lever press
ISOLATING BEHAVIORAL MECHANISMS OF INTERTEMPORAL CHOICE: NICOTINE EFFECTS ON DELAY DISCOUNTING AND AMOUNT SENSITIVITY
by: shinta, 11 pagesMany drugs of abuse produce changes in impulsive choice, that is, choice for a smaller–sooner reinforcer over a larger–later reinforcer. Because the alternatives differ in both ...
QUANTIFICATION OF DRUG CHOICE WITH THE GENERALIZED MATCHING LAW IN RHESUS MONKEYS
by: shinta, 16 pagesThe generalized matching law provides precise descriptions of choice, but has not been used to characterize choice between different doses of drugs or different classes of drugs. The current ...
ACQUISITION OF COCAINE SELF-ADMINISTRATION WITH UNSIGNALED DELAYED REINFORCEMENT IN RHESUS MONKEYS
by: shinta, 12 pagesSix experimentally naive rhesus monkeys produced 0.01 mg/kg/infusion cocaine by lever pressing under a tandem fixed-ratio 1 differential-reinforcement-of-other-behavior schedule. One lever ...
EFFECTS OF REINFORCEMENT SCHEDULE ON FACILITATION OF OPERANT EXTINCTION BY CHLORDIAZEPOXIDE
by: shinta, 12 pagesLearning and memory are central topics in behavioral neuroscience, and inbred mice strains are widely investigated. However, operant conditioning techniques are not as extensively used in this ...
PILOCARPINE SEIZURES CAUSE AGE-DEPENDENT IMPAIRMENT IN AUDITORY LOCATION DISCRIMINATION
by: shinta, 14 pagesChildren who have status epilepticus have continuous or rapidly repeating seizures that may be life- threatening and may cause life-long changes in brain and behavior. The extent to which ...
THE ROLE OF DOPAMINE IN REINFORCEMENT: CHANGES IN REINFORCEMENT SENSITIVITY INDUCED BY D1-TYPE, D2-TYPE, AND NONSELECTIVE DOPAMINE RECEPTOR AGONISTS
by: shinta, 29 pagesDose-dependent changes in sensitivity to reinforcement were found when rats were treated with low, moderate, and high doses of the partial dopamine D1-type receptor agonist SKF38393 and with ...
EFFECTS OF COCAINE ON FIXED-INTERVAL RESPONDING REINFORCED BY THE OPPORTUNITY TO RUN
by: shinta, 15 pagesRate-dependent drug effects have been observed for operant responding maintained by food, water, heat, light onset, electrical brain stimulation, shock-stimulus termination, and shock ...
BEHAVIORAL AND PHARMACOLOGICAL VARIABLES AFFECTING RISKY CHOICE IN RATS
by: shinta, 23 pagesThe effects of manipulations of response requirement, intertrial interval (ITI), and psychoactive drugs (ethanol, phencyclidine, and d-amphetamine) on lever choice under concurrent ...
DRUG DISCRIMINATION: STIMULUS CONTROL DURING REPEATED TESTING IN EXTINCTION
by: shinta, 12 pagesRats were trained, under a two-lever drug-discrimination procedure, to respond differentially de- pending upon whether lorazepam (1.0 mg/kg) or no injection had been administered before the
BEHAVIOR OF RATS UNDER FIXED CONSECUTIVE NUMBER SCHEDULES: EFFECTS OF DRUGS OF ABUSE
by: shinta, 16 pagesFour rats responded under a simple fixed consecutive number schedule in which eight or more consecutive responses on the run lever, followed by a single response on the reinforcement lever,
