Description of metadata stored in the .txt files
Typically, a line of the file is in the following form: 
CCC KK animal sound of m1 m2 time

where the fields have the following meanings:


CCC - the order of stimuli in the range of 1 to 300 (each text file corresponds to one experiment run, in each run, the measured participant was stimulated by 300 stimuli), typically there were two experimental runs for each participant
KK – the stimulus code that was sent to the measuring amplifier: possible values are:


         1 - code that corresponds to the picture of a goat and its correct sound      
        2 - code that corresponds to the picture of  a dog and the barking sound
          3 - code that corresponds to the picture of a cat and the mewing sound
          4 - code that corresponds to the picture of a cat and the barking sound
          5 - code that corresponds to the picture of a dog and the mewing sound
        11 – code corresponding to the occurrence of the S  1 stimulus after the S  2 stimulus
        12 – code corresponding to the occurrence of the S  1 stimulus after the S  3 stimulus
        13 – code corresponding to the occurrence of the S  1 stimulus after the S  5 stimulus
        14 – code corresponding to the occurrence of the S  1 stimulus after the S  4 stimulus
 
animal - text string that identifies the animal that appears on the screen during stimulation (goat, dog, cat)
sound - the sound of an animal indicating the sounds during stimulation (m - meowing, b –barking,  if the animal field = 'goat' the sound field remains blank (the sound of goat is always correct)
o - symbol that determines whether the measured participant properly responded to the current stimulus (o = The measured participant responded correctly - the currently displayed animal either was given the correct sound and the measured person pressed the right button, or the animal was assigned with the incorrect sound, and the measured person pressed the left button, x - the measured participant pressed the incorrect button).
m1 - the code that should have been pressed - 2 right button 1 - left button
m2 - the button code that was actually pressed by the measured participant
time - reaction time of the measured participant
If the animal = 'goat', m1, m2, and time are empty.

At the end of the file, there is summary information about the average response times and the total number of errors:

Total hits =  the total number of responses to both  cats and dogs (Equals: Total correct sound hits + Total incorrect sound hits)



Total correct sound hits =  the total number of correct responses  to the barking dog and the mewing cat stimuli 

Average sound correct reaction time =  average reaction time for correct responses



Total incorrect sound hits = the total number of incorrect responses  to the barking dog and the mewing cat stimuli



Average incorrect sound reaction time = average response time for Total incorrect sound hits

Total incorrect responses = the number of wrong responses to stimuli  (i.e. the measured participant pressed the incorrect button)



Average incorrect responses time = average response time for incorrect reactions

Total false alarms = total number of false responses - i.e. the measured person pressed the button when it should not have been pressed at all - usually the incorrect response to the stimulus of bleating goat.



Average false alarm response time =  The average reaction time for Total false alarms