Allostatic load and executive functions in overweight adults
Por:
Ottino-González J, Jurado MA, García-García I, Caldú X, Prats-Soteras X, Tor E, Sender-Palacios MJ and Garolera M
Publicada:
1 ago 2019
Ahead of Print:
8 abr 2019
Resumen:
Background/objective: Overweight is linked to inflammatory and neuroendocrine responses potentially prompting deregulations in biological systems harmful to the brain, particularly to the prefrontal cortex. This structure is crucial for executive performance, ultimately supervising behaviour. Thus, in the present work, we aimed to test the relationship between allostatic load increase, a surrogate of chronic physiological stress, and core executive functions, such as cognitive flexibility, inhibitory control, and working memory.
Method: Forty-seven healthy-weight and 56 overweight volunteers aged from 21 to 40 underwent medical and neuropsychological examination.
Results: Overweight subjects exhibited a greater allostatic load index than healthy-weight individuals. Moreover, the allostatic load index was negatively related to inhibitory control. When separated, the link between allostatic load index and cognitive flexibility was more marked in the overweight group.
Conclusions: An overweight status was linked to chronic physiological stress. The inverse relationship between the allostatic load index and cognitive flexibility proved stronger in this group. Set-shifting alterations could sustain rigid-like behaviours and attitudes towards food.
Filiaciones:
Ottino-González J:
Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Spain
Institut de Neurociències, Universitat de Barcelona, Spain
Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Spain
Jurado MA:
Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Spain
Institut de Neurociències, Universitat de Barcelona, Spain
Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Spain
García-García I:
Montreal Neurological Institute, McGill University, Canada
Caldú X:
Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Spain
Institut de Neurociències, Universitat de Barcelona, Spain
Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Spain
Prats-Soteras X:
Departament de Psicologia Clínica i Psicobiologia, Universitat de Barcelona, Spain
Institut de Neurociències, Universitat de Barcelona, Spain
Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Spain
Tor E:
CAP Terrassa Nord, Consorci Sanitari de Terrassa, Spain
Sender-Palacios MJ:
CAP Terrassa Nord, Consorci Sanitari de Terrassa, Spain
Garolera M:
Hospital de Terrassa, Consorci Sanitari de Terrassa, Spain
Brain, Cognition and Behaviour Research Group, Consorci Sanitari de Terrassa, Spain
Green Submitted, Green Accepted
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