Introdução: Estudos em creches e pré-escolas têm verificado um aumento na incidência de excesso de peso em pré-escolares, daí a importância do monitoramento do estado nutricional e de intervenções. Objetivos: Avaliar o grau de aceitação dos alimentos em pré-escolares de acordo com o estado nutricional, identificar o estilo de vida e a alimentação habitual. Método: Participaram 124 crianças de 4 a 6 anos das Creches e Pré-escolas COSEAS/USP. Sessenta e duas crianças com risco/excesso de peso (IMC>p85 por cento) e 62 com peso adequado para idade. Utilizou-se questionário de freqüência alimentar (QFA), questionário sobre estilo de vida e teste afetivo com escala hedônica. As crianças foram familiarizadas com o teste por uma história. Teste t-Student foi utilizado para análise do QFA, ANOVA e Tukey para aceitação dos alimentos. As associações do grau de gostar dos alimentos e o estado nutricional por regressão logística. Resultados: As atividades das crianças em casa são mais sedentárias. Os meninos do grupo de risco/excesso de peso estão menos expostos a TV do que as demais crianças. Na pré-escola as crianças brincam mais do que em casa. Não houve diferença significante no consumo habitual de calorias e macronutrientes entre os grupos. Destacaram-se 13 alimentos com maior aprovação e a batata frita foi o preferido das crianças nos dois grupos. As crianças com risco/excesso de peso gostam mais de feijão (p=0,010) e macarrão (p=0,034) que as eutróficas. Gostar de peixe e leite diminuiu a Odds para excesso de peso, sendo que o leite diminuiu mais (0,442) que o peixe (0,660). Conclusão: Os dados sugerem uma preferência das crianças por alimentos ricos em gordura e açúcar. As evidências de que consumir leite está negativamente relacionado com a massa corporal sugerem que gostar de leite possa diminuir as chances do ganho excessivo de peso quando consumido em quantidade suficiente / Introduction: Studies in daycare centers and pre-schools have verified an increase in the incidence of overweight in preschool children, for that reason the importance of the monitoring of the nutritional status and of interventions. Objectives: Evaluate the preferences and the degree of food acceptance by preschool children according to the nutritional status, identify the lifestyle and the usual eating. Methodology: One hundred twenty four children aged 4-6 from daycare centers and pre-schools of COSEAS/USP were selected. Sixty-two children with risk/overweight (BMI>p85 per cent) and 62 with adequate weight for the age. It utilized food frequency questionnaire (FFQ), questionnaire about lifestyle and affective test with hedonic scale. The children were familiarized with the test through a story. t-Student test and factorial analysis for the analysis of the results of the FFQ, ANOVA and Tukey for food acceptance analysis. The associations of the degree of liking and the nutritional status by logistic regression. Results: The activities of the children at home tend to be more sedentary. The boys from the risk/overweight group spend less time in front of TV than the others. The environment of the preschool favors more opportunities for fun and activity. There was no difference in usual consumption of calories and macronutrientes among the children. It stood out 13 foods with more approval and the fried potato was the favorite one in both groups. Children with risk/overweight like more bean (p=0,010) and macaroni (p=0,034) than the others. Like fish and milk decreased the Odds for the risk/overweight group, being that the milk decreases more (0,442) than the fish (0,660). Conclusion: The data suggest a childrens preference for high fatty and sugar foods. The evidences that consuming milk is negatively related with the corporal fat mass suggest that liking milk might decrease the chances of gaining excessive weight when consumed in sufficient quantity

O presente trabalho teve como objetivo verificar a aquisição de função simbólica de expressões emocionais por nomes de alimentos verdadeiros e fictícios em adolescentes, por meio do paradigma de equivalência de estímulos. No Estudo I foram ensinadas relações entre as faces humanas expressando alegria e neutralidade com nomes de alimentos verdadeiros pelo procedimento de matching-to-sample simultâneo, diferindo a quantidade de treino em três grupos experimentais (segundo e terceiro grupo com supertreino). Os retratos faciais (conjunto A) foram relacionados a conjuntos de estímulos abstratos (conjuntos B e C); estímulos do conjunto B foram relacionados a nomes de alimentos (D). Portanto, as relações AB, AC e BD foram treinadas. Ao final foi conduzido o teste de equivalência CD/DC. Para avaliação inicial e final dos alimentos, foi utilizado um questionário com cinqüenta nomes de alimentos anexados a uma escala de avaliação de cinco pontos composta de expressões faciais e um teste de preferência alimentar com dez alimentos selecionados do questionário. Cinqüenta