marginally significantp = 0.077
The simple-effects test showed that the P3a amplitude under high-calorie food in the NPSS-F group was much larger than that under low-calorie food ( p = 0.043), and the P3a amplitude in the control group under low-calorie food was larger (marginally significant) than that in the NPSS-F group ( p = 0.077) and the obese group ( p = 0.058).