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Wiers CE, Manza P, Wang GJ, Volkow ND. Ketogenic diet reduces a neurobiological craving signature in inpatients with alcohol use disorder. Front Nutr 2024; 11:1254341. [PMID: 38410637 PMCID: PMC10895037 DOI: 10.3389/fnut.2024.1254341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 01/10/2024] [Indexed: 02/28/2024] Open
Abstract
Background and aims Increasing evidence suggests that a ketogenic (high-fat, low-carbohydrate) diet (KD) intervention reduces alcohol withdrawal severity and alcohol craving in individuals with alcohol use disorder (AUD) by shifting brain energetics from glucose to ketones. We hypothesized that the KD would reduce a neurobiological craving signature when individuals undergoing alcohol detoxification treatment were exposed to alcohol cues. Methods We performed a secondary analysis of functional magnetic resonance data of 33 adults with an AUD who were randomized to a KD (n = 19) or a standard American diet (SA; n = 14) and underwent 3 weeks of inpatient alcohol detoxification treatment. Once per week, participants performed an alcohol cue-reactivity paradigm with functional magnetic resonance imaging. We extracted brain responses to food and alcohol cues and quantified the degree to which each set of brain images shared a pattern of activation with a recently established 'Neurobiological Craving Signature' (NCS). We then performed a group-by-time repeated measures ANOVA to test for differences in craving signature expression between the dietary groups over the three-week treatment period. We also correlated these expression patterns with self-reported wanting ratings for alcohol cues. Results For alcohol relative to food cues, there was a main effect of group, such that the KD group showed lower NCS expression across all 3 weeks of treatment. The main effect of time and the group-by-time interaction were not significant. Self-reported wanting for alcohol cues reduced with KD compared to SA but did not correlate with the NCS score. Conclusion A ketogenic diet reduces self-reported alcohol wanting, and induced lower NCS to alcohol cues during inpatient treatment for AUD. However, in the KD group alcohol wanting continued to decrease across the 3 weeks of abstinence while the NCS scores remained stable, suggesting that this cue-induced NCS may not fully capture ongoing, non-cue-induced alcohol desire.
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Affiliation(s)
- Corinde E. Wiers
- Laboratory of Neuroimaging (LNI), National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
- Center for Studies of Addiction, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Peter Manza
- Laboratory of Neuroimaging (LNI), National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Gene-Jack Wang
- Laboratory of Neuroimaging (LNI), National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Nora D. Volkow
- Laboratory of Neuroimaging (LNI), National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
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Wiers CE, Manza P, Wang GJ, Volkow ND. Ketogenic diet reduces a neurobiological craving signature in alcohol use disorder. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.09.25.23296094. [PMID: 37886532 PMCID: PMC10602038 DOI: 10.1101/2023.09.25.23296094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Background and Aims Increasing evidence suggests that a ketogenic (high-fat, low-carbohydrate) diet intervention reduces alcohol withdrawal severity and alcohol craving in individuals with alcohol use disorder (AUD) by shifting brain energetics from glucose to ketones. We hypothesized that the ketogenic diet would reduce a brain craving signature when individuals undergoing alcohol detoxification treatment were exposed to alcohol cues. Methods We performed a secondary analysis of functional magnetic resonance data of n=33 adults with an AUD were randomized to a ketogenic diet (n=19) or a standard American diet (n=14) and underwent three weeks of inpatient alcohol detoxification treatment. Once per week, participants performed an alcohol cue-reactivity paradigm with functional magnetic resonance imaging. We extracted brain responses to food and alcohol cues and quantified the degree to which each set of brain images shared a pattern of activation with a recently validated 'Neurobiological Craving Signature' (NCS). We then performed a group-by-time repeated measures ANOVA to test for differences in craving signature expression between the dietary groups over the three-week treatment period. We also correlated these expression patterns with self-reported wanting ratings for alcohol cues. Results For alcohol relative to food cues, there was a main effect of group, such that the ketogenic diet group showed lower NCS expression across all three weeks of treatment. The main effect of time and the group-by-time interaction were not significant. Self-reported wanting for alcohol cues reduced with KD compared to SA but did not correlate with the NCS score. Conclusions A ketogenic diet reduces self-reported alcohol wanting, and induced lower brain craving signatures to alcohol cues during inpatient treatment for AUD.
