A model of transitive choice

We report a formal model of transitive inference based on protocols from experiments on squirrel monkeys solving the 5-term series problem (McGonigle & Chalmers, 1977, 1992). These studies generate databases featuring transitive choice, task transfer (where at first a significant decrement is observed, and later substantial improvement without explicit training), and, finally, a Symbolic Distance Effect (SDE) based on decision-time data. Using a rule-based (production) system, we first established rule stacks at the group, then at the individual level, on the basis of triadic transfer performance first recorded in the McGonigle and Chalmers (1977) study. The models for each subject then accommodated data from the more intensive, later study with the same subjects (McGonigle & Chalmers, 1992). We found the initial model capable of dealing with all choice and reaction-time phenomena reported thus far, with only small changes in a rule search procedure. In common with an independent assay by McGonigle and Chalmers (1992), our model-based reassessment of decision times indicates that a major source of reaction time variation is item prominence in the rule stack rather than interitem (ordinal) distance per se.     

Historical inferences from ethnohistorical data: Boasian views

Just before Boasian anthropologists turned from trying to reconstruct North American prehistory to synchronic work on social organization and on the psychological integration of intact cultures, they considered the validity of traditional/folk accounts. Robert Lowie, editor of the official journal of the American Anthropological Association, categorically rejected any use of such data, twisting the carefully delimited claims made for them by the anthropologists engaged in disentangling American ethnic groupings, who were unwilling to throw out all data except those provided by professionally trained (that is, Boasian) anthropologists. Rather than the “refutation” (in the Popperian sense) this episode has been taken to represent, it exemplifies a problematic along with the appropriate methods for the problematic being dropped as other problematics and methods become fashionable.     

Maternal styles in infant psychotherapy: Treatment and research implications

Infant psychotherapy, in which the mother is requested to follow the baby's activities without initiating or directing, is described. Mothers demonstrate different styles of involvement with their infants: a protective mode, a prohibitive mode, a competitive mode, and other ways of interfering with their infants' tendency to explore the environment. Attempts to analyze such factors as position, distance and movement are discussed. Research for recording and analyzing the movement of infant and mother dyads is proposed.     

Towards a structural concept of agonism

The model presented attempts to describe the agonistic situation from the point of view of the individual, taking psychological, ecological, and ethological factors that can influence behavioral expression into account. The animal is considered as consisting of an “ego” and “soma,” these being conceptualized as concentric circles surrounding the gene carrier itself. The hierarchy of responses present to protect the gene carrier together with their motivatory causal factors and their energy expenditures are described and agonism considered as a means by which optimal inclusive fitness can be attained.