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Object-centric interactions provide rich learning moments for young children, including opportunities to discover word meanings. Children’s first-person object handling experiences, in particular, form a key source of input—one that varies across cultures and across development. Using daylong photo streams from child-worn cameras, we analyze &gt;17k images to identify the frequency and targets of child object handling across the first four years in two small-scale subsistence farming communities on opposite sides of the globe (Rossel Papuan and Tseltal Mayan). Overall, we see general consistency in the distribution of object categories (e.g., consumables, mealtime tools, natural objects, etc.) handled by children across cultures and age, likely reflecting stable properties of children’s physical environments and day-to-day routines. However, the exact objects available to children vary both within and across communities and diversify with age. These various distributions of handling patterns are discussed in their relation to potential consequences for early learning.

CogSci 2022

Sticks, leaves, buckets, and bowls: Distributional patterns of children&#39;s at-home object handling in two subsistence societies

Object-centric interactions provide rich learning moments for young children, including opportunities to discover word meanings. Children’s first-person object handling experiences, in particular, form a key source of input—one that varies across cultures and across development. Using daylong photo streams from child-worn cameras, we analyze >17k images to identify the frequency and targets of child object handling across the first four years in two small-scale subsistence farming communities on opposite sides of the globe (Rossel Papuan and Tseltal Mayan). Overall, we see general consistency in the distribution of object categories (e.g., consumables, mealtime tools, natural objects, etc.) handled by children across cultures and age, likely reflecting stable properties of children’s physical environments and day-to-day routines. However, the exact objects available to children vary both within and across communities and diversify with age. These various distributions of handling patterns are discussed in their relation to potential consequences for early learning.

Sticks, leaves, buckets, and bowls: Distributional patterns of children's at-home object handling in two subsistence societies

technical paper

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Predicting Fixation Locations in 43 Languages based on Perceptual Constraints and Information Theory

In two eye-tracking pilots during reading, we investigated real-time processing of formality-register congruence and subject-verb morphosyntactic congruence, and their relation. Participants read, in German, two context sentences conveying a formal or informal situation, followed by a target sentence containing a high- or low-register verb (e.g., Engl. transl. "The policeman detained the activist" vs. "The policeman grabbed the activist") which matched or mismatched context formality. The second pilot additionally manipulated subject-verb morphosyntactic congruence (e.g., Engl. transl. "*The policeman detain the activist"; "*The policeman grabbed the activist"). We observed main effects of formality-register and morphosyntactic congruence on verb reading times, as well as an interaction effect at the post-verbal object noun. Higher degrees of context and target sentence formality resulted in longer reading times. Ongoing investigation will further clarify our pilot findings, which suggest some interference between formality-register and morphosyntactic congruence processing.

(How) Do Register and Morphosyntactic Congruence Effects Interact during Sentence Reading? Two Eye-Tracking Pilot Studies

In an eye-tracking during reading experiment, we examined how rapidly two types of photo-sentence relations impact sentence comprehension. The relation between a photo of a cultural figure and a year in an ensuing sentence (either the cultural figure in the photo was either alive in that year or not) was contrasted with relations between the same photo and achievements or facts about the cultural figure (e.g., a film they had vs. had not starred in). Longer reading times were observed at the regions containing mismatching year or fact, with more robust effects when data were filtered to include only trials in which participants had accurate prior knowledge about the cultural figure, their accomplishments, and their lifetime. These findings indicate that specific long-term knowledge is activated by a picture of a known figure and is rapidly available during language processing.

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