【摘要】：網(wǎng)絡(luò)成癮是指?jìng)�(gè)體反復(fù)過度使用網(wǎng)絡(luò)導(dǎo)致的一種精神行為障礙，表現(xiàn)為對(duì)網(wǎng)絡(luò)的再度使用產(chǎn)生強(qiáng)烈的欲望，停止或減少網(wǎng)絡(luò)使用時(shí)出現(xiàn)戒斷反應(yīng)，同時(shí)可伴有精神及軀體癥狀。目前關(guān)于網(wǎng)絡(luò)成癮存在較多爭(zhēng)議，最主要的爭(zhēng)議就是網(wǎng)絡(luò)成癮究竟是不是病。關(guān)于網(wǎng)絡(luò)成癮的神經(jīng)機(jī)制，國內(nèi)外已有過很多報(bào)道。利用ERP技術(shù)研究網(wǎng)絡(luò)成癮的行為監(jiān)控機(jī)制的研究已經(jīng)有人涉獵，但尚存在一些空間可挖掘。對(duì)于網(wǎng)絡(luò)成癮的錯(cuò)誤監(jiān)控機(jī)制的研究，尚未見國內(nèi)外有報(bào)道。因此本研究利用ERP技術(shù)對(duì)網(wǎng)絡(luò)成癮的行為監(jiān)控機(jī)制和錯(cuò)誤監(jiān)控機(jī)制進(jìn)行研究。本次實(shí)驗(yàn)中，所有的被試均參加兩個(gè)任務(wù)：Go/Nogo任務(wù)和Flanker任務(wù)。在Go/Nogo任務(wù)中，兩個(gè)ERP成分N2與P3分別反映了沖突監(jiān)控及之后的反應(yīng)抑制過程。而在Flanker任務(wù)中，錯(cuò)誤反應(yīng)誘發(fā)的ERN和Pe波幅，則分別反映了錯(cuò)誤檢測(cè)及之后的錯(cuò)誤調(diào)整機(jī)制和錯(cuò)誤處理。 目的：本研究采用ERPs技術(shù)對(duì)網(wǎng)絡(luò)成癮者的行為監(jiān)控機(jī)制進(jìn)行探討，并通過比較網(wǎng)絡(luò)成癮組和正常對(duì)照組在沖突監(jiān)控、錯(cuò)誤檢測(cè)神經(jīng)機(jī)制上的異同，研究網(wǎng)絡(luò)成癮和沖突監(jiān)控與抑制、錯(cuò)誤檢測(cè)與處理的關(guān)系。 方法：從北京軍區(qū)總醫(yī)院成癮醫(yī)學(xué)科的網(wǎng)絡(luò)成癮者中選取被試17名，并選取健康志愿者17名作為對(duì)照組，兩組被試均排除精神病史、藥物成癮史和其他病史，視力或者矯正視力正常。ERPs記錄采用Go/Nogo任務(wù)和Flanker任務(wù)。記錄32導(dǎo)腦電后進(jìn)行離線分析。測(cè)量額區(qū)(FZ)額中央?yún)^(qū)(FCZ)和中央?yún)^(qū)(CZ)的N2、P3、ERN和Pe波幅的波幅和潛伏期。行為學(xué)結(jié)果用t檢驗(yàn)比較組別(網(wǎng)絡(luò)成癮組和正常對(duì)照組)差異，ERP數(shù)據(jù)則采用重復(fù)測(cè)量的多因素方差分析(RMANOVA)進(jìn)行組間比較。 結(jié)果： 1.行為學(xué)數(shù)據(jù)顯示在Go/Nogo任務(wù)和Flanker任務(wù)中，，網(wǎng)絡(luò)成癮組均表現(xiàn)出較快的反應(yīng)時(shí)，另外在Go/Nogo任務(wù)中，網(wǎng)絡(luò)成癮組海表現(xiàn)出較高的錯(cuò)誤率； 2.網(wǎng)絡(luò)成癮組組的N2、P3波幅較正常對(duì)照組均有顯著差異（F_(1,27)=4.997, p=0.034；F_(1，24)=6.164，p=0.020），而二組被試的N2、P3潛伏期則較正常對(duì)照組均沒有顯著性差異（P＞0.05）。 3.網(wǎng)絡(luò)成癮組誘發(fā)的ERN的波幅比正常對(duì)照組的波幅更小，有顯著性差異（F_(1,30)=5.396，P=0.037），兩組的Pe波幅較正常組無顯著性差異（P＞0.05）。網(wǎng)絡(luò)成癮組的ERN和Pe的潛伏期均無顯著性差異（P＞0.05） 結(jié)論： 1.網(wǎng)絡(luò)成癮組在沖突監(jiān)控方面和對(duì)沖突信息的深加工方面均存在顯著性差異；在錯(cuò)誤監(jiān)控方面存在顯著性差異。 2.網(wǎng)絡(luò)成癮組在本研究中的Go/Nogo實(shí)驗(yàn)中，表現(xiàn)為N2波幅較正常對(duì)照組的減弱和P3波幅較正常對(duì)照組的增強(qiáng)，揭示了網(wǎng)絡(luò)成癮者可能存在沖突監(jiān)控能力的障礙，在面對(duì)沖突事件時(shí)，不能很好的完成沖突的監(jiān)控和抑制； 3.網(wǎng)絡(luò)成癮組在本研究中的FLANKER實(shí)驗(yàn)中，表現(xiàn)為ERN波幅的的顯著性降低，這揭示了，網(wǎng)絡(luò)成癮組對(duì)錯(cuò)誤監(jiān)控的能力降低。
