Quokkas (Setonix brachyurus) demonstrate tactile discrimination learning and serial-reversal learning

Two male quokkas (Setonix brachyurus: a herbivorous macropod marsupial) were trained to discriminate pairs of stimuli in the laboratory. Quokkas indicated their choice by pulling on 1 of 2 simultaneously presented cords. The quokkas' discrimination abilities were tested on 6 tactile and 6 visual discrimination tasks. Correct responses were rewarded with food. For both quokkas, all tactile tasks were learned to a criterion of 75% correct in up to 4 20-trial sessions. No visual task maintained criterion performance in 4 sessions. One tactile discrimination was reversed 10 times. After the 1st reversal, the error rate declined sharply and fell to a level well below the initial discrimination.     

Visual discrimination learning and strategy behavior in the fat-tailed dunnart (Sminthopsis crassicaudata)

Fat-tailed dunnarts (Sminthopsis crassicaudata) were trained on visual discrimination learning-set, reversal-set, and spatial delayed-alternation tasks. The learning set involved 36 2-way black-and-white pattern discriminations and 5 probe reversals. Ten reversals of a black-and-white pattern discrimination were followed by 5 novel tasks. Spatial alternation was tested at delays up to 20 s. Learning-set and reversal-set formation, including 1-trial learning and spontaneous transfer from learning set to reversals and vice versa, was found. Learning-set-experienced dunnarts showed no retention of previously learned tasks 1 week after testing but demonstrated consistently high Trial 2 performance, indicating the retention of a response strategy. Delayed-alternation tasks were learned up to 10-s delays. These results provide the first evidence of a visually guided "win-stay, lose-shift" strategy in a marsupial.     

Differences in kata performance time and distance from a marker for experienced Shotokan karateka under normal sighted and blindfolded conditions

10 experienced Shotokan karateka were tested on performance time and distance from a marker on the five Heian kata under normal sighted and blind-folded conditions. Whilst each kata's line of movement is different, it is the intention to start and finish at the same location. Analysis showed that despite an average of 16.8 yr. of training, whilst timing was not significantly affected on four of the kata by subjects being deprived of the visual sense, the group's mean change in distance from an original marker was significant for performances on three of the kata.     

Psychological androgyny and ego development

Psychological androgyny has often been described as associated with increased behavioral flexibility, with the availability of skills in both traditionally masculine and feminine areas. Ego development has been described as involving an increasing differentiation of one's perception of self, of behavior, and of one's thoughts and feelings, as well as an increasing ability to integrate these differentiated aspects. We therefore predicted that androgynous individuals would show higher levels of ego development than sex-typed individuals, who would in turn be higher than undifferentiated subjects. Eighty-four undergraduate and graduate students completed the Washington University Sentence Completion Test and the Personality Research Form AN-DRO scale. No evidence of a relation between these measures was found. Several other negative findings have recently been reported, using other sex role measures. It appears that ego development, as currently measured, is not associated with sex-related self-concepts, as typically measured, though it may be associated with more androgynous sex role expectations of others, and with self-perceptions of agency and communion. Measures of sex-related self-concepts that provide separate scores for positive and negative attributes should be employed in future studies.This report is based on a thesis conducted by the first author in partial fulfillment of requirements for a master's degree in psychology, under the supervision of the second author. The authors are grateful to Leo Goldberger, Bob Holt, and an anonymous reviewer for helpful comments on an earlier draft of this report.     

The relationship between externality and E,N, P and L: an experiment and review

Rotter's Internal-External Locus of Control Scale, and the Eysenck Personality Questionnaire were given to 241 male 16-yr-olds and 144 skilled and semi-skilled men. As hypothesized, externality was positively associated with the N and P scales, negatively related to L and independent of E.     

On Seeing to the Horses: Issues in Teaching and Learning in Theology and Religious Studies After Bonino and Lindbeck

This article re-examines so-called “experiential approaches” to theology and religious studies. In affirming the need of the educator to attend to both cognitive and affective aspects within teaching and learning, and in using many concrete examples from classroom practice, the article critically engages with Latin American liberation theology and post-liberalism in an attempt to clarify what “experience” is being referenced when “experiential methods” are used. The importance of the concrete worlds of individual students, the responsibility of educators to be conscious of their own power in shaping the educational experience, and the desirability of attending to issues surrounding economic disadvantage within theology and religious studies feature prominently in the study. We conclude that, though no experience is neutral, educational contexts in theology and religious studies can offer exemplary settings for profound self-discovery, exploration, and personal development through the “hermeneutical friction” created by critical examination of the narrative worlds within which we live.     

PSYCHOBASIC: A BASIC dialect for the control of psychological experiments with the Commodore-64 and DELA interfacing

A modified version of BASIC for the control of psychological experiments is presented. PSYCHOBASIC runs on Commodore-64 computers with DELA interfacing, and it is based on Commodore BASIC. New commands control digital and analog input and output, centisecond timers, and counters. A control panel, which is displayed on the screen at all times, gives the status of many PSYCHOBASIC components. The interpreted nature of PSYCHOBASIC, as well as the control panel, makes the system easy to learn and use. The PSYCHOBASIC system is less expensive than equivalent systems for IBM-PC computers. A sample PSYCHOBASIC program is given.