Jessica McClelland1, Bethan Dalton2, Maria Kekic3, Savani Bartholdy4, Iain C Campbell5, Ulrike Schmidt6. 1. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: jessica.mcclelland@kcl.ac.uk. 2. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: bethan.dalton@kcl.ac.uk. 3. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: maria.kekic@kcl.ac.uk. 4. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: savani.bartholdy@kcl.ac.uk. 5. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: iain.campbell@kcl.ac.uk. 6. Section of Eating Disorders, Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, United Kingdom. Electronic address: ulrike.schmidt@kcl.ac.uk.
Abstract
OBJECTIVE: Eating Disorders (ED) and obesity are suggested to involve a spectrum of self-regulatory control difficulties. Temporal discounting (TD) tasks have been used to explore this idea. This systematic review examines behavioural and neuroimaging TD data in ED and obesity. METHOD: Using PRISMA guidelines, we reviewed relevant articles in MEDLINE, PsycINFO and Embase from inception until 17th August 2016. Studies that reported behavioural differences in TD and/or TD neuroimaging data in ED/obesity were included. RESULTS: Thirty-one studies were included. Limited data suggest that BN, BED and obesity are associated with increased TD, whilst data in AN are mixed. Aberrant neural activity in frontostriatal circuitry is implicated. TD tasks vary widely and TD in ED/obesity may vary according to factors such as illness stage. CONCLUSION: Our findings suggest altered self-regulatory control in ED and obesity. TD tasks are heterogeneous, limiting generalisability of findings. Research into whether TD is multidimensional, along with transdiagnostic neuroimaging research is needed. Assessment of TD may be useful in psychoeducation, outcome prediction and treatment of ED/obesity. Copyright Â
OBJECTIVE: Eating Disorders (ED) and obesity are suggested to involve a spectrum of self-regulatory control difficulties. Temporal discounting (TD) tasks have been used to explore this idea. This systematic review examines behavioural and neuroimaging TD data in ED and obesity. METHOD: Using PRISMA guidelines, we reviewed relevant articles in MEDLINE, PsycINFO and Embase from inception until 17th August 2016. Studies that reported behavioural differences in TD and/or TD neuroimaging data in ED/obesity were included. RESULTS: Thirty-one studies were included. Limited data suggest that BN, BED and obesity are associated with increased TD, whilst data in AN are mixed. Aberrant neural activity in frontostriatal circuitry is implicated. TD tasks vary widely and TD in ED/obesity may vary according to factors such as illness stage. CONCLUSION: Our findings suggest altered self-regulatory control in ED and obesity. TD tasks are heterogeneous, limiting generalisability of findings. Research into whether TD is multidimensional, along with transdiagnostic neuroimaging research is needed. Assessment of TD may be useful in psychoeducation, outcome prediction and treatment of ED/obesity. Copyright Â
Authors: Sandra Sanchez-Roige; Pierre Fontanillas; Sarah L Elson; Anita Pandit; Ellen M Schmidt; Johanna R Foerster; Gonçalo R Abecasis; Joshua C Gray; Harriet de Wit; Lea K Davis; James MacKillop; Abraham A Palmer Journal: Nat Neurosci Date: 2017-12-11 Impact factor: 24.884
Authors: Joseph A. King; Fabio Bernardoni; Daniel Geisler; Franziska Ritschel; Arne Doose; Sophie Pauligk; Konrad Pásztor; Kerstin Weidner; Veit Roessner; Michael N. Smolka; Stefan Ehrlich Journal: J Psychiatry Neurosci Date: 2020-03-01 Impact factor: 6.186
Authors: Bradley M Appelhans; Simone A French; Tamara Olinger; Michael Bogucki; Imke Janssen; Elizabeth F Avery-Mamer; Lisa M Powell Journal: Appetite Date: 2018-03-15 Impact factor: 3.868