The brain is composed of billions of neurons, the elementary units of neuronal information
processing. The neocortex, which is critical to most higher brain functions, is a highly …

The statistical analysis of two simultaneously observed trains of neuronal spikes is
described, using as a conceptual framework the theory of stochastic point processes. The …

Sensory and cognitive processing relies on the concerted activity of large populations of
neurons. The advent of modern experimental techniques like two-photon population calcium …

It has been proposed that cortical neurons organize dynamically into functional groups (cell
assemblies) by the temporal structure of their joint spiking activity. Here, we describe a novel …

Experiments in sensory neurophysiology often record action potential arrival times of nerve
cells resulting from spontaneous or stimulus-evoked activity. When all action potentials are …

Simultaneous and separable extracellular recording of substantial populations of neurons
under chronic and behavioral conditions is becoming experimentally feasible. We have …

We consider several measures for the correlation of firing activity among different neurons,
based on coincidence counts obtained from simultaneously recorded spike trains. We obtain …

1. We reexamine the possibilities for analyzing and interpreting the time course of
correlation in spike trains simultaneously and separably recorded from two neurons. 2. We …

Recent advances in the technology of multiunit recordings make it possible to test Hebb's
hypothesis that neurons do not function in isolation but are organized in assemblies. This …

Multispike trains are encountered often, either purposely or inadvertently, when one records
from neural populations. This paper focuses on techniques for detecting and identifying the …