[inthatb]

Hm… this solution doesn’t work for me? I think the issue is with shuffle – when I don’t shuffle the canvas, the dot switching works fine. However, when I have shuffle, there are sometimes 0,1,2 gaps. I think that this is because shuffle actually chooses 25/27 possibilities and sometimes those choices contain the hidden squares (so we have gaps).
Also, can you take a look at my jump conditional? The no-interference trial works fine but I think I’m having trouble triggering the jump with an incorrect response.

[inthatb]

I have made progress – I’ve initialized two squares as dots. To generate a match/mismatch case (indicated by the csv), I’ve reserved squares 1 and 2 as dots. I initially show square 1 and hide square 2. When we get to the mismatch case, I hide square 1 and show square 2 to flip the positions of 2 dots while making the total number of dots the same. There is an issue here – the hidden stimuli don’t have the 1 pixel gray border and make the grid look strange.
I’m trying to do a similar thing with words. I’m going to show a word list then present them with a match/mismatch condition. I think that the best way to do this is to read in a csv row with #elements + 1, then hide/unhide two words to switch them

Do you have thoughts?

My new link: https://upenn.pcibex.net/r/NfPXvD/

[inthatb]

Hi Jeremy,
That’s really helpful, thank you!
I’m trying to set up the grid so that participants will see a grid. After a brief pause, they will see another grid (either the same or different by 1 dot) and asked whether this grid matches the previous grid. Prof. Schwarz suggested that I don’t encode position in the csv but rather use shuffle() on the selector. In the first two rows of the csv, I would have one dot and one blank respectively. Then, I can flip the value of these bits to get a new grid that differs by one.
I’ve tried implementing it here but have run into three issues. First, I need to shuffle the canvas rather than the selector. However, there doesn’t seem to be a shuffle function for canvas. Second, I don’t know how we can change the image associated with a handle. I need to do this to flip a square to a dot. Third, line 174 doesn’t seem to be showing the grid again after the timer named “wait2” has run out. Do you know how I could fix this?

Inthat

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