BEHAVIORAL ASSESSMENT AND TREATMENT OF CHRONIC FOOD REFUSAL IN HANDICAPPED CHILDREN

In this study, we examined the eating behavior of four handicapped children, none of whom exhibited self-feeding skills. All children had a history of food refusal and were nutritionally at risk; one child received all nourishment by way of a gastrostomy tube. Baseline data taken during mealtimes indicated that all children accepted very little food, expelled food frequently, and engaged in a number of disruptive behaviors. Treatments consisted of one or more of the following contingent events: social praise, access to preferred foods, brief periods of toy play, and forced feeding. Results of multiple-baseline and reversal designs showed marked behavioral improvement for each child and increases in the amount of food consumed. Further improvements were noted at follow-up, which ranged from 7 to 30 months posttreatment.     

Eating habits, physical activity, consumption of substances and eating disorders in adolescents

The aim of this study was to evaluate the differences between adolescents with a high or low risk of developing an eating disorder (ED) in different health behaviors (eating habits, physical activity and the consumption of substances) per gender. The EAT-40 and the Inventory of Behavioral Health in Scholars were applied to 2142 middle school students from Alicante (Spain), of whom 52.8% were girls and 47.2% were boys, with an average age of 13.92 years old (Sd = 1.34). Results indicated that girls with a high risk of developing an ED consumed fewer meals, ate fewer unhealthy foods, followed more diets and paid more attention to nutritional components. Furthermore, they also performed more physical activity with the objective of losing weight, and consumed more tobacco, alcohol and medicines. Boys at high risk of developing an ED followed more diets and paid more attention to nutritional components. For boys, no more differences were found. These results suggest that any program directed at the prevention of ED should not only include nutritional education, but should also seek to promote regular physical activity with objectives other than weight loss or the burning of calories.     

Lack of interference in long-term memory for socially learned food preferences in rats (Rattus norvegicus)

Outside the laboratory, rats (Rattus norvegicus) are likely both to interact with several conspecifics that have eaten various foods and to eat a variety of foods themselves before they encounter any particular food for which they have a socially enhanced preference. Here the authors examine the stability of rats' socially learned food preferences following 6 days of potentially disruptive ingestive experiences. The authors found that 6 days of (a) eating unfamiliar foods, (b) interacting with demonstrators that had eaten unfamiliar foods, or (c) both eating unfamiliar foods and interacting with demonstrators that had eaten those foods had no measurable effect on rats' socially learned food preferences. The stability of socially enhanced food preferences over time and despite potentially disruptive experiences is consistent with the view that social learning about foods is an important determinant of the food choices of free-living Norway rats.     

The effect of adults' eating on young children's acceptance of unfamiliar foods

Adults presented unfamiliar foods to 14- to 20- and 42- to 48-month-old children individually in their homes. More children put the food in their mouths when the adults also were eating than when the adults simply were offering the food. More children put food in their mouths when their mothers were the source than when the source was a friendly adult “visitor”. However, even when alone with a child, the visitor's eating elicited reliably more tasting. Analysis of requesting behavior indicated that the adults' eating aroused a desire to eat in the children. There were no consistent sex differences or interactions between sex of visitor and sex of child in children's food acceptance. There was a suggestion that younger children were more affected by repeated offerings than were older children. It is concluded that a relatively “low level” form of observational learning—“social facilitation”—can account for the data.     

Racial and gender differences in weight status and dietary practices among college students

A questionnaire was used to assess nutritional intake, weight status, and dietary practices among 630 U.S. college students. Body mass index (BMI) was calculated using self-reported heights and weights, and nutritional status was assessed via 24-hour recall. Sixty-four percent of the students had acceptable BMI levels (between 19 and 25); 16% of African-American females and 15% of African-American males had BMIs indicating obesity (30 or above). Approximately 18% of the students consumed 5 servings per day of fruits and vegetables, 7% consumed 6 or more grain products, and 53% consumed 2 or more dairy products. Twenty-seven percent reported never/rarely eating fast foods. Recommendations are presented for the development of culturally appropriate health education/promotion programs in order to help college students meet Healthy People 2010 objectives.     

