Film-induced negative affect triggers overeating in restrained eaters

We tested the effects of film-induced negative affect (i.e., exposure to a frightening film) in 60 women classified as either restrained or unrestrained eaters on the basis of their responses to the Revised Restraint Scale (Herman & Polivy, 1980). Exposure to the frightening film, in contrast to a neutral film, was associated with increases in anxiety, sadness, and anger. High restraint subjects exposed to the frightening film ate more than did equally restrained subjects exposed to a neutral film or low restraint subjects exposed to either film. Thus, negative affect triggered overeating among restrained eaters. Although unrestrained eaters exposed to the frightening film ate less than those who viewed the neutral film, this difference was not statistically significant. These results suggest that negative affect may prompt overeating in persons who attempt to restrict their caloric intake.     

Frontal brain asymmetry in restrained eaters

It is well known that the eating patterns that restrain chronic dieters (restrained eaters) can be disinhibited by anxiety, which in turn has been associated with relative right frontal brain activity in independent electroencephalographic (EEG) studies. Combining these two lines of evidence, the authors tested the hypothesis that chronic restrained eating is associated with relative right frontal asymmetry. Resting anterior brain asymmetry and self-reported measures of anxiety and depression were collected in 23 restrained and 32 unrestrained eaters. As hypothesized, groups differed in tonic frontal activity, with restrained eaters showing more relative right frontal activity. Furthermore, relative right frontal activity was associated with greater self-reported restraint. Right-sided prefrontal asymmetry may thus represent a diathesis associated with increased vulnerability toward restrained eating.     

Disinhibited eating by resourceful restrained eaters

Restrained eaters who reported consistent use of a variety of self-control skills were expected to avoid disinhibited eating in a high-risk situation better than were restrained eaters, who reportedly used fewer self-control skills. Eighty women were selected as subjects on the basis of their scores on the Revised Restraint Scale and the Self-Control Schedule. A 2 x 2 design was used: Restraint (high, low) x Self-Control (high, low). Subjects participated in the usual "preload + taste-test" restraint paradigm. Restrained eaters who reported high self-control skills disinhibited their eating significantly more (not less, as expected) than all other groups.     

Biased perception of overeating in bulimia nervosa and compulsive binge eaters

This study investigated the relationship between caloric intake and perceived overeating in subjects with and without a history of problematic binge eating. Eighty subjects (20 in four groups: bulimia nervosa, compulsive binge eaters, obese, and normal controls) self-monitored eating for 2 weeks. The regression slopes for self-reported overeating as a function of caloric intake were contrasted across the four groups. At higher caloric levels, bulimics and binge eaters reported overeating at a significantly higher rate compared to obese and normal control groups. These data were interpreted as a type of cognitive bias whereby subjects with a history of binge eating distorted their perception of overeating at progressively higher caloric levels. It was proposed that excessive concern about eating and dieting may cause such cognitive biases. A parallel was drawn with body image distortion, which appears to be associated with overconcem with body size and shape.     

Body size perception and body satisfaction in restrained and unrestrained eaters.

In 21 restrained and 20 unrestrained eaters body size perception was measured using the video distortion technique (VDT), the image marking procedure (IMP) and the kinesthetic size estimating apparatus (KSEA). Body satisfaction was assessed by questionnaires (Body Shape Questionnaire, Dieting scale of the Eating Attitudes Test). Restrained eaters showed no systematic over- or underestimation of the body size but less perceptual accuracy (in VDT and KSEA). Furthermore, they were clearly more dissatisfied with their bodies than unrestrained eaters. Both findings were unrelated to each other. In both groups depressive mood or thoughts seemed to be associated with body dissatisfaction but not with body size misperception. Objective body measures (body mass index, body fat content) were not related to either body size perception or body satisfaction. The findings suggest that a perceptual uncertainty in regard to body size (either for visual or for somatosensory aspects) has already developed in restrained eaters, which may constitute a predisposition for more overt forms of body size misperception as found in eating disorder patients.     

Weight criticalness of others in restrained and unrestrained eaters

This study examined whether restrained eaters are more critical of others' body weight than unrestrained eaters. Fifty-seven female undergraduates were shown photos of a female subject described as either 18-years old (peer) or 30-years old (non-peer); they then completed measures assessing direct and indirect weight criticalness. To measure direct criticalness, participants indicated the degree to which they felt each target was too thin or too heavy. To measure indirect criticalness, participants reported how much they thought each target weighed and how much she should ideally weigh; estimated weight was then subtracted from ideal weight. Findings revealed the restrained eaters were more indirectly critical of the peer target. Specifically, the restrained eaters thought the peer target should weigh 9.42 lbs less than her current weight, whereas the unrestrained eaters reported she should weigh 3.84 lbs less. Results suggest that restrained eaters are more critical of their peers' body weight than unrestrained eaters.     

