A predictive coding model of gaze shifts and the underlying neurophysiology
A predictive coding model of gaze shifts and the underlying neurophysiology
复制标题
目光转移的预测编码模型和潜在的神经生理学
DOI：
10.1080/13506285.2017.1336141
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发表时间：
2017
期刊：
影响因子：
2
通讯作者：
Michael W. Spratling
中科院分区：
文献类型：
--
作者：
Michael W. Spratling
摘要一个全面的注视控制模型必须考虑到行为和神经生理水平上的大量经验观察。本文中提出的计算模型可以模拟执行水平视线转移所需的眼睛、头部和身体的协调运动。在这样做的过程中，它再现了灵长类动物中这些不同自由度（DOF）所执行的运动之间的可预测关系。该模型还解释了生物视觉系统中伴随着大的凝视转移的扫视下冲。它也可以解释我们对稳定外部世界的感知，尽管频繁的目光转移和执行准确的记忆引导和双步扫视的能力。所提出的模型还模拟周围扫视压缩：错误定位的一个简要介绍的视觉刺激的位置，是一个扫视的目标。在神经生理学水平上，所提出的模型是一致的存在的皮质神经元调谐到视网膜，头部为中心，身体为中心，和世界为中心的位置的视觉刺激和皮质神经元，具有增益调制的视觉刺激的反应。最后，该模型还成功地解释了扫视周围感受野（RF）重新映射，这导致对当前RF位置中的刺激的响应减少，并且对在扫视之后将被RF占据的位置处出现的刺激的敏感性增加。因此，所提出的模型为这种看似多样化的现象提供了统一的解释。此外，由于所提出的模型是预测编码理论的实现，它为这些现象提供了一个单一的计算解释，并将目光转移与更广泛的框架联系起来，以了解皮层功能。
ABSTRACT A comprehensive model of gaze control must account for a number of empirical observations at both the behavioural and neurophysiological levels. The computational model presented in this article can simulate the coordinated movements of the eye, head, and body required to perform horizontal gaze shifts. In doing so it reproduces the predictable relationships between the movements performed by these different degrees of freedom (DOFs) in the primate. The model also accounts for the saccadic undershoot that accompanies large gaze shifts in the biological visual system. It can also account for our perception of a stable external world despite frequent gaze shifts and the ability to perform accurate memory-guided and double-step saccades. The proposed model also simulates peri-saccadic compression: the mis-localization of a briefly presented visual stimulus towards the location that is the target for a saccade. At the neurophysiological level, the proposed model is consistent with the existence of cortical neurons tuned to the retinal, head-centred, body-centred, and world-centred locations of visual stimuli and cortical neurons that have gain-modulated responses to visual stimuli. Finally, the model also successfully accounts for peri-saccadic receptive field (RF) remapping which results in reduced responses to stimuli in the current RF location and an increased sensitivity to stimuli appearing at the location that will be occupied by the RF after the saccade. The proposed model thus offers a unified explanation for this seemingly diverse range of phenomena. Furthermore, as the proposed model is an implementation of the predictive coding theory, it offers a single computational explanation for these phenomena and relates gaze shifts to a wider framework for understanding cortical function.
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影响因子：
3.7
作者：
De Meyer, Kris;Spratling, Michael W.
通讯作者：
Spratling, Michael W.
行为猴视觉关联皮层中眼睛位置增益场的功能结构。
DOI：
10.1152/jn.01179.2002
发表时间：
2003
期刊：
Journal of neurophysiology.
影响因子：
--
作者：
Siegel,RalphM;Raffi,Milena;Phinney,RaymondE;Turner,JessicaA;Jando,Gabor
通讯作者：
Jando,Gabor
影响因子：
56.9
作者：
ANDERSEN, RA;ESSICK, GK;SIEGEL, RM
通讯作者：
SIEGEL, RM
影响因子：
2.5
作者：
Freedman, EG;Sparks, DL
通讯作者：
Sparks, DL
影响因子：
3.7
作者：
DOMINEY, PF;ARBIB, MA
通讯作者：
ARBIB, MA