Theta (2–8 Hz), alpha (8–12 Hz), beta (12–35 Hz), and gamma (>35 Hz) rhythms are ubiquitous in the cortex. However, there is little understanding of whether they have similar properties and functions in different cortical areas because they have rarely been compared across them. We record neuronal spikes and local field potentials simultaneously at several levels of the cortical hierarchy in monkeys. Theta, alpha, beta, and gamma oscillations had similar relationships to spiking activity in visual, parietal, and prefrontal cortices. However, the frequencies in all bands increased up the cortical hierarchy. These results suggest that these rhythms have similar inhibitory and excitatory functions across the cortex. We discuss how the increase in frequencies up the cortical hierarchy may help sculpt cortical flow and processing.

Theta (2–8 Hz)、alpha (8–12 Hz)、beta (12–35 Hz) 和 gamma (>35 Hz) 节律在皮层中无处不在。然而，人们对它们在不同皮质区域是否具有相似的特性和功能知之甚少，因为它们之间很少进行比较。我们在猴子皮层层次的几个层次上同时记录神经元峰值和局部场电位。Theta、alpha、beta 和 gamma 振荡与视觉、顶叶和前额叶皮层的尖峰活动具有相似的关系。然而，所有频带中的频率都增加了皮质层次。这些结果表明，这些节律在整个皮层具有相似的抑制和兴奋功能。我们讨论了皮层层次上频率的增加如何帮助塑造皮层的流动和处理。