Eating behavior in obese BED, obese non-BED, and non-obese control participants: A naturalistic study

Laboratory studies have shown considerable differences between the eating behavior, particularly binge eating behavior, of participants with and without binge eating disorder (BED). However, these findings were not replicated in two field experiments employing ecological momentary assessment (EMA) in which obese BED and obese non-BED participants reported comparable binge eating behavior. In the current study, we examined differences in binge eating with an innovative assessment scheme employing both EMA and a standardized computer-based dietary recall program to avoid some of the limitations of past laboratory and field research. Obese BED, obese non-BED, and non-obese control participants reported significant differences in eating patterns, loss of control, overeating, and binge eating behavior. Of particular importance was the finding that BED participants engaged in more overeating and more binge eating episodes than non-BED participants. These findings suggest that the use of EMA in combination with dietary recall may be a relatively objective and useful approach to assessing binge eating behavior. The findings further suggest that individuals with BED are observably different from those without the disorder, which may have implications for eating disorder diagnoses in DSM-V.     

Minimally Sufficient Research

ABSTRACT— Psychology would be improved if researchers stopped using complicated designs, procedures, and statistical analyses for the sole reason that they are able to do so. The present article reviews some of the classic studies in psychology, all of which are breathtakingly simple. The notion of minimally sufficient research is suggested as an ideal worth following. More generally, questions should dictate research methods and statistical analyses, not vice versa.     

Social psychophysics: Using psychophysics to answer “social” questions with PsychoPro

Complex social stimuli (like faces) can be studied using a methodology typically reserved for studying lights, tones, and colors: psychophysics. Given that psychophysics examines how humans detect and respond to stimuli in their environment, we can extend that to the study of how humans detect social stimuli in the environment. Using psychophysical methodology to answer “social” questions provides another dimension of experimental manipulation and control to the diverse array of methodologies already used by social psychologists. In this article, we review psychophysical methodology, provide a rationale for social psychophysics, describe an easy-touse software program called PsychoPro, for collecting psychophysical data, and present data collected using this program to examine racial thresholds that provide evidence for a cognitive gating mechanism for racial information that impacts face processing (MacLin & MacLin, 2007, in press; MacLin, MacLin, & Peterson, 2008).     

Relations of Eating Disorder Symptomology with Perceptions of Pressures from Mother, Peers, and Media in Adolescent Girls and Boys

This study examined the relations of adolescents’ perceptions of pressures from the media, their mothers, and their peers with the development of eating disorder symptomology. Participants were 333 male and female adolescents in high school grades 10–12 from a suburban area of the Midwestern US. During the school day, students completed Likert-type scales of perceived pressures and eating disorder symptomology. Canonical correlations showed that students who perceived greater pressures across all three environmental contexts also reported more eating disorder symptomology. However, the patterns of relations between the perceived pressures and specific eating disorder symptoms differed by gender. Implications for future research and prevention programs are discussed.     

Midlife women's generativity and authoritarianism: marriage, motherhood, and 10 years of aging

Generativity and authoritarianism assessed at age 52 were correlated with criterion variables assessed at age 62 in a sample of well-educated women (N = 81). Results indicated that generativity predicted positive personality characteristics, satisfaction with marriage and motherhood, and successful aging. By contrast, although authoritarianism is linked in the literature to endorsing traditional gender roles, authoritarianism was uncorrelated in the current study with happiness about marriage and was negatively related to perceptions of motherhood. Furthermore, authoritarianism was correlated with neuroticism later in life. These data suggest that midlife authoritarianism may be problematic as women transition from their 50s to their 60s. Midlife generativity, in contrast, seems to offer one path to life satisfaction.     

Age differences in recognition of emotion in lexical stimuli and facial expressions

Age differences in emotion recognition from lexical stimuli and facial expressions were examined in a cross-sectional sample of adults aged 18 to 85 (N = 357). Emotion-specific response biases differed by age: Older adults were disproportionately more likely to incorrectly label lexical stimuli as happiness, sadness, and surprise and to incorrectly label facial stimuli as disgust and fear. After these biases were controlled, findings suggested that older adults were less accurate at identifying emotions than were young adults, but the pattern differed across emotions and task types. The lexical task showed stronger age differences than the facial task, and for lexical stimuli, age groups differed in accuracy for all emotional states except fear. For facial stimuli, in contrast, age groups differed only in accuracy for anger, disgust, fear, and happiness. Implications for age-related changes in different types of emotional processing are discussed.     

The roles of encoding,retrieval, and awareness

In the experiment reported here, we examined the processes by which expected (probable) changes are detected more frequently than are unexpected (improbable) changes (the change probability effect; Beck, Angelone, & Levin, 2004). The change probability effect may be caused by a bias toward probable changes during encoding of the prechange aspect, during retrieval of the prechange aspect, or during activation of an explicit response to the change. Participants performed a change detection task for probable and improbable changes while their eye movements were tracked. Change detection performance was superior for probable changes, but long-term memory performance was equivalent for both probable and improbable changes. Therefore, although both probable and improbable prechange aspects were encoded, probable prechange aspects were more likely to be retrieved during change detection. Implicit change detection was also greater for probable changes than for improbable changes, suggesting that the change probability effect is the result of a bias during the retrieval and comparison stage of change detection. The stimuli used in the change detection task may be downloaded from www.psychonomic.org/archive.     

Celebrating a common finding: Riding’s CSA test is unreliable

This paper is a reply to Redmond and colleagues’ brief report that argues we (Peterson et al., 2003a) were not the first to establish the unreliability of the computerised cognitive styles analysis (CSA) test because we used a copy of the test rather than the original. We refute this suggestion and argue that we have already defended our approach to testing the CSA’s reliability (Peterson et al., 2003b) and that our method is entirely appropriate and transparent. Rather than argue over who was the first to test the CSA’s reliability, we believe we should celebrate the fact that we both found the same result, regardless of the method used.     

Integration of impulsivity and positive mood to predict risky behavior: development and validation of a measure of positive urgency

In 3 studies, the authors developed and began to validate a measure of the propensity to act rashly in response to positive affective states (positive urgency). In Study 1, they developed a content-valid 14-item scale, showed that the measure was unidimensional, and showed that positive urgency was distinct from impulsivity-like constructs identified in 2 models of impulsive behavior. In Study 2, they showed that positive urgency explained variance in risky behavior not explained by measures of other impulsivity-like constructs, differentially explained positive mood-based risky behavior, differentiated individuals at risk for problem gambling from those not at risk, and interacted with drinking motives and expectancies as predicted to explain problem drinking behavior. In Study 3, they confirmed the hypothesis that positive urgency differentiated alcoholics from both eating-disordered and control individuals.     

Theology: Reduction or Autonomy?

Issues of the nature and task of theology remain important to the science-theology dialogue. This paper lays out a framework for understanding the nature of theology in relation to the other sciences. In particular, I argue that the primary question remains one of autonomy and reduction. If theology is a genuine academic discipline, then it should be an autonomous field with its own subject matter and norms. Wolfhart Pannenberg argues that theology is the science of God, but I suggest that theology be more broadly understood as the science of meaning. If we recognize this, the modes of interaction between theology and the other sciences becomes clearer.