Subjective utility,anticipated utility,and the Allais paradox

One of the most notable counterexamples to expected utility theory is the “Allais paradox” (M. Allais, 1953, Econometrica, 31, 503–546). A number of alternative theories have been proposed in an attempt to resolve this paradox, notably including Karmarkar, 1978, Karmarkar, 1979, 24, 67–72). It is shown that SWU theory necessarily involves violations of dominance, but that the theory can be modified to avoid these violations. The result is a special case of J. Quiggin's anticipated utility theory (1982, Journal of Economic Behaviour and Organisation, 3, 323–343).     

Similarity of attitudes and constructs in children's friendships

Sex prejudice in children's friendships has frequently been noted. This study examined the role of similarity of attitudes and personal construct ratings in this effect. Subjects were two classes of school children, aged 7–8 and 9–10 years. There were 29 children in each class. Subjects completed an attitude scale, construct rating scale, and sociometric questionnaire. Similarity effects were primarily in the younger children. Boys were more similar to each other in attitudes than were girls, and girls were more similar to each other in construct ratings than were boys (p < .001); there was greater similarity of attitudes and construct ratings in friendship rather than nonfriendship comparison dyads (p < .01). The sociometric data, when compared with sociometric data collected 6 months earlier, showed that these results could not be due to sex differences in the stability of friendships but rather suggested age and sex differences in the informational bases of friendships in middle childhood.     

The Motherhood of the Church in Henri de Lubac and John Calvin

Both Henri de Lubac and John Calvin described the Church as ‘mother’. From the patristic tradition, the motherhood of the Church had two dimensions: (i) the Mother Church as an institution delimited by the episcopacy of which inclusion was a necessity for salvation; and (ii) the Church as the mother of believers through whose ‘motherly’ care of bringing to life, nourishing and teaching through the sacraments God makes provision for his children. Both de Lubac and Calvin stress the maternal functions of the Church, but differ over how the Church’s motherhood relates to its visible identity and why inclusion in the Church is necessary for salvation. This article argues that this connection represents a rich theme for ecumenical ecclesiology. Despite divergent ecclesiological grammars and themes, Catholic and Reformed traditions are drawing from a shared patristic inheritance which gives good ground for dialogue for respective ecclesial self-understandings.     

Successful aging: Social theory,scripture, church teaching

ABSTRACT

Thanks to medical progress and better overall living conditions, a greater number of people are living well into old age, many more than in previous generations. However, we feel instinctively that there must be more to life than longevity and merely living longer. Religious communities and social scientists are both interested in what makes for “successful aging.” The dialogue between them can be enriched by fostering a mutual appreciation for biblical norms and stories, and a better working knowledge of the models and methods of the social sciences. To that end, I offer a sketch of four models of aging: disengagement, activity, continuity, and Tornstam’s theory of gerotranscendence. This sketch serves as a prelude to a discussion of three biblical stories: (1) the story of Barzillai and King David in 2 Samuel, which shows how the elderly can make a positive contribution to the common good, in spite of their limitations; (2) the intertwined stories of Jacob and Joseph in Genesis, which can help us understand the theological significance of life review, forgiveness, reconciliation, and life review in the aging process; and (3) the third phase of the encounter considers John Paul II’s Letter to the Elderly, and builds on several suggestions he makes concerning the life of Moses and successful aging.     

The Limits of Reproductive Decisions

In this article I will address the question of determining the moral limits of reproductive decisions. In so doing I will examine the contributions made by John Harris, who has over the years consistently addressed the ethical implications of advancing reproductive technologies. In addressing these matters, Harris has centred his arguments on the principle of harm and with this in mind has set out a specific theoretical framework from which decisions about disability and causing harm, as in the case of reproductive decisions, can be rationally addressed. This discussion will attempt to question the conceptual scheme that he proposes. The aim here is not to present an alternative theoretical contribution to the morality of reproductive choice. Rather, in the attempt to follow some of the directives in Wittgenstein’s later philosophy, the aim is to demonstrate some of the pitfalls of what Wittgenstein has described as the “craving for generality” in contemporary philosophy. I propose that this craving can distort, in this instance, our ordinary usage of concepts such as harm, suffering and disability and their role in the moral vocabulary of reproductive decision making     

Stimulus-reinforcer and response-reinforcer relations in the control of conditioned appetitive headpoking (“goal tracking”) in rats

Experiment 1 studied the effect of several Pavlovian appetitive conditioning procedures on rats' headpoking into a food tray (goal tracking). The procedures included forward delay conditioning, CS-alone extinction, differential conditioning, and simultaneous compound conditioned inhibition training. In general, the headpoke behaved in all of these treatments much like a Pavlovian CR; however, one could also say that the headpoke behaved like an adventitiously reinforced operant for which the CS was an S^D. Experiment 2, therefore, used the differential-nondifferential technique (E. Gamzu & D. R. Williams, Science, 1971, 171, 923–925), and Experiment 3 used an omission technique (F. D. Sheffield, in W. F. Prokasy, Ed., Classical conditioning, New York: Appleton-Century-Crofts, 1965; D. R. Williams & H. Williams, Journal of the Experimental Analysis of Behavior, 1969, 12, 511–520), to try to separate the role of stimulus-reinforcer and response-reinforcer relations in controlling the headpoke. These techniques proved inadequate. The results of Experiment 2 could be given either operant or Pavlovian interpretations. Those of Experiment 3 showed that headpoking is dominated by response-reinforcer, rather than by stimulus-reinforcer, relations when the two compete but forced no conclusion about which dominates when the two act together as in acquisition. Implications for pigeon autoshaping are discussed.     

Effect of thought-stopping on thoughts,mood and corrugator EMG in depressed patients

The immediate effects of thought-stopping applied to depressive thoughts were compared to those of a control procedure in a group of depressed psychiatric day-patients. Thought-stopping had only a weak effect on average in reducing the frequency of depressive thoughts, and no significant effects on depressed mood or corrugator EMG. A small significant effect on anxious mood appeared related to non-specific factors. The results raise the possibility that thought-stopping may have little specific effect in reducing the frequency of unwanted thoughts. Corrugator EMG was significantly related to the frequency of spontaneously occurring depressive thoughts both between and within subjects.     

Interference in memory for pictorial information

Subjects studied either faces composed from visual features or verbal facts composed from concepts. Recognition times were increased for both faces and facts when they were composed of elements that occurred in multiple study items. In Experiment 1 the interfering effect of other study items was much larger for verbal facts than for faces. This difference was largely eliminated in Experiment 2 where care was taken to control the features by which the faces were encoded. Experiment 2 also showed that verbal information could interfere with pictorial information and vice versa. However, this cross-modality interference was much weaker than within-modality interference. The data are consistent with the ACT theory in which pictorial material and verbal material are stored together in an abstract propositional network. The subnode model (Anderson, Language, memory, and thought, Hillsdale, N. J.: Lawrence Erlbaum, 1976) can account for the greater within- than cross-modality interference.     

Logical competence and transitive inference in young children

Five-year-old children were trained on the length relationships between the adjacent members of a five-term series of sticks. They were then tested on their abilities (1) to judge the length relationships between nonadjacent pairs of the series, and (2) to incorporate an unseen novel stick into the series through inference. Children who were trained with sticks of markedly different lengths succeeded on the first test but not the second; they apparently relied on memory for the absolute lengths of the sticks. Children in the other groups succeeded on both tests. The critical factor in inducing the use of seriation and transitivity seemed to be the elimination of alternative solutions.