Each .mat file contains all behavioral data from one single participant, across 10.000 trials : - n_signal corresponds to the presented speech signal (1:Alda, 2:Alga, 3:Arda, 4:Arga) - correct_answer : 1 if the participant correctly identified the target (da or ga), 0 otherwise. - SNR : Signal to noise ratio at which stimuli were presented - date : date of the corresponding trial (year, month, day, h, m, s) - stim_order : random order of presentation of noise sounds.