Dogs’ insensitivity to scaffolding behaviour in an A-not-B task provides support for the theory of natural pedagogy

Executive function plays a critical role in regulating behaviour. Behaviour which directs attention towards the correct solution leads to increased executive function performance in children, but it is unknown how other animals respond to such scaffolding behaviour. Dogs were presented with an A-not-B detour task. After learning to go through gap A to obtain the reward, the barrier was reversed, and the dogs had to inhibit their learned response and enter through gap B on the opposite side. Failure to do so is known as the perseveration error. In test trials, dogs taking part in one of two scaffolding conditions, a pointing condition, where the experimenter pointed to the new gap, and a demonstration condition, where the experimenter demonstrated the new route, were no less likely to commit the perseveration error than dogs in a control condition with no scaffolding behaviour. Dogs’ lack of responsiveness to scaffolding behaviour provides little support for suggestions that simple social learning mechanisms explains scaffolding behaviour in humans. Instead, our results suggest that the theory of natural pedagogy extends to the development of executive function in humans. This suggests that human children’s predisposition to interpret ostensive-communicative cues as informative may be an innate, species-specific adaptation.

Physiological arousal predicts gaze following in infants

According to the natural pedagogy theory, infant gaze following is based on an understanding of the communicative intent of specific ostensive cues. However, it has remained unclear how eye contact affects this understanding and why it induces gaze following behaviour. In this study, we examined infant arousal in different gaze following contexts and whether arousal levels during eye contact predict gaze following. Twenty-five infants, ages 9–10 months participated in this study. They watched a video of an actress gazing towards one of two objects and then either looking directly into the camera to make eye contact or not showing any communicative intent. We found that eye contact led to an elevation in the infants' heart rates (HRs) and that HR during eye contact was predictive of later gaze following. Furthermore, increases in HR predicted gaze following whether it was accompanied by communicative cues or not. These findings suggest that infant gaze following behaviour is associated with both communicative cues and physiological arousal.

Children's Developing Theory of Mind and Pedagogical Evidence Selection

Natural pedagogy emerges early in development, but good teaching requires tailoring evidence to learners’ knowledge. How does the ability to reason about others’ minds support early pedagogical evidence selection abilities? In three experiments (N = 205), we investigated preschool-aged children’s ability to consider others’ knowledge when selecting evidence in the service of teaching. Results from Experiment 1 revealed that four-year-olds reliably selected evidence to rectify others’ false beliefs, and provided causal explanations in their teaching, whereas three-year-olds did not. In Experiment 2, we tie children’s evidence selection abilities to Theory of Mind (ToM) development, above and beyond effects of age and numerical conservation abilities. In Experiment 3, we employed a 6-week training of children’s pedagogical evidence selection with a new teaching task, and further explored the relationship between these skills and children’s ToM abilities. We qualitatively replicated our results from Experiment 2, and report tentative evidence for a link between the pedagogical training and improvements in ToM. Together, our findings suggest important connections between reasoning about others’ minds and evidential reasoning in natural pedagogy in early childhood.