Animal Learning & Behavior
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Priming during multiple-target search: The cumulative effects of relative target frequency
Animal Learning & Behavior - Tập 24 - Trang 394-400 - 1996
During search for multiple targets, reaction time decreases when a given target assumes a relatively high probability of appearance. Three experiments addressed the basis of this frequent-target effect. In a trialwise visual search method, pigeons pecked at the single target symbol embedded in a multisymbol display. In Experiment 1, the course of reaction times to frequent and infrequent targets w......
Comparative analysis of delayed alternation learning in cats, mice, and guinea pigs
Animal Learning & Behavior - Tập 8 - Trang 457-464 - 1980
The performance of cats, guinea pigs, and mice in a delayed alternation paradigm was compared both during initial learning and following a 10-day retention interval. The testing situation (a modified T-maze), the length of the delay period (10 sec), and the amount of training per session and per week were kept identical for all three species. The results indicated that (1) animals of all three spe......
Effects of pretraining on conditioning-enhanced neophobia: Evidence for separable mechanisms of neophobia and aversion conditioning
Animal Learning & Behavior - Tập 14 - Trang 155-162 - 1986
In two experiments, rats (n = 228) received pretraining access to a distinctive novel flavor (saline) followed by aversion conditioning to a different novel conditioned stimulus (CS) (saccharin). Then the rats were tested for aversion to the CS (saccharin) or for conditioning-enhanced neophobia to a third novel flavor (casein hydrolysate). Pretraining access to a distinctive novel flavor that diff......
The influence of context-reinforcer associations on instrumental performance
Animal Learning & Behavior - Tập 7 - Trang 504-508 - 1979
In each of two experiments, rats were trained to press the lever in a Skinner box, food reinforcement being available on a variable-interval 60-sec schedule (VI 60). There followed an “exposure phase” for which the levers were removed from the boxes, and then a final test with the levers replaced to assess the effects of the intervening treatment on instrumental responding. Experiment 1 showed tha......
Overnight incubation of a partially conditioned eyeblink response in rabbits
Animal Learning & Behavior - Tập 3 - Trang 114-118 - 1975
Three experiments employing the rabbit eyelid conditioning paradigm examined the effect of a variable-duration rest period on the performance of a partially acquired CR. Conditioning performance improved as a direct monotonic function of the retention interval. Performance after a 24-h rest interval was substantially superior to that observed after a rest interval of several minutes. The third exp......
On the acquisition and measurement of stimulus control in pigeons
Animal Learning & Behavior - Tập 10 - Trang 194-200 - 1982
Two experiments were performed to investigate the relationship between excitatory stimulus control (number of responses to a training stimulus) and dimensional stimulus control (generalization gradient slope). In experiment 1, after being trained to peck a green key, pigeons received either 20, 40, or 80 brief (.5, 2, 4, or 8 sec) presentations of a 45-deg line followed by reinforcement (12 groups......
True directed forgetting in pigeons may occur only when alternative working memory is required on forget-cue trials
Animal Learning & Behavior - Tập 23 - Trang 280-285 - 1995
Results of directed-forgetting research with pigeons are difficult to interpret because of alternative nonmemorial accounts of performance decrements and important procedural differences from comparable research with humans. Prior research has noted the absence of directed forgetting when artifacts have been removed (e.g., nonreward following forget cues and differences in response patterns on rem......
Conditioning copulatory behavior to an artificial object: Efficacy of stimulus fading
Animal Learning & Behavior - Tập 20 Số 4 - Trang 350-362 - 1992
Should taste-aversion learning experiments control duration or volume of drinking on the training day?
Animal Learning & Behavior - Tập 4 - Trang 96-98 - 1976
It has been reported that increases in volume drunk of a solution, prior to poisoning, lead to greater learned aversions. However, this effect may be due totally or partially to differences in time spent drinking rather than to amount drunk. When duration of drinking is held constant, rats differ spontaneously in how much of a solution they drink. In 29 experimental groups, varying in procedural d......
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