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Wiers CE, Vendruscolo LF, van der Veen JW, Manza P, Shokri-Kojori E, Kroll DS, Feldman DE, McPherson KL, Biesecker CL, Zhang R, Herman K, Elvig SK, Vendruscolo JCM, Turner SA, Yang S, Schwandt M, Tomasi D, Cervenka MC, Fink-Jensen A, Benveniste H, Diazgranados N, Wang GJ, Koob GF, Volkow ND. Ketogenic diet reduces alcohol withdrawal symptoms in humans and alcohol intake in rodents. SCIENCE ADVANCES 2021; 7:7/15/eabf6780. [PMID: 33837086 PMCID: PMC8034849 DOI: 10.1126/sciadv.abf6780] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/19/2021] [Indexed: 05/15/2023]
Abstract
Individuals with alcohol use disorder (AUD) show elevated brain metabolism of acetate at the expense of glucose. We hypothesized that a shift in energy substrates during withdrawal may contribute to withdrawal severity and neurotoxicity in AUD and that a ketogenic diet (KD) may mitigate these effects. We found that inpatients with AUD randomized to receive KD (n = 19) required fewer benzodiazepines during the first week of detoxification, in comparison to those receiving a standard American (SA) diet (n = 14). Over a 3-week treatment, KD compared to SA showed lower "wanting" and increased dorsal anterior cingulate cortex (dACC) reactivity to alcohol cues and altered dACC bioenergetics (i.e., elevated ketones and glutamate and lower neuroinflammatory markers). In a rat model of alcohol dependence, a history of KD reduced alcohol consumption. We provide clinical and preclinical evidence for beneficial effects of KD on managing alcohol withdrawal and on reducing alcohol drinking.
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Affiliation(s)
- Corinde E Wiers
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA.
- University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | | | | | - Peter Manza
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | | | - Danielle S Kroll
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - Dana E Feldman
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | | | | | - Rui Zhang
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - Kimberly Herman
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - Sophie K Elvig
- National Institute on Drug Abuse, Baltimore, MD 21224, USA
| | | | - Sara A Turner
- Clinical Center Nutrition Department, National Institutes of Health, Bethesda, MD 20892, USA
| | - Shanna Yang
- Clinical Center Nutrition Department, National Institutes of Health, Bethesda, MD 20892, USA
| | - Melanie Schwandt
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - Dardo Tomasi
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | | | - Anders Fink-Jensen
- Psychiatric Centre Copenhagen, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Helene Benveniste
- Department of Anesthesiology, Yale University, New Haven, CT 06519, USA
| | - Nancy Diazgranados
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - Gene-Jack Wang
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
| | - George F Koob
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA
- National Institute on Drug Abuse, Baltimore, MD 21224, USA
| | - Nora D Volkow
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD 20892, USA.
- National Institute on Drug Abuse, Baltimore, MD 21224, USA
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Mokhtari F, Rejeski WJ, Zhu Y, Wu G, Simpson SL, Burdette JH, Laurienti PJ. Dynamic fMRI networks predict success in a behavioral weight loss program among older adults. Neuroimage 2018; 173:421-433. [PMID: 29471100 DOI: 10.1016/j.neuroimage.2018.02.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 02/07/2018] [Accepted: 02/14/2018] [Indexed: 12/12/2022] Open
Abstract
More than one-third of adults in the United States are obese, with a higher prevalence among older adults. Obesity among older adults is a major cause of physical dysfunction, hypertension, diabetes, and coronary heart diseases. Many people who engage in lifestyle weight loss interventions fail to reach targeted goals for weight loss, and most will regain what was lost within 1-2 years following cessation of treatment. This variability in treatment efficacy suggests that there are important phenotypes predictive of success with intentional weight loss that could lead to tailored treatment regimen, an idea that is consistent with the concept of precision-based medicine. Although the identification of biochemical and metabolic phenotypes are one potential direction of research, neurobiological measures may prove useful as substantial behavioral change is necessary to achieve success in a lifestyle intervention. In the present study, we use dynamic brain networks from functional magnetic resonance imaging (fMRI) data to prospectively identify individuals most likely to succeed in a behavioral weight loss intervention. Brain imaging was performed in overweight or obese older adults (age: 65-79 years) who participated in an 18-month lifestyle weight loss intervention. Machine learning and functional brain networks were combined to produce multivariate prediction models. The prediction accuracy exceeded 95%, suggesting that there exists a consistent pattern of connectivity which correctly predicts success with weight loss at the individual level. Connectivity patterns that contributed to the prediction consisted of complex multivariate network components that substantially overlapped with known brain networks that are associated with behavior emergence, self-regulation, body awareness, and the sensory features of food. Future work on independent datasets and diverse populations is needed to corroborate our findings. Additionally, we believe that efforts can begin to examine whether these models have clinical utility in tailoring treatment.
