Goal-setting in diabetes self-management: A systematic review and meta-analysis examining content and effectiveness of goal-setting interventions

Background: Goal-setting is recommended and widely used within diabetes self-management programmes. However, empirical evidence around its effectiveness lacks clarity. This review aims to evaluate the effectiveness of goal-setting interventions on diabetes outcomes and to determine which behaviour change techniques (BCTs) are frequently used within these interventions.

Methods: A systematic search identified 14 studies, describing 12 interventions targeting diabetic-control which incorporated goal-setting as the main intervention strategy. Study characteristics, outcome measures and effect sizes of the included studies were extracted and checked by two authors. The BCT taxonomy v1 was used to identify intervention content. Meta-analyses were conducted to assess intervention effects on the primary outcome of average blood glucose levels (HbA1c) and on body-weight. Psycho-social and behavioural outcomes were summarised in narrative syntheses.

Results: Significant post-intervention improvements in HbA1C were found (?.22, 95% CI, ?.40, ?.04) across studies. No other main effects were identified. The BCT ‘goal-setting (behaviour)’ was most frequently implemented and was identified in 84% of the interventions.

Conclusions: Goal-setting interventions appear to be associated with reduced HbA1C levels. However, the low numbers of studies identified and the risk biases across studies suggest more research is needed to further explore goal-setting BCTs in diabetes self-management.     

Facts and Possibilities: A Model‐Based Theory of Sentential Reasoning

This article presents a fundamental advance in the theory of mental models as an explanation of reasoning about facts, possibilities, and probabilities. It postulates that the meanings of compound assertions, such as conditionals (if) and disjunctions (or), unlike those in logic, refer to conjunctions of epistemic possibilities that hold in default of information to the contrary. Various factors such as general knowledge can modulate these interpretations. New information can always override sentential inferences; that is, reasoning in daily life is defeasible (or nonmonotonic). The theory is a dual process one: It distinguishes between intuitive inferences (based on system 1) and deliberative inferences (based on system 2). The article describes a computer implementation of the theory, including its two systems of reasoning, and it shows how the program simulates crucial predictions that evidence corroborates. It concludes with a discussion of how the theory contrasts with those based on logic or on probabilities.     

Ostracism Reduces Reliance on Poor Advice from Others during Decision Making

Decision making is rarely context‐free, and often, both social information and non‐social information are weighed into one's decisions. Incorporating information into a decision can be influenced by previous experiences. Ostracism has extensive effects, including taxing cognitive resources and increasing social monitoring. In decision making situations, individuals are often faced with both objective and social information and must choose which information to include or filter out. How will ostracism affect the reliance on objective and social information during decision making? Participants (N = 245) in Experiment 1 were randomly assigned to be included or ostracized in a standardized, group task. They then performed a dynamic decision making task that involved the presentation of either non‐social (i.e. biased reward feedback) or social (i.e., poor advice from a previous participant) misleading information. In Experiment 2, participants (N = 105) completed either the ostracism non‐social condition or social misleading information condition with explicit instructions stating that the advice given was from an individual who did not partake in the group task. Ostracized individuals relied more on non‐social misleading information and performed worse than included individuals. However, ostracized individuals discounted misleading social information and outperformed included individuals. Results of Experiment 2 replicated the findings of Experiment 1. Across two experiments, ostracized individuals were more critical of advice from others, both individuals who may have ostracized them and unrelated individuals. In other words, compared with included individuals, ostracized individuals underweighted advice from another individual but overweighed non‐social information during decision making. We conclude that when deceptive objective information is present, ostracism results in disadvantageous decision making. Copyright © 2015 John Wiley & Sons, Ltd.     

Childhood Overweight and Obesity: Maternal and Family Factors

Treatment programs for childhood overweight and obesity have highlighted the importance of the family in treatment. Considering this, it is surprising that few studies have examined the role of family factors in the development of childhood overweight and obesity. The objective of this study was to examine which family and maternal factors predict increases in weight in boys and girls during middle to late childhood. This study used longitudinal data from the childhood growth and development (GAD) Study. The GAD Study involved 286 healthy weight, overweight and obese children, aged 6–13 years at baseline, who completed baseline, 1-year follow-up and 2-year follow-up assessments. Overweight/obese children were recruited from clinical and community settings. A broad range of maternal and family factors were assessed. Linear mixed models were used to identify which factors predicted child Body Mass Index (BMI) z-scores over time. For community-based children, maternal BMI and single-parent family structure were significant longitudinal predictors of child BMI z-scores. For the clinical participants, low family income was the only significant multivariate predictor of child BMI z-scores. The strong association between child BMI, maternal BMI and family structure confirms the need to target prevention and intervention efforts for childhood overweight and obesity towards families with overweight parents, particularly single-parent families.     

