I'm currently setting up a new experiment but I'm having an issue where my stimuli are not erased after each trial.
If I run the trial twice by enumerating two instances of the same trial it is fine.
However when called inside a block the stimuli persist.
Is this a bug or am I misunderstanding something?
Here is the code I am playing with:
<picture face>
/items =("Faces/Face1.jpg","Faces/Face2.jpg","Faces/Face3.jpg","Faces/Face4.jpg","Faces/Face5.jpg","Faces/Face6.jpg","Faces/Face7.jpg","Faces/Face8.jpg")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture plants>
/items =("HousePlants/Plant1.bmp","HousePlants/Plant2.bmp","HousePlants/Plant3.bmp","HousePlants/Plant4.bmp","HousePlants/Plant6.bmp","HousePlants/Plant7.bmp","HousePlants/Plant8.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture fruits>
/items = ("Fruit/Apple1.bmp","Fruit/Banana1.bmp","Fruit/Grapes1.bmp","Fruit/Lemon1.bmp","Fruit/Melon1.bmp","Fruit/Orange1.bmp","Fruit/Pear1.bmp","Fruit/Pineapple1.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture flowers>
/items = ("Flowers/Amarylis.bmp","Flowers/Chrysan.bmp","Flowers/Clematis.bmp","Flowers/Echinace.bmp","Flowers/Mallow.bmp","Flowers/Marigold.bmp","Flowers/Sunflower.bmp","Flowers/Zinnia.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture leafs>
/items = ("Leaves/Leaf1.bmp","Leaves/Leaf2.bmp","Leaves/Leaf3.bmp","Leaves/Leaf4.bmp","Leaves/Leaf5.bmp","Leaves/Leaf6.bmp","Leaves/Leaf7.bmp","Leaves/Leaf8.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture trees>
/items = ("Trees/Tree1.bmp","Trees/Tree2.bmp","Trees/Tree3.bmp","Trees/Tree4.bmp","Trees/Tree5.bmp","Trees/Tree6.bmp","Trees/Tree7.bmp","Trees/Tree8.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<picture butterflies>
/items = ("Butterflies/Butterfly1.bmp","Butterflies/Butterfly2.bmp","Butterflies/Butterfly3.bmp","Butterflies/Butterfly4.bmp","Butterflies/Butterfly5.bmp","Butterflies/Butterfly6.bmp","Butterflies/Butterfly7.bmp","Butterflies/Butterfly8.bmp")
/scale = 0.25
/ position = (poslistx, poslisty)
/erase = true(white)
</picture>
<list poslisty>
/items =(16*sin(0.33*m_pi)+50, 16*sin(0.66*m_pi)+50 , 16*sin(0.99*m_pi)+50, 16*sin(1.33*m_pi)+50, 16*sin(1.66*m_pi)+50, 16*sin(1.99*m_pi)+50)
/select=list.poslistx.currentindex
/ selectionrate = always
</list>
<list poslistx>
/items =(10*cos(0.33*m_pi)+50, 10*cos(0.66*m_pi)+50, 10*cos(0.99*m_pi)+50, 10*cos(1.33*m_pi)+50, 10*cos(1.66*m_pi)+50, 10*cos(1.99*m_pi)+50)
/ selectionrate = always
</list>
<trial search>
/stimulustimes = [0=butterflies plants flowers trees leafs fruits]
/ inputdevice = keyboard
/ validresponse = ("z" "n")
</trial>
<block main>
/trials = [
1-10=search
]
</block>
<expt>
/blocks=[1=main]
</expt>