Altercentric bias in preverbal infants' encoding of object kind

Human infants may exhibit an altercentric bias, where the perspective of others biases their own cognition. This bias may serve a crucial learning function in early ontogeny. This work tested the two main predictions of an altercentric bias in 14-month-old infants: (i) conceptual information should also be encoded altercentrically, and (ii) the other's perspective may completely override infants' own processing. We probed if infants detect a semantic mismatch if hidden objects are labelled incorrectly from their own, or another person's perspective. Experiment 1 found a reduced electrophysiological mismatch response (the 'N400' event-related potential) when labeling was congruent from the other's perspective compared to incongruent, though it was always incongruent for the infant. Experiment 2 found no effect of (in)congruency from the infants' perspective when labeling was always congruent from the other's. These findings demonstrate a strong altercentric bias that prioritizes encoding conceptual information from others' perspective during early development.