Synesthesia: II. Psychophysical relations in the synesthesia of geometrically shaped taste and colored hearing

The psychophysical function in two synesthetic subjects, one with geometrically shaped taste and the other with colored hearing, is investigated. Each synesthete is compared with three control subjects. Pilot studies are used to construct appropriate response domains. Compared to controls, synesthetes give a restricted set of responses that are also asymmetric with respect to the range of choices available in various subsets of the response domain. A combination of absolute and relative effects is also distinctive of synesthetic percepts. It is concluded that synesthesia is a distinct phenomenon unlike ordinary mediated associations, and occupies an intermediate position in the range of simple to complex brain mechanisms.     

AXIOLOGY, SELF-DECEPTION, AND MORAL WRONGDOING IN BLAISE PASCAL'S PENSÉES

Blaise Pascal is highly regarded as a religious moralist, but he has rarely been given his due as an ethical theorist. The goal of this article is to assemble Pascal's scattered thoughts on moral judgment and moral wrongdoing into an explicit, coherent account that can serve as the basis for further scholarly reflection on his ethics. On my reading, Pascal affirms an axiological, social-intuitionist account of moral judgment and moral wrongdoing. He argues that a moral judgment is an immediate, intuitive perception of moral value that we willfully disregard in favor of the attractive, though self-deceptive, deliverances of our socially constructed imaginations. We can deceive ourselves so easily because our capacity to evaluate goods is broken, a dark legacy of the fall. In the article's concluding section, I briefly compare Pascal to contemporary ethicists and suggest directions for future research.     

Combining Action Observation and Motor Imagery Improves Eye–Hand Coordination during Novel Visuomotor Task Performance

Abstract

In this study, we compared the effectiveness of concurrent action observation and motor imagery (AO?+?MI), observing with the intent to imitate (active observation; AO), and passive observation (PO) training interventions for improving eye–hand coordination. Fifty participants were assigned to five groups [AO?+?MI, AO, PO, physical practice (PP); control] and performed a visuomotor rotation task, whilst eye movements were recorded. Each participant then performed 20 task trials in a training intervention before repeating the visuomotor rotation task in a post-test. As expected, PP produced the greatest improvement in task performance and eye–hand coordination. However, in comparison to the control group, AO?+?MI training produced a statistically significant increase in both task performance and eye–hand coordination, but no such improvements were found following AO or PO.     

Rapidly developed scalar timing in unsignalled shuttlebox avoidance learning

Three groups of rats were given brief inescapable shocks in a shuttlebox with equal shock-shock (S-S) and response-shock (R-S) intervals of 10, 15 or 20 s. Non shock-elicited responses (experimentally defined) postponed the occurrence of the next shock while shock elicited responses had no programmed consequences. Avoidance behaviour was rapidly acquired with all groups avoiding 85% or more of scheduled shocks by the end of the fifth 1 h session. Interresponse times revealed the development of excellent temporal discriminations in all groups. The data provide quantitative support for Gibbon's (1971) scalar timing hypothesis.