. Author manuscript; available in PMC: 2017 Feb 25.

Published in final edited form as: J Vis Exp. 2016 Feb 25;(108):10.3791/53652. doi: 10.3791/53652

Table 1.

Marker-Keys for Protocol Event Marking During Challenge Tasks.

Marker Key	Event	Duration after Start
F1	Lullaby 1 start	60 sec
F2	Jack in the box start	60 sec
F3	Lemon juice script start	At least 20 sec
F4	Lemon juice end (water drink offered)	At least 10 ses
F5	Infant cry start	30 sec
F6	Lullaby 2 start	60 sec
F7	Video start	120 sec
F10	End of DCP (video end)
F11	Serious irregular events

Marker keys as described in step 5.1 are shown, used to indicate important protocol events and rare occurrences in the ANS data file.