Cyberball coding

briancjo — Tue, 21 Apr 2015 03:32:35 GMT

Supreme Being, please help me with Cyberball coding as I am a major noob.

1. The coding in the script says that player schedules are randomly selected. is there a way to set the player schedules to follow an exact schedule. Otherwise, it seems impossible to setup an actual social exclusion because the first throw could happen whenever.

2. how do I insert a page in between the instructions and the trial. I would like to add "Waiting for other players" like in the original CB task.

3. If these cannot be resolved, how do I embed a link to a website where cyberball exists?

RE: Cyberball coding

Dave — Tue, 21 Apr 2015 03:32:35 GMT

Re. #1: You will find this covered in the comments inside the script, starting at line 141:

**************************************************************************************************************
**************************************************************************************************************
EDITABLE LISTS: set the throwing schedules for player 1 and player 3
**************************************************************************************************************
**************************************************************************************************************

Note: by default player 1 and player 3 throw to player 2 roughly 25% of the time (1 out 4 times)

The item lists of these schedules can be further controlled by setting a specific/fixed throw sequence:
Example Player 1:

/items = (3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3)
/selectionmode = sequence

(if selectionmode = sequence => it is suggested to create the list as long as (values.max_trialcount/2)
to ensure that the beginning of the list does NOT get repeated)

<list player1schedule>
/ items = (3, 3, 3, 2)
/replace = false
</list>

<list player3schedule>
/ items = (1, 1, 1, 2)
/replace = false
</list>

**************************************************************************************************************
**************************************************************************************************************

Re. #2: Add something along the lines of

<trial wait>
/ stimulusframes = [1=waittext]
/ validresponse = (0)
/ trialduration = round(rand(1000,5000))
</trial>

<text waittext>
/ items = ("Waiting for other players to join...")
</text>

and run that trial at the end of <block instructions>

<block instructions>
/ trials = [1=instructions; 2=name; 3=wait]
</block>

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Cyberball coding

RE: Cyberball coding