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Go no go paradigm - iscorrectresponse

tecnika — Tue, 18 Sep 2018 08:52:32 GMT

Hello,

In a go no-go paradigm, I am having difficulties in coding correct responses with iscorrectresponse. When cue (that change every trials) and response selection (that stays on the screen for the whole duration of the experiment) are different the participant should click on the "Go_noGo" image, but in the datafile it shows as 0 on the "correct" columns. If they are equals, instead, if the participant does not respond or skip the trial the response is correct (and it's shown as "1" in the correct column indeed). Any clue on what I may have done wrong? Thank you,

Elena

<trial 1_tap_V_Cue_Test>
/ ontrialbegin = [values.resp = 0;]
/ ontrialend = [if (trial.1_tap_V_Cue_Test.response == "Go_noGo") values.resp = radiobuttons.ResponseStimulusGnG.response]
/ ontrialend = [if (trial.1_tap_V_Cue_Test.response == "skip") values.resp = "skip"]

/ iscorrectresponse =
[if (values.currentCue != values.response_selection) {Go_noGo};
if (values.currentCue == values.response_selection) {skip || 0};]

/ ontrialbegin = [if (dropdown.CueOrder.response == "random") {values.currentCue=list.Cue_random.nextvalue; }]
/ ontrialbegin = [if (dropdown.CueOrder.response == "predetermined") {values.currentCue=list.Cue_sequence.nextvalue; }]
/ ontrialbegin = [if (dropdown.CueOrder.response == "random") {list.Cue_random.poolsize = textbox.nrTrialsTest.response;}]
/ ontrialbegin = [if (dropdown.CueOrder.response == "random") {list.Cue_random.itemprobabilities.1 = values.probabilityCue1;}]
/ ontrialbegin = [if (dropdown.CueOrder.response == "random") {list.Cue_random.itemprobabilities.2 = values.probabilityCue2;}]
/ ontrialbegin = [values.timeoutGnG = textbox.timeoutGnG.response]
/ ontrialbegin = [values.nr_experimental_trials += 1]
/ ontrialbegin = [values.nr_practice_trials = 0]
/ ontrialbegin = [picture.Visual_Cue.hposition = 50%; picture.Visual_Cue.vposition = 20%;]
/ inputdevice = mouse
/ stimulustimes = [1 = Go_noGo; 200 = Visual_Cue, Go_noGo, skip]
/ timeout = values.timeoutGnG*1000 + 200
/ showmousecursor = true
/ validresponse = (Go_noGo, skip)
/ branch = [if (values.nr_experimental_trials < textbox.nrTrialsTest.response) trial.1_tap_V_Cue_test else trial.End]
</trial>

RE: Go no go paradigm - iscorrectresponse

tecnika — Tue, 18 Sep 2018 08:52:32 GMT

[quote]

[b]Dave - Tuesday, September 18, 2018[/b]

[quote]

[b]tecnika - Tuesday, September 18, 2018[/b]

[/quote]

/ iscorrectresponse =
[if (values.currentCue != values.response_selection) {Go_noGo};
if (values.currentCue == values.response_selection) {skip || 0};]

is not valid syntax. It needs to read

/ iscorrectresponse = [(values.currentcue != values.response_selection && trial.1_tap_V_Cue_Test.response == "Go_noGo")
|| (values.currentcue == values.response_selection && trial.1_tap_V_Cue_Test.response == "skip")
|| (values.currentcue == values.response_selection && trial.1_tap_V_Cue_Test.response == 0)]

if I understand your setup correctly.

[/quote]

it works! thank you Dave

RE: Go no go paradigm - iscorrectresponse

Dave — Tue, 18 Sep 2018 06:20:25 GMT

[quote]

[b]tecnika - Tuesday, September 18, 2018[/b]

[/quote]