🧵 New meta-analysis on sources of infant looking in Nature Hum Behaviour. Led by Linette Kunin, w Sabrina Piccolo & @rebeccasaxe.bsky.social. www.nature.com/articles/s41... (paywall) tinyurl.com/33yfwcaa (access to pdf). - ThreadSky

shariliu.bsky.social • 132 days ago

🧵 New meta-analysis on sources of infant looking in Nature Hum Behaviour. Led by Linette Kunin, w Sabrina Piccolo & @rebeccasaxe.bsky.social. https://www.nature.com/articles/s41562-024-01965-x (paywall) https://tinyurl.com/33yfwcaa (access to pdf).

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doctorscience.bsky.social•129 days ago

Under which heading does "Peek-a-Boo" fall? VOE?

shariliu.bsky.social•128 days ago

Great question. There’s something here for sure but not sure if it’s VOE. Babies are likely not surprised that the person is still there if their face is covered- could be prediction error over when the reappearance happens?

shariliu.bsky.social•128 days ago

For a paradigm and computational model on how infants respond to a task more similar to peek a boo, see: https://www.biorxiv.org/content/10.1101/2024.08.21.609039v2.abstract

benedek.bsky.social•132 days ago

Congrats, this looks like an enormous project!

shariliu.bsky.social•132 days ago

Why do babies stare at surprising events (e.g. a ball floating in midair, an agent behaving inefficiently)? Because such events are conceptually unexpected, or merely because they’re perceptually novel? (2/n)

shariliu.bsky.social•132 days ago

To study this question we measured two effects in data from prior research (N = 1899 infants 3-12mo of age. First, the classic violation of expectation (VOE) effect, defined as how long babies look to unexp relative to exp events... (3/n)

shariliu.bsky.social•132 days ago

... and second, a measure of perceptual novelty (PN), defined as how long babies look to exp events, relative to preceding habituation events. (4/n)

shariliu.bsky.social•132 days ago

The logic is: If VOE is reducible to a more basic effect of low-level novelty, then the same moderators should predict the size of these two effects. But that’s not what we found. (5/n)

shariliu.bsky.social•132 days ago

Instead, we found a double dissociation. The only reliable predictor of the VOE effect was infant age - younger babies show bigger VOE effects. Age didn't predict the size of the PN effect - if anything, we see the opposite. (6/n)

shariliu.bsky.social•132 days ago

The only reliable predictor of the PN effect was habituation - habituation studies reported bigger PN effects, and infants that habituated faster across all studies showed bigger PN effects. No relationship between habituation and VOE. (7/n)

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