Fig. 4

Outcome group differences in predicted language scores based on Mother-Stranger amplitude difference. The relationship between Mother-Stranger amplitude difference and A expressive language scores or B receptive language scores was significantly different between HR-ASD and both LR and HR-noASD groups (expressive: LR—p < 0.01; HR-noASD—p < 0.01; receptive: LR—p < 0.01; HR-noASD — p < 0.05). Blue, LR; orange, HR-NoASD; green, HR-ASD