[Abstract]:Internet addiction refers to a kind of mental and behavioral disorder caused by repeated overuse of the Internet, which is manifested in a strong desire for the reuse of the Internet, stopping or reducing the withdrawal reaction when using the Internet, and can be accompanied by mental and physical symptoms. At present, there is a lot of controversy about Internet addiction, the most important dispute is whether Internet addiction is a disease or not. There have been many reports about the neural mechanism of Internet addiction at home and abroad. Some people have dabbled in the study of behavior monitoring mechanism of Internet addiction by using ERP technology, but there is still some space to be excavated. The research on the error monitoring mechanism of Internet addiction has not been reported at home and abroad. Therefore, this study uses ERP technology to study the behavior monitoring mechanism and error monitoring mechanism of Internet addiction. In this experiment, all the subjects participated in two tasks: Go/Nogo task and Flanker task. In the Go/Nogo task, the two ERP components N2 and P3 reflect the conflict monitoring and the subsequent reaction inhibition process, respectively. In Flanker task, the ERN and Pe amplitudes induced by error response reflect error detection, error adjustment mechanism and error handling, respectively. Objective: in this study, ERPs technique was used to explore the behavior monitoring mechanism of Internet addicts, and the similarities and differences of conflict monitoring and error detection neural mechanism between Internet addiction group and normal control group were compared. The relationship between Internet addiction, conflict monitoring and suppression, error detection and processing was studied. Methods: 17 Internet addicts were selected from the Department of Addiction Medicine in Beijing military region General Hospital, and 17 healthy volunteers were selected as the control group. Both groups excluded the history of mental illness, drug addiction and other medical history. The visual acuity or corrected visual acuity was normal. Go/Nogo task and Flanker task were used to record ERPs. The off-line analysis was performed after recording 32 EEG. The amplitudes and latencies of (FCZ) in the central area of (FZ) and N2, P3, ern and Pe in the central area of (CZ) were measured. The behavioral results were compared by t test (Internet addiction group and normal control group), while ERP data were compared by repeated multivariate variance analysis (RMANOVA). Result: 1. Behavioral data showed that in Go/Nogo task and Flanker task, the Internet addiction group showed faster response, in addition, in the Go/Nogo task, the Internet addiction group showed a high error rate. 2. The amplitude of N2 and P3 in the Internet addiction group was significantly different from that in the normal control group (F1, 27) = 4.999, p 鈮

本文編號(hào)：2484503