Temporal control in fixed-interval schedules.

abstract：:The effects of patch encounter rate on patch choice and meal patterns were studied in rats foraging in a laboratory environment offering two patch types that were encountered sequentially and randomly. The cost of procuring access to one patch was greater than the other. Patches were either encountered equally often o...

journal_title：Journal of the experimental analysis of behavior

authors： Collier G,Johnson DF,Berman J

更新日期：1998-01-01 00:00:00

abstract：:Three pigeons were trained to discriminate a 5.0 mg/kg dose of pentobarbital from saline under a two-key concurrent schedule with responding on the key associated with the presession injection, under both stimulus conditions, producing four times as many reinforcers as responding on the other key. This concurrent sche...

journal_title：Journal of the experimental analysis of behavior

authors： Snodgrass SH,McMillan DE

更新日期：1996-05-01 00:00:00

abstract：:Yoked pairs of experimentally naive pigeons were exposed to a modified autoshaping procedure in which key pecking by the leader birds postponed both keylight termination and access to grain for the leader and the follower bird. Key pecking developed and was maintained in all birds and continued through two reversals o...

journal_title：Journal of the experimental analysis of behavior

authors： Myerson J,Myerson WA,Parker BK

更新日期：1979-05-01 00:00:00

abstract：:Pigeons were exposed to two types of concurrent operant-reinforcement schedules in order to determine what choice rules determine behavior on these schedules. In the first set of experiments, concurrent variable-interval, variable-interval schedules, key-peck responses to either of two alternative schedules produced f...

journal_title：Journal of the experimental analysis of behavior

authors： Hinson JM,Staddon JE

更新日期：1983-01-01 00:00:00

abstract：:Pigeons' pecks on either of two concurrently available response keys produced secondary reinforcers according to independent one-minute variable-interval schedules. Different secondary reinforcers, in the presence of which the rates of primary reinforcement were equal, were associated with each key. The rate of peckin...

journal_title：Journal of the experimental analysis of behavior

authors： Fantino E,Herrnstein RJ

更新日期：1968-01-01 00:00:00

abstract：:Six male Wistar rats were exposed to concurrent variable-interval schedules of wheel-running reinforcement. The reinforcer associated with each alternative was the opportunity to run for 15 s, and the duration of the changeover delay was 1 s. Results suggested that time allocation was more sensitive to relative reinfo...

journal_title：Journal of the experimental analysis of behavior

authors： Belke TW,Belliveau J

更新日期：2001-05-01 00:00:00

abstract：:Three experiments assessed the impact of sample duration on pigeons' delayed matching as a function of whether or not the samples themselves signaled how long they would remain on. When duration was uncorrelated with the sample appearing on each matching trial, the typical effect of duration was observed: Choice accur...

journal_title：Journal of the experimental analysis of behavior

authors： Urcuioli PJ,DeMarse TB,Lionello KM

更新日期：1999-11-01 00:00:00

abstract：:Six pigeons were trained on concurrent variable-interval schedules in which two different travel times between alternatives, 4.5 and 0.5 s, were randomly arranged. In Part 1, the next travel time was signaled while the subjects were responding on each alternative. Generalized matching analyses of performance in the pr...

journal_title：Journal of the experimental analysis of behavior

authors： Davison M,Elliffe D

更新日期：2000-01-01 00:00:00

abstract：:The hypothesis that mesolimbic dopamine is selectively involved in cocaine reinforcement was investigated in the rat. Animals were trained under a multiple schedule in which responding was reinforced by intravenous cocaine (0.75 mg/kg/injection) or food (45-mg pellets) under fixed-ratio 15 schedule requirements in alt...

journal_title：Journal of the experimental analysis of behavior

authors： Caine SB,Koob GF

更新日期：1994-03-01 00:00:00

abstract：:Previous experiments have demonstrated that presenting independently established discriminative stimuli in compound can substantially increase operant responding maintained by food reinforcement or shock avoidance. Recently, this phenomenon was also shown to occur with cocaine self-administration. The present study fu...

