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Please use this identifier to cite or link to this item:
https://nccur.lib.nccu.edu.tw/handle/140.119/84136
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| Title: | 工作記憶在知覺意識所扮演的角色 |
| Other Titles: | The Role of Working Memory in Percpetual Awareness |
| Authors: | 徐慎謀 |
| Contributors: | 心智、大腦與學習研究中心 |
| Keywords: | 意識;注意力;工作記憶;腦磁波儀
awareness;attention;working memory;MEG |
| Date: | 2012 |
| Issue Date: | 2016-04-11 17:15:56 (UTC+8) |
| Abstract: | 現今關於意識的研究經常把意識視為一種執行控制的過程。根據此一論述，意識的功能在於能察覺並進一步監控處理腦中的認知訊息以便達成我們當下的目標。由於工作記憶也同時扮演執行控制的功能，因而被認為與意識活動息息相關。此計畫的目標即藉由行為實驗與磁波儀的研究方法探討意識與工作記憶的關係，藉此了解負責工作記憶以及意識活動的神經磁波訊號是彼此獨立運作，還是交互影響。若是彼此影響，這些作用是發生在前期的感知階段還是後期的決策階段。最後，我們將發展相關的腦磁波分析技術，並開放研究成果予學術社群以期日後能幫助解決類似的分析問題。本次計劃因而深具重要性，實驗所獲得的成果將能幫助我們進一步理解意識的本質 。本計畫的結果也具其他社會面向的影響，例如幫助我們診斷或定義無溝通能力病人如植物人其意識狀態。
In current theories and experiments, awareness has often been conceptualized as a form of executive control, whose function is to distribute precise and detailed information for guiding behavior. Given the executive roles of working memory (WM), this construct has been considered to be tightly intertwined with awareness. However, this assumption has almost never been thoroughly tested at both the behavioral and neural levels. The objective of this project is to elucidate the nature of the neural relationship between awareness and WM. The rationale of this project is that the completion of the proposed experiments will arrive at a better understanding of the nature of awareness, and in turn help refining current theories of awareness. To achieve this goal, we will conduct a series of behavioral and magneto-encephalography (MEG) experiments by pursuing the following three aims. In Aim 1, we will measure participants’ performance in a conscious perception task while concurrently manipulating WM load. In Aim 2, both attentional orienting and WM load will be simultaneously manipulated within the same task given that WM is also tightly related attention. We will then probe the extent to which WM can operate independently from awareness at the neural level or these two constructs share a similar neural source. We will also test whether Wm and awareness interact at an early, sensory, or a later, decisional stage. Lastly in Aim 3, new MEG analysis tools tailored for our experiments will be developed. We will extend linear mixed-effects modeling to MEG analysis as well as develop multivariate analysis based on our MEG data. Our proposed research is innovative, because it will clarify whether awareness and WM rely on similar resources if the “executive control” concept of consciousness is held true. Our proposed research is significant, because better definition awareness impinges on the definition of human nature. In addition to this positive impact on basic sciences, the expected outcomes will have broader societal implications, such as how conscious or unconscious thinking affects nuclear plant emergency management, as well as how to diagnose awareness states in non-communicative patients. |
| Relation: | 計畫編號 NSC101-2410-H004-088 |
| Data Type: | report |
| Appears in Collections: | [心智‧大腦與學習研究中心 ] 國科會研究計畫
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Files in This Item:
| File |
Description |
Size | Format | |
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| 101-2410-H-004-088.pdf | | 870Kb | Adobe PDF2 | 445 | View/Open |
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