Active inference, attention, and motor preparation.
Active inference, attention, and motor preparation.
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DOI：
10.3389/fpsyg.2011.00218
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发表时间：
2011
影响因子：
3.8
通讯作者：
Bestmann S
中科院分区：
文献类型：
--
作者：
Brown H;Friston K;Bestmann S
感知是认知的基础，是我们信念和行动计划的基础。社论（本期）问：“什么机制，如果有的话，调解之间的知觉和认知过程？”最近有人认为，注意力可以提供这样一种机制。在本文中，我们追求的想法，行动计划（运动准备）是一个注意力的现象，针对动觉信号。这取决于运动控制作为主动推理的观点，其中本体感受信号的预测由外周运动反射实现。如果有效，主动推理表明注意力不应局限于外感受器中感知信号的最佳偏置（例如，视觉）域，但也应在运动期间偏向本体感受信号。在这里，我们调查这个想法使用经典的注意力（波斯纳）范式铸造的电机设置。特别是，我们寻找减少反应时间时，运动之前的有效相对于无效的线索。此外，我们解决了层次水平，在该层次上，假定的注意力效应表示通过独立提示的性质的运动和手用来执行it.We发现了一个显着的相互作用的有效性运动和效应器线索的反应时间。这表明，注意力偏差可能是在一个内在的参照系中，在运动层次的低水平介导的。这一发现与本体感受输入的自上而下预测的注意力启用是一致的，并且可能依赖于在视觉系统中介导定向空间注意的相同突触机制。
Perception is the foundation of cognition and is fundamental to our beliefs and consequent action planning. The Editorial (this issue) asks: “what mechanisms, if any, mediate between perceptual and cognitive processes?” It has recently been argued that attention might furnish such a mechanism. In this paper, we pursue the idea that action planning (motor preparation) is an attentional phenomenon directed toward kinesthetic signals. This rests on a view of motor control as active inference, where predictions of proprioceptive signals are fulfilled by peripheral motor reflexes. If valid, active inference suggests that attention should not be limited to the optimal biasing of perceptual signals in the exteroceptive (e.g., visual) domain but should also bias proprioceptive signals during movement. Here, we investigate this idea using a classical attention (Posner) paradigm cast in a motor setting. Specially, we looked for decreases in reaction times when movements were preceded by valid relative to invalid cues. Furthermore, we addressed the hierarchical level at which putative attentional effects were expressed by independently cueing the nature of the movement and the hand used to execute it. We found a significant interaction between the validity of movement and effector cues on reaction times. This suggests that attentional bias might be mediated at a low level in the motor hierarchy, in an intrinsic frame of reference. This finding is consistent with attentional enabling of top-down predictions of proprioceptive input and may rely upon the same synaptic mechanisms that mediate directed spatial attention in the visual system.
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影响因子：
64.8
作者：
Herrero, J. L.;Roberts, M. J.;Delicato, L. S.;Gieselmann, M. A.;Dayan, P.;Thiele, A.
通讯作者：
Thiele, A.
影响因子：
2.9
作者：
Feldman H;Friston KJ
通讯作者：
Friston KJ
DOI：
10.1037/0096-1523.25.6.1673
发表时间：
1999-12-01
影响因子：
2.1
作者：
Craighero, L;Fadiga, L;Umiltà, C
通讯作者：
Umiltà, C
影响因子：
3.7
作者：
Jentzsch, I;Leuthold, H;Ridderinkhof, KR
通讯作者：
Ridderinkhof, KR
影响因子：
2.6
作者：
Gherri, Elena;Eimer, Martin
通讯作者：
Eimer, Martin