journal_title：Journal of the experimental analysis of behavior

authors： Panlilio LV,Weiss SJ,Schindler CW

更新日期：2000-03-01 00:00:00

abstract：:Grain was briefly presented to food-deprived pigeons intermittently and response-independently except during signaled timeouts. During Experiment 1, key pecks postponed the next timeout for a specified interval. Rates of pecking during time in were inversely related to the length of time pecking postponed the next tim...

journal_title：Journal of the experimental analysis of behavior

authors： Galbicka G,Branch MN

更新日期：1983-09-01 00:00:00

abstract：:Choice between signaled and unsignaled response-independent food schedules was assessed in three experiments using a commitment procedure. In Experiment 1, subjects tested with a 5-s visual signal consistently changed from the signaled to the unsignaled schedule. Changing from the unsignaled to the signaled schedule w...

journal_title：Journal of the experimental analysis of behavior

authors： Harsh J,Badia P,Ryan K

更新日期：1984-09-01 00:00:00

abstract：:Eight albino rats, conditioned to press a lever to escape shock, continued to lever press during short inescapable shocks presented subsequently. The rate of this behavior was found to be higher for higher shock intensities regardless of the order in which shock values were presented. Relative to the immediately prece...

journal_title：Journal of the experimental analysis of behavior

authors： Domjan MP,Rowell JW

更新日期：1969-11-01 00:00:00

abstract：:Children 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 status epilepticus causes deficits in auditory discrimination is unknown. A naturalistic auditory location discrimination method was...

journal_title：Journal of the experimental analysis of behavior

authors： Neill JC,Liu Z,Mikati M,Holmes GL

更新日期：2005-11-01 00:00:00

abstract：:Observing behavior of two squirrel monkeys was examined under a multiple schedule of four components. Lever (observing) responses produced either a stimulus indicating the availability of food or another stimulus indicating food was not available. Key responses in the presence of the food-available stimulus produced f...

journal_title：Journal of the experimental analysis of behavior

authors： De Lorge JO,Clark FC

更新日期：1971-09-01 00:00:00

abstract：:In Experiment 1, 2 monkeys earned their daily food ration by pressing a key that delivered food according to a variable-interval 3-min schedule. In Phases 1 and 4, sessions ended after 3 hr. In Phases 2 and 3, sessions ended after a fixed number of responses that reduced food intake and body weights from levels during...

journal_title：Journal of the experimental analysis of behavior

authors： Silberberg A,Bauman R,Hursh S

更新日期：1993-03-01 00:00:00

abstract：:Key pecking of pigeons under a fixed-ratio 100, grain reinforcer schedule was followed by electric shock occurring once in each sequence of 100 responses with the shocked response varying irregularly in successive sequences. Under this shock schedule, a localized suppression of responding in a response sequence was no...

journal_title：Journal of the experimental analysis of behavior

authors： Dardano JF

更新日期：1972-05-01 00:00:00

abstract：:Five rats pressed levers on variable-interval schedules of water reinforcement at various levels of water deprivation. In one phase of the experiment, three deprivation conditions that replicated conditions in Heyman and Monaghan (1987) were arranged, along with three less extreme deprivation conditions. In a second p...

journal_title：Journal of the experimental analysis of behavior

authors： McDowell JJ,Dallery J

更新日期：1999-09-01 00:00:00

abstract：:Fighting responses were elicited in pairs of rats by shocks over a period of 46 days. During certain blocks of these days, "punishing" shocks were made contingent on the shock-elicited fights. Fighting frequency was reduced as a direct function of the intensity of the contingent shocks. Fighting frequency recovered co...

journal_title：Journal of the experimental analysis of behavior

authors： Roberts CL,Blase K

更新日期：1971-03-01 00:00:00

abstract：:Responding of three pigeons was maintained under conjunctive fixed-ratio, fixed-interval schedules where a key peck produced food after both schedule requirements were completed. The individual schedule requirements were then successively removed and reinstated with responding maintained under the following conditions...

