Electrical signals propagate unbiased in cortex.
The greater spatial coherence of local field potentials (LFPs) compared with that of spiking activity has been attributed to frequency-dependent propagation of signals through the cortical medium. However, in this issue of Neuron, Logothetis and colleagues show that signal propagation within cortex is largely unbiased across different frequencies, thus suggesting a more functional and interpretable basis of LFP coherence.
Gilja
Vikash
V
Department of Computer Science, Stanford University, Stanford, CA 94305, USA.
Moore
Tirin
T
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D001369:Axons / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology; D006801:Humans; D009434:Neural Pathways / Q000502:physiology*; D009474:Neurons / Q000502:physiology; D010465:Perception / Q000502:physiology; D009435:Synaptic Transmission / Q000502:physiology*