Voluntary exercise ameliorates cognitive deficits in morphine dependent rats: the role of hippocampal brain-derived neurotrophic factor

Chronic exposure to opiates impairs spatial learning and memory. Given the well-known beneficial effects of voluntary exercise on cognitive functions, we investigated whether voluntary exercise would ameliorate the cognitive deficits that are induced by morphine dependence. If an effect of exercise was observed, we aimed to investigate the possible role of hippocampal brain-derived neurotrophic factor (BDNF) in the exercise-induced enhancement of learning and memory in morphine-dependent rats. The rats were injected with bi-daily doses (10mg/kg, at 12h intervals) of morphine over a period of 10 days of voluntary exercise. Following these injections, a water maze task was performed twice a day for five consecutive days, followed by a probe trial 2 days later. A specific BDNF inhibitor (TrkB-IgG chimera) was used to block the hippocampal BDNF action during the 10 days of voluntary exercise. We found that voluntary exercise blocked the ability of chronic morphine to impair spatial memory retention. A blockade of the BDNF action blunted the exercise-induced improvement of spatial memory in the dependent rats. Moreover, the voluntary exercise diminished the severity of the rats' dependency on morphine. This study demonstrates that voluntary exercise ameliorates, via a TrkB-mediated mechanism, the cognitive deficits that are induced by chronic morphine. Thus, voluntary exercise might be a potential method to ameliorate some of the deleterious behavioral consequences of the abuse of morphine and other opiates.     

Evaluating psychometric properties of Farsi version of the Positive and Negative Perfectionism Scale

This study examined the psychometric properties of the Farsi version of the Positive and Negative Perfectionism Scale. Two samples of 97 (56 women, 41 men) and 115 (67 women, 48 men) undergraduate students at the University of Tehran participated. Findings supported the internal consistency, test-retest reliability, concurrent validity, and factor structure of the Farsi version. Factor analysis provided evidence for two dimensions of perfectionism, Positive and Negative perfectionism. The two dimensions had significant negative and positive correlations, respectively, with measures of psychological distress and health, respectively. The Farsi version of the Positive and Negative Perfectionism Scale presented good psychometric properties for use in research.     

Memory and metamemory in obsessive-compulsive disorder

Studies on the link between checking and memory problems have produced equivocal results regarding a general memory deficit in patients with obsessive-compulsive disorder and subclinical checkers. However, there is clear and consistent evidence that patients with obsessive-compulsive disorder (OCD) show lack of confidence in their memory performance. The purpose of the present study was to investigate memory and metamemory performance (feeling-of-knowing judgments) for neutral and threat-related material in three groups: OCD patients (OCs), subclinical checkers (SCs), and normal controls (NCs). Participants studied a list of neutral and threat word pairs. After an initial cued-recall test, they provided feeling-of-knowing (FOK) judgments for unrecalled word pairs, followed by a recognition test. The results showed that OCs but not SCs were impaired in both recall and recognition compared to NCs. OCs were also less confident about their future memory performance than the other two groups, as reflected in their lower FOK ratings. Moreover, FOK judgments of the OCs were not reliable predictors of their recognition performance. Finally, neither OCs nor SCs showed any evidence of memory bias for threat-relevant information. The results support the idea of a general memory and a metamemory deficit in OCs.     

Mechanisms and the current state of deep brain stimulation in neuropsychiatry

Deep brain stimulation (DBS) is established as a therapy for movement disorders, and it is an investigational treatment in other neurologic conditions. DBS precisely targets neuroanatomical targets deep within the brain that are proposed to be centrally involved in the pathophysiology of some neuropsychiatric illnesses. DBS is nonablative, offering the advantages of reversibility and adjustability. This might permit therapeutic effectiveness to be enhanced or side effects to be minimized. Preclinical and clinical studies have shown effects of DBS locally, at the stimulation target, and at a distance, via actions on fibers of passage or across synapses. Although its mechanisms of action are not fully elucidated, several effects have been proposed to underlie the therapeutic effects of DBS in movement disorders, and potentially in other conditions as well. The mechanisms of action of DBS are the focus of active investigation in a number of clinical and preclinical laboratories. As in severe movement disorders, DBS may offer a degree of hope for patients with intractable neuropsychiatric illness. It is already clear that research intended to realize this potential will require a very considerable commitment of resources, energy, and time across disciplines including psychiatry, neurosurgery neurology, neuropsychology, bioengineering, and bioethics. These investigations should proceed cautiously.     