journal_title：Journal of the experimental analysis of behavior

authors： Barrett JE

更新日期：1975-07-01 00:00:00

abstract：:The control exerted by a stimulus associated with an extinction component (S-) on observing responses was determined as a function of its temporal relation with the onset of the reinforcement component. Lever pressing by rats was reinforced on a mixed random-interval extinction schedule. Each press on a second lever p...

journal_title：Journal of the experimental analysis of behavior

authors： Escobar R,Bruner CA

更新日期：2009-09-01 00:00:00

abstract：:Sexual reinforcers are not part of a regulatory system involved in the maintenance of critical metabolic processes, they differ for males and females, they differ as a function of species and mating system, and they show ontogenetic and seasonal changes related to endocrine conditions. Exposure to a member of the oppo...

journal_title：Journal of the experimental analysis of behavior

authors： Crawford LL,Holloway KS,Domjan M

更新日期：1993-07-01 00:00:00

abstract：:Undergraduate students' presses on left and right buttons occasionally made available points exchangeable for money. Blue lights over the buttons were correlated with multiple random-ratio random-interval components; usually, the random-ratio schedule was assigned to the left button and the random-interval to the righ...

journal_title：Journal of the experimental analysis of behavior

authors： Catania AC,Matthews BA,Shimoff E

更新日期：1982-11-01 00:00:00

abstract：:If a response key is regularly illuminated for several seconds before food is presented, pigeons will peck it after a moderate number of pairings; this "auto-shaping" procedure of Brown and Jenkins (1968) was explored further in the present series of four experiments. The first showed that pecking was maintained even ...

journal_title：Journal of the experimental analysis of behavior

authors： Williams DR,Williams H

更新日期：1969-07-01 00:00:00

abstract：:Three pigeons pecked keys and 5 rats pressed levers for food delivered on variable-interval schedules. During baseline conditions, subjects responded on a variable-interval 40-s schedule throughout the session. During experimental conditions, the programmed rate of reinforcement changed every 10 min in the 50-min sess...

journal_title：Journal of the experimental analysis of behavior

authors： McSweeney FK,Weatherly JN,Swindell S

更新日期：1995-09-01 00:00:00

abstract：:Two pigeons were trained to peck a key under a free-operant avoidance schedule. Then, changes in key color signalled the beginning (safe period) and the end (warning period) of the response-shock interval, with a response required to change the key color. Finally, a change in key color signalled the warning period and...

journal_title：Journal of the experimental analysis of behavior

authors： De Moraes AB,Todorov JC

更新日期：1977-03-01 00:00:00

abstract：:Lewis rats have been shown to make more impulsive choices than Fischer 344 rats in discrete-trial choice procedures that arrange fixed (i.e., nontitrating) reinforcement parameters. However, nontitrating procedures yield only gross estimates of preference, as choice measures in animal subjects are rarely graded at the...

journal_title：Journal of the experimental analysis of behavior

authors： Stein JS,Pinkston JW,Brewer AT,Francisco MT,Madden GJ

更新日期：2012-05-01 00:00:00

abstract：:Empirical investigations of humans, pigeons, rats, and monkeys have indicated that these species will select free over forced choice, even when faced with identical outcomes. However, the same has yet to be quantitatively confirmed in nonhuman great apes. This experiment is the first systematic investigation of prefer...

journal_title：Journal of the experimental analysis of behavior

authors： Ritvo SE,MacDonald SE

更新日期：2020-03-01 00:00:00

abstract：:Three normal adults were first trained to point sequentially to each member of several pairs of visual stimuli. This baseline training established one class of stimuli to which subjects responded first, and another class of stimuli to which they responded second. Then, in a matching-to-sample procedure, baseline-seque...

journal_title：Journal of the experimental analysis of behavior

authors： Lazar R

更新日期：1977-03-01 00:00:00

abstract：:Key-pecking responses of a pigeon were maintained by a variable-interval schedule of food reinforcement. The responses were suppressed during the occasional presentation of a warning stimulus paired with electric shock. The presence of a second pigeon emitting the same response for food reinforcement reduced the suppr...

journal_title：Journal of the experimental analysis of behavior

authors： Hake DF,Laws DR

更新日期：1967-07-01 00:00:00