Journal of Comparative Psychology最新文献

Investigating the role of prior cooperative experience on partner choice in Norway rats (Rattus norvegicus). 研究挪威大鼠（褐家鼠）先前合作经验对伴侣选择的作用。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-10-15 DOI: 10.1037/com0000460

Sophie Harrower, Emma Hughes, Manon K Schweinfurth

{"title":"Investigating the role of prior cooperative experience on partner choice in Norway rats (Rattus norvegicus).","authors":"Sophie Harrower, Emma Hughes, Manon K Schweinfurth","doi":"10.1037/com0000460","DOIUrl":"https://doi.org/10.1037/com0000460","url":null,"abstract":"Reciprocators who meet an uncooperative individual can respond by engaging in partner control through adjusting their behavior toward this partner accordingly, engaging in partner choice by avoiding this partner and approaching more cooperative partners, or doing both. However, few studies have explored the respective roles of partner control and choice within the same species. Here we asked whether Norway rats, who have been shown to engage in partner control in different reciprocal cooperation paradigms, also use partner choice to interact with conspecifics. Partner choice could be underpinned by a preference for cooperative partners (positivity bias), an aversion to uncooperative partners (negativity bias), or a combination of both. Thus, we tested for these biases by first allowing focal rats to experience partners that differed in their level of cooperation during allogrooming. Thereafter, focal rats were given the choice to spend time either with the previously experienced more cooperative or less cooperative partners, or with neutral partners they had not interacted with for 40 min. Focal rats consistently preferred neutral partners over previous interaction partners and showed no difference in preference between more or less cooperative partners. Our results could be explained by a motivation to reunite with neutral partners, which could have overridden partner choice effects based on cooperation within the timeframe of the experiment. Further research is required to clarify the importance of partner choice to reciprocal cooperation in rats. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149197973","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}

引用次数: 0

A new behavioral method for assessing relational reasoning: Transitive inference list task. 一种新的评价关系推理的行为方法：传递推理列表任务。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-09-28 DOI: 10.1037/com0000459

Olga F Lazareva, Velouria Mars, Regina Paxton Gazes

{"title":"A new behavioral method for assessing relational reasoning: Transitive inference list task.","authors":"Olga F Lazareva, Velouria Mars, Regina Paxton Gazes","doi":"10.1037/com0000459","DOIUrl":"10.1037/com0000459","url":null,"abstract":"Nonverbal transitive inference (TI) is the ability to derive novel relationships among items based on their existing relationships (e.g., if B > C and C > D, then B > D). Interpreting nonverbal TI research has been challenging due to the difficulty of distinguishing genuinely inferential behavior from performance driven by differences in associative strength accumulated during training. To address these shortcomings, we developed a novel transitive inference list (TIL) task designed to minimize associative strength confounds and provide a clear behavioral signature of competing strategies. In the TIL task, participants learn three short sequences (A → B → C, C → D → E, and E → F → G) in a simultaneous chaining procedure requiring responses to all items in the correct order. Later, participants respond to within-list comparisons (e.g., BC) and a variety of between-list comparisons (e.g., BD, AF, and CF) that either align (consistent pairs) or conflict (conflicting pairs) with trained ordinal positions. Participants who were aware of the overlap between sequences showed evidence of integrating the training sequences into a single, unified list (i.e., A → … → G), correctly selecting the item higher in the integrated list even on conflicting between-list comparisons. Consistent with results from traditional TI and SC tasks, unaware participants did not form an integrated list, instead relying on sequence-specific ordinal positions to guide choice behavior. The TIL task therefore provides a powerful tool for studying inferential behavior that is particularly well suited for comparative research across species. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149076785","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}

引用次数: 0

A cross-species test of cognitive flexibility: Assessing the influence of phrasing cue modality on serial pattern performance in rats (Rattus norvegicus) and humans (Homo sapiens). 认知灵活性的跨物种测试：评估措辞线索模态对大鼠（褐家鼠）和人类（智人）连续模式表现的影响。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-09-21 DOI: 10.1037/com0000451

