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arXiv 1811.08068q-bio.NCphysics.bio-ph
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初级视觉皮层的γ波段相关性

Gamma-Band Correlations in Primary Visual Cortex

X. Liu, P. Sanz-Leon, P. A. Robinson

摘要:

利用神经场理论定量分析了到达初级视觉皮层(V1)的刺激诱发的γ波段(30 - 70 Hz)振荡的二维时空相关特性,并通过依赖于方向偏好(OP)的斑片连接进行调制。在不同的激励和测量条件下,相关函数的解析推导。预测再现了一系列已发表的实验结果,包括存在两点振荡时间互相关与神经元之间的零时滞与类似的OP,神经元的空间分离的相关性的强度的影响,和不同的刺激方向的影响。

英文摘要:

Neural field theory is used to quantitatively analyze the two-dimensional spatiotemporal correlation properties of gamma-band (30 -- 70 Hz) oscillations evoked by stimuli arriving at the primary visual cortex (V1), and modulated by patchy connectivities that depend on orientation preference (OP). Correlation functions are derived analytically under different stimulus and measurement conditions. The predictions reproduce a range of published experimental results, including the existence of two-point oscillatory temporal cross-correlations with zero time-lag between neurons with similar OP, the influence of spatial separation of neurons on the strength of the correlations, and the effects of differing stimulus orientations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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