Anomalous brain dominance and the immune system: Do left-handers have specific immunological patterns?

Geschwind and Behan (1982) and Geschwind and Galaburda (1985a, 1985b, 1985c) suggested a correlation between brain laterality and immune disorders. To test whether this hypothesis holds true not only for the frequency of immune diseases and circulating autoantibodies, but extends also to cellular immunity, we examined the association between handedness and markers of cellular immunity. Twenty-seven left-handed and 37 right-handed subjects were serologically screened for cellular parameters and 22 left-handed subjects were typed for human leukocyte antigen (HLA). When compared to the right-handers, the left-handed group showed a significant decrease in the inflammatory cell types CD3(+) T cells (total T cells), CD4(+) T cells (T-helper cells), and HLA-Dr (MHC-II, antigen-presenting cells) as well as in the CD19(+) cells (B cells) and CD16/CD57(+) cells (natural killer cells). We assume a relationship exists between cerebral hemispheric specialisation and the immune system not only for humoral but also for cellular immunity, and we discuss the role of the major histocompatibility complex in neurological and immunological development.     

Differential impact of abortion on adolescents and adults.

The purpose of this study was to compare adolescent and adult reactions to abortion. A sample of 252 women from 42 states was obtained from a national survey of organizations serving as support groups for women who have had negative reactions to abortion. The age analysis was run using t-tests. Results indicated that the adolescents were significantly more likely to be dissatisfied with the choice of abortion than were the older subjects, to have abortions later in the gestational period, to be dissatisfied with services at the time of the abortion, to feel forced by circumstances to have the abortion, to report being misinformed at the time of the abortion, and to report greater severity of psychological stress. The conclusions suggest that the adolescents' problems may be due to a combination of developmental limitations and the nature of counseling at the time of the abortion.     

MEMORY, AMNESIA, AND DISSOCIATIVE IDENTITY DISORDER

Abstract— Virtually all patients with dissociative identity (or multiple personality) disorder manifest interpersonality amnesia, whereby events experienced by a particular personality slate or identity are retrievable by that same identity but not by a different one Though considered a hallmark of dissociative identity disorder (DID), interpersonality amnesia has to date attracted little empirical attention. Further, the few studies on the topic typically include just 1 DID patient and a single index of retention. In contrast the current experiment involved 9 DID patients and several measures of either explicit or implicit memory Replicating and extending the single-case study of Nissen, Ross, Willingham, MacKenzie, and Schacter (1988), the present results revealed that implicit testing is a necessary but not a sufficient condition for demonstrating transfer of information from one identity to another Specifically, whereas priming in word-stem completion occurred only if the same personality state performed at both study and at test, priming in picture-fragment completion was as robust between different identities as it was within the same identity Discussion focuses on prospects for future research aimed at understanding the nature and scope of interpersonality amnesia.     

AN ENCOUNTER GROUP AND CHANGES IN COUNSELORS' VALUES1

The purpose of this study was to assess the effect of encounter group treatment on the values and value systems of 24 employment service counselors. A time series own control design was used. Treatment consisted of 27 hours in encounter groups over a three-week period. Thirty-six value rankings were obtained before and after treatment, and again six months later. There was greater change in instrumental than terminal values during and after treatment. Contrary to expectation, personal and conservative values became more important than social and liberal values after treatment. Most value changes during treatment did not persist six months later.     

Self-directed career exploration: A comparison of CHOICES and the Self-Directed Search

This study compared student satisfaction ratings for CHOICES, an interactive computer-based career guidance program, and the Self-Directed Search,a pencil-and-paper career planning guide. During the first testing session, subjects (N = 75) completed a biographical data sheet and were alternately assigned to either the CHOICES or the SDS treatment. Later, each subject completed the other treatment and two research instruments designed to assess their reactions to both treatments. Results indicated a user preference for CHOICES over the SDS, although both programs received positive ratings. The findings were discussed in terms of user reactions to career guidance programs and the selection of the most cost-effective treatment.     

Slow wave sleep and recollection in recognition memory

Recognition memory performance reflects two distinct memory processes: a conscious process of recollection, which allows remembering specific details of a previous event, and familiarity, which emerges in the absence of any conscious information about the context in which the event occurred. Slow wave sleep (SWS) and rapid eye movement (REM) sleep are differentially involved in the consolidation of different types of memory. The study assessed the effects of SWS and REM sleep on recollection, by means of the "remember"/"know" paradigm. Subjects studied three blocks of 12 words before a 3-h retention interval filled with SWS, REM sleep or wakefulness, placed between 3 a.m. and 6 a.m. Afterwards, recognition and recollection were tested. Recollection was higher after a retention interval rich in SWS than after a retention interval rich in REM sleep or filled with wakefulness. The results suggest that SWS facilitates the process of recollection in recognition memory.     

Semantic and syntactic factors in the perception of rapidly presented sentences

An important controversy in psycholinguistics has been the nature of the initial hypothesis in sentence processing. This problem has been directly addressed with the Rapid Serial Visual Presentation (RSVP) technique, in which words of a sentence are presented one at a time at tachistoscopic rates. The results of this research (Forster and Ryder, 1971) have provided evidence against Bever's (1970) thesis that most normal perceptual processing of sentences is probably carried out with little regard to actual sequence or structure. However, since the number of words seen is a result of presentation speed as well as psycholinguistic processing, this result could be an artifact of presentation rate. A slower or faster rate could facilitate different processing strategies and perhaps suggest a different nature of the initial hypothesis. Thus, the present study is a conceptual replication of Forster and Ryder (1971), at different presentation rates. While significant effects for syntactic structure were obtained only at the slower presentation rate, results for semantics were significant at both slow and fast presentation speeds. Thus, insofar as sentence perception with the RSVP technique reflects the nature of the initial hypothesis, it is suggested that the hypothesis is semantic.     

The commerce of human body parts: an Eastern Orthodox response.

The Orthodox Church teaches that the bodies of those in Christ are to be regarded as sanctified by the hearing of the Word and faithful participation in the Sacraments, most particularly the Holy Eucharist; because of the indwelling of the Holy Spirit the consecrated bodies of Christians do not belong to them but to Christ; with respect to the indwelling Holy Spirit there is no difference between the bodies of Christians before and after death; whether before or after death, the Christian body is also to receive the same veneration; and notwithstanding the physical corruptions that the body endures by reason of death, there remains a strict continuity between the body in which the Christian dies and the body in which the Christian will rise again. That is to say, it is the very same reality that is sown in corruption and will be raised in incorruption. Given such consideration, the notion of "selling" and integral part of a human being is simply outside the realm of rational comprehension. Indeed, it is profoundly repugnant to those Orthodox Christian sentiments that are formed and nourished by the Church's sacramental teaching and liturgical worship. One does not sell or purchase that which has been consecrated in those solemn ways that the Church consecrates the human body.