Sensitivity to vocal emotions emerges in newborns at 37 weeks gestational age
Figures
Figure 1

Mismatch response (MMR) waveforms were recorded across six electrodes in different gestational age (GA) groups.
The MMR is extracted by subtracting the event-related potential (ERP) elicited by the standard stimulus (neutral condition) from the ERP evoked by the deviant stimulus (happy condition).
Figure 2

Primary mismatch response (MMR) results.
(A) Event-related potential (ERP) waveforms (averaged at the F3 and F4 electrodes) across the six gestational age (GA) groups. The time window for assessing MMR amplitude is indicated between the two vertical gray lines. (B) Violin plot illustrating MMR amplitudes in the six GA groups. Simple effect analysis was performed with pairwise comparisons, corrected using the Bonferroni method: **p<0.010, ***p<0.001.
Tables
Table 1
Epoch numbers in different conditions (mean ± standard deviation).
GA group(week) | Vocal happy | Nonvocal happy | Vocal neutral | Nonvocal neutral |
---|---|---|---|---|
35 | 53.15 ± 4.86 | 52.65 ± 6.79 | 215.55 ± 16.58 | 214.10 ± 21.80 |
36 | 51.20 ± 7.18 | 48.80 ± 11.04 | 201.90 ± 30.78 | 196.25 ± 38.24 |
37 | 48.45 ± 6.79 | 50.40 ± 5.98 | 191.40 ± 38.00 | 199.70 ± 32.30 |
38 | 48.35 ± 9.03 | 51.00 ± 6.47 | 197.95 ± 35.37 | 202.60 ± 27.40 |
39 | 49.40 ± 7.06 | 49.65 ± 8.11 | 198.35 ± 31.65 | 198.25 ± 36.47 |
40 | 49.80 ± 6.53 | 50.35 ± 5.71 | 192.95 ± 32.55 | 202.85 ± 24.42 |
Additional files
-
Supplementary file 1
Experimental sounds.
- https://cdn.elifesciences.org/articles/95393/elife-95393-supp1-v1.zip
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Source code 1
Contains the MATLAB script.
- https://cdn.elifesciences.org/articles/95393/elife-95393-code1-v1.zip
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Sensitivity to vocal emotions emerges in newborns at 37 weeks gestational age
eLife 13:RP95393.
https://doi.org/10.7554/eLife.95393.4