Fig. 4: Event timing neuron time–depth organization.
From: Functional architecture of executive control and associated event-related potentials in macaques
Conventions as in Fig. 3. a Average spike rate and suppression time of neurons with ramping spiking after the target (mean: vertical line; min-max: gray-shaded rectangle) followed by suppression on successfully canceled relative to latency-matched no-stop-signal trials. SSRT-aligned recruitment was the difference in spiking between canceled and no-stop-signal trials. b Time–depth plots. Horizontal dashed lines highlight where Event Timing neurons with pre-tone ramping were concentrated in lower L3 and L5. c Modulation on successfully canceled relative to latency-matched no-stop-signal trials for early (lighter) and late (darker) SSDs of two representative neurons: n1 had narrow spikes but no layer assignment; n2 had broad spikes in L5. Spiking in shaded 50 ms before SSRT (shaded) was used for analysis. d Model comparison table for pre-SSRT activity. The best model is highlighted in green. Variation of spiking was best predicted by log(SSD). Full statistics in Supplementary Table 4. e Significant variation of spiking activity before SSRT as a function of log(SSD) with 84 neurons contributing 252 samples. f Modulation of neurons n1 and n2 with ramping before the tone. Shaded 50 ms indicates epoch analyzed. g Model comparison table for pre-tone activity. Variation of spiking was best-predicted log(Ttone). Full statistics in Supplementary Table 4. h Significant variation of spiking activity before tone as a function of log(Ttone) with 38 neurons contributing 144 samples across early, intermediate, or late Ttone.
