Learning & BehaviorPub Date : 2025-09-01Epub Date: 2024-10-24DOI: 10.3758/s13420-024-00656-x
Melissa Johnston, Damian Scarf
{"title":"Are crows smart? Let them count the ways.","authors":"Melissa Johnston, Damian Scarf","doi":"10.3758/s13420-024-00656-x","DOIUrl":"10.3758/s13420-024-00656-x","url":null,"abstract":"<p><p>Liao et al. demonstrated that crows can count out loud, revealing a level of vocal control previously unobserved in nonhuman species. This discovery suggests that rather than being judged by primate standards, birds might represent a new benchmark for vocal and perhaps broader cognitive abilities.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"221-222"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142511971","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":"Common wall lizards learn familiar-unfamiliar identity of conspecifics through chemical cues.","authors":"Roberto Sacchi, Anita Curti, Paola Tassone, Benedetta Chiello, Stefano Scali, Marco Mangiacotti","doi":"10.3758/s13420-025-00670-7","DOIUrl":"10.3758/s13420-025-00670-7","url":null,"abstract":"<p><p>Despite numerous studies on individual recognition having been carried out on lizards, a clear demonstration that lizards are able to identify conspecifics is still lacking. Individual recognition in lizards involves identifying conspecifics based on distinctive characteristics, including physical, acoustic, and chemical cues. Lizards use specialized epidermal glands for intraspecific communication, which secrete a mixture of proteins and lipids. To demonstrate individual recognition, a training period needs to be devised to establish associations between traits and memories of interactions with other individuals. We thus performed a 3-week study on the common wall lizards (Podarcis muralis) to assess whether lizards are able to associate between previous experience with conspecifics and their chemical signals. Further, we investigated whether proteins played a role in this association. We acclimated 40 males to laboratory conditions during the first week. In the second week, we trained lizards to develop familiarity with odors (feces, urine, skin, femoral gland secretion) from previously unknown individuals. During the third week, we tested lizards by exposing them to odors from familiar and unfamiliar individuals. Lizards examined unfamiliar signals for longer in terms of time and frequency compared to familiar ones. These results form the basis of showing that lizards may be capable of recognizing conspecifics as different individuals, based on their chemical signals, even if the observed discrimination remains at the level of familiarity and unfamiliarity. The experiment does, however, demonstrate evidence of learned responses in common wall lizards.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"265-274"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12408672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143574549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2024-11-13DOI: 10.3758/s13420-024-00648-x
Emma Cox, Jeffrey S Katz
{"title":"Implicit knowledge of words in dogs.","authors":"Emma Cox, Jeffrey S Katz","doi":"10.3758/s13420-024-00648-x","DOIUrl":"10.3758/s13420-024-00648-x","url":null,"abstract":"<p><p>Previous investigations into referential use of object words by dogs have revealed limited understanding in this domain by most dogs. However, a recent study by Boros et al. (Current Biology, 34(8), 1750-1754, 2024) has provided neurological evidence suggesting that understanding of the referential nature of object words and the ability to form mental representations of objects may actually be prevalent among dogs.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"223-224"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631515","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}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2025-01-03DOI: 10.3758/s13420-024-00664-x
Muhammad A J Qadri, Suzanne L Gray
{"title":"Examination of hierarchical form perception in African grey parrots (Psittacus erithacus).","authors":"Muhammad A J Qadri, Suzanne L Gray","doi":"10.3758/s13420-024-00664-x","DOIUrl":"10.3758/s13420-024-00664-x","url":null,"abstract":"<p><p>The perception of objects is a challenging task that requires recognizing visual elements and integrating them into a whole. While human vision prioritizes attention to the overall configuration, data from other species suggests this bias towards global form perception is not universal. Studies with pigeons indicate preferential attention to local details when both local and global information may be diagnostic, but studies with other bird species are more limited. To examine whether this local bias is class-wide or potentially species-specific, we studied whether African grey parrots (Psittacus erithacus) have a bias towards local elements or the global configuration when processing Navon-like hierarchical form displays. Two parrots were tested using a computerized touch-screen two-alternative choice task that presented displays that were local-relevant or global-relevant. The results of several successive acquisition phases suggest that these parrots have no local or global bias, indicating differing evolutionary or ecological drives for visual processing among avian species.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"254-264"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142928452","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}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2024-11-20DOI: 10.3758/s13420-024-00658-9
Amalia P M Bastos, Elizabeth Warren, Christopher Krupenye
{"title":"What evidence can validate a dog training method?","authors":"Amalia P M Bastos, Elizabeth Warren, Christopher Krupenye","doi":"10.3758/s13420-024-00658-9","DOIUrl":"10.3758/s13420-024-00658-9","url":null,"abstract":"<p><p>In a recent study, Johnson and Wynne found that dogs classically conditioned to associate electric shocks with chasing a fast-moving mechanical lure inhibited chasing behaviour at test, while dogs conditioned with food rewards did not learn any operant behaviours to substitute chasing and therefore continued to interact with the lure. Here, we raise questions about the suitability of the training protocols and challenge the conclusion that shock collars impose minimal welfare impacts.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"227-228"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682876","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}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2024-11-13DOI: 10.3758/s13420-024-00651-2
Benjamin A Whittaker
