Animal Learning & Behavior最新文献

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Concurrent-chain performance in transition: effects of terminal-link duration and individual reinforcers. 过渡中的并发链绩效:终端链持续时间和个体强化因素的影响。
Animal Learning & Behavior Pub Date : 2002-08-01 DOI: 10.3758/bf03192834
James E Mazur
{"title":"Concurrent-chain performance in transition: effects of terminal-link duration and individual reinforcers.","authors":"James E Mazur","doi":"10.3758/bf03192834","DOIUrl":"10.3758/bf03192834","url":null,"abstract":"<p><p>Pigeons responded on concurrent-chain schedules with variable-interval initial links and equal delays as terminal links. The terminal-link delays were 1 sec in some conditions and 20 sec in other conditions. The percentages of reinforcers delivered for responses on the left key were 10%, 30%, 70%, or 90%, and this percentage was switched every five to nine sessions. The rate of change in the pigeons' response percentages after a switch was the same whether the terminal-link delays were 1 sec or 20 sec. Analysis of the effects of individual reinforcers showed that after a response on one key had been reinforced, response percentages on that key were higher for at least the next 100 responses. Small effects of individual reinforcers were evident after eight or nine additional reinforcers had been delivered. The effects of individual reinforcers were about equally large during times of transition and during periods in which overall response percentages were relatively stable.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"30 3","pages":"249-60"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22076230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research productivity in animal learning from 1953 to 2000. 从1953年到2000年动物学习的研究生产力。
Animal Learning & Behavior Pub Date : 2002-08-01 DOI: 10.3758/bf03192837
Michael Domjan, Mark A Krause
{"title":"Research productivity in animal learning from 1953 to 2000.","authors":"Michael Domjan, Mark A Krause","doi":"10.3758/bf03192837","DOIUrl":"10.3758/bf03192837","url":null,"abstract":"<p><p>Searches conducted with Medline and PsycInfo showed that the number of publications dealing with learning in animals increased between 1975 and 2000 and that the increase was substantially greater in Medline than in PsycInfo. An examination of major journals dealing with behavioral studies of conditioning and learning for the years 1953, 1963, 1973, 1983, 1993, and 2000 revealed a different pattern of results. The number of papers published in these journals increased from 1953 to 1973 but has been declining steadily since then. However, this decline was partially offset by an increase in the number of experiments published in each paper. Substantially more experiments were published in 2000 than in 1963 or 1953. The number of core authors in the field also peaked in 1973 and has been declining since. However, there were only seven fewer core authors in 2000 than in 1983, and 1983 had as many core authors as 1963. These data suggest that pessimism about the status of behavioral studies of learning is not warranted if research activity is considered over a 40-year period. Furthermore, increased interest in the neural and biological mechanisms of learning should bode well for the status of behavioral research, because one cannot examine the physiological mechanisms of a behavioral process without first clearly understanding the phenomenon at the behavioral level.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"30 3","pages":"282-5"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22076702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Imitative learning in Japanese quail (Coturnix japonica) using the bidirectional control procedure. 用双向控制程序研究日本鹌鹑的模仿学习。
Animal Learning & Behavior Pub Date : 2002-08-01 DOI: 10.3758/bf03192836
Chana K Akins, Emily D Klein, Thomas R Zentall
{"title":"Imitative learning in Japanese quail (Coturnix japonica) using the bidirectional control procedure.","authors":"Chana K Akins, Emily D Klein, Thomas R Zentall","doi":"10.3758/bf03192836","DOIUrl":"10.3758/bf03192836","url":null,"abstract":"<p><p>In the bidirectional control procedure, observers are exposed to a conspecific demonstrator responding to a manipulandum in one of two directions (e.g., left vs. right). This procedure controls for socially mediated effects (the mere presence of a conspecific) and stimulus enhancement (attention drawn to a manipulandum by its movement), and it has the added advantage of being symmetrical (the two different responses are similar in topography). Imitative learning is demonstrated when the observers make the response in the direction that they observed it being made. Recently, however, it has been suggested that when such evidence is found with a predominantly olfactory animal, such as the rat, it may result artifactually from odor cues left on one side of the manipulandum by the demonstrator. In the present experiment, we found that Japanese quail, for which odor cues are not likely to play a role, also showed significant correspondence between the direction in which the demonstrator and the observer push a screen to gain access to reward. Furthermore, control quail that observed the screen move, when the movement of the screen was not produced by the demonstrator, did not show similar correspondence between the direction of screen movement observed and that performed by the observer. Thus, with the appropriate control, the bidirectional procedure appears to be useful for studying imitation in avian species.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"30 3","pages":"275-81"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22076232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extinction revisited: similarities between extinction and reductions in US intensity in classical conditioning of the rabbit's nictitating membrane response. 灭绝重访:在兔的闪膜反应的经典条件反射中,灭绝和US强度减少之间的相似性。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192912
