stim_phase_durs = [ [[1.],None], [[2.,2.8,3.8],[.4,.3,.3]] ]
default_stim_phase_duration = [[3.8, 1.5],[.85,.15]]

delay_phase_durs = [ [[.200], None], [[.200],None] ]
default_delay_phase_duration = [[.200],None]
long_delay = [[1.3],None]