Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación

Background: Restrained eaters (RE) are individuals who restrain their food intake on a regular basis as they are frightened to gain weight. However, they tend to overeat under conditions of anxiety. It has been shown that RE possess a behavioral inhibition system that is more active in tonic terms,...

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Autores principales:	Silva,Jaime R, Livacic-Rojas,Pablo, Slachevsky C,Andrea
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2006
Materias:	Anxiety Anxiety disorders Diet Fasting
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600009
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spelling	oai:scielo:S0034-988720060006000092006-08-14Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentaciónSilva,Jaime RLivacic-Rojas,PabloSlachevsky C,Andrea Anxiety Anxiety disorders Diet Fasting Background: Restrained eaters (RE) are individuals who restrain their food intake on a regular basis as they are frightened to gain weight. However, they tend to overeat under conditions of anxiety. It has been shown that RE possess a behavioral inhibition system that is more active in tonic terms, which would partially explain their affective vulnerability. Even so, the influence of variations in the activation levels of the emotional systems on the eating behavior of a RE is still unknown. Our hypothesis is that variations of such systems will give place to two types of RE: a successful or a non-successful one. Aim: To assess the influence of variations on the activation of motivational systems in food intake of RE. Materials and methods: As part of a factorial experimental design, 105 undergraduate university students were part of an experimental test for inducting food intake. Then they reported their levels of dietary restraint and their emotional behavioral preferences. Results: Differences in the activation of motivational systems were significantly related to differences in food intake (F= 7.210; p= 0.001). Additionally, food intake for those RE with a predominant inhibition system tended to be higher than for those with a more active approach system, though the latter did not reach a significant difference (F=0.718; p=0.399). Conclusions: Although more investigations are required, our data suggest that the success of retaining the diet among the RE would depend on their profile of affective reactivity (affective style). There are putative implications for research on anorexia and obesityinfo:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.134 n.6 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600009es10.4067/S0034-98872006000600009
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Anxiety Anxiety disorders Diet Fasting
spellingShingle	Anxiety Anxiety disorders Diet Fasting Silva,Jaime R Livacic-Rojas,Pablo Slachevsky C,Andrea Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
description	Background: Restrained eaters (RE) are individuals who restrain their food intake on a regular basis as they are frightened to gain weight. However, they tend to overeat under conditions of anxiety. It has been shown that RE possess a behavioral inhibition system that is more active in tonic terms, which would partially explain their affective vulnerability. Even so, the influence of variations in the activation levels of the emotional systems on the eating behavior of a RE is still unknown. Our hypothesis is that variations of such systems will give place to two types of RE: a successful or a non-successful one. Aim: To assess the influence of variations on the activation of motivational systems in food intake of RE. Materials and methods: As part of a factorial experimental design, 105 undergraduate university students were part of an experimental test for inducting food intake. Then they reported their levels of dietary restraint and their emotional behavioral preferences. Results: Differences in the activation of motivational systems were significantly related to differences in food intake (F= 7.210; p= 0.001). Additionally, food intake for those RE with a predominant inhibition system tended to be higher than for those with a more active approach system, though the latter did not reach a significant difference (F=0.718; p=0.399). Conclusions: Although more investigations are required, our data suggest that the success of retaining the diet among the RE would depend on their profile of affective reactivity (affective style). There are putative implications for research on anorexia and obesity
author	Silva,Jaime R Livacic-Rojas,Pablo Slachevsky C,Andrea
author_facet	Silva,Jaime R Livacic-Rojas,Pablo Slachevsky C,Andrea
author_sort	Silva,Jaime R
title	Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
title_short	Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
title_full	Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
title_fullStr	Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
title_full_unstemmed	Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación
title_sort	diferencias individuales en dietantes crónicos: influencia de los sistemas motivacionales en la alimentación
publisher	Sociedad Médica de Santiago
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000600009
work_keys_str_mv	AT silvajaimer diferenciasindividualesendietantescronicosinfluenciadelossistemasmotivacionalesenlaalimentacion AT livacicrojaspablo diferenciasindividualesendietantescronicosinfluenciadelossistemasmotivacionalesenlaalimentacion AT slachevskycandrea diferenciasindividualesendietantescronicosinfluenciadelossistemasmotivacionalesenlaalimentacion
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Diferencias individuales en dietantes crónicos: Influencia de los sistemas motivacionales en la alimentación

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