Fig. 3: Frontal sleep spindles and mid-latency memory effects in the spindle subgroups.
From: Memory for nonadjacent dependencies in the first year of life and its relation to sleep
a Fast sleep spindles (mean ± SEM) during NonREM sleep of the post-encoding nap recorded over the left frontal (F3) and mid-frontal (FZ) brain regions in the two spindle subgroups, with mean peak-to-peak amplitudes of 35.83 µV (SD = 4.64) in the low-spindle subgroup (N = 24 infants) and 51.86 µV (SD = 6.86) in the high-spindle subgroup (N = 24 infants). For spindle number and spindle density, see Supplementary Table 4. b ERPs from suffixes in regular (black lines) and irregular (grey lines) NAD phrases with new verb stems and the N400-like memory effect for new verb stems in the low- and high-spindle subgroups. CPO as in Fig. 2d. The mid-parietal-occipital (MPO) region included the PZ, O1, and O2 positions. Voltage maps as in 2b. c ERPs from suffixes in regular and irregular NAD phrases with old verb stems in the spindle subgroups, the N400-like memory effect for phrases with old verb stems in the low-spindle subgroup, and the left FCMR for phrases with old verb stems in the high spindle subgroup. CPO as in Fig. 2d. The left frontal-central (LFC) region included the F7, F3, FC3, and C3 positions. Voltage maps as in 2b. Source data are provided as a Source Data file.
