| With the development of the economy and the progress of the society,food is extremely abundant,people are surrounded by all kinds of food,and the temptation of food is everywhere.Many literatures show that cognitive training can help individuals better manage their eating behavior,and methods such as food inhibition control training and attention bias training are more effective for diet management,and fewer studies have explored the effects of suppression training and attention training on brain activity.The present study selects normal-weight female subjects for 5 consecutive days of inhibition training or attention training to explore its influence on the behavioral aspects and brain response of food inhibition,trying to answer this question through two experiments.Study 1 adopted a mixed experimental design before and after testing.26 normal women were selected and divided into two groups,14 in the inhibition training group and 12 in the non-intervention group.The inhibition training group performed a 15-minute inhibition training intervention for 5 consecutive days,and the non-intervention group did key-press tasks that were not related to inhibition.The food Go/no-go task was used to measure the changes in the inhibition ability of the two groups of subjects before and after the inhibition training,the food scoring task and the food selection task were used to evaluate the changes in individual eating behavior before and after the intervention,and the ERP technology was used to explore the changes in the brain response before and after the inhibition training.It was found that in the food Go/no-go task,the reaction time of the inhibition training group under the Go condition was significantly lower than that of the pre-test,and no significant difference was found in other tasks.The statistical analysis of the N2 and P3 amplitudes under No-go conditions showed that the N2 amplitude of the inhibition training group was significantly greater than the pre-test,and the P3 amplitude was significantly smaller than the pre-test.The results showed that inhibition training intervention for 5 consecutive days improved women’s ability to inhibit high-calorie food cues,but did not change women’s evaluation of food cues and their food choice behavior.Study 2 still uses a mixed experimental design of pre-test and post-test.25 normal women are selected and divided into two groups.There are 13 in the training group and 12 in the non-intervention group.The attention training group performed attention training intervention for 15 minutes a day for 5 consecutive days,and the non-intervention group did key-press tasks that were not related to attention.The food Go/no-go task was used to measure the changes in the two groups of participants’inhibition ability before and after the training,the food scoring task and the food selection task were used to evaluate the changes in individual eating behavior before and after the intervention,and the ERP technology was used to explore the changes in the brain response before and after the attention bias training.The results found that in the food picture selection task,women in the attention training group chose more low-calorie food pictures than those in the non-intervention group,but the inhibitory ability and evaluation of food cues did not change.Analyzing the amplitude of N2 and P3 under No-go conditions,no significant changes were found.This result shows that attention training will affect women’s food choice behavior,but will not affect women’s ability to inhibit food cues.In summary,inhibition control training improves the individual’s ability to inhibit high-calorie food cues and the inhibition efficiency(larger N2 wave amplitude and smaller P3 wave amplitude).Attention training could change food choice behaviors,and women choose more low-calorie foods after training.But no effect of attention training on individuals’ ability to inhibit high-calorie food cues has been found temporarily. |
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