e cinco participantes da quinta série do ensino fundamental de escolas públicas e particulares concluíram o Estudo I. Trinta e cinco participantes mostraram desempenhos consistentes na fase de estabelecimento de equivalência de estímulos (nove do Grupo 1, onze do Grupo 2 e quinze do Grupo 3). Entre esses participantes, o alimento treinado com a face alegre foi avaliado em ambos os instrumentos como mais agradável por sessenta e seis porcento dos participantes do primeiro grupo e quarenta e cinco porcento do terceiro grupo. No segundo grupo, quarenta e cinco porcento avaliaram mais positivamente este alimento no pós teste de preferência alimentar. Em relação à face neutra feminina, os participantes dos Grupos 2 e 3 apresentaram avaliações finais mais positivas nos instrumentos finais . Porém, em relação ao alimento equivalente à face neutra masculina, destaca-se uma redução na avaliação do pós-teste de preferência nos Grupos Experimentais 2 e 3. O Estudo II teve como objetivo verificar se a transferência de função ocorreria se fossem utilizados nomes fictícios de alimentos relacionados com expressões esquemáticas de alegria, neutralidade e tristeza pelo procedimento de matching-to-sample com atraso. Os estímulos que diferiram do Estudo I foram os dos conjuntos A e D, compostos por faces esquemáticas e nomes fictícios de alimentos (capira, fulito e piteba), respectivamente. Um questionário com uma escala de cinco pontos de expressões esquemáticas foi usada como pré e pós teste. Trinta e seis participantes concluíram o Estudo II, dos quais vinte e cinco apresentaram desempenhos consistentes no teste de equivalência. A interação entre os questionários versus alimento teve um efeito significativo (p<0,001) no grupo de participantes que atingiram o critério de equivalência. Os participantes aumentaram as avaliações finais de capira (treinado com a face alegre), mantiveram avaliações finais muito próximas às iniciais no alimento fulito (treinado com a face neutra) e, diminuíram consideravelmente o pós teste do alimento piteba (treinado com a face triste). / The aim of the present study was to verify the acquisition of symbolic properties of facial expressions of emotion for real and fictitious food names in adolescents, using a stimulus equivalence paradigm. In Experiment 1, conditional relations between facial expressions (one of happiness and two expressing emotion neutrality) and real food names were trained by simultaneous matching-to-sample procedure. Three experimental groups differed only on the amount of training (Group 2 and 3 with overtraining). Pictures of facial expressions (Set-A) were related to abstract line drawing stimulus (Set-B and Set-C); C stimuli were related to food names (D). So, the AB, AC and BD relations were trained. Finally, they received the equivalence tests CD/DC. The participants were asked to rate the foods names for pleasantness in the beginning and in the end of the experiment by a questionnaire with fifty food names. These were linked to a five point scale of facial expressions and a preference test that had ten food names selected from the questionnaire. Fifty five participants that were in the fifth grade of public and private schools concluded Experiment I. Thirty five participants demonstrated equivalence (nine in Group 1, eleven in Group 2 and 15 in Group 3). The food trained with the happy face was valued in both final instruments of evaluation of the food preference as more pleasant by sixty six percent of the Group 1 participants and forty five percent of the Group 3. In Group 2, forty five percent valued as more pleasant this food only in the final evaluation of the preference test. The food related to the feminine neutral face showed more positive evaluations in Groups 2 and 3. On the other hand, the food equivalent to the masculine neutral face had a reduction in the food preference test in Groups 2 and 3. Experiment II aimed to verify if the transfer of function would happen if fictitious names of foods related to facial expressions of happiness, neutrality and sadness were used via delayed matching-to-sample procedure. Stimuli of Set-A and Set-D were different from Experiment I and had schematic expressions and fictitious food names (capira, fulito and piteba), respectively. A five point scale questionnaire of schematic expressions was used to value the fictitious names of foods in the beginning and in the end of the experiment. Thirty six participants finished Experiment II and twenty five showed stimulus equivalence. There was a significant interaction between the final evaluations and fictitious food names (p<0,001) in the equivalence group. The participants increased the final evaluations of the food trained with the happy face (capira), maintained almost the same evaluations of the food related with the neutral face (fulito) and considerably reduced the judgments of piteba, which was trained with the sad face.

