A Property Level Analysis of Lexical Semantic Representation in Alzheimer′s Disease

In order to assess the hypotheses that Alzheimer′s disease (AD) results in a property level restructuring, loss, or degradation of lexical-semantic knowledge, Alzheimer′s patients and normal elderly subjects were presented with a property verification task in which they were asked to judge the truth value of telegraphic statements which paired objects with their properties (e.g., "Apple is red"). Objects with either high- or low-typical exemplars of categories (e.g., "oak" is a high typical exemplar of the category "tree," while "palm" is a less typical item). Properties were varied with respect to normatively determined dominance (e.g, "fins" is a high dominant property of "trout," while "slimy" is a less dominant property) and whether they were distinctive (i.e., served to distinguish between subsets of exemplars within a category) or shared among most or all category members (e.g., "stem" for the category "fruit"). Analyses of accuracy and reaction time data suggested that AD results in neither a loss per se of representation of properties, nor a reorganization of relations between objects′ properties. However, results were consistent with a property level degradation of AD patients′ object concepts. While there was no evidence for a differential degradation of distinctive vs shared properties, results suggested that AD patients have degraded representations of lower dominant properties and properties of low-typical category exemplars.     

Using videotape modeling to facilitate generalized purchasing skills

Six students with moderate and severe disabilities were taught generalized purchasing skills through the use of videotape modeling in one, two, or three stores and in vivo instruction within one store. Training was conducted within three orders of treatments: (a) in vivo instruction followed by videotape training, (b) videotape training followed by in vivo instruction, and (c) concurrent videotape and in vivo instruction. Generalization probes were conducted in stores that were the same as those modeled on videotape, untrained stores that were infrequently probed (and never modeled on tape or taught directly), and novel stores that were probed only once after training. Results indicated the production of generalized purchasing skills by the students who received concurrent training and by the students who received sequential training. Videotape and in vivo training in isolation did not lead to generalized shopping skills. The results are discussed in terms of investigating the possible role of verbalization during videotape training on generalized responding and the effects of multiple probe interventions on inadvertent learning of critical skills.deceased.     

Nonabsolute/relativistic thinking: A common factor underlying models of postformal reasoning?

Strong empirical evidence was obtained in support of the proposition that nonabsolute/relativistic (N/R) thinking is a unifying commonality underlying four postformal models of higher-order thinking, namely, problem finding, dialectical reasoning, relativistic operations, and reflective judgment. Within the construct of N/R thinking, two dimensions—the basic form and the epistemic view—and two levels—the formal form and the postformal form—were differentiated as hypothesized. The findings clarify logical relationships among the models as well as provide a common link unifying their diversity. Implications and suggestions for future research are provided.     

Developing insight through supervision: relating, then defining

By the use of tape recordings, I attempt to understand the main ways in which a supervisor helps the supervisees to gain insights into their work with their patients. Through this research I became aware that insights come into being by way of a process involving unconscious identity and differentiation. I have use supervisory examples to illustrate the ways in which the supervisor interacts with the supervisee.     

An experimental study of interethnic competition in segregated schools

Decomposed matrix games were used to study interethnic competition in the triethnic school system of a southwestern city. The sample consisted of sixth-grade males from segragated schools. In addition to the data from the matrix games, brief questionnaire measures of internal vs. external locus of control, self-esteem, and authoritarianism were also obtained. The results on the game matrices indicated that the anglos competed more and were less trusting than the blacks or chicanos. The questionnaire results indicated that the blacks were highest on feelings of external control and on authoritarianism, while the chicanos were lowest in self-esteem. Cooperative interethnic work groups were suggested as a means of coping with the problems that these differences might be expected to cause in integrated schools.     

The interviewing computer: A technology for gathering comprehensive treatment information

The interviewing computer is a practical device for gathering comprehensive information on mental health patients. The complex decisions of a treatment science will require a large body of patient facts and an automated interviewing system to elicit such facts, covering the patient’s intake assessment, therapeutic progress, and follow-up stages of treatment. Evidence suggests that the computer interview may equal or excel the interview accomplishments of some clinicians who are unknowledgeable about asking certain clinical questions, forget to ask these questions, or fail to record crucial patient facts. The documentation of each patient’s treatment episode is essential for a treatment science, and the computer interview may represent a technology for achieving this information goal.