TY - JOUR
T1 - Neural responses to food stimuli among individuals with eating and weight disorders: a systematic review of event-related potentials
AU - Chami, Rayane Antoine
AU - Cardi, Valentina
AU - Lautarescu, Alexandra
AU - Mallorqui-Bague, Nuria
AU - McLoughlin, Grainne
PY - 2019
Y1 - 2019
N2 - A systematic review was conducted to investigate event-related potentials (ERPs) in response to food and non-food stimuli among individuals with eating and weight disorders. Limiting the search to studies that have analysed ERPs relating to motivated attention and inhibitory control, 19 research papers were extracted from a systematic search in PubMed, Ovid, and Web of Science (2000–2018). An enhanced attentional bias towards food over non-food images (as indexed by P3(00) and LPP amplitudes) was evident for all populations. Individuals with binge eating disorder showed an enhanced attentional response to food cues compared to healthy controls. Inhibitory control-related ERP components (N2(00) and P3a) increased during food-specific no-go trials, but did not differentiate overweight from ‘healthy’ weight groups. The N2 amplitude to food pictures were positively correlated with caloric intake and food craving among individuals with obesity and binge eating disorder, respectively, while P3(00) was sensitive to hunger levels among overweight and obese females. The heterogeneity of stimuli/paradigms adopted, component timescales extracted, ERPs analysed, and data presented has challenged this review’s ability to produce a robust synthesis of results. Some recommendations for future research are discussed.
AB - A systematic review was conducted to investigate event-related potentials (ERPs) in response to food and non-food stimuli among individuals with eating and weight disorders. Limiting the search to studies that have analysed ERPs relating to motivated attention and inhibitory control, 19 research papers were extracted from a systematic search in PubMed, Ovid, and Web of Science (2000–2018). An enhanced attentional bias towards food over non-food images (as indexed by P3(00) and LPP amplitudes) was evident for all populations. Individuals with binge eating disorder showed an enhanced attentional response to food cues compared to healthy controls. Inhibitory control-related ERP components (N2(00) and P3a) increased during food-specific no-go trials, but did not differentiate overweight from ‘healthy’ weight groups. The N2 amplitude to food pictures were positively correlated with caloric intake and food craving among individuals with obesity and binge eating disorder, respectively, while P3(00) was sensitive to hunger levels among overweight and obese females. The heterogeneity of stimuli/paradigms adopted, component timescales extracted, ERPs analysed, and data presented has challenged this review’s ability to produce a robust synthesis of results. Some recommendations for future research are discussed.
KW - Eating disorders
KW - attentional allocation
KW - eating behaviour
KW - event-related potential
KW - inhibitory control
KW - weight disorders
UR - http://www.scopus.com/inward/record.url?scp=85068464883&partnerID=8YFLogxK
U2 - 10.1080/09540261.2019.1622515
DO - 10.1080/09540261.2019.1622515
M3 - Review article
SN - 0954-0261
VL - 31
SP - 318
EP - 331
JO - International Review of Psychiatry
JF - International Review of Psychiatry
IS - 4
ER -