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Affiliation(s)
- Fatemeh Mokhtari
- Laboratory for Complex Brain Networks, Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC, USA; Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - W Jack Rejeski
- Laboratory for Complex Brain Networks, Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC, USA; Translational Science Center, Wake Forest University, Winston Salem, NC, USA; Department of Health and Exercise Science, Wake Forest University, Winston Salem, NC, USA; Department of Geriatric Medicine, Wake Forest University, Winston Salem, NC, USA
| | - Yingying Zhu
- Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Guorong Wu
- Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sean L Simpson
- Laboratory for Complex Brain Networks, Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC, USA; Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest University School of Medicine, Winston Salem, NC, USA; Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Jonathan H Burdette
- Laboratory for Complex Brain Networks, Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC, USA; Translational Science Center, Wake Forest University, Winston Salem, NC, USA
| | - Paul J Laurienti
- Laboratory for Complex Brain Networks, Department of Radiology, Wake Forest University School of Medicine, Winston Salem, NC, USA; Translational Science Center, Wake Forest University, Winston Salem, NC, USA.
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Bailey RL. Modern foraging: Presence of food and energy density influence motivational processing of food advertisements. Appetite 2016; 107:568-574. [PMID: 27596948 DOI: 10.1016/j.appet.2016.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 08/31/2016] [Accepted: 09/01/2016] [Indexed: 11/30/2022]
Abstract
More energy dense foods are preferable from an optimal foraging perspective, which suggests these foods are more motivationally relevant due to their greater capability of fulfilling biological imperatives. This increase in motivational relevance may be exacerbated in circumstances where foraging will be necessary. This study examined how food energy density and presence of food in the immediate environment interacted to influence motivational processing of food advertisements. N = 58 adults viewed advertisements for foods varying in energy density in contexts where the advertised food was actually present in the viewing room or not. Advertisements for more energy dense foods elicited greater skin conductivity level compared to ads for less energy dense foods when food was not present. All ads elicited decreases in corrugator supercilii activation indicating positive emotional response resultant from appetitive motivational activation, though the greatest activation was exhibited toward higher energy density foods when food was present. This supports an optimal foraging perspective and has implications for healthy eating interventions.
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Affiliation(s)
- Rachel L Bailey
- Washington State University, The Edward R. Murrow College of Communication, Goertzen Hall #208, P.O. Box 642530, Pullman, WA, United States.
