By Tobiii - 11/15/2015
Hi everyone I am back with the same problem again. To recap, I have modified the Flanker task with Fish to allow for three stimuli and have expanded the original trial types from 6 to 9. The problem I am still facing is that the response keys do not correspond to the stimuli. This time, however, the practice trials work but the real trials do not. The parts I modified are in bold and highlighted in yellow and my modification is in the zip file below. I suspect the problem lies in this part specifically (see below) but I am not certain. Someone advise please?
<trial flanker>
/ontrialbegin = [values.response == ""]
/ontrialbegin = [if (script.currentblock == "practice2") values.trialtype = list.trialtype_practice2.nextvalue else values.trialtype = list.trialtype.nextvalue]
/ontrialbegin = [if (values.trialtype == 1) {values.selectflanker = 1; values.selecttarget = 1; values.count_congruent += 1}]
/ontrialbegin = [if (values.trialtype == 2) {values.selectflanker = 2; values.selecttarget = 1; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype == 3) {values.selectflanker = 3; values.selecttarget = 1; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype == 4) {values.selectflanker = 2; values.selecttarget = 2; values.count_congruent += 1}]
/ontrialbegin = [if (values.trialtype == 5) {values.selectflanker = 1; values.selecttarget = 2; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype == 6) {values.selectflanker = 3; values.selecttarget = 2; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype == 7) {values.selectflanker = 3; values.selecttarget = 3; values.count_congruent += 1}]
/ontrialbegin = [if (values.trialtype == 8) {values.selectflanker = 2; values.selecttarget = 3; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype == 9) {values.selectflanker = 1; values.selecttarget = 3; values.count_incongruent += 1}]
/ontrialbegin = [if (values.trialtype < 4) {values.targetdirection = "targetright"}]
/ontrialbegin = [if (values.trialtype > 6) {values.targetdirection = "targetup"}]
/ontrialbegin = [if (values.trialtype == 4 || values.trialtype == 5 || values.trialtype == 6) {values.targetdirection = "targetleft"}]
/ontrialbegin = [if (values.trialtype == 1 || values.trialtype == 4|| values.trialtype == 7 ) {values.congruence = "congruent"}]
/ontrialbegin = [if (values.trialtype == 2 || values.trialtype == 3|| values.trialtype == 5 || values.trialtype == 6 || values.trialtype == 8|| values.trialtype == 9) {values.congruence = "incongruent"}]
/stimulusframes = [1 = flanker1, flanker2, target]
/monkeyresponse = (38, 51, 52)
/isvalidresponse = [trial.flanker_onlytarget.response == values.responsekey_targetright || trial.flanker_onlytarget.response == values.responsekey_targetup ||
trial.flanker_onlytarget.response == values.responsekey_targetleft]
/iscorrectresponse = [(values.targetdirection == "targetright" && trial.flanker_onlytarget.response == values.responsekey_targetright) ||
(values.targetdirection == "targetleft" && trial.flanker_onlytarget.response == values.responsekey_targetleft) ||
(values.targetdirection == "targetup" && trial.flanker_onlytarget.response == values.responsekey_targetup)]
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By Dave - 11/15/2015
Your /isvalidresponse and /iscorrectresponse statements refer to the *wrong* <trial> element.
The <trial> is called flanker, but your logic refers to a completely different <trial> element: trial.flanker_onlytarget.
<trial flanker>
...
/isvalidresponse = [trial.flanker_onlytarget.response == values.responsekey_targetright || trial.flanker_onlytarget.response == values.responsekey_targetup ||
trial.flanker_onlytarget.response == values.responsekey_targetleft]
/iscorrectresponse = [(values.targetdirection == "targetright" && trial.flanker_onlytarget.response == values.responsekey_targetright) ||
(values.targetdirection == "targetleft" && trial.flanker_onlytarget.response == values.responsekey_targetleft) ||
(values.targetdirection == "targetup" && trial.flanker_onlytarget.response == values.responsekey_targetup)]
...
</trial>
Fix that logic to refer to the actual trial.
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