scripts/train_Inst4.m

function [] = train_Inst4(disp_struct)

    % the outline task instructions
    text_0 = '-Instructions-\n\n\n';
    text_1 = 'OK - here''s an interesting twist: \n\n On some trials, one of the picture will be selected for you and will be framed in blue. These are called ''Match'' trials.\n\n On ''Match'' trials, you must select the framed picture.\n\n\n\n';
    text_2 = 'On other trials you will be free to choose either picture.\n\n These are called ''Choose'' trials.';
    
    Screen('TextSize', disp_struct.wPtr, 30);
    Screen('TextFont', disp_struct.wPtr, 'Times');
    Screen('TextStyle', disp_struct.wPtr, 0);
    Screen('TextColor', disp_struct.wPtr, [255 255 255]);
    Screen('FillRect', disp_struct.wPtr,[0 0 0]);
    % the number of charaters per line
    wrap_length = 70;
    
    % Print out the initial instructions
    
    % Bold the intro
    Screen('TextStyle', disp_struct.wPtr, 1);
    [nx, ny, textbounds] = DrawFormattedText(disp_struct.wPtr, text_0, 'center', 50, [], wrap_length, [], [], 1.25 );
    
    % reset to normal font
    Screen('TextStyle', disp_struct.wPtr, 0);
    [nx, ny, textbounds] = DrawFormattedText(disp_struct.wPtr, text_1, 'center', ny, [], wrap_length, [], [], 1.25 );
    [nx, ny, textbounds] = DrawFormattedText(disp_struct.wPtr, text_2, 'center', ny, [], wrap_length, [], [], 1.25 );
    
    % flip the screen
    Screen(disp_struct.wPtr, 'Flip');
    WaitSecs(0.5);
    
    % wait for P
    RestrictKeysForKbCheck(KbName('SPACE'));
    % wait for keypress
    KbWait([],2); % Waits for keyboard(any) press
end