Fig. 5: Spectral parameterization resolved in time and detection of theta oscillations.
From: Theta-phase locking of single neurons during human spatial memory
A We utilized Spectral Parameterization Resolved in Time (SPRiNT61) to analyze power spectra of the local field potentials in time steps of 500 ms. For each power spectrum (1–40 Hz; black), SPRiNT provided a fit to its aperiodic component (blue line) and a final fit to the original power spectrum (dotted red line). We grouped time windows into those with high versus low aperiodic slopes (median split). We also grouped them into time windows with versus without clear theta oscillations (red and black, respectively) based on whether Bycycle detected an oscillation using the features of individual cycles62. B Example power spectrum to illustrate the aperiodic and final fit. Black line, power spectrum; blue line, aperiodic fit; dotted red line, final fit; gray area, theta-frequency range. Source data are provided as a Source Data file.
