Hemispheric asymmetry,early visual processes,and serial memory comparison

Observers indicated whether a single probe letter presented to the left visual field/right hemisphere (LVF-RH) or to the right visual field/left hemisphere (RVF-LH) matched one of two, three, four, or five set letters in both name and case. For positive trials during the initial experimental session, the slope of the linear memory set size reaction time function was increased by perceptually degrading the probe letter on LVF-RH trials, but not on RVF-LH trials. In addition, perceptual degradation of the probe letter increased the intercept of the memory set size function more on RVF-LH trials than on LVF-RH trials. During subsequent experimental sessions, the same pattern of intercept results was obtained but perceptual degradation of the probe no longer changed the slope for either LVF-RH or RVF-LH trials. However, the slopes were uniformly lower on RVF-LH trials than on LVF-RH trials. The major results are consistent with hypothesized right-hemisphere efficiency for early processing stages and left-hemisphere efficiency for serial processing of alphanumeric information. The results further illustrate the importance of separating stages of processing in studies of cerebral laterality and indicate that the relative difficulty of the various stages can be a determinant of laterality results.     

"KEEPING THE HEART": NATURAL AFFECTION IN JOSEPH BUTLER'S APPROACH TO VIRTUE

This essay considers eighteenth-century Anglican thinker Joseph Butler's view of the role of natural emotions in moral reasoning and action. Emotions such as compassion and resentment are shown to play a positive role in the moral life by motivating action and by directing agents toward certain good objects—for example, relief of misery and justice. For Butler, moral virtue is present when these natural affections are kept in proper proportion by the "superior" principles of the moral life—conscience, self-love, and benevolence—which involve the capacity for reasonable reflection. For contemporary thinkers, Butler's approach suggests that natural emotion should not be viewed as the enemy of moral reasoning; in fact, it challenges ethicists to pay attention to and account for the significant role of the emotions in the moral life.     

LOOKING TO CHARLES TAYLOR AND JOSEPH ROUSE FOR BEST PRACTICES IN SCIENCE AND RELIGION

People discussing science and religion usually frame their conversations in terms of essentialist assumptions about science, assumptions requiring the existence (but not the specification) of criteria according to which science can be distinguished from other forms of inquiry. However, criteria functioning at a level of generality appropriate to such discussions may not exist at all. Essentialist assumptions may be avoided if science is understood within a broader context of human practices. In a philosophy of practices, to label a practice as “scientific” is to make a practically motivated provision for a way of speaking. Charles Taylor and Joseph Rouse have produced complementary philosophies of practice that promote this kind of understanding. In this essay I review the work of Taylor and Rouse, identify apparent residues of essentialism that each seems to harbor, and offer a resolution to some of their disagreements. I also criticize a form of essentialism commonly employed in Christian circles and outline an anti‐essentialist view of science that may be helpful in science‐and‐religion discussions.