Millisecond Forums

It worked out, the problem I ran into was that adding the "/not" constraint did something to the 'nextvalue', this no longer seemed to be selected sequentially (simply the net value after skipping the value indicated by the "/not" constraint), the way that is was resolved was by adding:

/ontrialend= [list.vpos_filler.reset();]
/ontrialend= [list.hpos_filler.reset();]

at the end of the trail, which seemed to put the lists back in the original order and make the whole thing work again

Thank you Dave, that does indeed sound like what I would need, however, I cannot find any documentation on the 'not constraint', and the following primitive attempt makes a mess of the locations, is there any example I could model this after?


############# lists #####################
### positions:::::::::::::::::
<list hpos>
/items = (hposition_list_set8)
/selectionmode = values.listnumber
/selectionrate = always
</list>
#list for filler items with 'not' contraint
<list hpos_filler>
/items = (hposition_list_set8)
/selectionmode = values.listnumber
/selectionrate = always
/not = (values.hpos1)
</list>
#weighted hpos list for target: --> note this had to be both vertical and horiztonatl positions
<list hposition_list_set8>
/items =(50.0,50.0,50.0,50.0,50.0,50.0,50.0,50.0,50.0,71.21,80.0,71.211, 50.01, 28.79,20.01, 28.791)
/selectionrate = always
</list>
#weighted vpos_list for target
<list vposition_list_set8>
/items = (20.02,20.02,20.02,20.02,20.02,20.02,20.02,20.02,20.02, 28.792, 50.02, 71.212, 80.02, 71.2121, 50.021, 28.7921)
/selectionmode = list.hposition_list_set8.currentindex
/selectionrate = always
</list>
#vpos for fillers:
<list vposition_list_set8_filler>
/items = (20.02, 28.792, 50.02, 71.212, 80.02, 71.2121, 50.021, 28.7921)
/selectionmode = list.hposition_list_set8.currentindex
/selectionrate = always
/= not(values.vpos1)
</list>
#end lists
#end lists


########## trials::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
<surveypage codepage>
/ showpagenumbers = false
/ showquestionnumbers = false
/ questions = [1=codebox]
</surveypage>
<textbox codebox>
/ caption = "Select and copy the following code: THE KEYBOARD DOES NOT WORK: copy the code using the mouse"
/ defaultresponse = values.code
/txcolor = (255, 200, 0)
/position = (50,50)
</textbox>


#-----------------#TRIAL TYPES:: -------------------------------------------------
FORMFORMFORMFORMFORMFORMFORM
777777777777777777777777777777777777777777777777777
<trial set8_target_diamond_dis_form>
/ontrialbegin = [values.listnumber = 1; values.hpos1 = list.hpos.nextvalue; values.vpos1 = list.vposition_list_set8.nextvalue;
values.distractor_position_random = floor(rand(1,8));
values.filler_position1 = list.hpos_filler.nextvalue; values.filler_position1_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position2 = list.hpos_filler.nextvalue; values.filler_position2_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position3 = list.hpos_filler.nextvalue; values.filler_position3_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position4 = list.hpos_filler.nextvalue; values.filler_position4_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position5 = list.hpos_filler.nextvalue;values.filler_position5_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position6 = list.hpos_filler.nextvalue;values.filler_position6_v = list.vposition_list_set8_filler.nextvalue;
values.filler_position7 = list.hpos_filler.nextvalue;values.filler_position7_v = list.vposition_list_set8_filler.nextvalue]

/ontrialbegin = [values.line_ori_target = floor(rand(1,3)); values.line_ori_filler1 = floor(rand(1,5)); values.line_ori_filler2 = floor(rand(1,5)); values.line_ori_filler3 = floor(rand(1,5));values.line_ori_filler4 = floor(rand(1,5));
values.line_ori_filler5 = floor(rand(1,5)); values.line_ori_filler6 = floor(rand(1,5)); values.line_ori_filler7 = floor(rand(1,5));]

/ontrialbegin = [if(values.line_ori_target==1)values.correct_response=(44) else values.correct_response =(50)]
/stimulusframes = [1=target_shape, horizontal_line1, vertical_line1,filler_1, filler_2, filler_3, filler_4, filler_5, filler_6, filler_7, distractor_1, horizontal_line_slanted_up_left1, horizontal_line_slanted_up_right1, vertical_line_slanted_left1, vertical_line_slanted_right1,vertical_line_slanted_right2,vertical_line_slanted_left2,horizontal_line_slanted_up_left2,horizontal_line_slanted_up_right2,vertical_line_slanted_right3,vertical_line_slanted_left3,horizontal_line_slanted_up_left3,horizontal_line_slanted_up_right3,vertical_line_slanted_right4,vertical_line_slanted_left4,horizontal_line_slanted_up_left4,horizontal_line_slanted_up_right4,vertical_line_slanted_right5,vertical_line_slanted_left5,horizontal_line_slanted_up_left5,horizontal_line_slanted_up_right5,vertical_line_slanted_right6,vertical_line_slanted_left6,horizontal_line_slanted_up_left6,horizontal_line_slanted_up_right6, vertical_line_slanted_right7,vertical_line_slanted_left7,horizontal_line_slanted_up_left7,horizontal_line_slanted_up_right7,cover_picture]
/validresponse = ("z","m")
/iscorrectresponse = [trial.set8_target_diamond_dis_form.response == values.correct_response]
/timeout = values.time_out
/posttrialpause = values.post_trial_pause
/pretrialpause = floor(rand(values.jitter_low,values.jitter_high))
</trial>

If I'm understanding your description correctly, you'll want separate <list>s:
- One weighted list for the target location(s), and
- One for the associated filler locations.

You can prevent the latter list from selecting the same location as the target (already chosen in the 1st list) by using a /not constraint.