Emotional arousal and affiliation

Schachter's 1959 emotional comparison theory was criticized by Sarnoff and Zimbardo 1961, who demonstrated that there are certain kinds of emotional arousal in which isolation is preferred. The generality of the theory was restricted and the direction of affiliative behaviors in different emotional-arousal conditions was questioned. In an attempt to reconcile the opposing findings, affiliative reactions to general and specific emotional arousal were compared. General arousal, anxiety state, was experimentally induced by confronting subjects with unspecified and cognitively unclear threat which allowed undetermined modes of personal interpretations. Specific arousal was induced by replicating Sarnoff and Zimbardo's experimental procedures. As predicted, general arousal increased affiliation while specific arousal decreased it. Birth order failed to interact significantly with any variables, and did not affect affiliation.Based on present and previous findings, some generalizations about emotional comparison and affiliation were offered, and problems of studying underlying motivations for affiliation were discussed.     

Attention and memory biases toward body-related images among restrained eaters

This study examined biases in attention and memory toward body-related images among restrained (n = 31) and unrestrained (n = 29) eaters. Attentional allocation to images of thin and overweight bodies during a visual search task was measured by tracking participants’ eyegaze. This task was followed by a recognition test assessing participants’ memory for those images. Restrained and unrestrained eaters allocated more attention to body-related images than to control images, but there was no difference in attentional allocation between the two groups. Restrained eaters showed better recognition of body-related images that they had previously seen during the visual search task. Finally, increased attention was associated with better recognition of body-related images for both restrained and unrestrained eaters, but restrained eaters had better overall recognition regardless of the level of attention. These findings suggest that restrained eaters may have more organized strategies for processing body-related information than do unrestrained eaters.     

Nonregulation of food intake in restrained,emotional, and external eaters

In the present study, regulation of ice cream intake after a preload was examined in 20 high and 20 low scorers (median split) on subscales of the Restraint Scale (RS) (Herman, Polivy, Pliner, Threshold, & Munic, 1978) and the Dutch Eating Behavior Questionnaire (DEBQ) (van Strien, 1986). For each subscale it was hypothesized that low scorers would regulate their ice cream intake. High scorers on disinhibitive scales (i.e., the RS and the DEBQ-emotional and -external subscales) were expected to counterregulate after a preload. In contrast, high scorers on the inhibitive DEBQ-restraint scale were expected to regulate their ice cream intake. A robust effect was found: high scorers never regulated ice cream intake after a preload on either the disinhibitive or the inhibitive scales, while low scorers always did. For the RS a significant interaction effect was found [F(1,39)=4.97, p=.03]. None of the other subscales showed interaction effects. The t tests showed that low scorers on all subscales ate significantly less after a preload than without one, while high scorers on all subscales did not differ in intake after a preload or without one. This nonregulation appears to be characteristic of people preoccupied with caloric intake, regardless of the content of the preoccupation.     

Food word processing in Chinese reading: A study of restrained eaters

Food-related attentional bias refers that individuals typically prioritize rewarding food-related cues (e.g. food words and food images) compared with non-food stimuli; however, the findings are inconsistent for restrained eaters. Traditional paradigms used to test food-related attentional bias, such as visual probe tasks and visual search tasks, may not directly and accurately enough to reflect individuals' food-word processing at different cognitive stages. In this study, we introduced the boundary paradigm to investigate food-word attentional bias for both restrained and unrestrained eaters. Eye movements were recorded when they performed a naturalistic sentence-reading task. The results of later-stage analyses showed that food words were fixated on for less time than non-food words, which indicated a superiority of foveal food-word processing for both restrained and unrestrained eaters. The results of early-stage analyses showed that restrained eaters spent more time on pre-target regions in the food-word valid preview conditions, which indicated a parafoveal food-word processing superiority for restrained eaters (i.e. the parafoveal-on-foveal effect). The superiority of foveal food-word processing provides new insights into explaining food-related attentional bias in general groups. Additionally, the enhanced food-word attentional bias in parafoveal processing for restrained eaters illustrates the importance of individual characteristics in studying word recognition.     

Emotional arousal and persuasion effects in flooding

The effects of a single session of imaginal flooding were studied in female students unable to touch a harmless spider. All combinations of continuous vs. discontinuous presentation and highly arousing vs. less arousing material were used in a factorial design, to test the hypothesis that highly arousing material is beneficial only when presented under massed conditions. Results were clearly against prediction and suggested that immediate attitude change was maximal following less arousing material, irrespective of method of presentation; while behaviour change was greatest when less arousing material was presented continuously.

In a second experiment, subjects were exposed to both types of theme material in either a low-high or a high-low order. Some evidence was found for the postulated attitude changes and contrast effects, which favoured the use of a high-low order. Possible explanations for earlier contradictory evidence, and implications for clinical treatment are discussed.     

Double trouble: restrained eaters do not eat less and feel worse

Objective: While high levels of dietary restraint do not appear to reflect actual caloric restraint, it has been found to be a risk factor for a wide array of maladaptive eating patterns. These findings raise the question what, if not caloric restriction, dietary restraint entails. We propose that the very finding that restrained eaters do not eat less than they intend to do can provide an answer. Based on this disparity between the intention to restrain oneself and actual behaviour, we therefore hypothesised that high levels of restraint are associated with eating-related guilt.

