{"title":"The sequencing of trials during partial reinforcement affects subsequent extinction.","authors":"Justin A Harris","doi":"10.1037/xan0000369","DOIUrl":"10.1037/xan0000369","url":null,"abstract":"<p><p>If a conditioned stimulus or response has been inconsistently (\"partially\") reinforced, conditioned responding will take longer to extinguish than if responding had been established by consistent (\"continuous\") reinforcement. This partial reinforcement extinction effect (PREE) is one of the best-known phenomena in associative learning but defies ready explanation by associative models which assume that a partial reinforcement schedule will produce weaker conditioning that should be less resistant to extinction. The most popular explanation of the PREE is that, during partial reinforcement, animals learn that recent nonreinforced (N) trials are associated with subsequent reinforcement (R), and therefore the presence of N trials during extinction serves to promote generalization of conditioning to extinction. According to sequential theory (Capaldi, 1966), animals can encode whole sequences (runs) of N trials and associate their memory of the sequence with subsequent R. The length of these N sequences during conditioning affects how long the animal will continue to respond during extinction. The present experiment used Pavlovian magazine approach conditioning with rats to test two predictions of this theory. Consistent with sequential theory, the PREE was sensitive to the length of the N sequence: conditioning with long sequences (runs of 3-5 N trials) produced a stronger PREE than conditioning with short sequences (runs of 1 or 2) even when the total number of N and R trials was held constant. Surprisingly, there was no PREE among rats trained with the short sequences. Moreover, contrary to the theory's prediction, interrupting the long N sequences with reinforced trials of a different conditioned stimulus did not affect the subsequent PREE. I conclude that uncertainty about reinforcement, rather than the memory of N sequences per se, is a key factor in the development of the PREE. (PsycInfo Database Record (c) 2024 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":" ","pages":"1-10"},"PeriodicalIF":0.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pedro M Ogallar, Juan M Rosas, José E Callejas-Aguilera
{"title":"Increasing previous but not concurrent extinction attenuates the \"extinction makes acquisition context specific\" effect in human predictive learning.","authors":"Pedro M Ogallar, Juan M Rosas, José E Callejas-Aguilera","doi":"10.1037/xan0000372","DOIUrl":"10.1037/xan0000372","url":null,"abstract":"<p><p>Four experiments in human predictive learning evaluated whether the extinction makes the acquisition context specific (EMACS) effect is attenuated when the increase in prediction error that extinction produces disappears. Participants had to evaluate the relationship between a given food (cue) that was ingested by an imaginary client of a given restaurant (context) and a potential gastric illness (outcome). The task was implemented using Gorilla online software. All participants received the relevant training in context A, and equivalent exposure to context B. Cue E was presented paired with the outcome in all groups. Cue E was then either extinguished (group E) or not extinguished (group NE), either previously or concurrently to training of the target cue (P). P was then tested in contexts A and B. When extinction was conducted concurrently, performance to P became context-dependent regardless of the number of extinction trials (12 or 24)-the EMACS effect. The EMACS effect disappeared when extinction was elongated to 24 trials, and conducted before acquisition of P. Implications of these results for attentional explanations of context processing are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"50 1","pages":"39-55"},"PeriodicalIF":0.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139378816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Supplemental Material for Effect of Instructions on the Microstructure of Human Schedule Performance","authors":"","doi":"10.1037/xan0000364.supp","DOIUrl":"https://doi.org/10.1037/xan0000364.supp","url":null,"abstract":"","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Primacy and recency in snails (Cornu aspersum).","authors":"Pablo Rubio, Judit Muñiz-Moreno, Ignacio Loy","doi":"10.1037/xan0000365","DOIUrl":"10.1037/xan0000365","url":null,"abstract":"<p><p>Pavlovian conditioning has been proven to be useful for the study of associative learning and animal cognition. This procedure can be used to observe certain memory phenomena. The appetitive conditioning of several neutral stimuli can result in higher response rates, and therefore a better memory, for the first and last stimuli of the series. This is equivalent to primacy and recency effects. In this work, the tentacle lowering procedure was employed to study these phenomena in the snail (<i>Cornu aspersum</i>). Subjects experienced five odorous conditioned stimuli (CS) paired with food (conditioning) in a specific order followed by the exposure to the CSs alone to measure the conditioned response (CR, conditioning test). For Experiment 1, the serial presentation of the five reinforced odors resulted in a higher CR for the initial and final