Mixed RSVP (letters and pictures)

GilyMozes

Hi all,
How can I use the inline script to create
1.a list that contains 20 pictures from class1 , 20 pictures from class2, and 20 letters (RSVP(60)).
2.run the RSVP randomly with T1 always a picture ( from class 1 or 2 ), and in between T1 and T2(letter), only letters.
3.T2 appears in 3 possible places, and 3 possible lags.

Gily

eduard

Hi Gily,

Try that:

import random

# First step define the stimulus list
# define the stimuli, either by hand or in a different way
pic_1 = ['class1_1.jpg','class1_2.jpg','class1_3.jpg']
pic_2 = ['class2_1.jpg','class2_2.jpg','class2_3.jpg']
letters = ['a','b','c']

# shuffle each list
random.shuffle(pic_1)
random.shuffle(pic_2)
random.shuffle(letters)

# I just set the indices where the target should appear by hand. If you have variable for that, use that one
no_trials = 9 # no stimuli
t1_idx = 3
t2_idx = 6
no_items_inbetween = (t2_idx-1) - t1_idx # how many items between the targets?

stimuli = []
stimuli.append(random.choice([pic_1,pic_2]).pop()) # choose T1
for i in range(no_items_inbetween):
    stimuli.append(letters.pop()) # add the intermediate letters
stimuli.append(letters.pop()) # add the target 2

rest_stimuli = pic_1 + pic_2 + letters
random.shuffle(rest_stimuli)
# add the stimuli before target 1
for i in range(t1_idx):
    stimuli.insert(0,rest_stimuli.pop())
# add the stimuli after target 2
for i in range(len(rest_stimuli)):
    stimuli.append(rest_stimuli.pop())

# now stimuli list is finished
stimuli_container = [pic_1,pic_2,letters]

# second step draw these stimuli on canvas
canvasses = [] # prepare a list for all the canvasses

for i in range(no_trials):
     cv = canvas()
     if '.jpg' in stimuli[i]: # check if it is an image or a letter
          cv.image(exp.pool[stimuli[i]],x = 0, y=0)
     else:
          cv.text(stimuli[i], x= 0, y= 0)
     canvasses.append(cv)

## 3. step: present them

for cv in canvasses:
     cv.show()
     clock.sleep(20)

I haven't tested the code, there might some typos be in there, but the general logic should bring you places, I hope. Let me know if anything is unclear.

3.T2 appears in 3 possible places, and 3 possible lags

What do you mean with places? locations on the screen? Then manipulate the x and y of the letter.

Best,
Eduard

GilyMozes

HI Eduard,
WOW:) YOU ARE A KING
."places"=position in the RSVP.
I'll work on it and update you
many thanks!!
GILY