Katherine Dyer, Lucrezia Speranza, Stephen B Fountain

{"title":"A cross-species test of cognitive flexibility: Assessing the influence of phrasing cue modality on serial pattern performance in rats (Rattus norvegicus) and humans (Homo sapiens).","authors":"Katherine Dyer, Lucrezia Speranza, Stephen B Fountain","doi":"10.1037/com0000451","DOIUrl":"10.1037/com0000451","url":null,"abstract":"The serial multiple choice task is a cross-species model of serial pattern learning that recruits multiple cognitive mechanisms concurrently. The task requires subjects to learn a complex sequence of responses that follow a specific pattern, which is further organized by the placement of distinct cues throughout the sequence. These cues, termed phrasing cues, denote locations in the pattern where response strategy shifts. Although research suggests that phrasing cues facilitate pattern learning, there is a lack of information on how subjects encode these phrasing cues during the pattern learning process. Thus, the current study investigated this further. In this study, rats and humans completed a computerized version of the serial multiple choice task, in which subjects learned a complex serial pattern with either a temporal or spatial phrasing cue. Following acquisition of the pattern, the phrasing cues were then switched between groups to assess if pattern performance could generalize across different phrasing cue modalities. Although both phrasing cues similarly facilitated pattern acquisition, the subsequent cue switch produced performance impairments for both species. These results indicate limits in the cognitive flexibility available during serial pattern learning, as neither humans nor rats appeared to readily abstract the function of the phrasing cue independent of its stimulus characteristics. Instead, subjects encoded the specific stimulus characteristics of the phrasing cue within the pattern as it was learned, somewhat limiting the generalizability of their learned behavior to novel contexts. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149013288","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}

引用次数: 0

Supervision, category structure, and selective attention in category learning: A comparative approach. 类别学习中的监督、类别结构与选择性注意：比较研究。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-09-21 DOI: 10.1037/com0000457

Hyungwook Yim, Leyre Castro, Jay I Myung, Edward A Wasserman, Vladimir M Sloutsky

{"title":"Supervision, category structure, and selective attention in category learning: A comparative approach.","authors":"Hyungwook Yim, Leyre Castro, Jay I Myung, Edward A Wasserman, Vladimir M Sloutsky","doi":"10.1037/com0000457","DOIUrl":"10.1037/com0000457","url":null,"abstract":"We investigated the interaction between supervision and category structure in visual categorization across two species that we assumed to have different abilities to selectively attend. Specifically, we compared humans and pigeons in a category learning task, in which the category structure (dense vs. sparse) and the level of supervision by corrective feedback (low vs. high) were manipulated. Results showed a benefit of supervision across species, which was particularly strong in learning the sparse categories. Moreover, both species benefited from category structures that had multiple category-relevant dimensions (i.e., dense categories). In addition, humans, who have a more advanced ability to attend selectively, showed faster learning and better generalization overall. Finally, attention was optimized to the category-relevant dimension in the sparse category only in humans. Subsequent computational simulation of the data indicated that these patterns were well explained by a parameter that controls the organism's ability to flexibly switch attention to category-relevant dimensions. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13600365/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149013323","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}

引用次数: 0

Evidence that anuran foot flagging displays function to exploit perceptual systems that mediate predator recognition. 有证据表明，蜥蜴的脚标记显示出了利用感知系统来调节捕食者识别的功能。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-09-10 DOI: 10.1037/com0000456

Nigel K Anderson, Jasausha Pope, Evan Donnachie, Yoshihiro Yajima, Doris Preininger, Matthew J Fuxjager

