Spiral aftereffect in assessment of brain damage

The potential role of the Archimedes spiral aftereffect, an illusory negative aftereffect of apparent movement, in the assessment of brain damage has been the subject of investigation by clinicians for over thirty years. The results bearing on its utility have been highly equivocal. This paper reviews the more important studies, identifies salient issues, and suggests directions for research into brain damage using this intriguing procedure.     

Memory for targets in a multilevel simulated environment: Evidence for vertical asymmetry in spatial memory

In two experiments, adult participants explored a symmetrical three-tiered computer-simulated building that contained six distinctive objects, two on each floor. Following exploration, the objects were removed, and the participants were asked to make direction judgments from each floor, indicating the former positions of the objects on that floor and on higher and lower floors. Relative tilt error scores indicated a bias, in that targets that were higher than the test location were judged as consistently lower than their actual positions and targets that were lower than the test location were judged as consistently higher than their actual positions. Absolute tilt errors revealed an asymmetry, with more accurate and less variable tilt errors for judgments directed to lower floors than for judgments directed to higher floors. Experiment 3 ruled out an account of the findings that does not relate them to spatial memory. The results suggest that the superiority of downward over upward spatial judgments, previously reported in two-dimensional visual-spatial tasks, extends to navigational spatial memory.     

Contrasting jail diversion and in-jail services for mental illness and substance abuse: do they serve the same clients?

Baseline data from a study of jail diversion services and in-jail behavioral health services were used to examine the differences in clients served by these two models of responding to people with co-occurring mental health and substance abuse problems in the criminal justice system. Clients of the diversion service had more acute psychiatric symptoms and were more likely to have a diagnosis of psychosis NOS. Clients of the in-jail service were more likely to have been on probation or parole in the past and to have received substance abuse treatment. Different service models may attract and serve different populations of clients. Diversion services may cast a wider net that includes clients who may not have otherwise been involved in forensic services.     

Never getting to zero: Elementary school students' understanding of the infinite divisibility of number and matter

Clinical interviews administered to third- to sixth-graders explored children's conceptualizations of rational number and of certain extensive physical quantities. We found within child consistency in reasoning about diverse aspects of rational number. Children's spontaneous acknowledgement of the existence of numbers between 0 and 1 was strongly related to their induction that numbers are infinitely divisible in the sense that they can be repeatedly divided without ever getting to zero. Their conceptualizing number as infinitely divisible was strongly related to their having a model of fraction notation based on division and to their successful judgment of the relative magnitudes of fractions and decimals. In addition, their understanding number as infinitely divisible was strongly related to their understanding physical quantities as infinitely divisible. These results support a conceptual change account of knowledge acquisition, involving two-way mappings between the domains of number and physical quantity.     

Gender-typical responses to sexual and emotional infidelity as a function of mortality salience induced self-esteem striving

The authors propose that gender-differentiated patterns of jealousy in response to sexual and emotional infidelity are engendered by the differential impact of each event on self-esteem for men and women. Study 1 demonstrated that men derive relatively more self-esteem from their sex lives, whereas women's self-esteem is more contingent on romantic commitment. Based on terror management theory, it is predicted that if gender-differentiated responses to infidelity are motivated by gender-specific contingencies for self-esteem, they should be intensified following reminders of mortality. In Study 2, mortality salience (MS) increased distress in response to sexual infidelity for men and emotional infidelity for women. Study 3 demonstrated that following MS, men who place high value on sex in romantic relationships exhibited greater distress in response to sexual infidelity, but low-ex-value men's distress was attenuated. The authors discuss the implications for evolutionary and self-esteem-based accounts of jealousy as well as possible integration of these perspectives.     

Freud and Jung: an incomplete encounter

The author discusses the bases of the close, personal and professional relationship between Freud and Jung, and conjectures that the eventual schism between them was the result of the different profound psychological needs that each had for the other. Because of his identification with the psychoanalytic enquiry, particularly as it was based in large measure on his own self analysis, Freud looked to Jung as a collaborator who would not deviate from the principles at the basis of psychoanalysis, seeking psychoanalysis' acceptance within the established scientific community. From Jung's point of view, Freud fulfilled the role of a respected father figure who, Jung hoped, would grant him the autonomy and freedom to pursue his own scientific enquiry, based on Freud's ideas, but which he would revise according to his own researches. These led Jung to certain revisions and additions, such as the nature and function of the libido, the broadening of the idea of the complex (as in the Oedipus complex) to include a number of universal, archetypal themes, and the elaboration of the concept of the self. During the years of their relationship, they shared a mutual psychological support which was deeply important to each, based on reciprocal love and respect but also on a fantasy that each would be able to supply to the other a key capacity that the other lacked. Jung was able to offer important scientific verifications of a number of psychoanalytic notions via the Word Association Test, such as the concept of repression, of the complex, including the Oedipus complex, and the proof of the existence of the unconscious. However, neither could supply to the other what each looked for in the other at the psychological level. The final breakdown and rupture in their relationship was caused by their theoretical differences and by the fact that they became bitter competitors in a race to publish treatises on the nature and origins of spirituality and religion. It has left in its wake the implicit traces of discord and misapprehension which have characterized much of subsequent professional relationships between the two traditions.