Self-paced Dot Probe
This script comes from Tom Campbell, and appears in the DMDX List Archive.
Tom is contactable at <tomc@psychology.leeds.ac.uk>.
A fixation cross is presented centrally for c.500 msec, followed by two
images to the left and right of the fixation cross for c.33 or c.100 msec.
(You'll need to provide your own .bmp files to get this to work). These images
are then replaced by two mask images and then both of the mask images
disappear. One of the mask images is replaced by a probe image (either an
upward or a downward arrow).
The probe image stays on the screen until a response is made (either the
key t (upward
arrow) or g(downward arrow).
With <cr> and <ntl>, as used below, one response allows the
onset of the next trial and the next trial does not begin until a
<azk> <cr> <ntl 0> <fd 16.722> <d 169>
<t 5000> <vm 1152, 864, 864, 16, 0> <id
keyboard> <mpr +t> <mnr +g> <clfb> <dbc 0> <dwc
225225225>
0 "Press SPACEBAR or FOOTPEDAL to start";
+1/<fd 30><XY 600,400> “+”/<fd 6><XY
700,300><bmp>"nm1.bmp",<XY 300,
300><bmp>"nm1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
-2/<fd 30><XY 600,400> “+”/<fd 1><XY
300,300><bmp>"af1_3.bmp",<XY 700,
300><bmp>"af1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
+3/<fd 30><XY 600,400> “+”/<fd 6><XY
300,300><bmp>"hm1_2.bmp",<XY 700,
300><bmp>"hm1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
-4/<fd 30><XY 600,400> “+”/<fd 1><XY
700,300><bmp>"am1_2.bmp",<XY 300,
300><bmp>"am1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
+5/<fd 30><XY 600,400> “+”/<fd 6><XY
300,300><bmp>"nf1.bmp",<XY 700,
300><bmp>"nf1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
-6/<fd 30><XY 600,400> “+”/<fd 1><XY
300,300><bmp>"hf1_2.bmp",<XY 700,
300><bmp>"hf1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
+7/<fd 30><XY 600,400> “+”/<fd 6><XY
700,300><bmp>"hf1_3.bmp",<XY 300,
300><bmp>"hf1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
-8/<fd 30><XY 600,400> “+”/<fd 1><XY
300,300><bmp>"am1_4.bmp",<XY 700,
300><bmp>"am1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
-9/<fd 30><XY 600,400> “+”/<fd 1><XY
700,300><bmp>"nm1.bmp",<XY 300,
300><bmp>"nm1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
-10/<fd 30><XY 600,400> “+”/<fd 1><XY
700,300><bmp>"nf1.bmp",<XY 300,
300><bmp>"nf1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
+11/<fd 30><XY 600,400> “+”/<fd 6><XY
700,300><bmp>"af1_4.bmp",<XY 300,
300><bmp>"af1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
+12/<fd 30><XY 600,400> “+”/<fd 6><XY
300,300><bmp>"af1_2.bmp",<XY 700,
300><bmp>"af1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
+13/<fd 30><XY 600,400> “+”/<fd 6><XY
700,300><bmp>"hm1_4.bmp",<XY 300,
300><bmp>"hm1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
+14/<fd 30><XY 600,400> “+”/<fd 6><XY
700,300><bmp>"nm1.bmp",<XY 300,
300><bmp>"nm1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
-15/<fd 30><XY 600,400> “+”/<fd 1><XY
300,300><bmp>"nf1.bmp",<XY 700,
300><bmp>"nf1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
-16/<fd 30><XY 600,400> “+”/<fd 1><XY
300,300><bmp>"hm1_3.bmp",<XY 700,
300><bmp>"hm1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
-17/<fd 30><XY 600,400> “+”/<fd 1><XY
700,300><bmp>"hf1_4.bmp",<XY 300,
300><bmp>"hf1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
700,300><bmp>"down.bmp";
+18/<fd 30><XY 600,400> “+”/<fd 6><XY
300,300><bmp>"am1_3.bmp",<XY 700,
300><bmp>"am1_1.bmp"/<fd 12><XY 300,
300><bmp>“00001.bmp",<XY 700,
300><bmp>“00001.bmp"/<fd 0>/! *<XY
300,300><bmp>"up.bmp";
0 "The END! Thank you for taking part.";