Ppt: Particpant ID nativeLanguage: Native language of the participant indexicalChange: Whether participants received a speaker-change (speaker) or accent-change (accent) trial as their Indexical change trial Sex: Whether the participant was male (M) or female (F) Fam1-Fam8: Each column displays participants' total looking time in milliseconds (ms) to the monitor during each of the eight sequential familiarization trials. 1NoChange: Participants' total looking time in ms to the monitor during the No-change control test trial in block one. Note: Presentation of test trials within blocks was randomized for each participant. 1VowelChange: Participants' total looking time in ms to the monitor during the Vowel-change test trial in block one. 1IndexicalChange: Participants' total looking time in ms to the monitor during the Indexical-change test trial in block one. 2NoChange: Participants' total looking time in ms to the monitor during the No-change control test trial in block two. 2VowelChange: Participants' total looking time in ms to the monitor during the Vowel-change test trial in block two. 2IndexicalChange: Participants' total looking time in ms to the monitor during the Indexical-change test trial in block two.