Authoritarian and aggressive attitudes in American students

In a sample of 118 college students, scores on a measure of authoritarian attitudes were associated with scores on subscales from the Buss and Perry (1992) Aggression Questionnaire.     

Sex education sources and attitudes about premarital sex of Seventh Day Adventist youth

37 Seventh Day Adventist youth were surveyed about their sex education and attitudes towards premarital sex. Analysis indicated differences between their attitudes and actual sexual behaviour. While 70% endorsed the church's prohibition on premarital sex, 54% had engaged in premarital sex.     

Critical flicker frequency under monocular and binocular conditions.

Critical flicker frequency of 40 undergraduate students, 20 men and 20 women whose mean age was 19.3 yr., was measured under monocular and binocular viewing conditions, using the Lafayette Visual Perception Control with Display Unit. Half of the subjects received monocular treatment first and binocular treatment second, and the other half received the treatments in the reversed order. A 2-min. rest was allowed between these treatments. Analysis shows that mean CFF under the monocular condition was significantly lower than that under binocular conditions. The findings were discussed in terms of visual constraint and eye strain and fatigue under the monocular viewing condition.     

Book reviews and notes

GENERAL.

LA REVANCHE DE DIEU. By Gilles Kepel. Paris: Editions du Seuil, 1991. 283pp. Pb. n.p. ISBN 2–02–012929–9.

DEFENDERS OF GOD: THE FUNDAMENTALIST REVOLT AGAINST THE MODERN AGE. By Bruce B. Lawrence. London: I.B. Tauris, 1990. 306pp. Hb. n.p. ISBN 1–85043–288–0.

ISLAM AND THE CONTEMPORARY WORLD. By G.W. Choudhury. London: Indus Thames Publishers Ltd., 1990. 227pp. Hb. £15.00. ISBN 1–85555–000–8.

TOWARDS UNDERSTANDING THE QUR'AN. VOL.III, SURAHS 7–9. By Sayyid Abul a'la Mawdudi. Translated and edited by Zafar Ishaq Ansari. Leicester: The Islamic Foundation, 1990/1411. 328pp. Pb. n.p. ISBN 0–86037–205–7.

AL‐GHAZALI: INVOCATIONS AND SUPPLICATIONS: KITAB AL‐ADHKAR WA'L‐DA'AWAT: BOOK IX OF THE REVIVAL OF THE RELIGIOUS SCIENCES: IHYA’ ‘ULUM AL‐DIN. Translated with an Introduction and Notes by K. Nakamura. Cambridge: Islamic Texts Society, 1990. 131pp. Pb. n.p. ISBN 0–946621–14–4.

TODAY'S PROBLEMS, TOMORROW'S SOLUTIONS: THE FUTURE STRUCTURE OF MUSLIM SOCIETIES. By Abdullah Omar Naseef. London and New York: Mansell, 1988. 180pp. Hb. £30.00. ISBN 0–7201–1991‐X.

AN EARLY CRESCENT: THE FUTURE OF KNOWLEDGE AND THE ENVIRONMENT IN ISLAM. Edited by Ziauddin Sardar. London and New York: Mansell, 1989. 251pp. Hb. £30.00. ISBN 0–7201–2005–5.

BEYOND FRONTIERS: ISLAM AND CONTEMPORAY NEEDS. Edited by Merryl Wyn Davies and Adnan Khalil Pasha. London and New York: Mansell, 1989. 216pp. Hb. £30.00. ISBN 0–7201–2039‐X.

