Physical Oracles: The Turing Machine and the Wheatstone Bridge

Earlier, we have studied computations possible by physical systems and by algorithms combined with physical systems. In particular, we have analysed the idea of using an experiment as an oracle to an abstract computational device, such as the Turing machine. The theory of composite machines of this kind can be used to understand (a) a Turing machine receiving extra computational power from a physical process, or (b) an experimenter modelled as a Turing machine performing a test of a known physical theory T. Our earlier work was based upon experiments in Newtonian mechanics. Here we extend the scope of the theory of experimental oracles beyond Newtonian mechanics to electrical theory. First, we specify an experiment that measures resistance using a Wheatstone bridge and start to classify the computational power of this experimental oracle using non-uniform complexity classes. Secondly, we show that modelling an experimenter and experimental procedure algorithmically imposes a limit on our ability to measure resistance by the Wheatstone bridge. The connection between the algorithm and physical test is mediated by a protocol controlling each query, especially the physical time taken by the experimenter. In our studies we find that physical experiments have an exponential time protocol; this we formulate as a general conjecture. Our theory proposes that measurability in Physics is subject to laws which are co-lateral effects of the limits of computability and computational complexity.     

Recognition memory and awareness: A high-frequency advantage in the accuracy of knowing

The well-established advantage of low-frequency words over high-frequency words in recognition memory has been found to occur in remembering and not knowing. Two experiments employed remember and know judgements, and divided attention to investigate the possibility of an effect of word frequency on know responses given appropriate study conditions. With undivided attention at study, the usual low-frequency advantage in the accuracy of remember responses, but no effect on know responses, was obtained. Under a demanding divided attention task at encoding, a high-frequency advantage in the accuracy of know responses was obtained. The results are discussed in relation to theories of knowing, particularly those incorporating perceptual and conceptual fluency.     

Problem Solving Style and Beliefs about Teaching,Learning, and Problem Solving

Seventy-four pre-service teachers in an urban graduate school of education were administered VIEW: An Assessment of Problem Solving Style and a questionnaire in which they were asked to rate the importance of numerous principles of learning, teaching, and problem solving. Judges had previously classified these principles according to the six different VIEW problem solving styles (Explorer, Developer, External, Internal, Person-oriented, Task-oriented). Participants categorized by a particular style rated more highly those principles that matched their style. Implications for instruction and the development of problem solving skills are discussed.     

The Theory and Practice of Psychiatry by Frederick C. Redlich and Daniel X. Freedman

Abstract

The noted humorist Dave Barry, in looking back over his life and thinking of things he had learned, said one of the things he learned was that “There is a very fine line between ‘hobby’ and ‘mental illness’” (1998, p. 182).

Following in Dave Barry’s path, I would like to look back over the 45+ years I’ve been practicing group therapy and see if there is anything to be learned by what I have learned over those years.     

Annual Review of Psychology,Vol. 12 Edited by P. R. Farnsworth

This article describes a group developed to address the parenting needs of women dealing with child sexual abuse and substance abuse. A solution focused 12-week group intervention is described, and the results of an evaluation are presented. Participants included 29 women who attended seven parenting groups. The results suggest that the group was perceived as beneficial by the women, who reported an increase in self-esteem, parenting satisfaction, and parenting self-esteem and an improvement in their attitudes toward their children.     

A Szondi Study of Developmental and Cultural Factors in Personality: The Seven-Year-Old

Children's concepts of various social roles were examined in a task that required the child to indicate the similarity of two occupants of common social roles. Each occupant in the pair was described differently in terms of behaviors appropriate for a particular role. Children in the first, third, and sixth grades were studied. Findings indicated that children in the youngest group held role concepts based primarily on concrete actions, while role concepts of the older two groups were based on more abstract, general role functions. In addition, there is some suggestion that the level of role conceptualization is related to the relevance of the particular role.     

Learning Under Conditions of Action Information Feedback

Methodological and empirical issues in research on action information feedback (AIF) are discussed, with particular reference to the procedures and results of Annett (1970). Positioning responses practiced under conditions of AIF training are learned, though generally less well than under terminal IF conditions. Effects obtained as a result of AIF training may be subject to variations in movement extent required, gain and other transformations, frequency, temporal locus, and mode of augmentation, many aspects of which remain to be systematically studied.     

Hostility on the TAT as a Function of Defensive Inhibition and Stimulus Situation

It was hypothesized that there would be significant differences in the aggressive imagery of inhibited and uninhibited subjects when TAT cards or instructions strongly suggested an aggressive response but not when the experimental conditions did not suggest hostile themes. This prediction was verified on a sample of women but no support was found in a sample of men. The findings were related to other studies in the literature and directions for further research suggested.