The Study Of EEG And ET In Adolescents With Internet Addiction Disorder

Objective:To study the change of brain function by analysising electroencephalogram and the neurotransmitters power characteristic of internet addiction adolescences using electroencephalogram and encephalofluctuograph technology methods.Methods:There were two groups in our study, the internet addiction subjects and control subjects. Yang standard internet addiction questionnaire was used for data collection. The internet addiction subjects were right-handed adolescences (average age20.53±4.45y, range from12y to29y) who were patients in Brain Hospital of Hunan Province, and fulfilled diagnostic criteria of internet addiction. Controls were35healthy right-handed subjects (average age20.23±4.32y, range from12y to29y). The two groups matched in gender, age, education and the time limit with internet. The addiction time limit of the internet addiction subjects were ranged from0.5y to11y, averaged year4.46±2.29y.The CIAS-R scale was used for the two groups of subjects to identify the degree of Internet Addiction.The record is quiet, awake, eyes closed EEG state, the graphics of all subjects to visually read the map and the power measurement. Using SPSS17.0software to two groups of subjects with visual reading drawing results the abnormal rate of EEG abnormalities, abnormal location, extent and addiction period correlated well with the power of statistical analysis.Obtain the six neurotransmitters (y-amino butyric acid, glutamic acid,5-hydroxytryptamine, acetylcholine, norepinephrine, dopamine) power value and excitement suppression index of the two groups of subjects by encephalofluctuograph technology. Statistical analysis of two groups of six neurotransmitters power and excitement suppression index, and analysis the correlation of CIAS-R score and the index that there was a significant difference between the two groups.Result:CIAS-R scores statistical results showed that the scale score of internet addiction group increased obviously compared with the normal group and the difference was statistically significant(P<0.05).The results of EEG statistical analysis:1) addiction group and control group in visual reading drawing results:addiction group visual reading drawing abnormal rate increased significantly, the lesion is mainly frontal area, the difference was statistically significant (P<0.05); the case group of addiction life and visual reading drawing anomaly degree correlation analysis, P>0.05, prompting adolescents with internet addiction disorder of EEG abnormalities and addiction time not related2) two groups of EEG relative power results in some brain areas:addiction group than in the control group of slow wave (Delta, theta wave) relative power increased, mainly concentrated in the bilateral frontal, anterior temporal area.The results of ET statistical analysis:1) compared with the control group, the power value of dopamine and5-hydroxytryptamine and excitement suppression index decreased in the addiction group, and the difference was statistically significant (P<0.05).2) The score of CIAS-R and5-HT power value, dopamine power value and excitatory-inhibitory index showed a negative correlation (P>0.05), correlation coefficients were-0.323,-0.775,-0.252conclusion:1) EEG revealed in adolescents with internet addiction frontal, temporal brain regions of brain function in the inhibited state, the degree of inhibition and the time not related to addiction. Brain excitability is reduced is the cause of Internet addiction may cause.2) ET display of adolescents with internet addiction disorder of intracranial dopamine, serotonin5HT power is reduced, and which may be the inhibitory substance foundation of frontal, temporal lobe function in the brain.