AL‐KASIM B. IBRAHIM ON THE PROOF OF GOD'S EXISTENCE: KITA AL‐DALI AL‐KABIR. Edited by Binyamin Abrahamov. Islamic Philosophy and Theology Series, Vol.V. Leiden: E.J. Brill, 1990. 201pp. Hb. DFL110.00 US$55.00. ISBN 90–04–08985–3.

ISLAM AND THE CULTURAL ACCOMMODATION OF SOCIAL CHANGE. By Bassam Tibi. Boulder, Colorado: Westview Press. 1990. 272pp. Hb. £24.95. ISBN 0–8133–0917–4.

BAHA’ I WALAD: GRUNDZÜGE SEINES LEBENS UND SEINER MYSTIK. By FRITZ MEIER. Acta Iranica. Textes et Mémoires, vol.14. Leiden: E.J. Brill, 1989. 484pp. Hb. DF200, US$100. ISBN 90–6831–094–1.

IBN RUSHD (AVERROES). By Dominique Urvoy. Arabic Thought and Culture Series. London: Routledge, 1991. 156pp. Pb. £10.99. ISBN 0–415–05567–9.

ISLAM: THE FEAR AND THE HOPE. By Habib Boulares. London: Zed Books, 1990. 144pp. Pb. £8.95; $15.00. ISBN 0–86232–945–0.

IBN KHALDUN. By Aziz al‐Azmeh. London: Routledge, 1990. 176pp. Pb. n.p. ISBN 0–415–03598–8.

REGIONAL.

Africa.

ZANZIBAR UNDER COLONIAL RULE. Edited by Abdul Sheriff and ed Ferguson. Eastern African Studies: London: James Curry, 1991. 278pp. Pb. £9.95. ISBN 0–85255–080–4.

ISLAM ET SOCIETES AU SUD DU SAHARA. Editions de la Maison des Sciences de l'Homme, Paris. No.4, November 1990. ISSN 0084–7685.

TURABI'S REVOLUTION: ISLAM AND POWER IN SUDAN. By Abdelwahab el‐Affendi. London: Grey Seal Books, 1991. xvi + 209pp. Hb. n.p. ISBN 1–85640–004–2.

FAITH OF OUR FATHERS: STUDIES ON RELIGIOUS EDUCATION IN SUB‐SAHARAN AFRICA. By Gerrie Ter Haar. Utrecht: Faculteit der Godgeleerdheid, Rijksuniversiteit Utrecht, 1990. 173pp. Pb. DFI. 10.00. ISBN 90–72235–13–4.

THE GUNNY SACK: AFRICA'S ANSWER TO ‘MIDNIGHT'S CHILDREN’. By M.G. Vassanji. Oxford: Heinemann International, 1989. 276pp. Pb. £4.95; $7.95. ISBN 0–435–90544–9.

NAVIGATION OF A RAINMAKER: AN APOCALYPTIC VISION OF WAR‐TORN AFRICA. By Jamal Mahjoub. Oxford: Heinemann International, 1989. 184pp. Pb. £4.95; $7.95. ISBN 0–435–90560–0.

Asia.

MUSLIM WOMEN IN INDIA: POLITICAL AND PRIVATE REALITIES. By SHAHIDA Lateef. London: Zed books, 1990. 238pp. Pb. £10.95; $16.95. ISBN 0–86232–955–8.

THE GIFT OF A VIRGIN: WOMEN, MARRIAGE AND RITUAL IN A BENGALI SOCIETY. By Lina M. Fruzzetti. Oxford: OUP, 1990. 178pp. Pb. £3.95. ISBN 0–19–56200–1.

SAINTS, GODDESSES AND KINGS: MUSLIMS AND CHRISTIANS IN SOUTH INDIAN SOCIETY, 1700–1900. By Susan Bayly. Cambridge: CUP, 1989. 502pp. Hb. £40.00. US$59.50. ISBN 0–521–37201–1.

Europe.

ISLAM IN RELIGIOUS EDUCATION TEXTBOOKS IN EUROPE. By Abdoldjavad Falaturi. Köln: Islamische Wissenschaftliche Akademie, 1990. 106pp. Pb. n.p. IBN 3–89108–005–0.

