Appetite
Self-selected food intake of 15 reduced-obese women living in a metabolic ward was studied for 14 consecutive days to determine the effect of exercise and other metabolic and behavioral variables on energy intake. A choice of prepared food items were offered at breakfast, lunch and dinner, and a variety of additional food items were available continuously 24 h/day. Subjects performed either moderate...
Male and female undergraduate students (n=387) were asked to complete the statement ''I usually stop eating when'' on a written survey which listed four or five alternative responses and an open, write-in, alternative. Half of the questionnaires listed the alternative, ''I feel full''; the other half omitted this alternative. While the fullness option was the most popular response overall, men and...
We have shown previously that intravenous infusions of insulin, known to induce glucoprivic hunger, and of insulin combined with glucose, known to induce satiety, produce in the VMH and PVN of Wistar rats monoaminergic changes that differ from those related to spontaneously occurring hunger and satiety, while the genetically obese Zucker rat is totally resistant to the behavioural effects of insulin...
Hospitalized women with anorexia nervosa and/or bulimia nervosa and dietarily restrained and unrestrained, clinically normal women were provided with a multi-item breakfast meal. Eating patterns and hunger and satiety ratings were assessed. Subjects were offered three foods which varied in fat and carbohydrate contents. Anorectic-restrictors differed most from the control subjects: they had a longer...
The effects of a reduced energy content of two meals on hunger motivation, physiological variables and reactions to emotional stress were investigated. Healthy normal-weight male students received breakfast and lunch in the laboratory. Half of the subjects (n=28) received meals with normal energy content (1700 kcal), and half received meals with reduced energy content (260 kcal). Psychological and...
This review discusses the role that dietary composition and energy density play in the control of eating behaviour. The effect of dietary manipulations of fat and carbohydrate on energy intake remains controversial. We suggest this to be largely a consequence of different study designs. When low-fat foods are included in the diet and thus only some items manipulated subsequent food choice commonly...
The effect of acid-base status on self-selection of dietary protein was examined in three groups of adult male cats fed 20% soybean-protein and lactalbumin diets formulated to produce acidic, neutral or alkaline status. In two experiments, cats were offered a choice between the 20% protein diets or (1) the same diet with additional protein as casein (49% total crude protein) or (2) the same diet with...
The aims were to investigate the occurrence of food and general neophobia in Swedish families with children 2-17 years of age, parent-child correlations with respect to neophobia and the relationships between neophobia and the reported serving of specific foods in the family. A group of 370 randomly selected families from two Swedish towns (stratified, 185 from each) were invited and 57 (15%) participated...
This study was done to determine the relative effects of energy content and weight of ingested food on subsequent satiety and food intake. The weight/volume and the energy content of nine preloads were manipulated, in a 3x3 factorial design, to give three weight levels, 250, 500 and 750 g, and three energy levels 0, 1.26 and 2.51 MJ (0, 300 and 600 kcal). The weights were varied by the addition of...
Traditional methods for examining binge-eating (e.g. food diaries, laboratory binges), primarily employing clinical samples, have a number of limitations. This paper details three studies utilizing a new methodology to examine perceptions of binge eating: standard videotapes of male and female models consuming doughnuts. College students (n=459) viewed one of nine videotapes and were asked if the...
Eating and other behaviors were measured in 36 food-deprived rats on 15 consecutive days during 20 min test sessions. During training sessions 1 to 5 all animals were habituated to the test boxes with white noise of 55 dB intensity. For sessions 6 to 10 noise intensity was increased to 95 dB for the experimental rats and to 60 dB for the control rats. The food intake of experimental rats was lower...
The role of economic and social influences on water intake in humans was explored in two experiments. In the first experiment, the effect of water cost (as defined as the amount of effort required to acquire water) on prandial drinking was studied by manipulating water position during anad libitummeal: water was available either on the dining table, about 20 feet from the table, or approximately 40...
Cold induces increased intake of salt in mice. To examine involvement of renin and catecholamines, male ICR mice were exposed to cold (7-9 o C; 6 h/day; 4 days), and half of them were allowed to choose between water and 0.9% NaCl. Plasma renin activity (PRA) and catecholamine concentrations in plasma, adrenal gland, kidney, brown adipose tissue (BAT) and brain were examined in three phases:...
The primary aim of this experimental investigation was to examine the effects of short-term dietary restriction on caloric consumption in eating disordered subjects. Subjects with bulimia nervosa, binge eating disorder, and overweight non-eating disordered subjects, attended a laboratory experiment during which they were randomly assigned to either a 1 h or a 6 h food deprivation condition prior to...
Short-term effects of low-fat (10% fat energy), mixed (30% fat energy), and high-fat (50% fat energy) diets on 24-h energy expenditure, and on its components sleeping metabolic rate, diet induced thermogenesis and energy expenditure for physical activity were studied for 3 days using a respiration chamber in twelve normal-weight female volunteers classified as restrained or unrestrained eaters. There...