Figure 2.


a. Phonetic properties of spontaneous (left panel) and experimentally-induced (right panel) productions of voiceless → voiced errors and matched correct voiced productions. Grey points show values for individual sets of matched productions (lines connect correct and error means for the same set). Red points and lines show mean across sets. Center panel: Mean trace size and trace ratio for spontaneous and experimentally-induced errors. Error bars show bootstrapped 95% confidence intervals.
b. Phonetic properties of spontaneous (left panel) and experimentally-induced (right panel) productions of voiced → voiceless errors and matched correct voiceless productions. Grey points show values for individual sets of matched productions (lines connect correct and error means for the same set). Red points and lines show mean across sets. Center panel: Mean trace size and trace ratio for spontaneous and experimentally-induced errors. Error bars show bootstrapped 95% confidence intervals.