Functional near-infrared spectroscopy of the impact of childhood traumatic experiences on risky decisions in early adult-hood
Objective To investigate the impact of childhood traumatic experiences on individual risk-taking decisions in early adulthood using functional near-infrared spectroscopy(fNIRS),so as to provide the reference for clarifying the brain mechanisms underlying the impact of childhood trauma on individual risky decision.Methods From December 2023 to March 2024,28 chil-dren with childhood trauma experiences(trauma group)and 32 healthy college students(control group)were selected from Jining Medical University by a combination of stratified descent and convenient sampling methods.All subjects participated in the Iowa Game task fNIRS scanning.The brain activation,functional connectivity,graph theory properties(degree centrality,betweenness centrality,and local efficiency),and Receiver Operating Characteristic(ROC)analysis were performed by using pre-processing fNIRS data.Results Compared with control group,trauma group showed significantly fewer choice times in the inferior deck(Z=-0.88),and showed significantly decreased activation levels in the right frontalpolar(Z=-2.59),as well as showed significant de-creased functional connectivity between left dorsolateral prefrontal and in right dorsolateral prefrontal(Z=-3.78),and between left dorsolateral prefrontal cortex and the right frontal pole(Z=-3.68)(P＜0.05).The central index of right inferior frontal gyrus in the trauma group was higher than that in the control group,while the central index of left and right dorsolateral frontal lobes was lower than that in the control group(Z=2.13,-2.53,-2.12,P＜0.05).The centrality index of the right inferior frontal gyrus in the trau-ma group was higher than that in the control group(Z=2.47,P＜0.05).The local efficiency indicators of the right inferior frontal gyrus,left and right frontal pole in the trauma group were higher than those in the control group(Z=2.51,2.17,2.53,P＜0.05).The results of the ROC curve analysis showed that the local efficiency achieved the highest area under the curve(AUC=0.68).Conclusions Young adults with childhood trauma experience tend to choose lower loss,and the frontal pole shows a lack of activa-tion in the whole process of risk decision performance.The abnormalities in the brain connectivity and network properties might be the neural basis of excessive defense mechanisms that childhood trauma leads to risky decisions.
万方数据
维普
