A LISP program to determine similarity relations in letter displays

Similarity relations between letters are important in displays used in tacbistoscopic recognition experiments. A LISP program is described that calculates similarity relations on the basis of an empirical letter-similarity matrix or on the basis of feature sharing in a feature-set definition supplied by the user. With either derivation method, there are three options for the type of average to be calculated for target display: (1) the average for the whole target, (2) the average for each letter in the target paired to all other letters in the target, and (3) the average of each letter in the target paired with its immediate neighbors.     

Lexical and grammatical processing of unshadowed messages: A re-examination of the Mackay effect

Mackay (1973) claimed to have provided evidence that subjects could process the grammatical structure and lexical content of nonshadowed messages. In the present study, it was found impossible to repeat Mackay's findings when controls for several factors that had been ignored in Mackay's study were employed. Subsequent experiments indicated that two major factors contributing to Mackay's results were that he had a gap between sentences in his experiment and that the nonshadowed material came out of a background of silence. Both of these probably enabled subjects to switch attention to the nonshadowed material without disruption of shadowing performance.     

Book reviews

The Continuity of Madhyamaka and Yogācāra in Indian Mahāyāna Buddhism. IAN HARRIS, 1991. Leiden, E. J. Brill. 191 pp., hb £42.85

Twin Peaks: Compassion and Insight. PADMASIRI de SILVA, 1991. Singapore, Buddhist Research Society. p., 170.

Neoplatonism and Islamic Thought Studies in Neoplatonism: Ancient and Modem, Vol. 5. Edited by PARVIZ MOREWEDGE, 1992. Albany, NY, State University of New York Press. 267 pp., pb £16.00     

Introducing an existential-phenomenological approach: Basic phenomenological theory and research–Part I

What is often referred to as the existential approach to counselling and psychotherapy may be defined as the application of existential-phenomenological philosophy towards psychotherapeutic ends, in which individual practitioners choose how to apply their readings of the leading authors. The first of this two-part exposition introduces a form of ‘experiential’ philosophy called phenomenology, a regular experiential method that is in many ways antithetical to the conventional scientific approach. This first paper concentrates on one of the many successive definitions of phenomenology given by Husserl, the philosopher of science, in 1927, with help from his ex-student Heidegger. In the second paper, phenomenology is brought to bear on human experience, and it is Heidegger in Being and Time who added it to the writings of the earlier existentialists Kierkegaard and Nietzsche; to produce existential psychology and philosophy. Also in the second part, three forms of existential therapy are briefly mentioned. This first paper introduces a handful of key ideas for counselling psychologists, and illustrates how philosophical work is an inherent part of life, as well as the production and use of psychological knowledge.     

BALANCING THE GENERAL WITH THE PARTICULAR IN PSYCHOANALYSIS

The American Journal of Psychoanalysis -     

One Life Heals Another: Beginnings,Maturity, Outcomes of a Vocation,by Franco Borgogno, (A. Elgar,trans.), International Psychoanalytic Books,New York, 2021, 169 pp.

The American Journal of Psychoanalysis -     

The discrimination of graphical elements

A model is proposed to account for how people discriminate quantities shown in pie charts and divided bar graphs (i.e. which proportion is larger, A or B?). The incremental estimation model assumes that an observer sequentially samples from the available perceptual features in a graph. The relative effectiveness of sampled perceptual features is represented by the spread of probability distributions, in the manner of signal detection theory. The model's predictions were tested in two experiments. Participants took longer with pies than divided bars and longer with non‐aligned than aligned proportions in Experiment 1. In Experiment 2, participants took longer with divided bars than pies when graphs were of unequal size. Generally, graphical formats producing longer response times incurred a greater time penalty when the difference between proportions was reduced. These results were in accordance with the model's predictions. Implications for graphical display design are discussed. Copyright © 2001 John Wiley & Sons, Ltd.     

Manipulations of irrelevant information: Suffix effects with articulatory suppression and irrelevant speech

Numerous studies have demonstrated impaired recall when the to-be-remembered information is accompanied or followed by irrelevant information. However, no current theory of immediate memory explains all three common methods of manipulating irrelevant information: requiring concurrent articulation, presenting irrelevant speech, and adding a stimulus suffix. Five experiments combined these manipulations to determine how they interact and which theoretical framework most accurately and completely accounts for the data. In Experiments 1 and 2, a list of auditory items was followed by an irrelevant speech sound (the suffix) while subjects engaged in articulatory suppression. Although articulatory suppression reduced overall recall compared to a control condition, comparable suffix effects were seen in both conditions. Experiments 3 and 4 found reliable suffix effects when list presentation was accompanied by irrelevant speech. Experiment 5 found a suffix effect even when the irrelevant speech was composed of a set of different items. Implications for working memory, pre-categorical acoustic store, the changing-state hypothesis, and the feature model are discussed.