Body and self in dolphins

In keeping with recent views of consciousness of self as represented in the body in action, empirical studies are reviewed that demonstrate a bottlenose dolphin's (Tursiops truncatus) conscious awareness of its own body and body parts, implying a representational "body image" system. Additional work reviewed demonstrates an advanced capability of dolphins for motor imitation of self-produced behaviors and of behaviors of others, including imitation of human actions, supporting hypotheses that dolphins have a sense of agency and ownership of their actions and may implicitly attribute those levels of self-awareness to others. Possibly, a mirror-neuron system, or its functional equivalent to that described in monkeys and humans, may mediate both self-awareness and awareness of others.     

Emotional stimuli exert parallel effects on attention and memory

Because emotional and neutral stimuli typically differ on non-emotional dimensions, it has been difficult to determine conclusively which factors underlie the ability of emotional stimuli to enhance immediate long-term memory. Here we induced arousal by varying participants' goals, a method that removes many potential confounds between emotional and non-emotional items. Hungry and sated participants encoded food and clothing images under divided attention conditions. Sated participants attended to and recalled food and clothing images equivalently. Hungry participants performed worse on the concurrent tone-discrimination task when they viewed food relative to clothing images, suggesting enhanced attention to food images, and they recalled more food than clothing images. A follow-up regression analysis of the factors predicting memory for individual pictures revealed that food images had parallel effects on attention and memory in hungry participants, so that enhanced attention to food images did not predict their enhanced memory. We suggest that immediate long-term memory for food is enhanced in the hungry state because hunger leads to more distinctive processing of food images rendering them more accessible during retrieval.     

The Effects of Aging and Dual Task Demands on Language Production

ABSTRACT

A digital pursuit rotor task was used to measure dual task costs of language production by young and older adults. After training on the pursuit rotor, participants were asked to track the moving target while providing a language sample. When simultaneously engaged, young adults experienced greater dual task costs to tracking, fluency, and grammatical complexity than older adults. Older adults were able to preserve their tracking performance by speaking more slowly. Individual differences in working memory, processing speed, and Stroop interference affected vulnerability to dual task costs. These results demonstrate the utility of using a digital pursuit rotor to study the effects of aging and dual task demands on language production and confirm prior findings that young and older adults use different strategies to accommodate to dual task demands.     

Martin Luther in The Netherlands

ABSTRACT

Martin Luther’s influence in the Netherlands has often been overlooked in favour of a focus on the theology of Calvin. However, several historical facts lead us to consider the importance of Luther for the Dutch and the abiding significance of his work. The article examines several of those historical phenomena including the fluid ecclesiastical situation in the Netherlands from the 1520s to 1546, the year of Luther’s death. It also considers the impact which the reception of Luther’s writings had on Dutch society, both directly and in interaction with other theological perspectives. This leads naturally to a consideration of the general importance of Luther’s writings for the Dutch and their church(es). And after a survey of the variations and mutations which Luther’s ideas underwent in the Dutch context, we conclude with a brief survey of Luther’s continuing reception in the Netherlands beyond the sixteenth century.     

Knowledge versus survival

Our biological survival is often taken as an argument in favour of the validity of our present conceptual scheme and cognitive frame of reference. A twofold counterargument is offered: (1) Given any notion of ‘knowledge’, ‘insight’, etc. within our present scheme, it is possible, even plausible, that such ‘knowledge’ and ‘insight’ be extended and perfected beyond what is beneficial to the survival of mankind; (2) The alleged link between survival and veridicality is not logical but contingent and tenuously tangential. Since the prevailing scheme may prove to serve ends not just other than, but opposed to survival, e.g. the end of unmasking the world and man's lot therein, survivalism may require a radical reconsideration of that scheme, including its prejudice in favour of survival. From the point of view of all current schemes or frames of reference, such a project appears inherently paradoxical.     

Ordinary language in memoriam

Taking as a point of departure a recently published collection of representative contributions from various philosophers who claim to ‘proceed from ordinary language’, this article examines ordinary language philosophy in the light of some of the claims made by these philosophers. The claims are criticized mainly for failing to account for the variability of the use of terms in respect both of depth of intention and special contexts. These factors are such as to render the claims in question false when interpreted as significant assertions about language, but trivial when they are interpreted as reasonable and true.