in my experiment I want to manipulate, among other things, the number of dots of a RDK across trials.
How can I do this in the builder? It seems that if I set up a condition file, this can’t be read to change the number of dots…If I follow what is written here
so that for example I have a code component that in the ‘begin routine’ has
dots = visual.DotStim(win=win, name='dots', nDots=target_num, dotSize=2, speed=0.1, dir=0.0, coherence=1.0, fieldPos=[-0.5, 0.0], fieldSize=1.0,fieldShape=u'circle', signalDots=u'same', noiseDots=u'direction',dotLife=3, color=[1.0,1.0,1.0], colorSpace=u'rgb', opacity=1, depth=0.0)
how can I then draw this for only 300 ms?