本文關(guān)鍵詞： 威脅信息 即時(shí)目標(biāo) 注意偏向 注意警覺 注意脫離困難　出處：《上海師范大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：個(gè)體通過將有限的注意資源聚焦在可能的威脅信息上會(huì)大大增加個(gè)體生存的幾率,威脅加工的進(jìn)化模型理論認(rèn)為對潛在威脅的加工很大程度上是刺激驅(qū)動(dòng)的,依賴于快速的皮下通道且不受當(dāng)前任務(wù)目的和意圖的影響。然而有研究表明在加工即時(shí)目標(biāo)相關(guān)的信息時(shí)會(huì)自動(dòng)獲得注意分配。注意偏向不僅會(huì)表現(xiàn)在威脅信息的加工中,同時(shí)也會(huì)出現(xiàn)在即時(shí)目標(biāo)加工中。因此,即時(shí)目標(biāo)與威脅信息同時(shí)出現(xiàn)時(shí)對威脅信息注意偏向的影響有待進(jìn)一步研究。本文通過三個(gè)實(shí)驗(yàn)分別探討即時(shí)目標(biāo)對威脅信息注意偏向的影響、閾限下即時(shí)目標(biāo)對威脅信息注意偏向的影響以及即時(shí)目標(biāo)對威脅信息注意偏向不同成分的影響。實(shí)驗(yàn)1分為實(shí)驗(yàn)1a,1b,1c三個(gè)小實(shí)驗(yàn),均采用點(diǎn)探測的范式從行為測試及ERP的角度來考察即時(shí)目標(biāo)對威脅信息注意偏向的影響。實(shí)驗(yàn)2分為2a和2b,分別探討了閾下加工條件下,威脅作為任務(wù)相關(guān)或不相關(guān)刺激時(shí),對威脅信息和即時(shí)目標(biāo)的注意偏向的特點(diǎn)。實(shí)驗(yàn)3采用改良的空間線索范式分別考察當(dāng)威脅信息作為任務(wù)相關(guān)及不相關(guān)任務(wù)時(shí)即時(shí)目標(biāo)對威脅注意偏向不同成分的影響。結(jié)果表明,在行為層面即時(shí)目標(biāo)會(huì)搶奪更多的注意資源,從而影響威脅信息的注意偏向。而在威脅同時(shí)是任務(wù)相關(guān)刺激時(shí),個(gè)體會(huì)表現(xiàn)出對威脅目標(biāo)和即時(shí)目標(biāo)的注意偏向。ERP結(jié)果表明,個(gè)體在注意加工早期已覺察到威脅信息,在注意加工的后期受到當(dāng)前任務(wù)的調(diào)節(jié)影響。閾下加工的結(jié)果表明,不管威脅是否屬于任務(wù)相關(guān)信息,都不會(huì)產(chǎn)生對威脅的注意偏向�？臻g線索范式的結(jié)果表明,即時(shí)目標(biāo)不僅會(huì)影響威脅信息注意警覺階段,同時(shí)也會(huì)影響注意脫離困難階段。
[Abstract]:By focusing the limited attention resources on the possible threat information, the individual will greatly increase the probability of survival. The evolutionary model theory of threat processing believes that the processing of potential threats is largely stimulus-driven. It relies on fast subcutaneous channels and is not affected by the purpose and intention of the current task. However, some studies have shown that attention distribution is automatically obtained when processing information related to immediate targets. Attention bias is not only reflected in the processing of threat information. At the same time, it will also appear in the processing of immediate target. The influence of immediate target and threat information on threat information attention bias needs further study. This paper discusses the effect of immediate target on threat information attention bias through three experiments. The influence of immediate target on threat information attention bias and the influence of immediate target on threat information attention bias under threshold. The effect of immediate target on attention bias of threat information was investigated from the point of view of behavioral test and ERP. Experiment 2 was divided into 2 years and 2 bs. respectively, when threats were treated as task-related or uncorrelated stimuli under subthreshold processing, The characteristics of attention bias towards threat information and immediate target. Experiment 3 uses an improved spatial clue paradigm to examine the different components of threat attention bias when threat information is used as task-related and non-related tasks. The results show that, At the behavioral level, the immediate goal grabs more attention resources, thus affecting the attention bias of threat information. When the threat is also a task-related stimulus, the individual will show an attentional bias towards the threat target and the immediate goal. ERP results show that, Individuals were aware of threat information at the early stage of attention processing and affected by the regulation of the current task at the later stage of attention processing. The results of subthreshold processing showed that whether or not the threat belonged to task-related information, The results of spatial cues paradigm show that the immediate target will not only affect the alert phase of threat information, but also affect the attention out of difficulty stage.
【學(xué)位授予單位】：上海師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：B842.3

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本文編號：1517570