UCL Speech Science Forum 24 February 2016, 4pm, G10 Testing for infants’ knowledge of vowel phonotactics Claire Delle Luche Abstract Phonotactics are a useful cue for efficient word segmentation. Research has evidenced infants at 9 months use consonant phonotactics at word onsets and offsets, but vowel phonotactics would be a useful cue as well. We tested British English infants on their knowledge of the lax vowel constraint, and found that not only do they know this constraint, but they do earlier than the earliest evidence of consonant phonotactics.