This project contains supplementary materials, R code, and data for behavioral and ERP experiments for the study "Behavioral and neural responses to tone errors in foreign-accented Mandarin", published in the journal *Language Learning*. The study was originally nicknamed "Typhoon", so you will see that name in some of the files.
The following is a breakdown of the available files.
*Supplementary materials*
- Supplementary_materials_Appendix_S1_to_S4.pdf *contains*
- Appendix S1: Additional details for stimuli design and creation
- Appendix S2: Waveforms for all critical electrodes
- Appendix S3: Full mixed-effects model output
- Appendix S4: Additional analyses
- Typhoon_stimuli_list_and_info (.xlxs and .txt: a list of all sentence stimuli, critical words, critical tones, frequency and cloze % of expected words)
*R code*
- Typhoon_sentence_judgment_analyses (code for behavioral analyses)
- Typhoon_ERP_analyses (code for ERP analyses)
- Typhoon_RMANOVA_analyses (code for RM-ANOVA ERP analyses)
*Behavioral data:*
- logs_Typhoon_n34.csv
*ERP data*
- n4.mean.post.csv (posterior N400)
- n4.mean.ant.csv (anterior N400)
- p6.mean.post.csv (posterior LPC)
*R data objects (to avoid need to re-run large models)*
- SJT_max2.RData (behavioral model)
- SJT_max2_merMod.RData (behavioral model for plotting)
- n4_ant_fix_merMod.RData (anterior N400 model for plotting)
- n4_ant_fix.RData (anterior N400 model)
- n4_post_fix_merMod.RData (posterior N400 model for plotting)
- n4_post_fix.RData (posterior N400 model)
- p6_post_fix_merMod.RData (LPC model for plotting)
- p6_post_fix.RData (LPC model)
*audio stimuli*
- All of the audio files (.wav) for our stimuli. The labels indicate sentence number (001-240: this corresponds to numbers provided in the 'Typhoon_stimuli_list_and_info" .xlxs and .txt files), the speaker (1 = L1, 2 = L2), and the critical word condition (c = correct/expected word; r = rhyme mismatch; t = tone mismatch; s = semantic/word mismatch). '73dB' indicates the average intensity of the sentence after normalization in Praat (same for all items). So, for example, "002_2c_73dB.wav" is sentence 2, produced by the L2 speaker with the correct/expected critical word. The files with an 'E' prefix were used for practice.
