PHILIP LEVY AND THE G INDEX — A FINAL REPLY

Levy's argument using double extended matrices is shown to be without basis. Such a technique, it is pointed out, cannot properly be used in R technique to eliminate factors of means since it represents the double scoring of items—not persons, as would be required in his illustration.     

Peer group processes and adolescent health-related behaviour: More than ‘peer group pressure’?

This paper argues that ‘peer group pressure’ conveys an individualistic and hence inadequate account of the group processes involved in adolescents' adoption of health-related behaviours such as smoking and drinking. We describe traditional analyses of adolescent peer processes, illustrate how these contain a series of individualistic assumptions about peer interactions/social influence processes, and describe how these structure the analysis of adolescent health-related behaviour and health education interventions. We highlight the inadequacies of these analyses, outline an alternative and draw out its implications for health education.     

Lateral bias in infant chimpanzees (Pan troglodytes)

This study documents the presence, strength, and direction of lateralization in chimpanzees (Pan troglodytes) over the first 3 months of life. Nursery-reared chimpanzees (7 males and 5 females) were repeatedly assessed on a behavioral scale. Lateral bias was measured for 4 behaviors: hand-to-mouth, hand-to-hand, defensive grasp, and first step. Hand-to-mouth was significantly lateralized for the sample. Eight of the 10 chimpanzees that showed hand-to-mouth used the right hand. Lateral bias for defensive grasp was positively related to lateral bias both of first step and of hand-to-mouth. Lateral bias in hand-to-mouth was inversely related to lateral bias in hand-to-hand. Strength of lateralization increased as chimpanzees matured. These laterality effects in infant chimpanzees were expressed under conditions of emotional arousal. Moreover, degree of laterality may be a predictor of responsivity to stress.     

TREATMENT OF FACIAL PARALYSIS OF CNS-ORIGIN: INITIAL STUDIES

Many hemiplegic patients suffer a chronic (central) facial paralysis. Usually these patients have lost voluntary control of the involved muscles, while their ability to produce spontaneous emotional expression remains intact. Electromyographical (EMG) biofeedback and Neuro Developmental Treatment (NDT) are well-documented methods for the rehabilitation of these patients. EMG biofeedback has been described and evaluated by Huffman (1978). This technique and Huffman's findings will be briefly reviewed in the current paper. The NDT method, as well as our own pilot study, are also described. Huffman found that a combination of myofeedback and mirror-feedback led to more progress than treatment with mirror-feedback alone. From the NDT study, it is clear that improvements in orofacial functioning can be achieved. In the discussion, some principles from the neurosciences are put forward to explain the results.     

Consenting to Donate Organs: Whose Wishes Carry the Most Weight?

An experimental simulation methodology examined how people weigh the wishes of the donor and the next-of-kin in recommending whether the latter should consent to donate the organs of a deceased loved one. Subjects read several brief stories, each describing a young adult who had died suddenly and whose kin faced the decision of whether to donate their loved one's organs. Each scenario had four versions, identical except for minor wording changes providing information about the organ donation wish of the potential donor and the next-of-kin. Subjects indicated "yes,""no," or "I'm undecided" about whether the kin should donate the organs. Subjects weighted the wishes of the deceased much more heavily than their own or those of the next-of-kin when those wishes were stated directly. When the deceased's wishes had to be inferred indirectly, attitudes of the next-of-kin and the experimental subject affected the decision much more. Implications for organ procurement practice are considered.     

Perceived control in rhesus monkeys (Macaca mulatta): enhanced video-task performance

This investigation was designed to determine whether perceived control effects found in humans extend to rhesus monkeys (Macaca mulatta) tested in a video-task format, using a computer-generated menu program, SELECT. Choosing one of the options in SELECT resulted in presentation of 5 trials of a corresponding task and subsequent return to the menu. In Experiments 1-3, the animals exhibited stable, meaningful response patterns in this task (i.e., they made choices). In Experiment 4, performance on tasks that were selected by the animals significantly exceeded performance on identical tasks when assigned by the experimenter under comparable conditions (e.g., time of day, order, variety). The reliable and significant advantage for performance on selected tasks, typically found in humans, suggests that rhesus monkeys were able to perceive the availability of choices.     