MUSLIM THOUGHTS FOR TEACHERS AND TEXTBOOKS AUTHORS. By Abdoldjavad Falaturi. Köln: Islamische Wissenschaftliche Akademie. 92pp. Pb. n.p. ISBN 3–89108–006–9.

RELIGION, STATE AND SOCIETY IN MODERN BRITAIN. Edited by Paul Badham. Lampeter: The Edwin Mellen Press, 1989. 401pp. Pb. n.p. ISBN 0–88946–832‐X.

POLITICAL PARTIES AND DEMOCRACY IN TURKEY. Edited by Metin Hepper and Jacob m. Landau. London & New York: Tauris, 1991. 225pp. Hb. £29.95. ISBN 1–85043–300–3.

EGYPT AND THE CRISIS OF ISLAM. By Zahia Ragheb Dajani. American University Studies, Series IX, History, Vol.56. New York: Peter Lang, 1990. ix + 255pp. Hb. £29.00. ISBN 0–8204–1060–8.

ISLAMIC FUNDAMENTALISM IN EGYPTIAN POLITICS. By Barry Rubin. Basingstoke: Macmillan, 1990. 178pp. Hb. £35.00.0 ISBN 0–333–54374–2.

SADAT AND AFTER: STRUGGLES FOR EGYPT'S POLITICAL SOUL. By Raymond William Baker. London: Tauris, 1990. 365pp. Pb. £26.50. ISBN 1–85043–216–3.

A HISTORY OF THE ARAB PEOPLES. By Albert Hourani. London: Faber and Faber Ltd., 1991. 551pp. Hb. £25.00. ISBN 0–571–13378–9.

TANZIMAT AL‐AHWAL AL‐SHAKSIYYA (PERSONAL STATUS LAW). Limassol: Middle East Council of Churches, 1990.394pp. Pb. n.p. (Arabic).

CAIRO UNIVERSITY AND THE MAKING OF MODERN EGYPT. By Donald Malcolm Reid. Cambridge: CUP, 1990. 296pp. Hb. £32.50; US$54.50. ISBN 0–521–36641–0.

EGYPT UNDER MUBARAK. Edited by CHARLES Tripp and ROGER OWEN. London: Routledge, 1989. 191pp. Hb. £35.00. ISBN 0–415–03887–1.

CITIZENS APART: A PORTRAIT OF THE PALESTINIANS IN ISRAEL. By Amina Minns and Nadia Hijab. London: I.B. Tauris, 1990. 210pp. Hb. n.p. ISBN 1–85043–204‐X.

RELIGIOUS RADICALISM AND POLITICS IN THE MIDDLE EAST. By Emmanuel Sivan and Menachem Friedman. New York: State University of New York Press, 1990. 244pp. P.b. $16.95. ISBN 2–7914–0158–8. (Hb), 0–7914–0159–6 (Pb).

VILLES AU LEVANT: HOMMAGE A ANDRE RAYMOND. Edited by Pierre‐Robert Baduel. Revue du Monde Musulman et de la Méditer‐ranée, no.55/56. Aix‐en‐Provence: Edisud, 1990. 307pp. Pb. FF.160.00. ISBN 2–85744–471–0.

THE NEAR EAST SINCE THE FIRST WORLD WAR. By M.E. Yapp. London and New York: Longman, 1991. 526pp. Pb. £14.95. ISBN 0–582–49499–0.

RECOGNIZING ISLAM: RELIGION AND SOCIETY IN THE MODERN MIDDLE EAST. By M. GILSENAN. London: I.B. Tauris, 1990. 288pp. Pb. £5.95. IBN 1–85043–297‐X.

KUWAIT AND IRAQ: HISTORICAL CLAIMS AND TERRITORIAL DISPUTES. By Richard Schofield. London: Royal Institute of International Affairs, 1991. 134pp. + annexes. Pb. £7.50 + postage. ISBN 0–905031–35–0.

HISTORY AND POLITICS IN ELEVENTH‐CENTURY BAGHDAD. By George Makdisi. Aldershot: Variorum, 1990. I‐IX + addenda and index. Hb. £42.50. ISBN 0–86078–289–1.