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Blechert J, Klackl J, Miedl SF, Wilhelm FH. To eat or not to eat: Effects of food availability on reward system activity during food picture viewing. Appetite 2016; 99:254-261. [DOI: 10.1016/j.appet.2016.01.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 12/21/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
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Brockmeyer T, Hahn C, Reetz C, Schmidt U, Friederich HC. Approach bias and cue reactivity towards food in people with high versus low levels of food craving. Appetite 2015; 95:197-202. [DOI: 10.1016/j.appet.2015.07.013] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/30/2015] [Accepted: 07/12/2015] [Indexed: 11/25/2022]
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Ferrer-Garcia M, Gutierrez-Maldonado J, Treasure J, Vilalta-Abella F. Craving for Food in Virtual Reality Scenarios in Non-Clinical Sample: Analysis of its Relationship with Body Mass Index and Eating Disorder Symptoms. EUROPEAN EATING DISORDERS REVIEW 2015; 23:371-8. [PMID: 26095041 DOI: 10.1002/erv.2375] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 04/04/2015] [Accepted: 05/13/2015] [Indexed: 11/11/2022]
Abstract
Virtual reality (VR) technology has been successfully used to study the influence of specific and contextual food-related cues on emotional, cognitive and behavioural responses in patients with eating disorders (ED) and healthy controls. Following this research line, the present study assesses the effect on reported food craving of the type of food (low calorie versus high calorie) and the presence or absence of other people (private versus social context) in VR environments. Relationships between craving and body mass index (BMI) and ED symptoms are also explored. Eighty-seven female students were exposed to four VR scenarios presented in random order: a low-calorie kitchen, a high-calorie kitchen, a low-calorie restaurant and a high-calorie restaurant. After 2 minutes of exposure to each virtual scenario, food craving was assessed. Repeated measures analyses of covariance were conducted to assess changes in food craving following exposure to the different VR environments. Time elapsed since the last meal was introduced as a covariate to control for responses produced by food deprivation. Correlation and hierarchical multiple regression analyses were also conducted to assess the relationship between reported food craving and BMI and ED symptoms. Participants experienced higher levels of food craving after exposure to high-calorie foods (in both the kitchen and restaurant environments) than after exposure to low-calorie foods. Being alone in the kitchen or with friends in the restaurant had no effect on reported craving. Overall, neither BMI nor ED symptoms were related with reported food craving; only in the restaurant with low-calorie food was a significant negative correlation found between BMI and food craving. The results suggest that cue exposure in virtual environments is an effective procedure for inducing food craving in healthy controls and may be useful as a research and therapeutic tool in clinical populations.
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Affiliation(s)
- Marta Ferrer-Garcia
- Department of Personality, Assessment, and Psychological Treatments, Universitat de Barcelona, Spain
| | - Jose Gutierrez-Maldonado
- Department of Personality, Assessment, and Psychological Treatments, Universitat de Barcelona, Spain
| | - Janet Treasure
- Institute of Psychiatry, Section of Eating Disorders, King's College London, UK
| | - Ferran Vilalta-Abella
- Department of Personality, Assessment, and Psychological Treatments, Universitat de Barcelona, Spain
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Cortisol, but not intranasal insulin, affects the central processing of visual food cues. Psychoneuroendocrinology 2014; 50:311-20. [PMID: 25265284 DOI: 10.1016/j.psyneuen.2014.09.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 09/02/2014] [Accepted: 09/06/2014] [Indexed: 11/22/2022]
Abstract
Stress glucocorticoids and insulin are important endocrine regulators of energy homeostasis, but little is known about their central interaction on the reward-related processing of food cues. According to a balanced group design, healthy food deprived men received either 40IU intranasal insulin (n=13), 30mg oral cortisol (n=12), both (n=15), or placebo (n=14). Acoustic startle responsiveness was assessed during presentation of food and non-food pictures. Cortisol enhanced startle responsiveness during visual presentation of "high glycemic" food pictures, but not during presentation of neutral and pleasant non-food pictures. Insulin had no effect. Based on the "frustrative nonreward" model these results suggest that the reward value of high glycemic food items is specifically increased by cortisol.
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Paolini BM, Laurienti PJ, Norris J, Rejeski WJ. Meal replacement: calming the hot-state brain network of appetite. Front Psychol 2014; 5:249. [PMID: 24723901 PMCID: PMC3971177 DOI: 10.3389/fpsyg.2014.00249] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/05/2014] [Indexed: 12/30/2022] Open
Abstract
There is a growing awareness in the field of neuroscience that the self-regulation of eating behavior is driven by complex networks within the brain. These networks may be vulnerable to “hot states” which people can move into and out of dynamically throughout the course of a day as a function of changes in affect or visceral cues. The goal of the current study was to identify and determine differences in the Hot-state Brain Network of Appetite (HBN-A) that exists after a brief period of food restraint followed either by the consumption of a meal replacement (MR) or water. Fourteen overweight/obese adults came to our laboratory on two different occasions. Both times they consumed a controlled breakfast meal and then were restricted from eating for 2.5 h prior to an MRI scan. On one visit, they consumed a meal replacement (MR) liquid meal after this period of food restriction; on the other visit they consumed an equal amount of water. After these manipulations, the participants underwent a resting fMRI scan. Our first study aim employed an exploratory, data-driven approach to identify hubs relevant to the HBN-A. Using data from the water condition, five regions were found to be the hubs or nodes of the HBN-A: insula, anterior cingulated cortex, the superior temporal pole, the amygdala, and the hippocampus. We then demonstrated that the consumption of a liquid MR dampened interconnectivity between the nodes of the HBN-A as compared to water. Importantly and consistent with these network data, the consumption of a MR beverage also lowered state cravings and hunger.
