本文選題：一致性 + 任務(wù)準(zhǔn)備��； 參考：《首都師范大學(xué)》2014年碩士論文

【摘要】：轉(zhuǎn)換加工中,兩個(gè)連續(xù)任務(wù)做相同反應(yīng)時(shí),在重復(fù)任務(wù)中出現(xiàn)反應(yīng)重復(fù)收益,在轉(zhuǎn)換任務(wù)中出現(xiàn)反應(yīng)重復(fù)損失。本研究借助高時(shí)間分辨率的事件相關(guān)電位(ERPs)技術(shù),采用序列雙任務(wù)程序(sequential two-task procedure),探討先行任務(wù)刺激的一致性以及任務(wù)準(zhǔn)備對(duì)反應(yīng)重復(fù)效應(yīng)的影響。 實(shí)驗(yàn)1任務(wù)1(先行任務(wù))使用單維刺激(如AbA/343),實(shí)驗(yàn)2任務(wù)1使用雙維刺激(如A5A/b4b),兩實(shí)驗(yàn)任務(wù)2中均使用中性刺激(如*6*/*E*),要求被試對(duì)中間字母的大小寫或數(shù)字的奇偶作反應(yīng)。兩個(gè)實(shí)驗(yàn)的行為結(jié)果均表明,任務(wù)1中相對(duì)于不一致刺激,對(duì)一致刺激的反應(yīng)更快,正確率更高。兩實(shí)驗(yàn)任務(wù)1相比較發(fā)現(xiàn),兩個(gè)實(shí)驗(yàn)對(duì)應(yīng)條件下的反應(yīng)時(shí)和正確率無(wú)顯著差異。任務(wù)2中,先行刺激一致性和任務(wù)準(zhǔn)備對(duì)轉(zhuǎn)換任務(wù)中的反應(yīng)重復(fù)損失沒(méi)有影響；而在重復(fù)任務(wù)中,當(dāng)有任務(wù)線索提前呈現(xiàn)時(shí),反應(yīng)重復(fù)收益不顯著,只有在無(wú)線索block中才有顯著的收益發(fā)生。實(shí)驗(yàn)1腦電結(jié)果表明,在FZ電極350-500ms的三個(gè)時(shí)窗出現(xiàn)了啟動(dòng)效應(yīng),重復(fù)任務(wù)中重復(fù)反應(yīng)序列誘發(fā)的波幅更正；在任務(wù)2刺激后的單側(cè)化準(zhǔn)備電位(LRP)上重復(fù)任務(wù)和轉(zhuǎn)換任務(wù)中都出現(xiàn)了顯著的反應(yīng)抑制增長(zhǎng)；在任務(wù)2刺激前的單側(cè)化準(zhǔn)備電位(LRP)上未出現(xiàn)顯著的反應(yīng)抑制,也未出現(xiàn)一致性對(duì)反應(yīng)抑制的調(diào)節(jié)。實(shí)驗(yàn)2腦電結(jié)果表明,當(dāng)任務(wù)1的刺激是雙維刺激時(shí),在任務(wù)2刺激前的LRP上出現(xiàn)顯著的反應(yīng)抑制,以及先行刺激一致性對(duì)反應(yīng)抑制的調(diào)節(jié),即在先行刺激一致條件下的反應(yīng)抑制更強(qiáng)。兩個(gè)實(shí)驗(yàn)中任務(wù)準(zhǔn)備對(duì)任務(wù)2刺激前的反應(yīng)抑制的影響不顯著,但是均會(huì)加快任務(wù)2刺激后LRP上的反應(yīng)抑制增長(zhǎng)的速度。 本研究的結(jié)果表明,反應(yīng)重復(fù)效應(yīng)包括啟動(dòng)和抑制兩個(gè)發(fā)生機(jī)制,但是先行刺激一致性對(duì)反應(yīng)抑制的影響可能并不是源于反應(yīng)強(qiáng)度的差異,只有當(dāng)先行刺激為雙維刺激時(shí),才會(huì)在刺激2前出現(xiàn)一致性對(duì)反應(yīng)抑制的影響。另外,任務(wù)準(zhǔn)備并非反應(yīng)抑制發(fā)生的必要前提,在無(wú)任務(wù)準(zhǔn)備的情況下反應(yīng)抑制仍然發(fā)生,但是任務(wù)準(zhǔn)備會(huì)加快刺激2后反應(yīng)抑制增長(zhǎng)的速度。
[Abstract]:In the conversion process, when two consecutive tasks do the same reaction, there is a reaction repetition benefit in the repeated task, and a reaction repetition loss occurs in the conversion task. In this study, the event-related potentials (ERPs) technique with high temporal resolution was used to investigate the consistency of pre-task stimuli and the effects of task readiness on response repetition by using sequential two-task program (sequential two-task procedure),). Task 1 (first task) used single dimensional stimulation (such as AbA/343), experiment 2 task 1 used double dimensional stimulation (such as A5A/b4b), and both tasks 2 used neutral stimuli (E. G. 6 / E*). Subjects were asked to respond to the odd and even characters of middle letters. The behavioral results of the two experiments showed that the response to consistent stimulus was faster and the accuracy was higher in task 1 than in inconsistent stimulus. Compared with task 1, there was no significant difference in the response time and accuracy of the two experiments under the corresponding conditions. In task 2, the stimulus consistency and task preparation had no effect on the repetitive loss of response in the transition task, but in the repeated task, the response repetition benefit was not significant when there was a task clue presented in advance. Only in a cue-free block does a significant return occur. In experiment 1, the results of EEG showed that there was a priming effect in the three time windows of 350-500ms at FZ electrode, and the amplitude correction induced by repeated reaction sequence in repeated tasks. After task 2 stimulation, there was significant inhibition of the growth of repeated tasks and transition tasks, but there was no significant inhibition on the response inhibition of LRP before task 2 stimulation, and no significant inhibition was found on the response inhibition of LRP before task 2 stimulation, but no significant inhibition was found in the response to LRP before task 2 stimulation, but no significant inhibition was found in the response to LRP before task 2 stimulation. There was no consistent regulation of response inhibition. The results of experiment 2 showed that when the stimulation of task 1 was a two dimensional stimulation, there was a significant inhibition of response on the LRP before the stimulation of task 2, and the regulation of the response inhibition by the consistency of the first stimulus. In other words, the response was inhibited more strongly under the condition of consistent stimulus. In both experiments, task readiness had no significant effect on the inhibition of response before task 2 stimulation, but both increased the growth rate of response inhibition on LRP after task 2 stimulation. The results of this study indicate that the response repetition effect includes two mechanisms of initiation and inhibition, but the effect of coherence on response inhibition may not be due to the difference of response intensity, only when the first stimulus is two dimensional stimulation. It was only before stimulation 2 that the effect of consistency on response inhibition appeared. In addition, task preparation is not a necessary prerequisite for the occurrence of response inhibition, but it still occurs without task preparation, but task preparation can accelerate the growth rate of response inhibition after stimulation 2.
【學(xué)位授予單位】：首都師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：B842

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 陳立翰;;單側(cè)化準(zhǔn)備電位的含義和應(yīng)用[J];心理科學(xué)進(jìn)展;2008年05期

2 姚艷珠;何先友;洪恬;;重復(fù)啟動(dòng)條件下語(yǔ)義啟動(dòng)效應(yīng)減少的機(jī)制[J];心理科學(xué);2011年04期

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本文編號(hào)：2088459