Mere social knowledge impacts children's consumption and categorization of foods

How does social information affect the perception of taste early in life? Does mere knowledge of other people's food preferences impact children's own experience when eating? In Experiment 1, 5‐ and 6‐year‐old children consumed more of a food described as popular with other children than a food that was described as unpopular with other children, even though the two foods were identical. In Experiment 2, children ate more of a food described as popular with children than a food described as popular with adults. Experiment 3 tested whether different perceptual experiences of otherwise identical foods contributed to the mechanisms underlying children's consumption. After sampling both endpoints of a sweet‐to‐sour range (applesauce with 0 mL or 5mL of lemon juice added), children were asked to taste and categorize applesauce samples with varying amounts of lemon juice added. When classifying ambiguous samples that were near the midpoint of the range (2 mL and 3 mL), children were more likely to categorize popular foods as sweet as compared to unpopular foods. Together, these findings provide evidence that social information plays a powerful role in guiding children's consumption and perception of foods. Broader links to the sociality of food selection are discussed.     

The (Extremely) Picky Eaters Clinic: A Pilot Trial of a Seven-Session Group Behavioral Intervention for Parents of Children With Avoidant/Restrictive Food Intake Disorder

Excessive and impairing picky eating is a common problem among children for which there is little published research on efficacious psychosocial treatment. Extant research largely concerns single-case studies, or small samples of very young children, who are typically treated in hospital settings. This paper reports on outcomes of 21 children (ages 4–11) described by their parents as extremely picky eaters who met criteria for avoidant/restrictive food intake disorder not associated with a developmental disorder, other eating disorder, or other eating-related anxiety disorder (e.g., specific phobia of vomiting or choking). Seven cohorts of two to four families each took part in a seven-session manualized parent-only group treatment in an outpatient setting. This group treatment focused on training parents to serve as effective coaches for daily in-home exposures to nonpreferred foods, as well as in components of parent management training to reduce problematic mealtime behaviors. Parents completed standardized feeding measures to assess picky eating and associated problem mealtime behaviors at pretreatment, posttreatment, and at 3-month follow-up, as well as a satisfaction measure at posttreatment. Results showed excellent feasibility and adherence by parents and high parent satisfaction with treatment. Paired t tests to measure within-group change showed significant pre–post treatment reductions in picky eating scales with moderate to large effect sizes. Gains were maintained at 3-month follow-up. Findings indicate that a relatively brief group treatment that focuses specifically on training parents to facilitate and carry out food exposures and contingency management procedures in their homes is associated with reductions in functionally impairing picky eating and related negative mealtime behaviors in elementary school-age children.     

Food stealing by young Norway rats (Rattus norvegicus)

Six experiments were undertaken to explore factors affecting young rats' (Rattus norvegicus) frequencies of stealing food from conspecifics when identical food is available in surplus. It was found that (a) rats would walk across a bed of pellets to steal the particular pellet a peer was eating, (b) frequency of stealing within a pair did not decrease over days, (c) rats stole unfamiliar foods more frequently than familiar foods, (d) younger rats stole from older rats more frequently than older rats stole from younger ones, (e) hungry rats stole more frequently than replete rats, and (f) rats that had stolen a pellet of unfamiliar food from an anesthetized conspecific subsequently exhibited an enhanced preference for that food. Results suggest that food stealing is a mode of active seeking of information about what foods to eat.     

Social transmission of food preferences in Japanese monkeys (Macaca fuscata) after mere exposure or aversion training

In Experiment 1, 3 mother-child pairs of Japanese monkeys (Macaca fuscata) were given simultaneous choice tests between raisins and popcorn. The mothers and offspring showed different choice patterns. Cofeeding opportunities were then alternated with individual choice tests. In Experiment 2,2 other pairs were added. Each animal was again offered simultaneous choice tests between marshmallows and almonds. Food aversion conditioning was used to create different choice patterns for mothers and offspring. After cofeeding and choice tests, the differences in choice patterns disappeared in both experiments. The changes after contact with the other's eating pattern during cofeeding was as follows: foods consumed by either came to be eaten by both; foods consumed by both continued to be eaten by both; and foods consumed by neither continued to be ignored. The results provide evidence for social transmission of food preferences in this species.     