{"title":"Variation in animal architecture: Genes, environment, and culture.","authors":"Benjamin A Whittaker","doi":"10.3758/s13420-024-00651-2","DOIUrl":"10.3758/s13420-024-00651-2","url":null,"abstract":"<p><p>A new study investigates how stingless bee colonies inherit one of two architecturally distinct types of comb and proposes the primary mechanism of inheritance as stigmergy: among-individual coordination in comb building informed by environmental cues (i.e., social artefacts). These findings highlight the importance of social information in creating and maintaining architectural variance among structures.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"225-226"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631491","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}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2025-03-10DOI: 10.3758/s13420-025-00669-0
Sinem Söylemez, Aycan Kapucu
{"title":"Examining disgust learning through category conditioning: Evidence from trial-unique presentations and oculomotor avoidance.","authors":"Sinem Söylemez, Aycan Kapucu","doi":"10.3758/s13420-025-00669-0","DOIUrl":"10.3758/s13420-025-00669-0","url":null,"abstract":"<p><p>Disgust is a basic emotion that motivates avoidance behaviors to protect organisms from pathogens. Objects of disgust are acquired through classical conditioning mechanisms. Oculomotor avoidance serves as an objective marker of disgust, yet previous studies have relied on repeated presentations to establish disgust conditioning. This study aimed to adapt the category-conditioning paradigm (Dunsmoor et al., Cerebral Cortex, 24, 2859-2872, 2014) for disgust learning by employing trial-unique presentations, offering a novel tool for future research. In our experiment, items of two categories - furniture and vehicles - were paired with either disgusting or neutral scenes. Participants' eye movements were tracked, and self-reported measures were collected. The results demonstrated that the category-conditioning task with trial-unique stimuli effectively induced oculomotor avoidance. Participants exhibited both unconditioned avoidance responses to disgusting scenes and conditioned avoidance responses to category items associated with disgust. Eye-tracking data further revealed that disgust-associated stimuli motivated avoidance beyond their role as mere predictors of an aversive stimulus. Interestingly, participants initially exhibited a tendency to view the disgusting image before engaging in avoidance behavior. In conclusion, this study demonstrates that the adapted category-conditioning paradigm successfully elicits conditioned responses using trial-unique stimuli. We believe that this paradigm will provide a valuable tool for future research on disgust learning.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"275-287"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12408749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143598164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Learning & BehaviorPub Date : 2025-09-01Epub Date: 2024-11-27DOI: 10.3758/s13420-024-00657-w
Rebecca Rose Hazel Bodeker, Randolph C Grace
{"title":"Effects of methamphetamine on delay discounting in rats using concurrent chains.","authors":"Rebecca Rose Hazel Bodeker, Randolph C Grace","doi":"10.3758/s13420-024-00657-w","DOIUrl":"10.3758/s13420-024-00657-w","url":null,"abstract":"<p><p>Research has examined how stimulants affect impulsive choice in delay-discounting tasks, but little is known about whether such drugs influence how discounting varies with reward magnitude. This study sought to investigate the effects of acute and chronic methamphetamine administration on rats' responding in a rapid acquisition choice task in which reward delays were changed unpredictably across sessions. In each group of four sessions, delays were unequal (1 s/8 s, or 8 s/1 s) or equal (1 s/1 s, or 8 s/8 s) while reward magnitudes were constant and unequal (one dipper cycle/four dipper cycles). This enabled us to obtain both estimates of delay discounting (i.e., sensitivity to delay) and the magnitude effect (in which larger rewards are discounted at a lower rate). Methamphetamine was administered in increasing doses acutely and chronically. Baseline results showed that rats reliably preferred the alternative with a shorter delay and that choice for the larger reward was greater when the delays were long, consistent with the magnitude effect. Acute methamphetamine dose dependently reduced both sensitivity to delay and the magnitude effect, but not sensitivity to magnitude. Chronic administration had no systematic effect on choice. This study is the first to report a magnitude effect with rats in a rapid acquisition choice procedure similar to that found in delay discounting research with humans, and suggests that acute methamphetamine administration reduces control by contingencies that change across sessions.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"232-247"},"PeriodicalIF":1.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142739666","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":"Vocal labeling of others by nonhuman primates: A response to Jaakkola (2025).","authors":"Guy Oren, David Omer","doi":"10.3758/s13420-025-00682-3","DOIUrl":"https://doi.org/10.3758/s13420-025-00682-3","url":null,"abstract":"<p><p>In this commentary, we respond to Jaakkola, (2025), who raised several concerns regarding our findings on vocal labeling in marmosets (Oren et al. Science, 385, 996-1003, 2024). We address each point in turn, clarifying that marmosets use socially learned, arbitrary vocal labels for specific conspecifics - labels that are neither imitations nor acoustically derived from the receiver's own calls. We show that classifier models trained on individual callers reliably identify the intended receiver, while cross-caller models reveal family-specific label conventions. We also provide evidence that vocal accommodation does not account for the observed behavior, and we argue that the consistent, receiver-specific use of labels reflects a stable mapping between individuals and calls - indicative of an internal representation of identity. Taken together, our findings support cognitively controlled social calling in marmosets and suggest a primate precursor to name-like referential communication.</p>","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976323","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":"What can soundboards tell us about canine communication?","authors":"Valerie A Kuhlmeier","doi":"10.3758/s13420-025-00679-y","DOIUrl":"https://doi.org/10.3758/s13420-025-00679-y","url":null,"abstract":"","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692217","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}