odors in comparison with the middle ones. In Experiment 2, it was established that a 20-min trial is enough to produce appetitive conditioning in snail. For Experiment 3, the results of Experiment 1 were replicated while controlling for odor presentation order. Finally, in Experiment 4, the serial position effect was obtained when the interval between conditioning and test phases were minimized. The results observed in the present study provided evidence of the serial position effect in terrestrial snails. The theoretical implications of these are debated. (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"226-236"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The role of numerical and nonnumerical magnitudes in pigeons' conditional discrimination behavior.","authors":"Francisca Diaz, Edward A Wasserman","doi":"10.1037/xan0000368","DOIUrl":"10.1037/xan0000368","url":null,"abstract":"<p><p>Research on approximate numerical estimation suggests that numerical representations can be influenced by nonnumerical magnitudes. Current theories of numerical cognition differ on the nature of this interaction. The present project evaluated the effect of task requirements on the stimulus control exerted by numerical and nonnumerical magnitudes on pigeons' numerical discrimination behavior. In a series of experiments, we explored the effects of cumulative area and item size on pigeons' numerical discrimination. The effect of cumulative area was assessed by presenting visual displays in which cumulative area and item number were either positively correlated, uncorrelated, or negatively correlated. The effect of item size was evaluated by presenting displays in which the size of individual items was varied across trials. Results confirmed that pigeons' numerical discrimination behavior accorded with Weber's law, a prime indicator of nonsymbolic numerical representation. The results further indicated that pigeons did not use numerical information when nonnumerical magnitudes also provided reliable information to solve the discrimination task. However, task manipulations that rendered the information provided by nonnumerical magnitudes unreliable successfully shifted stimulus control toward numerical magnitudes. (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"253-272"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Switching from sucrose to saccharin: Extended successive negative contrast is not maintained by hedonic changes.","authors":"Simone Rehn, Robert A Boakes, Dominic M Dwyer","doi":"10.1037/xan0000362","DOIUrl":"10.1037/xan0000362","url":null,"abstract":"<p><p>Previous experiments found that acceptance of saccharin by rats was reduced if they had prior experience of sucrose or some other highly palatable solution. This reduction in saccharin consumption was particularly extended after a switch from sucrose. On the surface, this seems to correspond to a successive negative contrast (SNC) effect. This term was coined by C. F. Flaherty to describe the situation where consumption of a target solution is reduced by prior experience of a more valuable solution, typically a more concentrated version of the target solution. However, SNC effects are normally transient and assessed relative to a nonshifted control. Here, we confirm that the reduction in consumption seen when shifting from sucrose to saccharin is persistent and is seen relative to the traditional unshifted control. In addition, an analysis of licking microstructure showed that the shift from sucrose to saccharin suppressed the hedonic value of saccharin relative to controls, but this effect was less persistent than consumption suppression. Interestingly, a similar dissociation is observed in extinction of conditioned taste aversion (CTA): suppression of consumption produced by CTA is far more persistent than suppression of hedonic value. The comparison of results across procedures suggests that persistent SNC produced by a qualitative downshift from sucrose to saccharin appears different from quantitative downshifts in the concentration of a single solution, and qualitative downshift effects may involve CTA. (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"289-295"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Robert G Cook, Muhammad A J Qadri, Daniel I Brooks
{"title":"Same/different discrimination of motion by pigeons.","authors":"Robert G Cook, Muhammad A J Qadri, Daniel I Brooks","doi":"10.1037/xan0000359","DOIUrl":"10.1037/xan0000359","url":null,"abstract":"<p><p>Telling that one object or moment is different from another one is fundamental to cognition and intelligent behavior. Most investigations examining same/different (S/D) concepts in animals have relied on testing static visual stimuli. To move beyond this limitation, we investigated how five pigeons learned and performed a motion S/D discrimination. Using a go/no-go task, dynamic motion fields built from dot elements were presented in sequence to display repeating (same) or changing (different) motions. Each trial consisted of 10 motion segments presented in succession using the direction and rate of dot movement in the motion field to exemplify the S/D relations. The pigeons learned this motion S/D discrimination. We further tested their performance by varying the number and persistence of the dots in the motion fields. The results indicated the pigeons likely extracted globally integrated perceptual summaries of the motions for comparison across the segments. Testing differing organizations of the S/D relations across segments indicated that this discrimination could be determined from as few as two segments and involved an updating comparison of at least four or more segments of the sequence during their presentation. Collectively, the experiments establish for the first time that pigeons can use motion features to classify sequential same and different experiences. (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"237-252"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sara R Bond, Jordan Nerz, Sophie Jones, Taryn Pittman, Nate Jones, Kenneth J Leising