Temperament as Risk and Protective Factors in Obesogenic Eating: Relations Among Parent Temperament,Child Temperament,and Child Food Preference and Eating

Children’s food preferences and eating behaviors have implications for their health and weight status, serving as risk or protective factors for obesity. Although parent and child factors influence children’s eating, few studies have examined parent and child temperament simultaneously in relation to child food preference and eating behaviors. The authors addressed this research gap. Participants were 115 ethnically diverse children between 4 and 6?years old and their parents. Measures included parental temperament traits, parental anxiety, child temperament traits, and child food preference and eating behaviors observed using a laboratory procedure. Results show that children preferred candies over grapes, and that aspects of both child and adult temperament were related to child eating behaviors. Child surgency was linked to eating more candies, while child effortful control was linked to eating more grapes. Parent effortful control was related to children’s preference toward grapes. No relations were found between child eating behaviors and child or parent negative affectivity and parental anxiety. Overall, findings suggest that highly impulsive and poorly self-regulated children may be at risk for obesogenic eating habits.     

Temperamental surgency and emotion regulation as predictors of childhood social competence

The primary aims of the current study were to longitudinally examine the direct relationship between children's temperamental surgency and social behaviors as well as the moderating role of children's emotion regulation. A total of 90 4.5-year-old children participated in a laboratory visit where children's temperamental surgency was rated by experimenters and children's emotion regulation abilities were assessed. The summer before entry into first grade, children's social behaviors with unfamiliar peers were observed in the laboratory and mothers completed a questionnaire about children's social behaviors. Supporting our hypotheses, results revealed that children high in temperamental surgency developed more negative peer behaviors, whereas children low in temperamental surgency were more likely to develop behavioral wariness with peers. Emotion regulatory behaviors were found to moderate the relation between temperamental surgency and aggression, where high-surgent children who showed high levels of social support seeking were less likely to be rated by their mothers as high in aggression. Furthermore, results revealed that low-surgent children who showed high levels of distraction/self-soothing were more likely to show behavioral wariness around unfamiliar peers, whereas high-surgent children who used more distraction/self-soothing behaviors were rated by their mothers as lower in social competence.     

Predictors of disinhibited eating in children with and without overweight

OBJECTIVE: This study examined how 7-13-year-old children with and without overweight respond to free access to snack food in the absence of hunger and whether this eating behaviour could be predicted by parental feeding strategies and child's characteristics. METHODS: A total of 52 children (26 normal weight and 26 overweight children) were exposed to snack food after consuming a typical meal. Parental feeding practices and child's variables were assessed via self-report. RESULTS: Two-third of the sample ate of the presented snacks and consumed an average of 68 g. Overweight boys consumed twice as much than the normal weight boys. Parental feeding strategies did not contribute to the prediction of this eating behaviour. Regardless of the children's weight status, the child's eating style strongly predicted snack intake. CONCLUSIONS: This study provides evidence that overweight boys show difficulties in regulating their eating behaviour. Inconsistent with previous work, no evidence for parental contribution of snack intake was found. The present findings suggest that in older children especially children's own eating style account for the variance in snack eating behaviour.     

Teaching young children to make accurate portion size estimations using a stimulus equivalence paradigm

The prevalence of obesity among children and adolescents has increased over the past four decades. Obesity can be conceptualized as a problem related to energy balance, where more energy is consumed than is expended through physical activity. One way that children may have a positive energy balance is through the overconsumption of foods (i.e., eating large portion sizes). Therefore, interventions that teach children to make accurate portion size estimations may be important to maintain overall health. In the current study, seven children between the ages of 4 and 7 years were taught to make accurate portion size estimations using a stimulus equivalence paradigm. Results suggested that the stimulus equivalence paradigm was effective in teaching five of seven participants to make more accurate portion size estimations during posttraining. Furthermore, five of seven participants estimated the target portion size of a novel food during extension sessions. These findings extend the current literature related to teaching children to make accurate portion size estimations. Although this was a translational study, results might help to inform existing nutrition education programs aimed at teaching children healthier eating habits.     

The effect of reinforcement or stimulus control to reduce sedentary behavior in the treatment of pediatric obesity.

Obese children were randomly assigned to a family-based behavioral treatment that included either stimulus control or reinforcement to reduce sedentary behaviors. Significant and equivalent decreases in sedentary behavior and high energy density foods, increases in physical activity and fruits and vegetables, and decreases in standardized body mass index (z-BMI) were observed. Children who substituted active for sedentary behaviors had significantly greater z-BMI changes at 6 (-1.21 vs. -0.76) and 12 (-1.05 vs. -0.51) months, respectively. Substitution of physically active for sedentary behaviors and changes in activity level predicted 6- and 12-month z-BMI changes. Results suggest stimulus control and reinforcing reduced sedentary behaviors are equivalent ways to decrease sedentary behaviors, and behavioral economic relationships in eating and activity may mediate the effects of treatment.     