THE INFLUENCE OF CENTRAL SEROTONINERGIC AND DOPAMINERGIC ACTIVITY ON NUTRITIONAL AND METABOLIC PARAMETERS MUDr. Ludmila Brunerová SUMMARY Introduction: Neuromediators dopamine and serotonin play a significant role in homeostatic and hedonic regulation of food intake, may exert direct metabolic effects and particularly serotonin influences affectivity. Their central activity could be quantified by functional tests. Common regulatory mediators of metabolism and affectivity represent an interesting research goal. Aims of study: The first aim was to describe the relationship between central serotoninergic activity measured by citalopram challenge test, affectivity, preference of macronutrients in food and metabolic profile in healthy men. The second aim was to confirm the use of sublingual apomorphine test as a functional test for assessment of central dopaminergic activity. The third aim was to reveal the relationship between central dopaminergic activity measured by sublingual apomorphine test, preference of macronutrients and metabolic profile. Methods: The study was performed on 42 healthy men (average age 43.5 ± 7.4 years and average BMI 27.4 ± 5.7 kg/mš) within 4 days with a week interval in between them. Anthropometric and...

A comparação social é um elemento ubíquo na sociedade, na qual os indivíduos, consciente ou inconscientemente, utilizam emoções, habilidades e opiniões dos demais para se avaliarem, se aprimorarem ou se promoverem. Por sua constante presença nas relações interpessoais e na vida das pessoas, a comparação social tem sido investigada e reconhecida a partir de uma ampla gama de consequências como emoções, julgamentos, atitudes e comportamento, e dentro deste último o comportamento de consumo. Para a melhor compreensão e aplicação da comparação social para a área de marketing, no entanto, é fundamental entender que suas consequências não ocorrem de maneira homogênea e o que influencia nessa heterogeneidade. Diante disso, esta pesquisa foi desenvolvida, buscando investigar como elementos individuais, como os valores pessoais, e variáveis associadas às relações sociais, como a sensação de poder, podem atuar no fenômeno da comparação social e em suas consequências, buscando assim contribuir para o maior reconhecimento teórico e prático deste fenômeno. Foi delimitado como campo de estudo a comparação social estética devido aos impactos psicológicos e sociais que este campo possui nos indivíduos, principalmente nas mulheres, sendo estas delimitadas como a população desta pesquisa. A partir da realização de três estudos empíricos, utilizando os métodos survey e experimental, foi possível comprovar a moderação dos valores de autopromoção e da sensação de poder na comparação social estética. Os valores de autopromoção exercem um impacto positivo na comparação social, estando correlacionados positivamente com a orientação que os indivíduos têm em se compararem, assim como estão associados com as consequências psicológicas geradas a partir da comparação. A sensação de poder, por sua vez, apresentou um impacto negativo sobre a comparação social estética, minimizando suas consequências psicológicas. A partir desta pesquisa buscou-se contribuir para a teoria da comparação social, abordando-a a partir da visão ainda pouco explorada do fenômeno de comparação como bietápico e, assim, cooperar para minimizar a existente carência de poder preditivo que a comparação social sofre, a qual limita o reconhecimento do seu papel central para as ciências sociais e para a área de marketing. Juntamente a isso pretendeu-se propor novas possíveis estratégias que possam minimizar os efeitos negativos da comparação social estética imposta pela mídia na forma como as mulheres se percebem. / Social comparison is an ubiquitous element in society, where individuals consciously or unconsciously use others emotions, skills and opinions to evaluate, to promote or to improve themselves. For its continuous presence in interpersonal relations and in people's lives, the social comparison has been investigated and recognized for a wide range of consequences such as emotions, judgments, attitudes and behavior, and also consumption behavior. To improve the comprehension and application