Bayerl Pierre, Neumann Heiko
University of Ulm, Department of Neural Information Processing, Oberer Eselsberg, D-89069 Ulm, Germany.
Biosystems. 2007 May-Jun;89(1-3):208-15. doi: 10.1016/j.biosystems.2006.04.018. Epub 2006 Nov 15.
We utilize a model of motion perception to link a physiological study of feature attention in cortical motion processing to a psychophysical experiment of motion perception. We explain effects of feature attention by modulatory excitation of neural activity patterns in a framework of biased competition. Our model allows us to qualitatively replicate physiological data concerning attentional modulation and to generate model behavior in a decision experiment that is consistent with psychophysical observations. Furthermore, our investigation makes predictions for future psychophysical experiments.
我们利用一种运动感知模型，将皮层运动处理中特征注意力的生理学研究与运动感知的心理物理学实验联系起来。我们在偏向竞争的框架内，通过神经活动模式的调制性兴奋来解释特征注意力的影响。我们的模型使我们能够定性地复制有关注意力调制的生理学数据，并在与心理物理学观察结果一致的决策实验中生成模型行为。此外，我们的研究对未来的心理物理学实验做出了预测。