Method: Three studies (N?=?148) using unobtrusive measures of food intake; different restraint scales; and different measures of guilt tested whether restraint is related to eating-related guilt.

Results: Results indicated that restraint was not associated with food intake, but instead was associated with increased levels of guilt after eating. Guilt was explicitly related to food intake. Moreover, the observed guilt could not be attributed to a general increase in negative affect.

Conclusion: The results of these studies suggest that restraint is not an indicator of actual restricted food intake, but rather a reflection concerns about food and eating manifested in eating-related guilt.     

Emotional valence and arousal interact in attentional control

ABSTRACT— A recent study demonstrated that observers' ability to identify targets in a rapid visual sequence was enhanced when they simultaneously listened to happy music. In the study reported here, we examined how the emotion-attention relationship is influenced by changes in both mood valence (negative vs. positive) and arousal (low vs. high). We used a standard induction procedure to generate calm, happy, sad, and anxious moods in participants. Results for an attentional blink task showed no differences in first-target accuracy, but second-target accuracy was highest for participants with low arousal and negative affect (sad), lowest for those with strong arousal and negative affect (anxious), and intermediate for those with positive affect regardless of their arousal (calm, happy). We discuss implications of this valence-arousal interaction for the control of visual attention.     

Emotional arousal enhances word repetition priming

Three experiments were conducted to determine if emotional content increases repetition priming magnitude. In the study phase of Experiment 1, participants rated high-arousing negative (taboo) words and neutral words for concreteness. In the test phase, they made lexical decision judgements for the studied words intermixed with novel words (half taboo, half neutral) and pseudowords. In Experiment 2, low-arousing negative (LAN) words were substituted for the taboo words, and in Experiment 3 all three word types were used. Results showed significant priming in all experiments, as indicated by faster reaction times for studied words than for novel words. A priming × emotion interaction was found in Experiments 1 and 3, with greater priming for taboo relative to neutral words. The LAN words in Experiments 2 and 3 showed no difference in priming magnitude relative to the other word types. These results show selective enhancement of word repetition priming by emotional arousal.     

The control dilemma in eating behavior: influence of temptation cues in restrained versus unrestrained eaters

The present research explored the effects of pre-exposure to temptation primes and dieting primes on food intake, goal accessibility and explicit automatic evaluations of food-enjoyment and dieting goals among restrained and unrestrained eaters. Participants (n= 166) were randomly assigned to three conditions: food-cue, dieting, or control, in which they were exposed to incidental presentation of gourmet, fashion or geographic magazines, respectively. Words related to the goals of dieting and/or food- enjoyment were presented in a computer decision task following the incidental presentation of gourmet, dieting, and geographic magazine photographs. The computer task and the presentation of food were counterbalanced. Participants' food intake was assessed in a taste-rating task. Restrained eaters ate more than did unrestrained eaters across the three conditions. Restrained eaters who were exposed to food cues ate more than did restrained eaters in the control condition and they evaluated the goal of dieting more negatively compared to restrained eaters in the other two conditions. These findings were inconsistent with 'Counteractive Self-Control Theory' but consistent with previous studies on the effects of food-cue exposure in restrained eaters.     

Emotional, external, restrained eating and overweight in Dutch adolescents

The purpose of this study was to determine how emotional, external and restrained eating behavior and other health-related lifestyle factors were associated with being overweight in adolescents. Moreover, demographic and ethnic differences in eating behavior have been examined. The respondents were 10,087 Dutch adolescents aged 11-16 years (M= 13.0, SD= 0.8). Self-reported eating behavior was measured with the DEBQ. Health-related lifestyle was determined by physical activity, breakfasting, fruit consumption and snacking. High restrained, and low external eating were positively associated with being overweight, whereas no significant association between emotional eating and being overweight was found for girls, and a negative association for boys. Adolescents who ate breakfast on a daily basis were less likely to be overweight than those who ate breakfast irregularly or never. Being overweight was positively associated with fruit consumption for girls and negatively with physical activity for boys.     

Exposure to slim images in mass media: television commercials as reminders of restriction in restrained eaters

OBJECTIVE: The aim of the present study was to explore the effects of exposure to slim images and diet-related products in commercials on actual food intake in relation to dietary restraint. DESIGN: An experimental design was used, in which food intake was measured in 124 female students who watched either a sad or a neutral movie on television, which was interrupted by either commercials featuring slim models and diet products, or neutral commercials. Subsequently, participants filled out questionnaires on dietary restraint and any tendency toward overeating. MAIN OUTCOME VARIABLE: Intake of snack food while watching television. RESULTS: It was found that highly restrained students exposed to commercials with slim models and diet-related products ate less food, whereas less restrained eaters ate slightly more after seeing these commercials. CONCLUSION: The findings suggest that restrained eaters confronted with diet products and slim images when watching television will be reminded of their restricted eating behavior and eat less. The present study provides support for the reinhibition theory of slim media images.