EGYPT: MOULIDS, SAINTS, SUFIS. By Nicholaas H. Biegman. London: Kegan Paul International, 1991. 175pp. Hb. £25.00. ISBN 0–7103–0415–3.

AN A TO Z OF THE MIDDLE EAST. By Alain Gresh and Dominique Vidal. London: Zed Books, 1990. 262 pp. Pb. £9.95; $15.00. ISBN 0–86232–881–0.

MY JERUSALEM: TWELVE WALKS IN THE WORLD'S HOLIEST CITY. By Teddy Kollek and Shulamith Eisner. London: Weidenfeld & Nicolson, 1990. 160pp. Hb. £14.95. ISBN 0–297–79697–6.

CHRISTIAN‐MUSLIM RELATIONS.

EARLY EGYPTIAN CHRISTIANITY FROM ITS ORIGINS TO 451 C.E. By C.W. GRIGGS. Leiden: E.J. Brill, 1990. 276pp. Hb. DFI.140; U.S.$70. ISBN 90–04–09159–9.

COPTS AND MUSLIMS IN EGYPT: A STUDY ON HARMONY AND HOSTILITY. By S.M. Solihin. Leicester: The Islamic Foundation, 1991. 120pp. Pb. n.p. ISBN 0–86037–207–3.

MY NEIGHBOUR IS MUSLIM. A HANDBOOK FOR REFORMED CHURCHES. Edited by John Knox International Reformed Centre, Geneva. Geneva: John Knox International Reformed Centre, 1990. 112pp. Pb. Sfr.10.00, DM12.00, $8.00, FF40.00.

ENCOUNTER BETWEEN CHRISTIANS AND MUSLIMS. Edited by Evangelisches Missionswerk, EMW. Offprint from Mission Studies. Vol. VIII 1, 15, 1991. 48pp.

ISLAMIC SPAIN 1250–1500. By L.P. Harvey. Chicago: University of Chicago Press, 1990; 369pp. Pb. £31.95, US$45.95. ISBN 0–226–31960–1.

MUSLIMS UNDER LATIN RULE 1100–1300. Edited by James M. Powell. Princeton: Princeton University Press, 1990. 221pp. Hb. £29.95. ISBN 0–691–05586–6.

GOTTES IST DER ORIENT, GOTTES IST DER OKZIDENT: FESTSCHRIFT FÜR ABDOLJAVAD FALATURI ZUM 65. GEBURT‐STAG. Hrsg. Udo Tworuschka. Kölner Veröffentlichungen zur Religionsgeschichte. Bd. 21. Köln, Wien: Böhlau Verlag, 1991. 650pp. Hb. n.p. ISBN 3–412–03790–7.     

Psychological maladjustment mediates the link between remembrances of parental rejection in childhood and loneliness in adulthood: A cross-cultural comparative study

Drawing stimulus from interpersonal acceptance-rejection theory, this multicultural study examined relations between men's versus women's remembrances of maternal and paternal acceptance-rejection in childhood and their current level of loneliness, as mediated by adults' self-reported psychological maladjustment. Adults (N = 899) from five nations (Iraq, Italy, the Netherlands, Pakistan, and the United States) responded to the Adult version of the Parental Acceptance-Rejection Questionnaire-short form for mothers and fathers, the Adult version of the Personality Assessment Questionnaire-short form, and the Interpersonal Acceptance-Rejection Loneliness Scale. Adults' remembrances of maternal and paternal rejection in childhood significantly and independently predicted feelings of loneliness but remembered paternal rejection was more strongly related to these feelings than were remembrances of maternal rejection. Psychological maladjustment fully mediated the effect of remembered maternal rejection but only partially mediated the effect of remembered paternal rejection on loneliness. There were no significant differences in these results across the five countries or genders. Overall, the results suggest that adults' remembrances of parental rejection in childhood—along with the theoretically expected development of psychological maladjustment—are likely to be associated panculturally with the experience of loneliness in adulthood.