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tDCS AND appetite

Constantin Winker, Maimu A Rehbein, Dean Sabatinelli, Mira Dohn, Julius Maitzen, Carsten H Wolters, Volker Arolt, Markus Junghofer
The ventromedial prefrontal cortex (vmPFC) is associated with emotional states that can be characterized as positive affect. Moreover, a variety of psychiatric disorders that are associated with disturbed reactions toward reward- or safety-signaling stimuli reveal functional or structural anomalies within this area. Thus, neuromodulation of this region via transcranial direct current stimulation (tDCS) offers an attractive opportunity to noninvasively influence pleasant emotional and reward processing. Recent experiments revealed hemodynamic and electrophysiological evidence for valence specific modulations of emotional scene processing after excitatory and inhibitory tDCS of the vmPFC...
March 29, 2018: NeuroImage
Artur D Surowka, Agata Ziomber, Mateusz Czyzycki, Alessandro Migliori, Kaja Kasper, Magdalena Szczerbowska-Boruchowska
Recent studies highlight that obesity may alter the electric activity in brain areas triggering appetite and craving. Transcranial direct current brain stimulation (tDCS) has recently emerged as a safe alternative for treating food addiction via modulating cortical excitability without any high-risk surgical procedure to be utilized. As for anodal-type tDCS (atDCS), we observe increased excitability and spontaneous firing of the cortical neurons, whilst for the cathodal-type tDCS (ctDCS) a significant decrease is induced...
April 15, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Agata Ziomber, Artur Dawid Surowka, Lucyna Antkiewicz-Michaluk, Irena Romanska, Pawel Wrobel, Magdalena Szczerbowska-Boruchowska
Obesity is a chronic, multifactorial origin disease that has recently become one of the most frequent lifestyle disorders. Unfortunately, current obesity treatments seem to be ineffective. At present, transcranial direct current brain stimulation (tDCS) represents a promising novel treatment methodology that seems to be efficient, well-tolerated and safe for a patient. Unfortunately, the biochemical action of tDCS remains unknown, which prevents its widespread use in the clinical arena, although neurobiochemical changes in brain signaling and metal metabolism are frequently reported...
March 1, 2018: Metallomics: Integrated Biometal Science
Sascha Heinitz, Martin Reinhardt, Paolo Piaggi, Christopher M Weise, Enrique Diaz, Emma J Stinson, Colleen Venti, Susanne B Votruba, Eric M Wassermann, Miguel Alonso-Alonso, Jonathan Krakoff, Marci E Gluck
Background: Obesity is associated with reduced activation in the left dorsolateral prefrontal cortex (DLPFC), a region of the brain that plays a key role in the support of self-regulatory aspects of eating behavior and inhibitory control. Transcranial direct current stimulation (tDCS) is a noninvasive technique used to modulate brain activity. Objectives: We tested whether repeated anodal tDCS targeted at the left DLPFC (compared with sham tDCS) has an immediate effect on eating behavior during ad libitum food intake, resulting in weight change, and whether it might influence longer-term food intake-related appetite ratings in individuals with obesity...
December 2017: American Journal of Clinical Nutrition
Mary Katherine Ray, Maria D Sylvester, Lauren Osborn, Joel Helms, Bulent Turan, Emilee E Burgess, Mary M Boggiano
Obesity remains a major public health concern and novel treatments are needed. Transcranial direct current stimulation (tDCS) is a neuromodulation technique shown to reduce food craving and consumption, especially when targeting the dorsolateral prefrontal cortex (DLPFC) with a right anode/left cathode electrode montage. Despite the implications to treat frank (non-bingeeating) obesity, no study has tested the right anode/left cathode montage in this population. Additionally, most tDCS appetite studies have not controlled for differences in traits under DLPFC control that may influence how well one responds to tDCS...
September 1, 2017: Appetite
Claudio Georgii, Philipp Goldhofer, Adrian Meule, Anna Richard, Jens Blechert
BACKGROUND: Impulsivity has been found to be associated with overeating and obesity. Transcranial direct current stimulation (tDCS) may enhance inhibitory control while reducing food craving and intake. Thus, the aim of the present study was to investigate whether tDCS stimulation modifies food choice, craving and consumption as a function of trait impulsivity. METHODS: Forty-two predominantly healthy-weight women received active tDCS stimulation to the right dorsolateral prefrontal cortex and sham stimulation in a within participant design...
August 1, 2017: Physiology & Behavior
Cassandra J Lowe, Corita Vincent, Peter A Hall
OBJECTIVE: The primary aim of this review was to evaluate the effectiveness of noninvasive brain stimulation to the dorsolateral prefrontal cortex (dlPFC) for modulating appetitive food cravings and consumption in laboratory (via meta-analysis) and therapeutic (via systematic review) contexts. METHODS: Keyword searches of electronic databases (PubMed, Scopus, Web of Science, PsychoInfo, and EMBASE) and searches of previous quantitative reviews were used to identify studies (experimental [single-session] or randomized trials [multi-session]) that examined the effects of neuromodulation to the dlPFC on food cravings (n = 9) and/or consumption (n = 7)...