E James Kehoe, Natasha E White
{"title":"Extinction revisited: similarities between extinction and reductions in US intensity in classical conditioning of the rabbit's nictitating membrane response.","authors":"E James Kehoe, Natasha E White","doi":"10.3758/bf03192912","DOIUrl":"10.3758/bf03192912","url":null,"abstract":"<p><p>The mechanisms of extinction were examined by reducing the intensity of the unconditioned stimulus (US) after acquisition training to determine whether such reductions lie on a continuum with CS-alone extinction. The experiments revealed that reductions in US intensity yielded extinction-like effects. Specifically, there were proportional reductions in the daily mean level of responding across sessions. There were also persistent within-session declines and between-session increases of responding analogous to spontaneous recovery. Surprisingly, even when US intensity was held constant, within-session declines and between-session increases were apparent. The results are discussed with respect to possible contributions from unlearning, new learning, generalization decrement, and nonassociative loss, especially CS-specific attentional changes and CR-specific reactive inhibition.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"39 1","pages":"96-111"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73427320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enumeration of briefly presented items by the chimpanzee (Pan troglodytes) and humans (Homo sapiens). 列举黑猩猩(类人猿)和人类(智人)简要介绍的项目。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192916
Masaki Tomonaga, Tetsuro Matsuzawa
{"title":"Enumeration of briefly presented items by the chimpanzee (Pan troglodytes) and humans (Homo sapiens).","authors":"Masaki Tomonaga, Tetsuro Matsuzawa","doi":"10.3758/bf03192916","DOIUrl":"10.3758/bf03192916","url":null,"abstract":"<p><p>In this study, we compared the performances on an enumeration task (numerical labeling task) of 1 chimpanzee (Pan troglodytes) and 4 humans. In this task, two types of trials, with different exposure durations of the sample that was to be enumerated, were used. In the unlimited-exposure trials, the sample remained on until the subject made a choice. In the brief-exposure trials, the sample was presented for 100 msec and then was masked. The results show clear differences between the different species. The main differences had to do with accuracy during the unlimited trials and response times during the brief trials. Detailed analyses of the pattern of response times for the chimpanzee and of looking-back behavior during the task suggests that the enumeration process underlying the subject's performance was not counting but estimation.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"1 1","pages":"143-57"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79821334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Target-defining features in a "people-present/people-absent" discrimination task by pigeons. 鸽子“人在/人不在”判别任务中的目标定义特征。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192918
Ulrike Aust, Ludwig Huber
{"title":"Target-defining features in a \"people-present/people-absent\" discrimination task by pigeons.","authors":"Ulrike Aust, Ludwig Huber","doi":"10.3758/bf03192918","DOIUrl":"10.3758/bf03192918","url":null,"abstract":"<p><p>Aust and Huber (2001) demonstrated that in a people-present/people-absent discrimination task, pigeons actually attended to properties of the target (i.e., the human figure). The aim of the present effort was to specify what sort of information contained in the target was used for classification, as well as to investigate whether and in what way the target-defining features interacted. Six pigeons were trained in a go/no-go procedure to discriminate between color photographs characterized by the presence or absence of people. They were then presented with various types of test stimuli that contained some category-relevant features but lacked others. The results showed that properties related to target size and internal structure played an important role and that human silhouettes were insufficient for eliciting a people-present response. Furthermore, some properties of the human figure (e.g., hands/arms) made good predictors of the people-present category, whereas others (e.g., feet/legs or skin color) did not. Responses to test stimuli that belonged to the people-absent category but nevertheless contained some features normally typical for humans (e.g., nonhuman primates) provided evidence that various category-relevant features contributed to classification in an additive way. Taken together, the results suggest that the pigeons made use of a polymorphous class rule involving collections of differently weighted target features.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"29 1","pages":"165-76"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81407036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation and development of a connectionist theory of configural learning. 构形学习的联结主义理论的评价与发展。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192911
John M Pearce
