Data for: Influence of L2 English phonotactics in L1 Brazilian Portuguese illusory vowel perception

Processed data include: -Participant demographic data (15 native Brazilian Portuguese speakers that are advanced second language English speakers; 10 L1 English speakers) -d' scores for identification and ABX tasks (250ms and 1000ms interstimulus intervals) -Reaction time (raw and log transformed) for accurate trials in identification and ABX tasks (250ms and 1000ms interstimulus intervals)