SOCIOBIOLOGY, ETHICS, AND THEOLOGY

Abstract. The topic of sociobiology and ethics opens up a range of questions that have to do with important relationships: between the history of nature and human being, between biological evolution and psychosocial evolution, between is and ought , between language usages in one domain and another. The task of ethics is properly to discern what sociobiology has to tell us about the fundamentals of life and persuasively to direct our actions in accord with those fundamentals, in a manner that is consistent with our essential humanity. From the theological perspective all of this transpires within the creative will of God.     

GOD AND CHAOS: THE DEMIURGE VERSUS THE UNGRUND

Abstract. The human quest for meaning is an attempt to bring experience into conjunction with illuminating concepts. The second law of thermodynamics is of wide human concern, because it touches experience which is existentially charged and therefore which humans must interpret in broad metaphysical terms. Five types of experience have been incorporated into the second law: running down, degeneracy, mixed-up-ness, irreversibility of time, and emergence of new possibilities. The dominant Western tradition (Plato) places these experiences within a metaphysical scheme that evaluates them negatively, whereas a minority tradition (Berdyaev) evaluates them positively. The former makes entropy anti-God; the latter places entropy within God.     

THEOLOGY'S TRUTH AND SCIENTIFIC FORMULATION

Abstract. One of the basic intentions of theology is to extend the explanatory function of the community's faith beyond the community to the realm of wider human experience. In this sense, theology may be called "scientific,'and it will benefit from conforming as much as possible to the characteristics of scientific theory formation. Using the work of Karl Popper and Imre Lakatos as a guide, the following theological theory is proposed: Homo sapiens is God's created co-creator, whose purpose is the stretching/enabling of the systems of nature so that they can participate in Gods purposes in the mode of freedom. It is argued that this research program produces new knowledge in relating the Christian faith to scientific views of human being as comprised of both genes and cultures to a theory of technological civilization; to freedom, determinism, and natural selection; and to credible notions of human purpose. Traditional Christian doctrines are related to this research program.     

Action-feature integration blinds to feature-overlapping perceptual events: Evidence from manual and vocal actions

Previous studies showed that the identification of a left- or right-pointing arrowhead is impaired when it appears while planning and executing a spatially compatible left or right keypress (Müsseler & Hommel, 1997a). We attribute this effect to stimulus processing and action control operating on the same feature codes so that, once a code is integrated in an action plan, it is less available for perceptual processing. In three pairs of experiments we tested the generality of this account by using stimulus–response combinations other than arrows and manual keypresses. Planning manual left–right keypressing actions impaired the identification of spatially corresponding arrows but not of words with congruent meaning. On the contrary, planning to say “left” or “right” impaired the identification of corresponding spatial words but not of congruent arrows. Thus, as the feature-integration approach suggests, stimulus identification is impaired only with overlap of perceptual or perceptually derived stimulus and response features while mere semantic congruence is insufficient.     

Regional accent variation in the shadowing task: Evidence for a loose perception–action coupling in speech

We investigated the relation between action and perception in speech processing, using the shadowing task, in which participants repeat words they hear. In support of a tight perception–action link, previous work has shown that phonetic details in the stimulus influence the shadowing response. On the other hand, latencies do not seem to suffer if stimulus and response differ in their articulatory properties. The present investigation tested how perception influences production when participants are confronted with regional variation. Results showed that participants often imitate a regional variation if it occurs in the stimulus set but tend to stick to their variant if the stimuli are consistent. Participants were forced or induced to correct by the experimental instructions. Articulatory stimulus–response differences do not lead to latency costs. These data indicate that speech perception does not necessarily recruit the production system.     

Gaze following: why (not) learn it?

We propose a computational model of the emergence of gaze following skills in infant-caregiver interactions. The model is based on the idea that infants learn that monitoring their caregiver's direction of gaze allows them to predict the locations of interesting objects or events in their environment (Moore & Corkum, 1994). Elaborating on this theory, we demonstrate that a specific Basic Set of structures and mechanisms is sufficient for gaze following to emerge. This Basic Set includes the infant's perceptual skills and preferences, habituation and reward-driven learning, and a structured social environment featuring a caregiver who tends to look at things the infant will find interesting. We review evidence that all elements of the Basic Set are established well before the relevant gaze following skills emerge. We evaluate the model in a series of simulations and show that it can account for typical development. We also demonstrate that plausible alterations of model parameters, motivated by findings on two different developmental disorders - autism and Williams syndrome - produce delays or deficits in the emergence of gaze following. The model makes a number of testable predictions. In addition, it opens a new perspective for theorizing about cross-species differences in gaze following.