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Affiliation(s)
- Brielle M Paolini
- Department of Radiology, Wake Forest University School of Medicine Winston-Salem, NC, USA
| | - Paul J Laurienti
- Department of Radiology, Wake Forest University School of Medicine Winston-Salem, NC, USA ; Translational Science Center, Wake Forest University Winston-Salem, NC, USA
| | - James Norris
- Translational Science Center, Wake Forest University Winston-Salem, NC, USA ; Department of Mathematics, Wake Forest University Winston-Salem, NC, USA
| | - W Jack Rejeski
- Translational Science Center, Wake Forest University Winston-Salem, NC, USA ; Department of Health and Exercise Science, Wake Forest University Winston-Salem, NC, USA ; Department of Geriatric Medicine, Wake Forest University Winston-Salem, NC, USA
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Blechert J, Naumann E, Schmitz J, Herbert BM, Tuschen-Caffier B. Startling sweet temptations: hedonic chocolate deprivation modulates experience, eating behavior, and eyeblink startle. PLoS One 2014; 9:e85679. [PMID: 24416437 PMCID: PMC3887070 DOI: 10.1371/journal.pone.0085679] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 12/05/2013] [Indexed: 12/31/2022] Open
Abstract
Many individuals restrict their food intake to prevent weight gain. This restriction has both homeostatic and hedonic effects but their relative contribution is currently unclear. To isolate hedonic effects of food restriction, we exposed regular chocolate eaters to one week of chocolate deprivation but otherwise regular eating. Before and after this hedonic deprivation, participants viewed images of chocolate and images of high-calorie but non-chocolate containing foods, while experiential, behavioral and eyeblink startle responses were measured. Compared to satiety, hedonic deprivation triggered increased chocolate wanting, liking, and chocolate consumption but also feelings of frustration and startle potentiation during the intertrial intervals. Deprivation was further characterized by startle inhibition during both chocolate and food images relative to the intertrial intervals. Individuals who responded with frustration to the manipulation and those who scored high on a questionnaire of impulsivity showed more relative startle inhibition. The results reveal the profound effects of hedonic deprivation on experiential, behavioral and attentional/appetitive response systems and underscore the role of individual differences and state variables for startle modulation. Implications for dieting research and practice as well as for eating and weight disorders are discussed.
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Affiliation(s)
- Jens Blechert
- Department for Clinical Psychology, Psychotherapy, and Heath Psychology, University of Salzburg, Salzburg, Austria
| | - Eva Naumann
- Department for Clinical Psychology and Psychotherapy, University of Freiburg, Freiburg im Breisgau, Germany
| | - Julian Schmitz
- Department for Clinical Psychology and Psychotherapy, University of Freiburg, Freiburg im Breisgau, Germany
| | - Beate M. Herbert
- Department of Health Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
| | - Brunna Tuschen-Caffier
- Department for Clinical Psychology and Psychotherapy, University of Freiburg, Freiburg im Breisgau, Germany
- * E-mail:
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de Sá DSF, Plein DE, Schulz A, Oitzl MS, Blumenthal TD, Schächinger H. Acoustic startle reactivity while processing reward-related food cues during food deprivation: Evidence from women in different menstrual cycle phases and men. Psychophysiology 2013; 51:159-67. [DOI: 10.1111/psyp.12166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 09/27/2013] [Indexed: 11/27/2022]
Affiliation(s)
- Diana S. Ferreira de Sá
- Institute of Psychobiology; Division of Clinical Psychophysiology; University of Trier; Trier Germany
| | - Debora E. Plein
- Institute of Psychobiology; Division of Clinical Psychophysiology; University of Trier; Trier Germany
| | - André Schulz
- Research Unit INSIDE; Division of Clinical and Health Psychology; University of Luxembourg; Walferdange Luxembourg
| | - Melly S. Oitzl
- Division of Medical Pharmacology; Leiden/Amsterdam Center for Drug Research; University of Leiden; Leiden The Netherlands
- Swammerdam Institute for Life Sciences; Center for Neuroscience; University of Amsterdam; Amsterdam The Netherlands
| | - Terry D. Blumenthal
- Department of Psychology; Wake Forest University; Winston-Salem North Carolina USA
| | - Hartmut Schächinger
