Improvements to the sensitivity of gravitational clustering for multiple neuron recordings

Neural Comput. 2000 Nov;12(11):2597-620. doi: 10.1162/089976600300014863.


We outline two improvements to the technique of gravitational clustering for detection of neuronal synchrony, which are capable of improving the method's detection of weak synchrony with limited data. The advantages of the enhancements are illustrated using data with known levels of synchrony and different interspike interval distributions. The novel simulation method described can easily generate such test data. An important dependence of the sensitivity of gravitational clustering to the interspike interval distribution of the analysed spike trains is described.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Action Potentials
  • Algorithms
  • Animals
  • Cluster Analysis*
  • Computer Simulation*
  • Models, Neurological*
  • Neurons / physiology*
  • Nonlinear Dynamics
  • Synaptic Transmission / physiology*
  • Time Factors