{"title":"Evidence that anuran foot flagging displays function to exploit perceptual systems that mediate predator recognition.","authors":"Nigel K Anderson, Jasausha Pope, Evan Donnachie, Yoshihiro Yajima, Doris Preininger, Matthew J Fuxjager","doi":"10.1037/com0000456","DOIUrl":"10.1037/com0000456","url":null,"abstract":"Animal perceptual systems can shape the evolution of communication signals that help individuals negotiate social interactions. Here, we study this concept by exploring how conserved object recognition systems in anuran amphibians relate to evolutionary innovations in visual signaling behavior. We focus specifically on Bornean rock frogs (Staurois parvus), given that males of this species wave at each other with their hindlimbs (foot flag) to compete for access to mates. Past work shows that males who see this signal freeze as though they saw a predator; thus, we test whether perceptual systems that help frogs and toads detect and respond to looming threats are intertwined with mechanisms that govern sexual competition. We find that this is likely the case, as visual activation of cognitive systems for predator detection trigger the output of behavior that typically mediates sexual competition, as well as hints of antipredator behavior (freezing and avoidance). When we visually activate these same cognitive systems for predator detection in anuran species that do not foot flag, we find no evidence of aggression-rather, these individuals simply produce canonical antipredator reactions. Altogether, these findings suggest that the perceptual systems for threat detection in foot flagging S. parvus are likely intertwined with the cognitive systems that underlie sexual competition. These results illuminate the way perceptual systems might drive signal innovations, potentially giving rise to bizarre displays that are otherwise difficult to explain. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148932024","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}

引用次数: 0

Capuchin monkeys (Sapajus [Cebus] apella) prefer larger sooner sequence payouts. 卷尾猴（Sapajus [Cebus] apella）更喜欢更大、更快的序列支付。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-08-03 DOI: 10.1037/com0000452

Jhonatan M Saldaña Santisteban, Sarah F Brosnan

{"title":"Capuchin monkeys (Sapajus [Cebus] apella) prefer larger sooner sequence payouts.","authors":"Jhonatan M Saldaña Santisteban, Sarah F Brosnan","doi":"10.1037/com0000452","DOIUrl":"https://doi.org/10.1037/com0000452","url":null,"abstract":"The peak-end effect, in which evaluations of experiences are disproportionately influenced by their most intense, most recent, or final moments, is seen consistently in humans but inconsistently in nonhuman primates. Understanding in what species and contexts these biases appear can help us better understand the evolution of these decision-making biases. Previous evidence in monkeys is contradictory, likely due to differences in experimental procedures. Thus, to assess whether capuchin monkeys (Sapajus [Cebus] apella) exhibit such biases, we tested 14 individuals in a manual two-item food sequence task. Across conditions, monkeys consistently preferred to consume the higher value item first, showing a start bias rather than the end bias characteristic of human decision-making and seen in some other primate studies. This preference was strongest among low- and middle-ranking individuals. However, replacing the low-value item with a delay did not affect choices, suggesting that it was discounted or ignored when monkeys were making their decisions. We consider several explanations for why our monkeys show a start bias rather than an end bias, including possible methodological influences on their choices, and how this affects our understanding of the evolution of these biases. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665084","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}

引用次数: 0

Gibbons (Nomascus leucogenys), siamangs (Symphalangus syndactylus), and chimpanzees (Pan troglodytes) account for proportional probabilities in a two-choice task. 长臂猿（Nomascus leucogenys）、猿猴（Symphalangus syndactylus）和黑猩猩（Pan troglodytes）在两项选择任务中占比例概率。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-08-01 Epub Date: 2025-12-08 DOI: 10.1037/com0000437

Jessica Crimston, Sue Tonga, Jonathan Redshaw, Thomas Suddendorf

{"title":"Gibbons (Nomascus leucogenys), siamangs (Symphalangus syndactylus), and chimpanzees (Pan troglodytes) account for proportional probabilities in a two-choice task.","authors":"Jessica Crimston, Sue Tonga, Jonathan Redshaw, Thomas Suddendorf","doi":"10.1037/com0000437","DOIUrl":"10.1037/com0000437","url":null,"abstract":"Probabilistic reasoning-the ability to predict outcomes based on the likelihood of different possibilities-is a key component of numerical cognition and is critical for navigating uncertain environments. However, it is unclear whether this capacity is shared with our closest relatives, the great apes, or with even more distantly related species such as the small apes. Here, we presented two gibbons (Nomascus leucogenys), two siamangs (Symphalangus syndactylus), and three chimpanzees (Pan troglodytes) with a proportional probability task requiring them to reason from the distribution of items in a population to the likely contents of a sample. In contrast to previous research, we ensured that participants could not rely on two salient heuristics-the absolute quantity of the preferred item or majority sampling-to solve the task. We found that individuals of all species were able to distinguish between 0% versus 50% and 50% versus 100%, and that two individuals (one chimpanzee and one siamang) were able to convincingly distinguish between 33% versus 67%. These results suggest that an antecedent to probabilistic reasoning was shared by a common ancestor of humans, great apes, and small apes. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"179-187"},"PeriodicalIF":1.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710102","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}