- Institute of Psychobiology; Division of Clinical Psychophysiology; University of Trier; Trier Germany
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13
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Meule A, Kübler A, Blechert J. Time course of electrocortical food-cue responses during cognitive regulation of craving. Front Psychol 2013; 4:669. [PMID: 24098290 PMCID: PMC3786233 DOI: 10.3389/fpsyg.2013.00669] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 09/05/2013] [Indexed: 11/13/2022] Open
Abstract
In our current obesogenic environment, exposure to visual food-cues can easily lead to craving and overeating because short-term, pleasurable effects of food intake dominate over the anticipated long-term adverse effects such as weight gain and associated health problems. Here we contrasted these two conditions during food-cue presentation while acquiring event-related potentials (ERPs) and subjective craving ratings. Female participants (n = 25) were presented with either high-calorie (HC) or low-calorie (LC) food images under instructions to imagine either immediate (NOW) or long-term effects (LATER) of consumption. On subjective ratings for HC foods, the LATER perspective reduced cravings as compared to the NOW perspective. For LC foods, by contrast, craving increased under the LATER perspective. Early ERPs (occipital N1, 150-200 ms) were sensitive to food type but not to perspective. Late ERPs (late positive potential, LPP, 350-550 ms) were larger in the HC-LATER condition than in all other conditions, possibly indicating that a cognitive focus on negative long-term consequences induced negative arousal. This enhancement for HC-LATER attenuated to the level of the LC conditions during the later slow wave (550-3000 ms), but amplitude in the HC-NOW condition was larger than in all other conditions, possibly due to a delayed appetitive response. Across all conditions, LPP amplitudes were positively correlated with self-reported emotional eating. In sum, results reveal that regulation effects are secondary to an early attentional analysis of food type and dynamically evolve over time. Adopting a long-term perspective on eating might promote a healthier food choice across a range of food types.
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Affiliation(s)
- Adrian Meule
- Department of Psychology I, Institute of Psychology, University of WürzburgWürzburg, Germany
| | - Andrea Kübler
- Department of Psychology I, Institute of Psychology, University of WürzburgWürzburg, Germany
| | - Jens Blechert
- Division of Clinical Psychology, Psychotherapy and Health Psychology, University of SalzburgSalzburg, Austria
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Rejeski WJ, Mihalko SL, Ambrosius WT, Bearon LB, McClelland JW. Weight loss and self-regulatory eating efficacy in older adults: the cooperative lifestyle intervention program. J Gerontol B Psychol Sci Soc Sci 2011; 66:279-86. [PMID: 21292809 PMCID: PMC3078758 DOI: 10.1093/geronb/gbq104] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 12/09/2010] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Using the weight efficacy lifestyle questionnaire (WEL), we examined whether a group-mediated intervention for weight loss among older, obese adults resulted in changes in self-regulatory self-efficacy for eating behavior and whether these changes mediated weight loss. METHODS This was a randomized controlled design, and 288 older adults received 1 of 3 treatments for 6 months: physical activity only (PA), weight loss + physical activity (WL + PA), or a successful aging (SA) health education program. The WEL was administered prior to randomization and again at the 6-month follow-up visit. RESULTS A significant treatment effect was observed for the WEL, F (2249) = 15.11, p < .0001, partial eta2 = .11, showing that improvement occurred only in the WL + PA group as compared with PA and SA. Changes in WEL scores partially mediated the effects of the WL + PA intervention on weight loss. DISCUSSION These results illustrate that WL + PA can be effective in improving older adults' self-efficacy for the self-regulation of eating behavior and that these changes are prospectively related to the amount of weight loss. Further research is warranted on an expanded concept of self-efficacy as well as controlled experimental studies on eating behavior in older adults.
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Affiliation(s)
- W Jack Rejeski
- Department of Health and Exercise Science, Wake Forest University, P.O. Box 7868, Winston-Salem, NC 27109, USA.
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