional tenor of the artwork is created. We briefly review some history of Japanese art and culture, in which sexuality has always been a legitimate subject for art and which forms the cultural underpinnings of manga. We summarize the erotic themes and visions of manga with sexual content, including heterosexual courtship and consummation, female and male homosexuality, sadomasochism, transvestitism, incest, and bestiality. Critics of manga argue that it glorifies rape, a view we could not confirm. We identified 87 stories with rape or sexual assault; 80 (92.0%) show the woman or others taking violent, often murderous, revenge on sexual attackers. We also analyze visual modalities for depicting men and women. In common with older Japanese aesthetic traditions, the manga we have seen depict women as beautiful, powerful, and erotic. Finally, we suggest that manga functions as an art form by mobilizing the reader’s involvement with the characters, especially female characters, in a complex narrative framework in which sexuality is a positive virtue for men and, especially, for women. We conclude that manage contains some of the finest erotic art being produced in the world today for sheer power, elegance, and drama. Some of this material was presented at the Western Regional Meeting of the Society for the Scientific Study of Sexuality, San Diego, CA, April 6–9, 2000.     

Risk and resiliency processes in ethnically diverse families in poverty.

Families living in poverty face numerous stressors that threaten the health and well-being of family members. This study examined the relationships among family-level poverty-related stress (PRS), individual-level coping with PRS, and a wide range of psychological symptoms in an ethnically diverse sample of 98 families (300 family members) living at or below 150% of the federal poverty line. Hierarchical linear model (HLM) analyses revealed that family PRS is robustly related to a wide range of psychological syndromes for family members of both genders, all ages, and all ethnic backgrounds. In addition, primary and secondary control coping were both found to serve as buffers of PRS for many syndromes. For several psychological syndromes, parents showed significantly higher levels of symptoms, but the link between PRS and symptoms was significantly stronger for children than for adults. Ethnicity was not a significant predictor in overall HLM models or follow-up analyses, suggesting that the broad construct of PRS and the theoretical model tested here apply across the 3 major ethnic groups included in this study. The findings suggest that family-based, coping-focused interventions have the potential to promote resiliency and break linkages in the pernicious cycle of family economic stress.     

Left-right differences on timed motor examination in children.

Age-related change in the difference between left- and right-side speed on motor examination may be an important indicator of maturation. Cortical maturation and myelination of the corpus callosum are considered to be related to increased bilateral skill and speed on timed motor tasks. We compared left minus right foot, hand, and finger speed differences using the Revised Physical and Neurological Assessment for Subtle Signs (PANESS; Denckla, 1985); examining 130 typically developing right-handed children (65 boys, 65 girls) ages 7-14. Timed tasks included right and left sets of 20 toe taps, 10 toe-heel alternation sequences, 20 hand pats, 10 hand pronate-supinate sets, 20 finger taps, and 5 sequences of each finger-to-thumb apposition. For each individual, six difference scores between left- and right-sided speeded performances of timed motor tasks were analyzed. Left-right differences decreased significantly with age on toe tapping, heel-toe alternations, hand pronation-supination, finger repetition, and finger sequencing. There were significant gender effects for heel-toe sequences (boys showing a greater left-right difference than girls), and a significant interaction between age and gender for hand pronation-supination, such that the magnitude of the left-right difference was similar for younger, compared with older girls, while the difference was significantly larger for younger, compared to older boys. Speed of performing right and left timed motor tasks equalizes with development; for some tasks, the equalization occurs earlier in girls than in boys.     

Cognitive Deficits in the Early Stages of Alzheimer's Disease

ABSTRACT— Evidence from longitudinal, experimental, and neuroimaging studies converge to indicate that psychological functions other than episodic memory are affected very early in the course of Alzheimer's disease and, indeed, may predate or influence the apparent memory deficits. Changes in personality and difficulty in executive function, especially in terms of attentional and inhibitory control, are especially prominent. Deficits in other types of memory (i.e., semantic memory, conditioning) can also be detected in the early stages of the disease. It is time to update existing diagnostic criteria for this form of dementia in terms of current knowledge of multiple and interacting brain systems.