Hi,
i have to write a recognition test-program that puts images on the
screen (existing jpgs).
In a first step a list of 15 to 25 images should be presented one by
one in the middle of the screen, and this should be randomized.
In a second step each of these images should be presented on the
screen together with three other images (so a target and three
distractors), each in one corner of the screen. In this step, the
position (always a corner) of each of the images on the screen
should be randomized, and also the order of the different screens
should be randomized.
In this second step the subject has to respond which of the four
images he has seen before (in step one). This response should be
registrated.
Can anyone help me with this program or does anyone have a program
that is similar with the one I need?
Thanks a lot
Bart
Illustration:
Step one:
screen1: B2
screen2: C4
screen3: A3
screen4: E1
screen5: F2
screen6: G3
... (images in the center of the screen)
Step two:
screen1: A1 - A3 - A2 - A4 (in the corners)
screen2: C4 - C2 - C3 - C1
screen3: G2 - G4 - G1 - G3
screen4: B1 - B2 - B4 - B3
...
so on screen1 the subject has to respond "A3"
Doesn't seem that difficult but I don't have too much experience
with Matlab.
i have to write a recognition test-program that puts images on the
screen (existing jpgs).
In a first step a list of 15 to 25 images should be presented one by
one in the middle of the screen, and this should be randomized.
In a second step each of these images should be presented on the
screen together with three other images (so a target and three
distractors), each in one corner of the screen. In this step, the
position (always a corner) of each of the images on the screen
should be randomized, and also the order of the different screens
should be randomized.
In this second step the subject has to respond which of the four
images he has seen before (in step one). This response should be
registrated.
Can anyone help me with this program or does anyone have a program
that is similar with the one I need?
Thanks a lot
Bart
Illustration:
Step one:
screen1: B2
screen2: C4
screen3: A3
screen4: E1
screen5: F2
screen6: G3
... (images in the center of the screen)
Step two:
screen1: A1 - A3 - A2 - A4 (in the corners)
screen2: C4 - C2 - C3 - C1
screen3: G2 - G4 - G1 - G3
screen4: B1 - B2 - B4 - B3
...
so on screen1 the subject has to respond "A3"
Doesn't seem that difficult but I don't have too much experience
with Matlab.