引用次数: 0

Inside the parrot beak-and-tongue apparatus: Unlocking a model system for dexterity research. 鹦鹉喙舌器官内部：为灵巧性研究解锁模型系统。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-08-01 Epub Date: 2026-02-23 DOI: 10.1037/com0000440

Özge Nasa, Alice A M I Auersperg

引用次数: 0

Learning to discriminate between shapes generalizes to novel stimuli in North American river otters (Lontra canadensis): A preliminary study on perceptual categorization. 在北美河獭（Lontra canadensis）中，学习区分形状可以推广到新的刺激：知觉分类的初步研究。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-08-01 Epub Date: 2025-11-13 DOI: 10.1037/com0000436

Jessica J Wegman, Catina Wright, Kenneth Tyler Wilcox, Caroline M DeLong

{"title":"Learning to discriminate between shapes generalizes to novel stimuli in North American river otters (Lontra canadensis): A preliminary study on perceptual categorization.","authors":"Jessica J Wegman, Catina Wright, Kenneth Tyler Wilcox, Caroline M DeLong","doi":"10.1037/com0000436","DOIUrl":"10.1037/com0000436","url":null,"abstract":"Perceptual categorization is grouping objects based on similar physical features. Otters may use categorization to classify predators, prey, and conspecifics. This study was the first to examine whether North American river otters (Lontra canadensis) are capable of perceptual categorization. Previously, otters at the Seneca Park Zoo were trained to discriminate between a circle and an equilateral triangle in a two-alternative forced-choice task. In the present study, these otters were presented with novel geometric shapes (e.g., an oval and a right triangle) in Experiment 1 and novel drawings of real-world objects (e.g., a tomato and a tent) in Experiment 2 that could be classified into the circle or triangle category. Two otters performed significantly better than chance during Experiment 1 on subsets of the novel test stimuli. In Experiment 2, one otter was able to categorize drawings of real-world objects into two shape categories of circles and triangles, but only when the triangle-like stimuli were composed of straight lines, not when stimuli were composed of curved lines. The results from both experiments suggest that line type (straight vs. curved) and symmetry may have been salient features for the otters. It appears that otters have the ability to perceptually categorize two-dimensional shapes and line drawings, though further research with additional subjects and different stimuli is needed. Better understanding this ability in otters can expand our knowledge of categorization behavior in a variety of nonhuman animals. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"208-222"},"PeriodicalIF":1.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145514552","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}

引用次数: 0

How search images limit competition: The role of attention in collective foraging. 搜索图像如何限制竞争：注意力在集体觅食中的作用。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2026-08-01 Epub Date: 2025-12-15 DOI: 10.1037/com0000438

Keren Ighalo, Noam Miller

{"title":"How search images limit competition: The role of attention in collective foraging.","authors":"Keren Ighalo, Noam Miller","doi":"10.1037/com0000438","DOIUrl":"10.1037/com0000438","url":null,"abstract":"Many species forage collectively, and this will shape how they search for prey. However, theories of visual attention and search image formation have not considered social foraging, and studies of collective foraging rarely consider cognitive constraints. Here, we connected these ideas and present an agent-based model of collective foraging on cryptic prey in agents that either can or cannot form search images. Agents focused on one prey type reduce its local density, biasing other agents to form search images for other prey types. This effect, attentional character displacement, may reduce competition, as foragers occupy separate regions of \"attention-space.\" We found that the ability to modulate attention increases distance in attention-space and reduces competition, improving success rates. Agents that cannot modulate their attention benefit from foraging with those that can. We also found that some top-down control of search is critical to taking advantage of this effect. This cognitive-ecological approach to modeling collective foraging suggests that competition is a critical driver of the evolution of search images. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"169-178"},"PeriodicalIF":1.1,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145758312","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}

引用次数: 0