What exactly is missing here? The sensory processing of unpredictable omissions is modulated by the specificity of expected action‐effects
What exactly is missing here? The sensory processing of unpredictable omissions is modulated by the specificity of expected action‐effects
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这里究竟缺少什么？
DOI：
10.1111/ejn.14899
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发表时间：
2020
影响因子：
3.4
通讯作者：
Widmann
中科院分区：
文献类型：
--
作者：
Schröger;Widmann
我们根据期望的结果来选择我们的动作;例如，钢琴演奏者按下某些键来产生特定的音符。人们已经很好地描述了，遗漏预测的作用效应可能会在大脑中引发预测错误信号，但是在同时发生效应器特异性（与效应器非特异性相比）预测的情况下会发生什么呢？为了回答这个问题，我们要求参与者按下左右键来生成音调A和B;基于动作-效果关联，音调的身份是可预测的或不可预测的，而很少有预期的输入被省略。重要的是，数据显示，特定于手的关联之后的遗漏可靠地引出了晚期遗漏N1（oN 1）分量，与非特定于手的关联相反，后者的晚期oN 1相当弱。实现了两次按键均产生唯一音调的附加条件。在这里，预期音调的罕见遗漏产生了早期和晚期的oN 1反应，与必须保持两个同时的动作-效果表征的条件相反，只有晚期的oN 1反应被引出。最后，省略P3（oP 3）的反应强烈引起所有省略类型没有差异，这表明，一般的期望的基础上的语气介绍（而不是语气），可能是索引在这个阶段。本研究结果强调了动作意图对遗漏感觉加工的自上而下的影响，其中非特异性（与特定）和多个（与单一）动作效果表征与早期感觉水平的加工成本相关。
We select our actions according to the desired outcomes; for instance, piano players press certain keys to generate specific musical notes. It is well‐described that the omission of a predicted action‐effect may elicit prediction error signals in the brain, but what happens in the case of simultaneous effector‐specific (by contrast to effector‐unspecific) predictions? To answer this question, we asked participants to press left and right keys to generate tones A and B; based on the action‐effect association, the tones’ identity was either predictable or unpredictable, while rarely, the expected input was omitted. Crucially, the data show that omissions following hand‐specific associations reliably elicited a late omission N1 (oN1) component, by contrast to the hand‐unspecific associations, where the late oN1 was rather weak. An additional condition where both key‐presses generated a unique tone was implemented. Here, rare omissions of the expected tone generated both early and late oN1 responses, by contrast to the condition in which two simultaneous action‐effect representations had to be maintained, where only late oN1 responses were elicited. Finally, omission P3 (oP3) responses were strongly elicited for all omission types without differences, indicating that a general expectation based on a tone presentation (rather than which tone), is likely indexed at this stage. The present results emphasize the top‐down effects of action intention on the sensory processing of omissions, where unspecific (vs. specific) and multiple (vs. single) action‐effect representations are associated with processing costs at the early sensory levels.
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链：听觉场景分析模型中碎片事件预测器之间的竞争与合作
DOI：
--
发表时间：
2011
期刊：
Annual Conference on Information Sciences and Systems
影响因子：
--
作者：
R. Mill;Tamás Bohm;A. Bendixen;I. Winkler;S. Denham
通讯作者：
S. Denham
影响因子：
3.7
作者：
Tanner D;Morgan-Short K;Luck SJ
通讯作者：
Luck SJ
影响因子：
2.9
作者：
Florian Waszak;Arvid Herwig
通讯作者：
Arvid Herwig
影响因子：
5.7
作者：
Alexander Jones;Gethin Hughes;Florian Waszak
通讯作者：
Florian Waszak
影响因子：
16.6
作者：
Yon D;Gilbert SJ;de Lange FP;Press C
通讯作者：
Press C