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1.
Child Dev ; 89(2): 663-680, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28236295

RESUMO

This study examined the transactional interplay among children's negative family representations, visual processing of negative emotions, and externalizing symptoms in a sample of 243 preschool children (Mage  = 4.60 years). Children participated in three annual measurement occasions. Cross-lagged autoregressive models were conducted with multimethod, multi-informant data to identify mediational pathways. Consistent with schema-based top-down models, negative family representations were associated with attention to negative faces in an eye-tracking task and their externalizing symptoms. Children's negative representations of family relationships specifically predicted decreases in their attention to negative emotions, which, in turn, was associated with subsequent increases in their externalizing symptoms. Follow-up analyses indicated that the mediational role of diminished attention to negative emotions was particularly pronounced for angry faces.


Assuntos
Atenção/fisiologia , Comportamento Infantil/fisiologia , Emoções/fisiologia , Expressão Facial , Conflito Familiar/psicologia , Relações Pais-Filho , Comportamento Problema , Pré-Escolar , Feminino , Seguimentos , Humanos , Masculino
2.
Obesity (Silver Spring) ; 25(2): 432-437, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-28063216

RESUMO

OBJECTIVE: To examine the impact of daily exposure to a low-energy-dense (LED) or a high-energy-dense (HED) snack food on its reinforcing value (RRV) in adolescents with healthy weight, overweight, or obesity. METHODS: A parallel-group, randomized trial was used to assess RRV of LED or HED snack food at baseline and again after exposure to that snack food daily for 2 weeks in 77 adolescents, aged 13 to 17 years. Information on eating-related subject characteristics was also collected at baseline. RESULTS: After 2 weeks of daily exposure, the RRV of the snack foods was significantly reduced in all participants, regardless of energy density or participant weight status. Among individuals who were high in dietary restraint only, those randomized to LED food found their snack food less reinforcing at baseline than those who were randomized to HED food. Baseline eating-related variables also differed as a function of weight status. CONCLUSIONS: Daily exposure to snack food in adolescents reduces the RRV of that food regardless of snack food energy density or weight status of the adolescent. This finding differs from adults, suggesting that increases in RRV of HED food after repeated exposure may develop after adolescence.


Assuntos
Ingestão de Alimentos/psicologia , Ingestão de Energia/fisiologia , Comportamento Alimentar/psicologia , Reforço Psicológico , Lanches , Adolescente , Índice de Massa Corporal , Peso Corporal/fisiologia , Dieta , Feminino , Preferências Alimentares/psicologia , Humanos , Masculino
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