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應(yīng)用動(dòng)態(tài)因果模型研究閱讀神經(jīng)網(wǎng)絡(luò)背、腹側(cè)通路的協(xié)作機(jī)制

發(fā)布時(shí)間:2018-05-01 17:19

  本文選題:視覺詞匯閱讀 + 動(dòng)態(tài)因果模型。 參考:《心理科學(xué)進(jìn)展》2015年05期


【摘要】:在神經(jīng)網(wǎng)絡(luò)的最新取向下,探討閱讀腦機(jī)制中背側(cè)和腹側(cè)通路的協(xié)作機(jī)制,是解決語(yǔ)言認(rèn)知神經(jīng)科學(xué)多個(gè)理論問題共同面臨的焦點(diǎn)。本項(xiàng)目擬通過兩個(gè)腦功能成像實(shí)驗(yàn),建構(gòu)漢字閱讀的動(dòng)態(tài)因果模型,系統(tǒng)地考察漢字閱讀的神經(jīng)網(wǎng)絡(luò),以及閱讀網(wǎng)絡(luò)中背、腹側(cè)通路的協(xié)作機(jī)制。實(shí)驗(yàn)一利用快速適應(yīng)實(shí)驗(yàn)范式的優(yōu)點(diǎn),識(shí)別和考察漢字閱讀涉及的認(rèn)知成分所對(duì)應(yīng)的功能腦區(qū),以及腦區(qū)聯(lián)結(jié)形成的神經(jīng)回路,并建構(gòu)漢字閱讀的動(dòng)態(tài)因果模型;實(shí)驗(yàn)二進(jìn)一步考察在刺激屬性(語(yǔ)音和語(yǔ)義信息)和任務(wù)要求下閱讀腦區(qū)的動(dòng)態(tài)激活及相互作用。通過不同任務(wù)下的模型對(duì)比,重點(diǎn)探討閱讀網(wǎng)絡(luò)的腦區(qū)聯(lián)結(jié)模式變化,尤其是背、腹側(cè)通路受刺激和任務(wù)影響時(shí)的協(xié)作機(jī)制。研究結(jié)果將為揭示閱讀的神經(jīng)生理模型、解決語(yǔ)言特異性腦區(qū)激活的爭(zhēng)論等理論問題提供直接的證據(jù),還能為語(yǔ)言教學(xué)、閱讀障礙矯治、以及臨床應(yīng)用提供理論基礎(chǔ)與指導(dǎo)。
[Abstract]:Under the latest orientation of neural network, it is the focus of solving many theoretical problems of language cognitive neuroscience to explore the cooperative mechanism of dorsal and ventral pathways in the mechanism of reading brain. In this project, two brain functional imaging experiments were conducted to construct a dynamic causal model for Chinese character reading, and to investigate systematically the neural network of Chinese character reading and the cooperative mechanism of the dorsal and ventral pathways in the reading network. Experiment one uses the advantage of fast adaptation paradigm to identify and investigate the functional brain region corresponding to the cognitive components involved in Chinese character reading and the neural circuit formed by the brain region connection, and to construct a dynamic causal model of Chinese character reading. Experiment 2 further examined the dynamic activation and interaction of the reading brain under the stimulus attributes (phonological and semantic information) and task requirements. Through the comparison of models under different tasks, this paper focuses on the changes of brain connection patterns in the reading network, especially the cooperative mechanism when the dorsal and ventral pathways are stimulated and affected by tasks. The results will provide direct evidence for revealing the neurophysiological model of reading, solving the debate on the activation of language specific brain regions, and also provide theoretical basis and guidance for language teaching, correction of reading disorders, and clinical application.
【作者單位】: 陜西省行為與認(rèn)知神經(jīng)科學(xué)重點(diǎn)實(shí)驗(yàn)室陜西師范大學(xué)心理學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(31400966,31171077) 教育部人文社科青年基金項(xiàng)目(14YJC190019)
【分類號(hào)】:B842

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王小娟;楊劍峰;舒華;;獲得性閱讀障礙的“主要系統(tǒng)”假說[J];心理科學(xué)進(jìn)展;2008年06期

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 曹燕翔;王曉怡;徐s,

本文編號(hào):1830344


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