{"title":"Evaluation and development of a connectionist theory of configural learning.","authors":"John M Pearce","doi":"10.3758/bf03192911","DOIUrl":"10.3758/bf03192911","url":null,"abstract":"<p><p>A configural theory of associative learning is described that is based on the assumption that conditioning results in associations between the unconditioned stimulus and a representation of the entire pattern of stimulation that was present prior to its delivery. Configural theory was formulated originally to account for generalization and discrimination in Pavlovian conditioning. The first part of the article demonstrates how this theory can be used to explain results from studies of overshadowing, blocking, summation, and discrimination learning. The second part of the article shows how the theory can be developed to explain a broader range of phenomena, including mediated conditioning, reinforcer devaluation effects, the differential outcomes effect, acquired equivalence, sensory preconditioning, and structural discriminations.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"45 1","pages":"73-95"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84905784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integration of cardiac responses to serial stimuli after Pavlovian conditioning in rats. 巴甫洛夫条件反射后大鼠心脏对一系列刺激反应的整合。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192915
Alain R Marchand
{"title":"Integration of cardiac responses to serial stimuli after Pavlovian conditioning in rats.","authors":"Alain R Marchand","doi":"10.3758/bf03192915","DOIUrl":"10.3758/bf03192915","url":null,"abstract":"<p><p>The expression of cardiac responses to sequences of two sounds was studied in restrained rats following discriminative trace or delay conditioning. Stimuli paired with a tail shock 10 sec later (CS1) elicited conditioned bradycardia. Unpaired or neutral stimuli (CS0) elicited mostly tachycardia. Rats did not learn to suppress responding to nonreinforced sequences with an interval of 6 sec between sounds. Responses to the second stimulus were significantly augmented following a CS1 stimulus, but not following a CS0 stimulus. Real-time summation of simple responses provided a more complete and quantitative prediction of dual responses than did resetting or facilitation. These results extend the time range over which summation may be observed from less than 2 sec to at least 16 sec. They appear to be inconsistent with models involving competition between unitary representations of stimuli in short-term memory and suggest the existence of multiple stimulus traces with independent time courses.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"164 1","pages":"132-42"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79816131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An empirical analysis of the super-latent inhibition effect. 超潜伏抑制效应的实证分析。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192913
L G De la Casa, R E Lubow
{"title":"An empirical analysis of the super-latent inhibition effect.","authors":"L G De la Casa, R E Lubow","doi":"10.3758/bf03192913","DOIUrl":"10.3758/bf03192913","url":null,"abstract":"<p><p>In three conditioned taste aversion experiments, we examined the roles of several variables in producing super-latent inhibition (LI). This effect, greater LI after a long interval than after a short interval between the conditioning and the test stages (De la Casa & Lubow, 2000), was shown to increase with the number of stimulus preexposures (0, 2, or 4; Experiment 1) and with the length of the delay interval (1, 7, 14, or 21 days; Experiment 2). Furthermore, super-LI was obtained when the delay interval was introduced between the conditioning and the test stages (Experiments 1 and 2), but not when it was introduced between the preexposure and the conditioning stages (Experiment 3). The results are discussed in relation to interference explanations of LI.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"210 1","pages":"112-20"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89040637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The influence of a distractor during compound preexposure on latent inhibition. 复合预暴露过程中干扰物对潜在抑制的影响。
Animal Learning & Behavior Pub Date : 2002-05-01 DOI: 10.3758/bf03192914
Phil Reed, Elias Tsakanikos
{"title":"The influence of a distractor during compound preexposure on latent inhibition.","authors":"Phil Reed, Elias Tsakanikos","doi":"10.3758/bf03192914","DOIUrl":"10.3758/bf03192914","url":null,"abstract":"<p><p>Nonreinforced exposure to a nontarget stimulus that was followed by nonreinforced exposure to a target/nontarget simultaneous compound stimulus resulted in enhanced latent inhibition of the target. Conditioning was slower after this treatment than after nonreinforced exposure to the target stimulus alone (Experiment 1). However, a salient auditory stimulus presented immediately after the compound in the second phase reduced levels of latent inhibition, relative to the enhanced latent inhibition produced when no such extracompound stimulus was presented (Experiments 2 and 3). This effect was not noted if the salient auditory cue was presented 10 sec after the termination of the compound stimulus (Experiment 4). In Experiment 5, there was no disruption of simple latent inhibition produced by a salient stimulus. These results are consistent with enhanced latent inhibition's being produced by the formation of within-compound associations, which are disrupted by the salient extracompound stimuli.</p>","PeriodicalId":7824,"journal":{"name":"Animal Learning & Behavior","volume":"59 1","pages":"121-31"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77003590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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