Flicker thresholds as determined by a modified conditioned suppression procedure,

Critical flicker fusion frequencies were determined as a function of stimulus intensity for three White Carneaux pigeons using a modified conditioned suppression paradigm as a threshold procedure. Critical frequencies ranged from 6 cps for the lowest intensity of 0.0014 ml to 77 cps for the maximum intensity of 41.86 ml.     

Sex differences in parental directives to young children

This study investigated how children learn sex-associated strategies for requesting action. We compared the directives which mothers and fathers address to their 2 1/2- to 5-year-old children. Ten children, 5 boys and 5 girls, engaged separately with each parent in a construction task. Fathers produced more directives than mothers and tended to phrase them as imperatives (e.g., Put the screw in) or as highly indirect “hints” (e.g., The wheel's going to fall off) more often than mothers, who relied more on relatively transparent indirect forms (e.g., Can you put the screw in?). There were no differences in the form of the directives addressed to girls and boys, nor were there any cross-sex effects. Parental modeling, rather than differential socialization of girls and boys, appears to be the mechanism by which children learn to request action in sex-associated ways.     

The effect of a commercial game on children's block design scores on the WISC-R IQ test

Two experiments investigated the extent to which 10-year old children's scores on the WISC-R Block Design subtest were affected by prior experience with a specific commercial game that involved blocks and matching patterns. Experiment 1 found that 12 10-year old children who happened to have experience with the particular commercial game scored approximately three scaled score points higher on the WISC-R Block Design subtest than 24 matched children without game experience. In Experiment 2, 24 children who did not have prior experience with this particular commercial game were randomly assigned either to a Game condition (involving two 15-minute sessions with the game) or to a No-Game condition (which involved no further game experience). Children in the Game condition subsequently increased their WISC-R Block Design scores more than children in the No-Game condition. Taken together, the experiments indicate that relatively brief interactions with a commercial game can cause a significant improvement in children's performance on an IQ subtest.     

Parents' reactions to finding out that their children have average or above average IQ scores

The parents of 41 children who had been given an individually-administered intelligence test were contacted approximately 19 months after testing. The sample included 20 parents who had learned their child had an Average IQ (children'smeanIQ = 100.8) and 21 parents who had learned their child had an Above Average IQ (children'smeanIQ = 130.0). Parents of Average IQ children were less accurate in their memory of test results, and they and their children experienced fewer positive consequences from IQ testing than Above Average children and their parents. Children with Above Average IQ experienced extremely low frequencies of sibling rivalry, conceit or pressure, and they and their parents experienced increased pride and/or self-confidence as a result of the IQ testing. The results as a whole suggest that parents of Average IQ children may need more psychological support during the parent informing process than parents of Above Average IQ children.     

Book reviews

Laughing Gods, Weeping Virgins: Laughter in the History of Religion. Ingvild Sæud Gilhus, 1997 London, New York: Routledge 173 pp., £45.00 (hb) ISBN 0–415–16197–5

Questioning the Secular State: The Worldwide Resurgence of Religion in Politics. David Westerlund, ed., 1996 London: Hurst & Companyμ xii +428 pp., £14.95 ISBN 1–85065–241–4 (pb.)

Religion and Resistance Politics in South Africa. Lyn S. Graybill, 1996 Westport, Connecticut: Praeger/Greenwood Press 157 pp., £44.95 (hb) ISBN 0–275–95141–3

Engaged Buddhism: Buddhist Liberation Movements in Asia Christopher S. Queen & Sallie B. King, eds., 1996 Albany, NY: State University of New York Press 446 pp., US$24.95 ISBN 0–7914–2844–3

Religious Pluralism and Christian Truth. Joseph S. O'Leary, 1996 Edinburgh: Edinburgh University Press xiii + 269 pp., £45.00 ISBN 0–7486–0727–7

Church, State and Religious Minorities. Tariq Modood, ed., 1997 London: Policy Studies Institute 96 pp., £10.95 ISBN 0 85374 724 5

The Coming Deliverer: Millennial Themes in World Religions. Fiona Bowie, ed., 1997 Cardiff: University of Wales Press 264 pp., £9.95 (pb) ISBN 0–7083–1338–8

