Matlab

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Eyelink

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Full Examples

Automatic coding of correct trials

`code` %INSTRUCTIONS: Make sure you have the participants data file in the same %folder as this .m file. Data file should follow this naming format: %'sXX.txt', where XX is the participant's subject number. Run file, enter %subject number and condition number. Console will show you brief summary %of accuracy data. Coded data file is saved to the same folder under the %name 'tsmXX.txt'

%clear existing variables clear all clc

%set subject and condition number sub_num = input('Enter the subject number: '); cond_num = input('Enter the condition number: ');

%coding participant responses filename = strcat('s',int2str(sub_num),'.txt'); data = importdata(filename);

%read into correct list of responses and old/new from predefined list answerSheet = strcat('cond',int2str(cond_num),'.txt'); answers = importdata(answerSheet);

switch cond_num

   case 1
       cantL = 1;
       cantU = 35;
       notL = 36;
       notU = 70;
       mineL = 71;
       mineU = 105;
       newL = 106;
       newU = 210;
   case 2
       cantL = 36;
       cantU = 70;
       notL = 71;
       notU = 105;
       mineL = 1;
       mineU = 35;
       newL = 106;
       newU = 210;
   case 3
       cantL = 71;
       cantU = 105;
       notL = 1;
       notU = 35;
       mineL = 36;
       mineU = 70;
       newL = 106;
       newU = 210;
   case 4
       cantL = 106;
       cantU = 140;
       notL = 141;
       notU = 175;
       mineL = 176;
       mineU = 210;
       newL = 1;
       newU = 105;
   case 5
       cantL = 141;
       cantU = 175;
       notL = 176;
       notU = 210;
       mineL = 106;
       mineU = 140;
       newL = 1;
       newU = 105;
   case 6
       cantL = 176;
       cantU = 210;
       notL = 106;
       notU = 140;
       mineL = 141;
       mineU = 175;
       newL = 1;
       newU = 105;

end

%correct recognition? if old object 123 are correct, if new object 4 right

for i = 1:210

   stimulus = data(i,2);
   if stimulus >= cantL && stimulus <= cantU
       correctResponse = 3; %cant have
       old = 1;
   elseif stimulus >= notL && stimulus <= notU
       correctResponse = 2; %not mine
       old = 1;
   elseif stimulus >= mineL && stimulus <= mineU
       correctResponse = 1; %mine
       old = 1;
   elseif stimulus >= newL && stimulus <= newU
       correctResponse = 4; %new
       old = 0;
   end
   
   %correct sort? does their response match the exact number in list?
   response = data(i,3);
   if response == correctResponse %sort
       data(i,5) = 1;
   else
       data(i,5) = 0;
   end
   
   if old == 1 %recognition
       switch data(i,3)
           case 1
               data(i,6) = 1;
           case 2
               data(i,6) = 1;
           case 3
               data(i,6) = 1;
           case 4
               data(i,6) = 0;
       end
   elseif old == 0
       switch data(i,3)
           case 1
               data(i,6) = 0;
           case 2
               data(i,6) = 0;
           case 3
               data(i,6) = 0;
           case 4
               data(i,6) = 1;
       end
   end

end

%display summary to console data sortScore = sum(data(:,5)); sortPerc = (sum(data(:,5))/210)*100; disp(strcat('Sort: ',int2str(sortScore),'/210 ---- ',int2str(sortPerc),'%')) recScore = sum(data(:,6)); recPerc = (sum(data(:,6))/210)*100; disp(strcat('Recognition: ',int2str(recScore),'/210 ---- ',int2str(recPerc),'%'))

%output all to text file - space delimited dataFile = strcat('tsm',int2str(sub_num),'.txt'); dlmwrite(dataFile, data, ' '); `code`