of social comparison to the marketing area it is necessary to understand that its consequences are not homogeneous through the individuals, and what can impact this heterogeneity. Considering that, this research was developed in order to investigate how individual elements, such as personal values, and variables associated with social relations, such as the power sense, can influence the phenomenon of social comparison and its consequences. By this, we expect to contribute to the improvement of theoretical and practical recognition of social comparison phenomenon. It was delimitated as a research field the aesthetics social comparison considering its psychological e social consequences to humans, specially women, being this gender the target population of this research. Through three empirical studies, one survey and two experimental studies, it was possible to prove the moderation of self-promotion values and the power sense at aesthetics social comparison. The self-promotion values had a positive impact at social comparison, firstly by its positive correlation with social comparison orientation, and second by influencing the intensity of psychological consequences of social comparison. The power sense, on the other hand, had a negative impact on the aesthetic social comparison, minimizing its psychological consequences. This research aimed to contribute to the theory of social comparison, addressing it from the still underexplored vision of social comparison as a two-stage phenomenon, and thus cooperate to minimize the existing lack of predictive power that this phenomenon suffers, limiting its recognition as a central role in the social sciences and in marketing field. Related to this, it was proposed new strategies that can be used to minimize the negative effects of aesthetic social comparison imposed by the media in the way women perceive themselves.

A comparação social é um elemento ubíquo na sociedade, na qual os indivíduos, consciente ou inconscientemente, utilizam emoções, habilidades e opiniões dos demais para se avaliarem, se aprimorarem ou se promoverem. Por sua constante presença nas relações interpessoais e na vida das pessoas, a comparação social tem sido investigada e reconhecida a partir de uma ampla gama de consequências como emoções, julgamentos, atitudes e comportamento, e dentro deste último o comportamento de consumo. Para a melhor compreensão e aplicação da comparação social para a área de marketing, no entanto, é fundamental entender que suas consequências não ocorrem de maneira homogênea e o que influencia nessa heterogeneidade. Diante disso, esta pesquisa foi desenvolvida, buscando investigar como elementos individuais, como os valores pessoais, e variáveis associadas às relações sociais, como a sensação de poder, podem atuar no fenômeno da comparação social e em suas consequências, buscando assim contribuir para o maior reconhecimento teórico e prático deste fenômeno. Foi delimitado como campo de estudo a comparação social estética devido aos impactos psicológicos e sociais que este campo possui nos indivíduos, principalmente nas mulheres, sendo estas delimitadas como a população desta pesquisa. A partir da realização de três estudos empíricos, utilizando os métodos survey e experimental, foi possível comprovar a moderação dos valores de autopromoção e da sensação de poder na comparação social estética. Os valores de autopromoção exercem um impacto positivo na comparação social, estando correlacionados positivamente com a orientação que os indivíduos têm em se compararem, assim como estão associados com as consequências psicológicas geradas a partir da comparação. A sensação de poder, por sua vez, apresentou um impacto negativo sobre a comparação social estética, minimizando suas consequências psicológicas. A partir desta pesquisa buscou-se contribuir para a teoria da comparação social, abordando-a a partir da visão ainda pouco explorada do fenômeno de comparação como bietápico e, assim, cooperar para minimizar a existente carência de poder preditivo que a comparação social sofre, a qual limita o reconhecimento do seu papel central para as ciências sociais e para a área de marketing. Juntamente a isso pretendeu-se propor