The LFPs is a broadband signal that captures variations of neural population activity over a wide range of time scales. The range of time scales available in LFPs is particularly interesting from the neural coding point of view because it opens up the possibility to investigate whether there are privileged time scales for information processing, a question that has been hotly debated over the l...

Single neurons carry out important sensory and motor functions related to the larger networks in which they are embedded. Understanding the relationships between single-neuron spiking and network activity is therefore of great importance and the latter can be readily estimated from low-frequency brain signals known as local field potentials (LFPs). In this work we examine a number of issues rel...

Affiliations: 1 Graz University of Technology Institute for Theoretical Computer Science Inffeldgasse 16b/I 8010 Graz, Austria 2 Max Planck Institute for Biological Cybernetics Spemannstrasse 38 72076 Tübingen, Germany 3 Imaging Science and Biomedical Engineering University of Manchester Manchester, United Kingdom Page 1 of 68 Articles in PresS. J Neurophysiol (December 26, 2007). doi:10.1152/j...

In this issue of Neuron, Katzner et al. use a combination of multielectrode recordings and optical imaging to determine the spatial extent of local field potential (LFP) activity in primary visual cortex. By estimating the orientation selectivity of stimulus-evoked LFP activity from the map of orientation preference obtained using optical imaging, they find that LFP selectivity is best fit usin...

The frequency profiles of various extracellular field oscillations are known to reflect functional brain states, yet we lack detailed explanations of how these brain oscillations arise. Of particular clinical relevance are the high-frequency oscillations (HFOs) associated with interictal events and the onset of seizures. These time periods are also when pyramidal firing appears to be vetoed by ...