Book reviews

The Tao and the Logos: Literary Hermeneutics, East and West. Zhang Longxi, 1992 Duke University Press xviii + 239 pp., ISBN 0 8223 1218 2, pb $14.50

Ibn Sinā and Mysticism: Remarks and Admonitions. Shams C. Inati, 1996, London, Kegan Paul International, 114 pp., ISBN 0 7103 0482 X, hb £30.00

Ethics in Early Buddhism. David J. Kalupahana, 1995, Hawaii, University of Hawaii Press, ix+ 171 pp., ISBN 0 8248 1702 8, hb $27.00

On Understanding Buddhists. Essays on Theravāda Tradition in Sri Lanka. John Ross Carter, 1993, Albany, State University of New York Press, xiv+215 pp, hb $16.95

To See the Buddha. A Philosopher's Quest for the Meaning of Emptiness. Malcolm David Eckel, 1994 (1st edn 1992), Princeton, Princeton University Press, x + 262 pp., ISBN 0 691 03773 6, pb US$ 16.95     

Expanding the rasch model to a general model having more than one dimension

The well-known Rasch model is generalized to a multicomponent model, so that observations of component events are not needed to apply the model. It is shown that the generalized model has retained the property of the specific objectivity of the Rasch model. For a restricted variant of the model, maximum likelihood estimates of its parameters and a statistical test of the model are given. The results of an application to a mathematics test involving six components are described.     

A microcomputer-based modulator for simulating insect songs and the response of crickets to an artificial calling song

A maching language program for the 6502 KIM-1 microcomputer to produce a pulsed output for modulating a signal generator is described. The pattern of modulation is easily controlled to produce chirps, trills, and pauses as components of artificial insect songs. In the laboratory, increased locomotory activity of male and female field crickets (Teleogryllus commodus) is induced by an artificial calling song. In the field, crickets of both sexes are attracted to pitfall traps from which the song is broadcast.     

Performance of pigeons on delayed simple and conditional discriminations under equivalent training procedures

A pair of experiments investigated the short-term memory of pigeons under delayed simple and conditional discriminations. Trial sequences in both discriminations consisted of a color as the sample stimulus, a memory interval, a line orientation as the test stimulus, and a trial outcome, which was either food reinforcement or blackout. Pecking rates during the test stimulus defined discrimination performance. In the simple discrimination, the sample provided the necessary information regarding the subsequent trial outcome. In the conditional discrimination, the sample and test stimuli conjointly provided this information. In Experiment 1, the two procedures were compared with independent groups of pigeons. In Experiment 2, the comparison was made within subjects. The simple discrimination was acquired more quickly and was performed better with a memory requirement. Introduction of long delays disrupted performance even at shorter delays in both discriminations. Postulation of prospective as well as retrospective mediating processes facilitates the interpretation of these results.     

Discrimination of multidimensional geometrical figures by chickens: categorization and pattern-learning

Japanese bantam hens were trained to discriminate between geometrical figures varying along four integral dimensions. Only one dimension predicted food: selections of sharp-cornered figures were reinforced, while selections of rounded figures were not. In experiment 1, hens were subsequently trained to discriminate between nine figure pairs in a simultaneous discrimination task. Because single pairs contained multiple redundant cues, whereas the relevant dimension was obvious only across stimulus pairs, the results revealed effects of both generalization and reversal learning. Accordingly, learning speed was enhanced for later discriminations. Experiment 2 tested the hens’ transfer performance to unknown pairs, following experience of 9 or 18 figure pairs. Four of seven hens showed reliable transfer after experience with 9 figures, but only three showed transfer after experience with 18 figures, indicating lower transfer with higher number of stimulus pairs learned. In experiment 3, hens were trained to discriminate 27 figure pairs. Discrimination ratios further decreased and the groups of pairs differed significantly in their ratios of discrimination. Individual hens’ pecking behaviour was analysed in relation to each dimension of single figures and in relation to relative differences in the levels of dimensions between paired figures. Hens were shown to be oriented towards irrelevant information and more towards relational and configurational than elemental and dimensional aspects. The results are discussed in the biological context of individual recognition in chickens’ dominance hierarchies, in which we suppose that chickens identify individual flock mates by representation of their visual pattern rather than by single characteristics. Received: 18 September 1998 / Accepted after revision: 23 December 1998     

Relational aggression and social-psychological adjustment in a college sample

Although the understanding of aggression has been significantly advanced through the study of relational aggression, past research has been limited by its predominant focus on children. This study examines the associations between relational aggression and social-psychological adjustment in a sample of young adults. A peer-nomination instrument was constructed to assess relational aggression, and self-reports of adjustment were obtained from 225 college students (45% male; mean age = 19.5). Regression analyses showed that relational aggression provided unique information, after controlling for age and gender, about peer rejection, prosocial behavior, antisocial personality features, and borderline personality features. Interactions with gender further showed that, for women, relational aggression was linked with bulimic symptoms. The importance of relational aggression for understanding adjustment problems during young adulthood are discussed.