An analysis of second-order autoshaping

Three mechanisms can explain second-order conditioning: (1) The second-order conditioned stimulus (CS2) could activate a representation of the first-order conditioned stimulus (CS1), thereby provoking the conditioned response (CR); The CS2 could enter into an excitatory association with either (2) the representation governing the CR, or (3) with a representation of the reinforcer evoked by the CS1. A series of experiments using second-order autoshaping with birds was performed to examine these possibilities. Following second-order autoshaping, birds’ responding to the CS2 was found to be unaffected by extinction of the CS1, a result interpreted as showing mechanism (1) to be unimportant and implicating either one or both of the other mechanisms. The CS2 was also shown to provide the birds with specific sensory information about the reinforcer, a pattern of results uniquely predicted by mechanism (3). Implications for the understanding of second-order conditioning and for the SOP model (Wagner, 1981) of associative learning are discussed.     

A neuropsychological dimension for anchoring effects

Previous research has shown that strength of handedness predicts differences in sensory illusions, Stroop interference, episodic memory, and beliefs about body image and the origin of species. Recent evidence also suggests handedness differences in the susceptibility to information framing and persuasion. The present paper extends this line of work to decision anchoring effects. In Experiment 1, 131 introductory psychology students responded to 12 real‐world knowledge questions after being given random, uninformative high or low anchors. Results indicated that “strong‐handers” showed larger anchoring effects than “mixed‐handers.” In Experiment 2, 89 introductory psychology students responded to 6 real‐world knowledge questions in a modified, two‐step anchoring task in which participants were given a credible source for the anchored information and asked to give pre‐ and post‐anchor estimates. In contrast to Experiment 1, results revealed that mixed‐ and strong‐handers were affected similarly by anchoring. In Experiment 3, 158 students were asked to estimate the answer to one of two versions of 8! (8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 or 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8)—a multiplication problem in which the high and low anchors are inherently informative. Here, mixed‐handers showed larger anchoring effects than strong‐handers. A theory centered around the notion of hemispheric specialization and the communication between the two halves of the brain as well as arguments about the informativeness of anchors, metacognition, and recent theorizing in the anchoring literature are used to account for these data. Copyright © 2005 John Wiley & Sons, Ltd.     

When feeling poorly at work does not mean acting poorly at work: The moderating role of work-related emotional intelligence

It is important, both theoretically and for applied reasons, to understand who is likely to engage in counterproductive work behaviors. It is known that such behaviors are more likely to be exhibited by unhappy employees (i.e., those high in job negative affect), but this should be particularly true for individuals low in work-related emotional intelligence. The current study (N = 91) examined moderation-related hypotheses of this type in relation to five counterproductive work behaviors—abuse, sabotage, theft, withdrawal, and production deviance—among a sample of employees working at least 20 h per week. These behaviors varied positively by job negative affect and negatively by work-related emotional intelligence. In addition, the two predictors interacted for all five outcomes such that the highest levels of counterproductive work behavior were observed among employees who were high in job negative affect and low in emotional intelligence. The discussion focuses on implications for understanding counterproductive work behaviors and on the value of assessing work-related emotional intelligence as an ability that differs by employees.     

Geographical contributions to understanding contemporary Islam: current trends and future directions

In recent years, geographers have been giving increasing attention to religion—and Islam in particular—yet such work is rarely referred to within the broader social science literature about Islam and Muslims. This paper seeks to promote interdisciplinary dialogue, discussion and debate by highlighting the contributions that human geographers are making to understandings of contemporary Islam. In particular, I draw upon research within urban, social, cultural and feminist geographies to review current trends within geographical scholarship about Muslims individuals and communities. I then use this paper to suggest ways in which interdisciplinary research—in collaboration with human geographers—might seek to advance contemporary understandings of the social and spatial experiences of Muslim families and communities. I propose that a focus upon households, nations and intersections offer potential avenues for future research, whilst also highlighting the importance of thinking critically about the methodological issues involved in understanding contemporary Islam