Zoroastrians in Britain. John R. Hinnells, 1996 Oxford, Clarendon Press xiv + 336 pp., £42.00 (hb) ISBN 0–19–826193–4

From the Holy Mountain: A Journey in the Shadow of Byzantium. William Dalrymple, 1997 London, Harper Collins 484 pp., illustrated, £18.00 ISBN 0–0025–5509–3

Jerusalem Today: What Future for the Peace Process?. Ghada Karmi, edv 1996 Reading: Ithaca Press xix +191 pp., £25.00 ISBN 0–86372–204–0

Judaism Since Gender. Miriam Peskowitz & Laura Levitt, eds., 1997 London: Routledge 229 pp., £14.99 (pb), £45.00 (hb) ISBN 0–415–91461–2 (pb), ISBN 0–415–91460–4 (hb)

Muslim Communities in the New Europe. Gerd Nonneman, Tim Niblock & Bogdan Szajkowski, eds., 1996 Reading: Ithaca Press 346 pp, £35.00 (hb) ISBN 0–86372–192–3

Congregation and Community. Nancy Tatom Ammerman, 1997 New Brunswick: Rutgers University Press xvi + 434 pp., US$55.00 (hb), US$24.00 (pb) ISBN 0–81352–334–6 (hb), ISBN 0–81352–335–4 (pb)

Against the Stream: The Adoption of Traditional Christian Faiths by Young Adults. Richard P. Cimino, 1997 Lanham, Maryland: University Press of America & Religion Watch 128 pp., US$46,00 (hb), US$26,00 (pb) ISBN 0–7618–0574–5 (hb), ISBN 0–7618–0575–3 (pb)

Polygamous Families in Contemporary Society. Irwin Altman & Joseph Ginat, 1996 Cambridge: Cambridge University Press xv + 512 pp., £55.00 (hb), £19.95 (pb) ISBN 0–521–56169–8 (hb), 0–521–56731–9 (pb)

Fertility, Class and Gender in Britain: 1860–1940. Simon Szreter, 1996 Cambridge: Cambridge University Press 710 pp., £50.00 ISBN 0–521–34343–7

Implicit Religion in Contemporary Society. Edward I. Bailey, 1997 Kampen, Netherlands: Kok Pharos Publishing House; Weinheim, Germany: Deutscher Studien Verlag 302 pp., Dfl.69.00, £23.00 ISBN (Kok) 90–390–0581–8; ISBN (DSV) 3–89271–694–3

Geography of Religions in Russia. Alexei D. Krindatch, 1996 Decatur, Georgia: Glenmary Research Center 72 pp., 47 maps, US$29.95 (Paper/Spiral Bound) ISBN 0–914422–25–1

Believing in Australia: A Cultural History of Religions". Hilary M. Carey, 1996 St Leonards, N.S.W.: Allen & Unwin xviii + 270p., £16.95 (pb) ISBN 1–86373–950–5

Icelandic Spiritualism: Mediumship and Modernity in Iceland. William H. Swatos, jr. & Loftur Reímar Gíssurarson, 1997 New Brunswick: Transaction Publishers 269 pp., US$32.95 (hb) ISBN 1–56000–273–5

The Channeling Zone: American Spirituality in an Anxious Age. Michael F. Brown, 1997 Cambridge, Massachusetts & London, England: Harvard University Press 214 pp., £14.50 (hb) ISBN 0–674–10882–5

Listening People, Speaking Earth: Contemporary Paganism. Graham Harvey, 1997 London: Hurst & Co. 250 pp., £27.50 (hb), £9.95 (pb) ISBN 1–85065–271–6 (hb), ISBN 1–85065–272–4 (pb)     

Inductive generalization in 9- and 11-month-olds

Using little models, we showed 9- and 11-month-old infants events in which animal or vehicle properties were demonstrated, such as a dog drinking from a cup or a car giving a ride. The infants were tested on imitation of these properties on the same exemplars as used for the modeling, on generalization to other exemplars from the same domain, and on generalization to exemplars from an inappropriate domain. Infants generalized the properties broadly to both typical and novel exemplars within the appropriate domain, and rarely to exemplars from the inappropriate domain. It is concluded that at least by 9 months infants have formed global concepts of animals and vehicles that control the way infants learn the characteristic properties of these classes.