STEP Single Substance Ach + Adrenaline Ach + Atropine Ach + Physostigmine Adrenaline + Ach Phentolamine + Adrenaline Propanolol + Adrenaline    R E C O R D E R   Speed
Acetylcholine	Adrenaline	Atropine	Propranolol	Phentolamine	Physostigmine	Pilocarpine	VDO1 (Animal)	VDO2 (Method)