Pseudoparadoxical impulsivity in restrictive anorexia nervosa: A consequence of the logic of scarcity

Fessler, Daniel M. T.

doi:10.1002/eat.10035

Cited by 33 publications

(26 citation statements)

References 80 publications

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“…Food-restricted animals of many different species also switch from preferring less variable to more variable food sources (Caraco et al, 1980;Kacelnik and Bateson, 1996), in line with the predictions of risk-sensitive foraging theory (Stephens, 1981). Food-restricted humans become hyperactive, riskprone, and impulsive, not anhedonic or fatigued (Fessler, 2002;Holtkamp et al, 2006;Holtkamp et al, 2003). Thus, a key theoretical question is when, in 5 general, we should expect a worsening organismic state to lead to risk-aversion and passivity, and when we should expect it to lead to risk-proneness and hyperactivity.…”

Section: Introductionsupporting

confidence: 55%

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An evolutionary model of low mood states

Nettle

2009

Journal of Theoretical Biology

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A c c e p t e d m a n u s c r i p t 2 AbstractIt has been suggested that low mood in humans is an adaptive response to unpropitious circumstances, and that the anhedonia, pessimism and fatigue that often accompany it function to minimise risk until circumstances improve. While this is plausible, it would be possible to make the opposite prediction equally plausibly: individuals in bad circumstances should take greater risks in order to improve their situations. Here, I present a simple analytical model adapted from the risk-sensitive foraging literature. It shows that in dire states, individuals should be risk-prone, in poor states, risk-averse, and in good states, risk-prone again. I discuss how the various kinds of mood state observed in humans might be understood as mechanisms for adaptively adjusting behavioural risk-taking to the current situation.

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Section: Introductionsupporting

confidence: 55%

“…We have already noted the impulsivity, hyperactivity, and risk-proneness of humans who are acutely food-deprived (Fessler, 2002;Holtkamp et al, 2006;Holtkamp et al, 2003). Within mood disorders, there is a clinical state known in the literature as 'agitated' or 'excited' depression.…”

Section: Discussionmentioning

confidence: 99%

An evolutionary model of low mood states

Nettle

2009

Journal of Theoretical Biology

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“…Pero justamente el excesivo control puede llevar a la impulsividad en el caso de la AN, algo que parece paradójico pero que la restricción dietética podría provocar por mediación del sistema serotoninérgico (24).…”

Section: Discussionunclassified

“…(19), también con varones, los participantes en este estudio presentan una puntuación media (12,19) inferior a la obtenida en aquel estudio (15,15) y alejada de la que en el citado trabajo obtuvieron una muestra de varones con anorexia nerviosa (24,11).…”

Section: Discussionunclassified

Impulsividad y conducta alimentaria en varones

Jáuregui‐Lobera

Santiago

2017

Nutr Hosp

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Introduction: Impulsivity is a personality trait related with the control of behaviour and emotions and it is found in different psychopathological alterations, including those referred to eating behaviour. Objective: The aim of this study was to analyse the relationship among the infl uence of the aesthetic body shape model, eating behaviour (and risk for specifi c disorders), body mass index and impulsivity. Method: A total of 178 males were included in the study, with a mean age of 20.18 ± 2.48. Height and weight were assessed in order to obtain the body mass index. All participants fulfi lled the following questionnaires: Barratt Impulsivity Scale (BIS-11), Questionnaire of Infl uences on the Body Shape Model for males (CIMEC-V) and the Eating Attitudes Test (EAT-40). Results: With respect to possible cases of eating disorders, 5.06% were found. Scores of some items of BIS-11 correlated signifi cantly with the EAT-40 and CIMEC-V scores. Overweight participants (39.89%) showed higher level of impulsivity as well as those with EAT-40 scores above the cut-off point for that test. Conclusions: The assessment of impulsivity from a psychological point of view might be a preventive tool with regards to disordered eating behaviours. Respecting the patients with eating disorders/overweight/obesity, that assessment might be a relevant aspect in order to improve the therapeutical approach.

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“…Algunas realizan especulaciones teleoló-gicas y plantean que la actividad es un recurso adaptativo que aumenta las posibilidades de encontrar alimento (Epling & Pierce, 1996;Fessler, 2002). Otras vinculan este comportamiento con los mecanismos de reforzamiento, tal como el incremento de la actividad del sistema opioide (Aravich, Rieg, Lauterio & Doerries, 1993), el sistema dopaminérgico (Lambert & Porter, 1992), o la hipoletinemia (Exner, Hebebrand, Remschmidt, Wewetzer, Ziegler y colbs., 2000).…”

Section: Introductionunclassified

Anorexia nerviosa : ¿la rata o el diván? = Anorexia nervosa : The rator the couch?

García

2011

Acción psicol.

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ResumenUn breve resumen de la historia de las concepciones de la anorexia nerviosa destaca la pobreza de los resultados obtenidos por los tratamientos psicológicos y farmacológicos asociados a esas concepciones. Una perspectiva diferente del trastorno se encuentra en la investigación con el modelo animal análogo conocido como Anorexia Basada en la Actividad (ABA). Según este modelo la hiperactividad no se considera como una estrategia voluntaria y deliberada para quemar calorías, sino como una respuesta bio-conductual provocada por los efectos fisiológicos de la pérdida de peso. Los resultados beneficiosos de la administración de calor, que permite recuperarse a los animales, constituyen una evidencia pre-clínica del potencial terapéu-tico de la administración de calor a los pacientes con anorexia nerviosa, que fue una de las primeras recomendaciones en la historia del tratamiento de este trastorno. AbstractA review of the history of anorexia nervosa emphasizes the poor results obtained by the psychological and pharmacological treatments associated with the different changing conceptualization through time. Research with an analogous animal model known as Activity-based Anorexia (ABA) offers a different perspective of the human disorder. According to this animal model, hyperactivity is not considered to be a wilful strategy to burn calories, but a bio-behavioural response linked to the physiological effects of weight loss. The increase of ambient temperature allowed rescuing animals from ABA, constituting a pre-clinical evidence of the potential therapeutic role of heat application to anorexia nervosa patients, which was one of the first recommendations in the history of the treatment of this disorder.

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Pseudoparadoxical impulsivity in restrictive anorexia nervosa: A consequence of the logic of scarcity

Cited by 33 publications

References 80 publications

An evolutionary model of low mood states

An evolutionary model of low mood states

Impulsividad y conducta alimentaria en varones

Anorexia nerviosa : ¿la rata o el diván? = Anorexia nervosa : The rator the couch?

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