Word Learning Through Eye-Gaze Cues at Ages 12 and 18 Months.
Osnat Segal, Zipora Yegudayev
PMID 41482639WHAT IT FOUND
Eighteen-month-olds followed an adult’s gaze to a target object more often than 12-month-olds.
Both ages linked a new word to a specific object, but this learning was fragile and inconsistent when tested against similar competing objects.
Key findings
01Eighteen-month-olds followed the interlocutor’s eye gaze toward the target object significantly more often than 12-month-olds.
02Infants at both ages formed a specific link between the learned word and the target object, evidenced by looking at a different object when hearing a novel word.
03Word learning was fragile: in the final test trial, infants did not show a significant preference for the target object over distractors.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The sample size was small, particularly in the test phase (25 infants), which limited the ability to detect age differences in word recognition. Infants who did not look at the screen or follow gaze were excluded, potentially biasing the sample toward more socially engaged infants. The study used only two specific stuffed animals, and the visual similarity between the target and the distractor may have made the task too difficult, obscuring learning effects. The design was cross-sectional, so it cannot track individual developmental trajectories between 12 and 18 months.
Declared interests
The work was supported by the Israeli Scientific Foundation. The authors disclosed no other conflicts of interest.
The easy way to misread this
Do not conclude that 12-month-olds cannot learn words through gaze cues. The study found they did follow gaze and form word-object links, but they did so less frequently and with less sustained attention than 18-month-olds. The null result in the test phase for age differences may reflect the small sample size and the high difficulty of the four-alternative task, not a lack of learning.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →