'one lever' is a correct and usable phrase in written English.
You can use it when referring to a lever (an object used to operate a mechanism or machine, typically one that is moved by a pivot). For example, "I managed to open the door by using one lever".
Presses on one lever in the operant chamber produced sucrose pellets, whereas presses on the other lever did not, and served only as control for sensorimotor effects.
Responding on one lever was reinforced in the presence of the tone and responding on the other lever was reinforced when the tone was absent.
During a trial, completion of a variable-ratio 10 (VR10) schedule on one lever resulted in the simultaneous injection of a drug and delivery of two food pellets.
Rats were trained to respond under an FCN operant schedule, which required eight presses on one lever (counting lever) before one press at an alternate lever (reinforcement lever) would produce food reinforcement.
Data from two further rats were discarded because they showed persistent exclusive responding on one lever.
In all delay-discounting paradigms, the subject essentially chooses between responding on one lever which leads to a small reward and another which leads to a large but delayed reward.
Responding on one lever (designated Lever A) always resulted in the delivery of 1 pellet immediately; the other lever (designated Lever B), the delivery of 4 pellets after a varying delay (delay phase).
In a study by Evenden and Meyerson [ 34], SHR and WKY controls were required to make a minimum number of consecutive presses on one lever before switching to another lever for a final lever-press to produce the reinforcer (fixed consecutive number schedule of reinforcement, FCN).
Like most central banks, the Bank of Japan has its hands on only one lever for controlling the economy: monetary policy.
It has one lever -- only available mounted on the right side -- and a gooseneck hose that extends 20 inches.
One lever was designated as 'active'; lever pressing on this lever resulted in the delivery of one 45 mg pellet containing 45% fat and 34% carbohydrate (F05879, 5.85 kcal/g AFE; Bioserv, San Diego, CA).
