Decoding and predicting intentions
Decoding and predicting intentions
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DOI：
10.1111/j.1749-6632.2011.05994.x
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发表时间：
2011-01-01
期刊：
影响因子：
--
通讯作者：
Haynes, John-Dylan
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文献类型：
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作者：
Haynes, John-Dylan
关于决策结果之前是否存在大脑信号的争论由来已久，甚至在受试者相信他们有意识地做出决定之前。多变量解码的框架提供了一种新的工具，用于研究神经信号中包含的导致决策的选择预测信息。新的研究结果表明，在不同计划之间自由选择的具体结果可以从大脑活动中解释出来，不仅是在做出决定之后，甚至是在做出决定之前的几秒钟。这表明，即使在主体下定决心之前，事件的因果链也可以在主观意识之外发生。一个重要的未来研究方向是开发范式，允许对未来决策的实时预测进行反馈，以揭示这些决策是否仍然可以恢复。这将揭示早期预测性大脑信号和随后的决定之间的因果联系有多紧密。
There has been a long debate on the existence of brain signals that precede the outcome of decisions, even before subjects believe they are consciously making up their mind. The framework of multivariate decoding provides a novel tool for investigating such choice-predictive information contained in neural signals leading up to a decision. New results show that the specific outcome of free choices between different plans can be interpreted from brain activity, not only after a decision has been made, but even several seconds before it is made. This suggests that a causal chain of events can occur outside subjective awareness even before a subject makes up his/her mind. An important future line of research would be to develop paradigms that allow feedback of real-time predictions of future decisions to reveal whether such decisions can still be reverted. This would shed light on how tight the causal link is between early predictive brain signals and subsequent decisions.