The single interval adjustment matrix (SIAM) yes–no task: an empirical assessment using auditory and gustatory stimuli

The SIAM yes-no task is an efficient bias-free adaptive procedure for estimating absolute thresholds, though it arguably requires further evaluation prior to its adoption into mainstream psychological research. We report two experiments undertaken in the auditory and gustatory modalities designed to assess the accuracy and efficiency of the SIAM method. In the first experiment, estimates of absolute thresholds for 1000-Hz tones obtained using a two-alternative forced choice adaptive procedure were compared to those obtained using both the SIAM yes-no task and a modification of the SIAM task incorporating the method of free response, the SIAM-rapid. In Experiment 2, we compared absolute thresholds for sucrose in solution obtained with either a two-alternative forced choice adaptive procedure or the SIAM yes-no task. Both experiments demonstrated the efficiency and validity of the SIAM approach, with SIAM thresholds proving to be equivalent to those obtained in the two-alternative forced choice tasks and to those reported in the literature.     

On the perpetuation of ignorance: system dependence, system justification, and the motivated avoidance of sociopolitical information

How do people cope when they feel uninformed or unable to understand important social issues, such as the environment, energy concerns, or the economy? Do they seek out information, or do they simply ignore the threatening issue at hand? One would intuitively expect that a lack of knowledge would motivate an increased, unbiased search for information, thereby facilitating participation and engagement in these issues-especially when they are consequential, pressing, and self-relevant. However, there appears to be a discrepancy between the importance/self-relevance of social issues and people's willingness to engage with and learn about them. Leveraging the literature on system justification theory (Jost & Banaji, 1994), the authors hypothesized that, rather than motivating an increased search for information, a lack of knowledge about a specific sociopolitical issue will (a) foster feelings of dependence on the government, which will (b) increase system justification and government trust, which will (c) increase desires to avoid learning about the relevant issue when information is negative or when information valence is unknown. In other words, the authors suggest that ignorance-as a function of the system justifying tendencies it may activate-may, ironically, breed more ignorance. In the contexts of energy, environmental, and economic issues, the authors present 5 studies that (a) provide evidence for this specific psychological chain (i.e., ignorance about an issue → dependence → government trust → avoidance of information about that issue); (b) shed light on the role of threat and motivation in driving the second and third links in this chain; and (c) illustrate the unfortunate consequences of this process for individual action in those contexts that may need it most.     

The Effect of Maternal Depressed Mood on Infant Emotional Reaction in a Surprise‐Eliciting Situation

The purpose of this study is to examine the claim that an infant's ability to respond appropriately to an emotional situation varies according to the emotional state of the mother. Surprise expressions in mother and child were examined both in terms of paralinguistic aspects of surprise vocalizations as well as facial expressions. Seventy‐two infants and their mothers (mean age=8 months, range=5–11 months) were video‐ and audiotaped in their homes. Half of the infants, matched for age and gender, had mothers who reported depressed mood. Infants of mothers with depressed mood showed significantly fewer components of facial expressions of surprise compared with infants of nondepressed mothers. Mothers with depressed mood exclaimed surprise with a significantly lower pitch (mean F₀=386.13 Hz ) compared to nondepressed mothers (mean F₀=438.10 Hz ). Furthermore, mothers with depressed mood showed fewer associations between elements of emotional expression than the nondepressed group. Infants' expressions of surprise are influenced by maternal mood, resulting in reduced expression of the emotion in infants of mothers with depressed mood. These results are discussed in terms of coordination of vocal parameters in mother–infant dyadic interaction.     

Similarity effects in face recognition

Three experiments are described which examine the effects of similarity on face recognition using a new application of hierarchical clustering analysis (HCS). Experiments I and II employed a within-groups design where subjects attempted to recognize targets among decoys from the same and different cluster to the target. Common cluster membership accounted for 72% and 84%, respectively, of all false alarms in the two experiments. Absolute error rates were affected by the number of targets actually present in the array and the style of the instructions given to subjects but were not influenced by whether successive or simultaneous test presentation was employed. Experiment III used a between-subject design where targets were embedded in arrays composed from same or different clusters. False alarm rates were significantly higher for the same cluster condition, but hit rates were unaffected by recognition context. The significance of these findings for theories of face identification is discussed.     

In search of personality traits: A multimethod analysis of naturally occurring prosocial and dominance behavior

Naturally occurring prosocial and dominance behaviors were observed via multiple methods in four groups of adolescents. Individuals varied considerably in their frequency of prosocial and dominance behaviors, regardless of the method employed. These interindividual differences were maintained across situations and over time. The data are consistent with a trait conceptualization of dominance and prosocial behavior. The strength of the present findings suggest that personality researchers need to employ research strategies which extensively observe individuals in the contexts in which they live.     

Teaching psychological knowledge and skills to family physicians

Psychological problems (e.g., anxiety, depression, substance abuse) are prevalent in primary care medical settings. Family physicians (FPs) treat more patients than any other primary care medical specialists. Thus, FPs can play an extremely important role in providing psychological services to their patients. In contrast to other specialists (e.g., internists, obstetricians), FPs are required to complete behavioral science training in their residencies. In this paper, we describe standard undergraduate, graduate, and postgraduate training of FPs. We present our unique program for teaching psychological principles and skills to family practice residents at the University of Kansas Medical Center. And finally, we introduce an instrument, the Interview Rating Scale (IRS), for evaluating the interviewing skills of physicians and residents.     

Book reviews

Religion and Globalisation. Peter Beyer, 1994 London: Sage Publications 250 pp., £12.95 pb, £37.50 hb ISBN 0–8039–8917–2

The Religious Culture of India: Power, Love and Wisdom. Friedhelm Hardy, 1994 Cambridge Studies in Religious Traditions 4, Cambridge University Press xiii + 613 pp. £55.00, US$74.95 ISBN 0–521–44181–1

Judaism and Other Faiths. Dan Cohn‐Sherbok, 1994 Basingstoke: Macmillan Press ix + 186 pp., £40.00 hb ISBN 0–312–10384–0.

Women in Religion Jean Holm with John Bowker, eds., 1994 London and New York: Pinter Publishers 181 pp., £29.50 hb, £9.99 pb ISBN 1–85567–108–5 hb, ISBN 1–85567–109–3 pb

Attitudes to Nature. Jean Holm (ed.) with John Bowker, 1994 London and New York: Pinter Publishers 172 pp., £23.50 hb, £9.99 pb ISBN 1–85567–092–5 hb, ISBN 1–85567–093–3 pb

Sacred Writings. Jean Holm (ed.) with John Bowker, 1994 London and New York: Pinter Publications 201 pp., £29.50 hb, £9.99 pb ISBN 1–85567–106–9 hb; 1–85567–107–7 pb

The Gospel of Buddha. Paul Carus, 1994 Oxford: Oneworld Publications 306 pp., £6.95 ISBN 1–85168–026–8

The New Religious Order: The Passionists and the Option for the Poor. James Sweeney CP, 1994 London: Bellew Publishing 240 pp., £35.00 ISBN 1–85725–105–9

Religions in the UK: A Multi‐Faith Directory. Paul Weller (ed), researched by Rachelle Castle and Paul Weller, 1993 Mickleover, Derby: University of Derby, in association with The Inter Faith Network for the United Kingdom 651 pp., £25.00 (incl. p&p) ISBN 0–901437–06–9