{"title":"The effects of feature extinction in dual-response feature-positive discriminations.","authors":"Sara R Bond, Jordan Nerz, Sophie Jones, Taryn Pittman, Nate Jones, Kenneth J Leising","doi":"10.1037/xan0000360","DOIUrl":"10.1037/xan0000360","url":null,"abstract":"<p><p>In a typical feature-positive discrimination, responding is reinforced (+) during the target stimulus (A) on trials with the feature stimulus (X), but not during target-alone trials (A-). When X and A are presented simultaneously, direct control by X is typically observed; however, when the stimuli are presented serially, X sets the occasion for responding to A. In the current dual-response procedures, one response (e.g., left lever press) was reinforced during feature-target trials (XA+) and a different response (e.g., right lever press) was reinforced during target-alone trials (A+). In Experiment 1, rats received either serial (X → A+) or simultaneous (X:A+) presentations of the feature-target compound along with target-alone trials (A+). Contrary to our predictions, the serial group failed to learn the discrimination and the simultaneous group demonstrated occasion setting. In Experiment 2, the salience of the feature was increased, which resulted in direct control by the feature in both groups. In Experiment 3, an additional serial group was included with a longer interval between the feature (X) and target (A). Despite the reduced temporal proximity of X to reinforcement, direct control was again observed in all groups. The current pattern of results in the simultaneous and serial groups is interpreted in relation to the enhanced salience of A relative to X, due to separate pairings of A-alone with reinforcement in the dual-response procedure. Consistent with previous findings, occasion setting was observed when A was most salient relative to X (Experiment 1, simultaneous group), but direct control was found when the salience of X was increased (Experiments 2-3). (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"273-288"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transition between habits and goal-directed actions in the renewal effect.","authors":"Shun Fujimaki, Yutaka Kosaki","doi":"10.1037/xan0000361","DOIUrl":"10.1037/xan0000361","url":null,"abstract":"<p><p>Three experiments with rats explored whether previously extinguished goal-directed and habitual responding recover with the same status using an ABA renewal preparation. In Experiments 1a and 1b, a lever-press response was minimally (four sessions) or extensively (16 sessions) trained in one context (Context A) and extinguished in another context (Context B). Then, outcome devaluation took place in either Context A or Context B in which a food pellet reinforcing the response was paired with lithium chloride (LiCl) for devalued groups and with saline for a control group. Finally, renewal of the extinguished response was tested in both Contexts A and B. We confirmed that both minimally and extensively trained responses renewed as goal-directed action regardless of the context in which devaluation took place. This finding was replicated in Experiment 2 even after more extended acquisition training (32 sessions). However, another group that received outcome devaluation before but not after extinction training showed habitual performance during extinction training as well as in a subsequent renewal test. Experiment 3 replicated these results and confirmed that renewal of goal direction for rats that received extinction training immediately prior to outcome devaluation was not an artifact of consecutive LiCl exposures over a short period of time in Experiments 1 and 2, using a more reliable devaluation protocol. Overall, the present results extend previous findings suggesting that actions and habits renew with the same status by returning to the original context after extinction. The most critical finding is the differential effects of pre- and postextinction devaluation on the expression of habitual behavior; extinction prior to devaluation may convert a habitual performance into a goal-directed action. This novel finding is discussed in relation to recent studies that identified several factors contributing to a transition from habitual to goal-directed control of instrumental behavior. (PsycInfo Database Record (c) 2023 APA, all rights reserved).</p>","PeriodicalId":54259,"journal":{"name":"Journal of Experimental Psychology-Animal Learning and Cognition","volume":"49 4","pages":"209-225"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50163759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}