Organization of behavior in unfamiliar female rabbits

Under natural conditions, female European rabbits usually spend the whole of their life in their natal groups, establishing a network of stable relationships with their group-mates, particularly with other females. Indeed, female social interactions with groupmates are ultimately responsible for the dimension, structure, and cohesion of the group itself. Despite their importance in social organization, non-reproductive female behaviors are poorly known. This study aims to provide information on the nature and distribution of these behaviors in familiar and unfamiliar milieux. For this purpose, female rabbits unfamiliar with each other were experimentally grouped, housed in outdoor enclosures new to them, and observed as they gradually familiarized with their environment and group-mates. When females were unfamiliar with both environment and group-mates, they would often mark objects (but never conspecifics) and engage in agonistic activities, preceded by approach and olfactory investigation. Once females had become familiar with their environment and group-mates, they spent a lot of time eating and self-grooming. Marking frequency decreased, and agonistic behavior became rare and appeared no longer related to introductory behaviors, which under these conditions led to amiable interactions, such as lying side by side with group-mates or grooming them. Under both unfamiliar and familiar conditions, high-ranking females appeared more active and interactive than low-ranking ones.     

Modification of preschool children's bathroom behaviors by contigent teacher attention

In response to teacher requests for assistance in dealing with bathroom behavior problems, repeated measures of the frequency of paper towel litter, unflushed toilets, dirty sinks, and running water faucets were used to evaluate the effectiveness of contingent teacher praise for appropriate bathroom use by preschool children. Contingent praise for appropriate bathroom behaviors resulted in markedly decreased frequencies of the four target behaviors. Findings suggest that teacher monitoring and contingent social reinforcement can be used to maintain a clean environment in school toilet facilities. The importance of employing natural reinforcers in school settings is discussed.     

Are mothers of stutterers different? An investigation of social-communicative integration

Many speech-language pathologists assume that parent-child communicative interactions are critical precipitating or maintaining factors in the onset and development of stuttering. Although parents are frequently counseled to alter their attitudes or behaviors, no studies have pinpointed specific parental behaviors as increasing children's disfluency. The purpose of this study was to analyze differences between 12 mothers of stutterers and 12 mothers of nonstutterers in their social-communicative interactions with their own child, an unfamiliar stutterer, and an unfamiliar nonstutterer. Ten minutes of free-play interaction between each mother and child were video recorded from behind a one-way mirror. Results indicate that the two groups of mothers differed significantly only in their use of routine statements. Other findings indicate that stuttering children used significantly more positive and imperative statements than nonstuttering children. All children asked significantly more questions of their own mothers than of unfamiliar mothers.     

TRAINING PRESCHOOL CHILDREN TO RECRUIT NATURAL COMMUNITIES OF REINFORCEMENT1

Four normal and four deviant children aged four-to-six years were taught to judge the quality of their academic work in a preschool classroom, and to prompt or cue their teachers to comment about the quality of that work. When these skills did not generalize spontaneously to other teachers in concurrent natural situations, generalized responding was taught by the experimenter, in multiple-baseline design across subjects. This generalization programming enabled the children to contact a sometimes dormant, but readily available natural community of teacher praise and reinforcement, i.e., to recruit an increase in cued praise and schedules of praise for their good work. These behaviors may be important to young children who find themselves bereft of attention in classrooms.     

Changing food preference as a function of mood

The authors investigated the effect of mood on food selection. Participants (N = 98) indicated the likelihood of general eating and the likelihood of eating specific foods after reading and projecting themselves onto the events and emotions described in a sad and a happy vignette. Both men and women believed they were more likely to consume food following a happy versus a sad event, and men believed they were significantly more likely to eat than did women. However, the type of food men and women believed they would consume interacted with the type of event experienced. Vegetarian snack foods were more likely to be consumed following a happy versus a sad event, with men more likely to eat snack foods. Men did not significantly change in likelihood of consuming sweet foods as their mood changed. However, women believed they were more likely to consume sweet foods following a sad event. The authors discuss the results in terms of a self-medication hypothesis and the effect of carbohydrates on central serotonin and endogenous opioids. Overall, results demonstrated that mood influences belief in the likelihood of food selection.