novas possíveis estratégias que possam minimizar os efeitos negativos da comparação social estética imposta pela mídia na forma como as mulheres se percebem. / Social comparison is an ubiquitous element in society, where individuals consciously or unconsciously use others emotions, skills and opinions to evaluate, to promote or to improve themselves. For its continuous presence in interpersonal relations and in people's lives, the social comparison has been investigated and recognized for a wide range of consequences such as emotions, judgments, attitudes and behavior, and also consumption behavior. To improve the comprehension and application of social comparison to the marketing area it is necessary to understand that its consequences are not homogeneous through the individuals, and what can impact this heterogeneity. Considering that, this research was developed in order to investigate how individual elements, such as personal values, and variables associated with social relations, such as the power sense, can influence the phenomenon of social comparison and its consequences. By this, we expect to contribute to the improvement of theoretical and practical recognition of social comparison phenomenon. It was delimitated as a research field the aesthetics social comparison considering its psychological e social consequences to humans, specially women, being this gender the target population of this research. Through three empirical studies, one survey and two experimental studies, it was possible to prove the moderation of self-promotion values and the power sense at aesthetics social comparison. The self-promotion values had a positive impact at social comparison, firstly by its positive correlation with social comparison orientation, and second by influencing the intensity of psychological consequences of social comparison. The power sense, on the other hand, had a negative impact on the aesthetic social comparison, minimizing its psychological consequences. This research aimed to contribute to the theory of social comparison, addressing it from the still underexplored vision of social comparison as a two-stage phenomenon, and thus cooperate to minimize the existing lack of predictive power that this phenomenon suffers, limiting its recognition as a central role in the social sciences and in marketing field. Related to this, it was proposed new strategies that can be used to minimize the negative effects of aesthetic social comparison imposed by the media in the way women perceive themselves.

A descriptive -exploratory study on the influences of age and sex on the food preferences of preschool children was undertaken to add to the knowledge of the effects of self-selection on the foods chosen and the order in which they were eaten. Twenty-eight preschool children (fourteen two-year-olds and fourteen four and one-half-year-olds) were given two trials in which they named, selected, and ate foods from a predetermined array of seven food items. The results indicate that there is a difference in the order in which the children of this study ate the food items. Both age groups selected candy first, however, the older children revealed the more middle-class value of deferred gratification by saving the candy to eat until last, while the younger children revealed the more immature tendency toward immediate gratification by eating the candy first. Another finding was that sex appeared to be a factor in the order in which foods were selected and eaten. Boys ate candy first twice as many times as girls ate candy first. While the older boys saved candy until last significantly more than the younger boys, the older girls saved candy until last significantly more than the older boys. The girls showed more maturity than the boys in this study. The other finding was that for naming the food items, the girls were able to name more items correctly than were the boys, suggesting faster language development among girls. Also age was a factor in naming the food items. The older children named more of the foods and answered rapidly, while the younger children were slower in giving names to the foods and seemed to depend frequently on touch to help confirm their identification.

