Table 1

Summary of the conservation of the statistical properties of the six surrogate techniques

Feature/methodUDUDDISI-DJISI-DTR-SHIFTWIN-SHUFF
ISINoNoApprox.Approx.YesApprox.
Dead-timeNoYesYesYesYesNo
Auto-correlationNoNoNoNoYesApprox.
Firing rate modulationApprox.Approx.Approx.Approx.Approx.Approx.
Spike train regularity (CV < 1; regular)NoNoApprox.Approx.YesNo
Spike train regularity (CV > 1; bursty)NoNoApprox.Approx.YesApprox.
  • The degree of conservation is marked as yes/approx./no. The dead-time conservation is evaluated based only on the results of the PPD process, otherwise on the results for all data models (Poisson, PPD, Gamma).