Fig. 11.

Breakdown of infants showing novelty or habituation responses per modality (NIRS/EEG) and age point (1, 5, 18 months). As can be seen, the proportion of infants showing robust novelty and habituation responses in both NIRS and EEG increases with age. The proportion of infants who show a habituation or novelty response in only NIRS or EEG decreases with age, as does the proportion who shows no novelty or habituation response in either modality. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)