Fig. 4: Relationship between neuronal FRs and event occurrences. | Nature Neuroscience

Fig. 4: Relationship between neuronal FRs and event occurrences.

From: How coupled slow oscillations, spindles and ripples coordinate neuronal processing and communication during human sleep

Fig. 4

a, FRs as a function of event contingencies (target event center within ±1 s of seed event center). Green and red lines represent mean baseline-corrected FRs across sessions for coupled versus uncoupled events ± s.e.m. of condition differences (n = 20 sessions, recorded from ten individuals; left y axis). Gray lines represent grand-average ERPs of seed events (irrespective of target presence; right y axis). Note that FRs are elevated for all coupled events, but SOs and spindles without ripples also elicit significant above-baseline FRs. Horizontal orange and magenta lines indicate P < 0.05 (corrected via cluster-based permutation test). b, Time-by-time correlations between seed event FRs and target event occurrences. Correlations (Pearson’s r) are shown for 500-ms intervals between SO FRs and SO-locked spindle rates (left), SO FRs and SO-locked ripple rates (middle) and spindle FRs and spindle-locked ripple rates (right). Below diagonal: FRs precede event occurrences; above diagonal: FRs follow event occurrences. Contour, P < 0.05 (corrected via cluster-based permutation test).

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