Dopamine,depressive symptoms,and decision-making: the relationship between spontaneous eye blink rate and depressive symptoms predicts Iowa Gambling Task performance

Depressive symptomatology has been associated with alterations in decision-making, although conclusions have been mixed, with depressed individuals showing impairments in some contexts but advantages in others. The dopaminergic system may link depressive symptoms with decision-making performance. We assessed the role of striatal dopamine D₂ receptor density, using spontaneous eye blink rates, in moderating the relationship between depressive symptoms and decision-making performance in a large undergraduate sample that had not been screened for mental illness (N?=?104). The regression results revealed that eye blink rate moderated the relationship between depressive symptoms and advantageous decisions on the Iowa Gambling Task, in which individuals with more depressive symptomatology and high blink rates (higher striatal dopamine D₂ receptor density) performed better on the task. Our computational modeling results demonstrated that depressive symptoms alone were associated with enhanced loss-aversive behavior, whereas individuals with high blink rates and elevated depressive symptoms tended to persevere in selecting options that led to net gains (avoiding options with net losses). These findings suggest that variation in striatal dopamine D₂ receptor availability in individuals with depressive symptoms may contribute to differences in decision-making behavior.     

Depression and power in mariage

To investigate the association between depression and power within marriage, fourteen couples in which the female partner was depressed were compared with fourteen non-depressed couples on a range of variables which assessed power bases, processes and outcomes, three domains identified in Cromwell and Olson's (1975) analysis of marital power. Compared with non-depressed couples, those containing a depressed female partner had distinctive profiles, and a subset of the characteristics of these couples was uniquely associated with depression and quite distinct from the couples' levels of marital satisfaction. The results are discussed in terms of theories of power in relationships and are seen to highlight the importance of including marital therapy as part of a treatment package for married women with depression.     

Book reviews

Schulkin, J. (1991). Sodium hunger: The search for a salty taste. Cambridge: Cambridge University Press. Pp. 192. ISBN 0-521-35368-8. £30.00 (hardback).

Heiligenberg, W.F. (1991). Neural nets in electric fish. Cambridge, MA: MIT Press (A Bradford Book). Pp. 179. ISBN 0-262-08203-9. £33.75 (hardback).

Donald, M. (1991). Origins of the modern mind: Three stages in the evolution of culture and cognition. Cambrdige, MA: Harvard University Press. Pp. 413. ISBN 0-674-64483-2. £22.25 (hardback).     

Autobiographical memory and perceptual learning: A developmental study using picture recognition,naming latency,and perceptual identification

Memory &; Cognition - In this paper, we report four experiments aimed at extending the distinction between recognition memory and perceptual memory introduced by Jacoby and Dallas (1981). In...     

Book Reviews

Religions sans Frontières? Present and Future Trends of Migration, Culture and Communication Roberto Cipriani, ed., for the Research Committee “Sociology of Religion”; of the International Sociological Association, Rome, Presidenza del Consiglio del Ministri, Dipartimento Per L'Informazione e L'Editoria, 1994 384 pp. no ISBN on book

Worldviews in Transition: An Investigation into the New Age Movement in South Africa Chrissie Steyn, 1994 Pretoria: University of South Africa (Studia Originalia 22) xvi + 367 pp., R79.00 or £14.86 (+ p&p) ISBN 0–86981–845–7

Women and Missions: Past and Present. Anthropological and Historical Perceptions Fiona Bowie, Deborah Kirkwood & Shirley Ardener, eds, 1995 Berg: Providence/Oxford xx + 279 pp., plates, £14.95 ISBN 9–780854968725

Syncretism/Anti‐Syncretism: The Politics of Religious Synthesis Charles Stewart & Rosalind Shaw, eds., 1994 London: Routledge 215 pp., £37.50 (hb), £12.99 (pb) ISBN 0–415–11117‐X.

Beyond the Basilica: Christians and Muslims in Nazareth Chad F. Emmett, 1995 Chicago and London: University of Chicago Press xix + 303 pp., £17.50 US$22.00 pb, ISBN 0–226–20711–0

Islamic Britain: Religion, Politics and Jolentity among British Muslims Phillip Lewis, 1994 London: I. B. Tauris & Co. 250 pp., £11.95 ISBN 1–85043–861–7

Religion & Revelation: A Theology of Revelation in the World's Religions Keith Ward, 1994 Oxford: Clarendon Press 350 pp., £40 hb, £13.95 pb ISBN 0–19–826466–6 & 826375–9

Religiöser Pluralismus oder christliches Abendland? Herausforderung an Kirche und Gesellschaft Reinhart Hummel, 1994 Darmstadt: Wissenschaftliche Buchgesellschaft 223 pp., DM39.80, FR40.80, ÖS311.00 ISBN 3–534–11717–4

A Short History of Judaism Lavinia & Dan Cohn‐Sherbok, 1994 Oxford: Oneworld Publications viii +148 pp., £5.95 ISBN 1–85168–069–1

Unforgotten Fragments Beryl Pogson & Others, compiled by Lewis Creed, 1994 York: Quacks Books 352 pp., £15.95 ISBN 0–948333–29–4

Centenary Fragments Beryl Pogson & Others, compiled by Lewis Creed, 1994 York: Quacks Books 379 pp., £15.95 ISBN 0–948333–36–7

A Plain Guide to Bible Theology: A Realistic Approach L. G. Hardinge, 1993 Swansea: Abertawe Desktop (OR: L G Publication, 1994) 217 pp., £10.50 (pb) ISBN 0–9524013