Publications (6)0 Total impact
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Article: Effects of coffee intake on feeding behavior in rats
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ABSTRACT: The objective of the present study was to evaluate the effects of coffee intake with and withoutcaffeine on feeding behavior in rats. Sixteen rats was exposed to 2g, 3g, 4g and 5g of coffee withcaffeine and without caffeine diluted in 200ml of water. Subjects were assigned to 4 groups conformedby 2 females and 2 males each one. Groups 1 and 2 were exposed to coffee with caffeineand groups 3 and 4 to coffee without caffeine. Exposed to coffee for groups 1 and 3 was of ascendingform (2 g, 3 g, 4 g, and 5 g) and for groups 2 and 4 of descendent form (5 g, 4 g, 3 g and2 g). The experiment was divided in 9 phases. Phases 1, 3, 5, 7 and 9 lasted of 10 days, in eachone were provided 200ml of water and 50g food. Phases 2, 4, 6 and 8 lasted of 5 days; in eachone provided the concentrations of coffee and 50g food. The results showed that the low concentrationsof coffee registered a greater consumption in comparison with the high concentrations inboth conditions (ascending and descendent). On the other hand, coffee without caffeine was moreconsumed than coffee with caffeine.Diversitas. 01/2009; -
Article: Effects of Environmental Variables on Eating Behavior in Rats: a Conceptual and Historical Review
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ABSTRACT: The purpose of this review was to show the effects of environmental variableson the eating behavior in rats. The eating behavior and its relatedvariables have been analyzed since a variety of perspectives. The presentreview included studies in which rats were used as subjects and the totalfood intake or any operant response related to obtaining food was registered.Two variables, inter access-to-food interval and access-to-food duration, aresuggested as possible integrating variables given that both are common tomany experimental procedures. These variables set the occasion for developingan animal experimental model that includes cases related to eatinghuman behavior such as anorexia or bulimia.Universitas Psychologica. 01/2009; -
Article: Effects of nutritional information on fruits and vegetables consumption in preschoolers children
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ABSTRACT: This study evaluated effects of nutritional information about fruits and vegetables consumption. Participants were 25 children between 3 and 5 years-old, which were exposed at high and low nutritional foods. Subjects were divided in two groups (experimental and control) and exposed to four phases. Experimental group received nutritional information about dietetic habits, nutritional facts and benefits of fruits and vegetables consumption. Results showed that nutritional information modified the eating behaviour. Non-nutritious food consumption diminished, but fruits and vegetables consumption not increased. Data suggest that nutritional information modifies eating behaviour development in preschoolers, but is necessary a suitable duration and frequency with adequate reinforced in house through model of parents.Diversitas. 01/2008; -
Article: EFFECTS TO MODIFY THE CALORIC CONTENT OF WATER ON BODY WEIGHT, WATER, FOOD AND CALORIES CONSUMPTION IN RATS
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ABSTRACT: Six albino rats were divided in two experimental groups and one control. The experiment began withfifteen days of free access; subsequently experimental groups maintained available three concentrationsof glucose: high, middle and low. First group received high-middle-low-high-middle-low sequence andsecond group received low-middle-high-low-middle-high sequence during six days. Control group notreceived glucose concentrations. Caloric concentration of food never changed. Results suggest thatmodification of caloric concentration in water affects feeding behavior. Nevertheless, water with glucoseconsumption did not change body weight.Universitas psychologica. 01/2006; -
Article: CAN DIETS “CAUSE” OVERWEIGHT? A COUNTERFACTUAL ANALYSIS
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ABSTRACT: The objective of the current work is to ask for the role of diets in the body weight. The experimental evidence showedthat when deprivation was removed body weight was recovered or even increased. In the analysis of this phenomenon,the principal philosophical approach of causality concept and the counterfactual model proposed for Von Wright wasused. The results demonstrated that a deprivation period is a sufficient condition to produce gain weight whenreturning to free access.Universitas psychologica. 01/2005; -
Article: EFFECTS TO MODIFY THE CONTEXT ON THE CONSUMPTION OF WATER AND FOOD DURING A STATE OF SATIETY IN RATS
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ABSTRACT: Six rats were exposed to three alimentary contexts, the first one, considered as habitual context, provided food only fora period of time. The second contained in the surface a cover of stones and allowed free access to the food until thesubject achieved the satiety state. The third context (novel) contained water in the surface and provided food during thetest phase. The food consumption was compared between the habitual context and the novel one after the subjectachieved the satiety state. The results show that in spite of the satiety the subjects consumed food in the novel context,but they didn’t consume food in the habitual context. These results are discussed in terms of how the contextinfluences the feeding behavior.Universitas psychologica. 01/2005;
