TY - JOUR
T1 - Slowing down and taking a second look: Inhibitory deficits associated with binge eating are not food-specific
AU - Manasse, Stephanie M.
AU - Goldstein, Stephanie P.
AU - Wyckoff, Emily
AU - Forman, Evan M.
AU - Juarascio, Adrienne S.
AU - Butryn, Meghan L.
AU - Ruocco, Anthony C.
AU - Nederkoorn, Chantal
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Poor inhibitory control may contribute to the maintenance of binge eating (BE) among overweight and obese individuals. However, it is unknown whether deficits are general or specific to food (versus other attractive non-food stimuli), or whether observed deficits are attributable to increased depressive symptoms in BE groups. In the current study, we hypothesized that individuals with BE would display inhibitory control deficits, with more pronounced deficits occurring when food stimuli were used. Overweight or obese participants with (n = 25) and without (n = 65) BE completed a Stop Signal Task (SST) with distinct task blocks featuring food-specific stimuli, positive non-food stimuli, or neutral stimuli. The BE group exhibited poorer inhibitory control across SST stimuli types (p = .003, eta(2)(p) = .10), but deficits did not differ by stimuli type (p = .68, eta(2)(p) <.01). Including depression as a covariate did not significantly alter results. Results suggest individuals with BE display inhibitory control deficits compared to controls; however, deficits do not appear to be specific to stimuli type. Furthermore, inhibitory control deficits do not appear to be associated with mood disturbance in the BE group. Replication and further research is needed to guide treatment targets.
AB - Poor inhibitory control may contribute to the maintenance of binge eating (BE) among overweight and obese individuals. However, it is unknown whether deficits are general or specific to food (versus other attractive non-food stimuli), or whether observed deficits are attributable to increased depressive symptoms in BE groups. In the current study, we hypothesized that individuals with BE would display inhibitory control deficits, with more pronounced deficits occurring when food stimuli were used. Overweight or obese participants with (n = 25) and without (n = 65) BE completed a Stop Signal Task (SST) with distinct task blocks featuring food-specific stimuli, positive non-food stimuli, or neutral stimuli. The BE group exhibited poorer inhibitory control across SST stimuli types (p = .003, eta(2)(p) = .10), but deficits did not differ by stimuli type (p = .68, eta(2)(p) <.01). Including depression as a covariate did not significantly alter results. Results suggest individuals with BE display inhibitory control deficits compared to controls; however, deficits do not appear to be specific to stimuli type. Furthermore, inhibitory control deficits do not appear to be associated with mood disturbance in the BE group. Replication and further research is needed to guide treatment targets.
KW - Inhibitory control
KW - Response inhibition
KW - Stop signal task
KW - Binge eating
KW - Loss-of-control eating
U2 - 10.1016/j.appet.2015.10.025
DO - 10.1016/j.appet.2015.10.025
M3 - Article
C2 - 26522509
SN - 0195-6663
VL - 96
SP - 555
EP - 559
JO - Appetite
JF - Appetite
ER -