January 2017: Psychosomatic Medicine
Verena Ly, Til O Bergmann, Thomas E Gladwin, Inge Volman, Niccolo Usberti, Roshan Cools, Karin Roelofs
BACKGROUND: Instrumental action is well known to be vulnerable to affective value. Excessive transfer of affective value to instrumental action is thought to contribute to psychiatric disorders. The brain region most commonly implicated in overriding such affective biasing of instrumental action is the prefrontal cortex. OBJECTIVE: The aim of the present study was to reduce affective biasing of instrumental action using transcranial direct current stimulation (tDCS) in young healthy human volunteers...
May 2016: Brain Stimulation
Gabriela L Bravo, Albert B Poje, Iago Perissinotti, Bianca F Marcondes, Mauricio F Villamar, Ann M Manzardo, Laura Luque, Jean F LePage, Diane Stafford, Felipe Fregni, Merlin G Butler
Prader-Willi syndrome (PWS) is a neurodevelopmental genetic disorder characterized by intellectual disabilities and insatiable appetite with compulsive eating leading to severe obesity with detrimental health consequences. Transcranial direct current stimulation (tDCS) has been shown to modulate decision-making and cue-induced food craving in healthy adults. We conducted a pilot double blind, sham-controlled, multicenter study of tDCS modulation of food drive and craving in 10 adult PWS participants, 11 adult obese (OB) and 11 adult healthy-weight control (HWC) subjects...
March 2016: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
Kamila Jauch-Chara, Ferdinand Binkofski, Michaela Loebig, Kathrin Reetz, Gianna Jahn, Uwe H Melchert, Ulrich Schweiger, Kerstin M Oltmanns
Brain energy consumption induced by electrical stimulation increases systemic glucose tolerance in normal-weight men. In obesity, fundamental reductions in brain energy levels, gray matter density, and cortical metabolism, as well as chronically impaired glucose tolerance, suggest that disturbed neuroenergetic regulation may be involved in the development of overweight and obesity. Here, we induced neuronal excitation by anodal transcranial direct current stimulation versus sham, examined cerebral energy consumption with (31)P magnetic resonance spectroscopy, and determined systemic glucose uptake by euglycemic-hyperinsulinemic glucose clamp in 15 normal-weight and 15 obese participants...
June 2015: Diabetes
Jürgen Pripfl, Claus Lamm
Recent neuroscience theories suggest that different kinds of self-regulation may share a common psychobiological mechanism. However, empirical evidence for a domain general self-regulation mechanism is scarce. The aim of this study was to investigate whether focused anodal transcranial direct current stimulation (tDCS), facilitating the activity of the dorsolateral prefrontal cortex (dlPFC), acts on a domain general self-regulation mechanism and thus modulates both affective and appetitive self-regulation. Twenty smokers participated in this within-subject sham controlled study...
February 2015: Neuroscience Research
Kamila Jauch-Chara, Alina Kistenmacher, Nina Herzog, Marianka Schwarz, Ulrich Schweiger, Kerstin M Oltmanns
BACKGROUND: The dorsolateral prefrontal cortex (DLPFC) plays an important role in appetite and food intake regulation. OBJECTIVE: Because previous data revealed that transcranial direct current stimulation (tDCS) of the DLPFC reduces food cravings, we hypothesized that repetitive electric stimulation of the right DLPFC would lower food intake behavior in humans. DESIGN: In a single-blind, code-based, placebo-controlled, counterbalanced, randomized crossover experiment, 14 healthy young men with body mass index (in kg/m(2)) from 20 to 25 were examined during 8 d of daily tDCS or a sham stimulation...
October 2014: American Journal of Clinical Nutrition
Andre R Brunoni, Renério Fráguas Júnior, Andrew H Kemp, Paulo A Lotufo, Isabela M Benseñor, Felipe Fregni
Transcranial direct current stimulation (tDCS) is a promising therapy for major depression treatment, although little is known of its effects in ameliorating distinct symptoms of depression. Thus, it is important, not only to increase knowledge of its antidepressant mechanisms, but also to guide its potential use in clinical practice. Using data from a recent factorial, double-blinded, placebo-controlled trial applying tDCS-alone and combined with sertraline to treat 120 depressed outpatients over 6 wk (Brunoni et al...
January 2014: International Journal of Neuropsychopharmacology
Rafael A Montenegro, Alexandre H Okano, Felipe A Cunha, Jonas L Gurgel, Eduardo B Fontes, Paulo T V Farinatti
This study investigated whether transcranial direct current stimulation (tDCS) on dorsolateral prefrontal cortex (DLPFC) isolated or combined with aerobic exercise influenced the desire to eat, hunger, and satiety in overweight subjects. Nine volunteers underwent anodal or sham tDCS (2 mA; 20 min) over DLPFC and isocaloric exercise bouts (70%VO(2)R; ~200 kcal). The appetite sensations were evaluated by visual analogue scales at four moments: I - Baseline; II - After tDCS; III - Post-Exercise and IV - 30-min Post-Exercise...
February 2012: Appetite
Shirley Fecteau, Alvaro Pascual-Leone, David H Zald, Paola Liguori, Hugo Théoret, Paulo S Boggio, Felipe Fregni
As adult humans, we are continuously faced with decisions in which proper weighing of the risk involved is critical. Excessively risky or overly cautious decision making can both have disastrous real-world consequences. Weighing of risks and benefits toward decision making involves a complex neural network that includes the dorsolateral prefrontal cortex (DLPFC), but its role remains unclear. Repetitive transcranial magnetic stimulation studies have shown that disruption of the DLPFC increases risk-taking behavior...
June 6, 2007: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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