Caregiver Talk Shapes Toddler Vision: A Computational Study of Dyadic Play

• URL: http://arxiv.org/abs/2312.04118v2
• Date: Wed, 17 Jan 2024 09:43:14 GMT
• Title: Caregiver Talk Shapes Toddler Vision: A Computational Study of Dyadic Play
• Authors: Timothy Schauml\"offel, Arthur Aubret, Gemma Roig, Jochen Triesch
• Abstract summary: We propose a computational model of visual representation learning during dyadic play. We show that utterances with statistics matching those of real caregivers give rise to representations supporting improved category recognition.
• Score: 8.164232628099619
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Infants' ability to recognize and categorize objects develops gradually. The second year of life is marked by both the emergence of more semantic visual representations and a better understanding of word meaning. This suggests that language input may play an important role in shaping visual representations. However, even in suitable contexts for word learning like dyadic play sessions, caregivers utterances are sparse and ambiguous, often referring to objects that are different from the one to which the child attends. Here, we systematically investigate to what extent caregivers' utterances can nevertheless enhance visual representations. For this we propose a computational model of visual representation learning during dyadic play. We introduce a synthetic dataset of ego-centric images perceived by a toddler-agent that moves and rotates toy objects in different parts of its home environment while hearing caregivers' utterances, modeled as captions. We propose to model toddlers' learning as simultaneously aligning representations for 1) close-in-time images and 2) co-occurring images and utterances. We show that utterances with statistics matching those of real caregivers give rise to representations supporting improved category recognition. Our analysis reveals that a small decrease/increase in object-relevant naming frequencies can drastically impact the learned representations. This affects the attention on object names within an utterance, which is required for efficient visuo-linguistic alignment. Overall, our results support the hypothesis that caregivers' naming utterances can improve toddlers' visual representations.

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