The effect of time on taste threshold was examined in 30 diabetics and 30 control subjects (ages 22-30) who had participated in a sensory study 14 years previously. Detection and recognition taste thresholds for sweet (sucrose), salty (sodium chloride), sour (citric acid), and bitter (quinine sulfate) were assessed using triangle testing. Food preferences related to concentration of the stimuli in model food systems were tested using a nine-point hedonic scale. Mashed potatoes were used as the carrier for different levels of salt. A beverage composed of water, sucrose, and citric acid was varied to measure preferences for sweet and sour tastes. Demographic, health status, and selected dietary and food consumption information were also obtained. In the initial study, the diabetic group had higher detection and recognition thresholds for sweet, salty, and bitter stimuli than the control group. Although the control group still had lower thresholds for most of the stimuli (except for recognition of sour and salty), the majority of the diabetics either remained at their same taste sensitivity or improved their ability to perceive the stimuli over the 14-year period. With the exception of recognition of bitter by diabetics, both groups improved in their ability to identify taste sensations with age. Overall, the diabetic group became better at detecting sweet, sour, and salty taste stimuli between 1977 and 1991. They also became more sensitive to recognizing sweet and salty taste stimuli. For each set of food samples, a significant relationship existed between rating and sample. Samples with moderate levels of sodium chloride, citric acid, or sucrose were the most preferred . There was not a significant difference between the diabetic and control groups in their rating of the samples. Diabetic and control groups did not rate the samples significantly different. Additionally, threshold was not related significantly with rating of mashed potato samples or beverage-sour solutions. However, sucrose recognition thresholds and preference for sucrose concentration in beverage-sweet solutions were significantly related. Subjects with higher threshold values tended to rate the samples with higher concentrations of sucrose higher. There were no noteworthy correlations between the reported levels of salt consumption and salt thresholds, between sugar consumption and sucrose thresholds, nor between liking sour foods and citric acid thresholds.

El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. / Carta al editor. / Revisión por pares

THE INFLUENCE OF CENTRAL SEROTONINERGIC AND DOPAMINERGIC ACTIVITY ON NUTRITIONAL AND METABOLIC PARAMETERS MUDr. Ludmila Brunerová SUMMARY Introduction: Neuromediators dopamine and serotonin play a significant role in homeostatic and hedonic regulation of food intake, may exert direct metabolic effects and particularly serotonin influences affectivity. Their central activity could be quantified by functional tests. Common regulatory mediators of metabolism and affectivity represent an interesting research goal. Aims of study: The first aim was to describe the relationship between central serotoninergic activity measured by citalopram challenge test, affectivity, preference of macronutrients in food and metabolic profile in healthy men. The second aim was to confirm the use of sublingual apomorphine test as a functional test for assessment of central dopaminergic activity. The third aim was to reveal the relationship between central dopaminergic activity measured by sublingual apomorphine test, preference of macronutrients and metabolic profile. Methods: The study was performed on 42 healthy men (average age 43.5 ± 7.4 years and average BMI 27.4 ± 5.7 kg/mš) within 4 days with a week interval in between them. Anthropometric and...

Developing robust behavioral assays to study olfactory-driven behaviors allows for greater insight into the neural mechanisms behind them. Oftentimes, olfactory behavioral assays require a two-choice design, consistent variables, and controlled stimulus application. This can be challenging when working with marine dwelling organisms such as nudibranchs. Extensive work shows the importance of olfaction in both pre-metamorphic larval development and adult stage nudibranchs (Gastropoda, Mollusca). However, there is little research investigating how olfaction plays a role in rapidly developing, post-metamorphic juvenile nudibranchs such as Berghia stephanieae. To study olfactory-associated behaviors in juvenile Berghia, a novel behavioral microfluidic chip was designed which met the requirements for a reliable olfaction assay. Baseline motor behaviors such as general locomotion, turns, and contractions were observed. Despite individuals being raised in the same cohort, animal-to-animal variability was found in relation to their baseline behaviors. Xylene cyanol, a commonly used dye in microfluidics, was found to be aversive at a range of concentrations (0.075% - 0.025%) causing the animal to tightly contract and turn away from the stimulus. Juveniles showed no significant behavioral response to a 0.00125% dilution which was necessary to confirm a constant flow in the microfluidic chip. Juveniles showed a strong preference towards fluid that had been conditioned with their preferred food source odor, the sea anemone Exaiptasia diaphana. This was judged to be an innate preference because it occurred upon the first exposure of these animals to the odor. Serial dilution of Exaiptasia conditioned seawater (ECS) uncovered a threshold for behavioral preference of 60%. In summary, the development of this behavioral provides an opportunity to present controlled olfactory stimuli while observing the juvenile’s behaviors. This will allow future experiments to examine the neural mechanisms behind both aversive and attractive stimuli and provides a method for testing olfactory learning and memory in this species.