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Question about the "latency" column in the Cyberball (3-player) data record.


Question about the "latency" column in the Cyberball (3-player) data...
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Olivia Ying
Olivia Ying
Olivia Ying
posted 2 Months Ago HOT
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Dear Dave,

I hope you're doing well these days.

I was examining the data returned by Cyberball (3-player) and found something that confused me.

As you can see, player1 and 3 are coded as virtual players whose hesitation time before pitching is determined by the following code:

/ cyberdecisiontime:     selects with replacement (replace) one of the 4 decision times for players1 and 3

<expressions>
/ cyberdecisiontime = replace(500, 1000, 1500, 200)

As well as this is an example of applying 'cyberdecisiontime' in trial:
Note: trial.1to2 => video shows player 1 throwing the ball to player 2 after expressions.cyberdecisiontime.
Player 3 (= values.player) then has to decide where to throw the ball next (= values.recipient)
<trial 1to2>
/ ontrialbegin = [
    values.player = 2;
    if (values.count_ignore2 > values.max_ignore2)
        values.max_ignore2 = values.count_ignore2;
    if (values.ignore2_streak1 == 0)
        values.ignore2_streak1 = values.max_ignore2;
        
    trial.1to2.insertstimulustime(video.1to2, expressions.cyberdecisiontime);
]
/ stimulustimes = [1= 1to2_static]
/ validresponse = (player1, player3, player1label, player3label)
/ ontrialend = [
    trial.1to2.resetstimulusframes();
    
    values.sumrt_player2 += trial.1to2.latency;
    if (trial.1to2.response == "player1" || trial.1to2.response == "player1label") {
        values.recipient = 1;
        values.count_player2throws += 1;
        values.count_21 += 1;
        values.sumrt_21 += trial.1to2.latency;
        values.count_121 += 1;
        values.sumrt_121 += trial.1to2.latency;
    } else if (trial.1to2.response == "player3" || trial.1to2.response == "player3label") {
        values.recipient = 3;
        values.count_player2throws += 1;
        values.count_23 += 1;
        values.sumrt_23 += trial.1to2.latency;
        values.count_123 += 1;
        values.sumrt_123 += trial.1to2.latency;
    };
]
/ branch = [
    if (values.recipient == 1) {
        return trial.2to1;
    } else if (values.recipient == 3) {
        return trial.2to3;
    };
]
</trial>

However, in the returned data (see screenshot), there are a large number of '0's, which I think may be because player1 and player3 are not recorded as hesitation times for virtual players. However, again, it's not all '0's, it looks like '500' and '1000' are possible numbers as they are one of the randomized times, but why again '800'? I've checked the code but still can't explain this and wondered if you had any good insights?


Thank you very much for the time you put into this!

Best,
Yingying
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Question about the "latency" column in the Cyberball (3-player) data...
Olivia Ying - 2 Months Ago
     The value returned by the cyberdecisiontime expression determines at...
Dave - 2 Months Ago
             Hi Dave， Thank you very much for your prompt response! But my...
Olivia Ying - 2 Months Ago
                 > But my intention is to set some random pre-pitch hesitation times...
Dave - 2 Months Ago
                     Thank you so much! I'll try asap.
Olivia Ying - 2 Months Ago
                         Something like this, basically:
Dave - 2 Months Ago
                             Hi Dave, That's so nice of you to show such detailed code! But I'm...
Olivia Ying - 2 Months Ago
                                 Just added a what?
Dave - 2 Months Ago
     Hi Dave Sorry, I hit the "post reply" button by mistake. What I meant...
Olivia Ying - 2 Months Ago
             (1) <values> cyberdesiciontime=replaece(500,1000,1500,2000) ......
Dave - 2 Months Ago

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