Journal of Comparative Psychology最新文献_第2页

Testing the waters: Attempts by wild killer whales (Orcinus orca) to provision people (Homo sapiens). 试水：野生虎鲸（Orcinus orca）试图为人类（智人）提供食物。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2026-02-01 Epub Date: 2025-06-30 DOI: 10.1037/com0000422

Jared R Towers, Ingrid N Visser, Vanessa Prigollini

{"title":"Testing the waters: Attempts by wild killer whales (Orcinus orca) to provision people (Homo sapiens).","authors":"Jared R Towers, Ingrid N Visser, Vanessa Prigollini","doi":"10.1037/com0000422","DOIUrl":"10.1037/com0000422","url":null,"abstract":"Altruistic behaviors such as prey sharing are prosocial acts that can instigate and perpetuate various forms of reciprocity. Subsequent relationship dynamics provide a foundation for the evolution of societal norms and associated encephalization in social taxa, like primates and dolphins. Some cultures within these families benefit from interactions with other mammal species but accounts of any wild animals attempting to provision humans are extremely rare. In this article, we present 34 cases of both sexes and all age classes of killer whales (Orcinus orca) offering prey and other items to people who were on boats (n = 21), in the water (n = 11), and on shore (n = 2) in four oceans. A total of 18 species were offered-six fishes, five mammals, three invertebrates, two birds, one reptile, and one seaweed. In almost every case the whales awaited a human response before subsequently reacting. The occurrence of these events suggests a limited cost to exploratory behaviors in some populations of this species. We suggest these apparently nonrandom cases may be representative of interspecific generalized altruism. This behavior may represent some of the first accounts of any wild predator intentionally using prey and other items to directly explore human behavior and thus may highlight the evolutionary convergence of intellect between highest order primates and dolphins. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"45-55"},"PeriodicalIF":0.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144531190","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

Vocal signals produced by the domestic cat (Felis silvestris catus) in highly motivating contexts. 家猫（Felis silvestris catus）在高度激励的环境中发出的声音信号。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2026-02-01 Epub Date: 2025-04-28 DOI: 10.1037/com0000418

Naila Fukimoto, Natalia Albuquerque, Carine Savalli

{"title":"Vocal signals produced by the domestic cat (Felis silvestris catus) in highly motivating contexts.","authors":"Naila Fukimoto, Natalia Albuquerque, Carine Savalli","doi":"10.1037/com0000418","DOIUrl":"10.1037/com0000418","url":null,"abstract":"Motivation influences essential behaviors for survival and well-being, driven by internal and external factors. By observing behaviors, we can understand motivational needs, decision-making processes, and preferences. Food acquisition is a survival motivator that covers a great part of daily activities, in contrast, play behavior shares a common basis with predation and social interactions. In the domestic cat, vocalizations, particularly the meow, are an acoustic signal expressing motivational and emotional states and are correlated to specific contexts, especially in cat-human interactions. This study investigated how contexts influenced meowing under two motivational conditions: feeding and play. Employing the synchronous citizen science approach, 48 guardians interacted with their cats as the researcher remotely recorded procedures involving presenting a feeder or toy and restricting access for 60 s. During the restriction periods, the cats could see and smell but not reach the stimulus. The condition influenced the frequency of meowing: they meowed significantly more in the feeding condition than in the play condition, suggesting a link between meowing frequency and the motivational context of eating, a crucial survival context. The food presentation likely influenced their motivation to vocalize. During feeding restriction, cats exhibited a significantly higher gazing at the guardian and gazing while meowing, suggesting the potential use of bimodal signals (visual and vocal) to enhance communication. In the play restriction condition, higher contact behaviors indicated a physical response to regain access, highlighting the play's social and motivational aspects. These findings help clarify contexts that motivate cats' vocalizations, aiding our understanding of their vocal communication. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"71-80"},"PeriodicalIF":0.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144056060","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

Dogs' (Canis familiaris) behavior on a social learning puzzle task is impacted by sex and demonstration but not oxytocin. 狗（Canis familiaris）在社交学习难题任务中的行为受到性别和示范的影响，但不受催产素的影响。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2026-02-01 Epub Date: 2025-07-31 DOI: 10.1037/com0000421

Erin Colbert-White, Matthew Q Maus, Alexa Tullis

{"title":"Dogs' (Canis familiaris) behavior on a social learning puzzle task is impacted by sex and demonstration but not oxytocin.","authors":"Erin Colbert-White, Matthew Q Maus, Alexa Tullis","doi":"10.1037/com0000421","DOIUrl":"10.1037/com0000421","url":null,"abstract":"Oxytocin's (OT's) influence on social behavior is highly complex and dependent upon context. Here, we addressed a gap in the literature on how OT impacts the learning process in a purely behavioral study. We conducted a 2 (OT, placebo) × 2 (demonstration, no demonstration) study in which dogs received 35 IU intranasal OT spray and demonstrations of how to solve a food puzzle. We tested subjects' levels of engagement with the puzzle as well as with three social partners-the experimenter, the helper, and the owner-both while the dogs were being introduced to the puzzle and while the dogs were allowed to engage with the puzzle. During the puzzle introduction, dogs that received a demonstration increased their gaze toward puzzle and experimenter, and decreased gaze toward their owner as compared to dogs that did not receive a demonstration. When allowed to engage with the puzzle, dogs that received a demonstration gazed more at the experimenter and opened more drawers compared to those receiving no demonstration, although the difference in their general puzzle interaction only trended toward significant. Moreover, more female than male dogs gazed at the experimenter during puzzle engagement, and there was a strong trend for more male than female dogs to solve the puzzle. Finally, results showed only a modest effect of OT on social partner-directed behaviors, including a possible sex-specific effect, and no impact of OT on social learning. The difficulty of the puzzle, identity of the social partner, and dogs' perceptions of the puzzle opening demonstration are discussed as possible contributing factors. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"56-70"},"PeriodicalIF":0.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144762349","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

Touching faces: The active role of infant capuchin monkeys (Sapajus libidinosus) in their social development. 触摸脸：幼年卷尾猴（Sapajus libidinosus）在社会发展中的积极作用。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2026-02-01 Epub Date: 2025-05-19 DOI: 10.1037/com0000420

Beatriz Felício, Beatriz Codogno, Carlene Gomes, Rafael Albuquerque, Patrícia Izar

{"title":"Touching faces: The active role of infant capuchin monkeys (Sapajus libidinosus) in their social development.","authors":"Beatriz Felício, Beatriz Codogno, Carlene Gomes, Rafael Albuquerque, Patrícia Izar","doi":"10.1037/com0000420","DOIUrl":"10.1037/com0000420","url":null,"abstract":"Touch has a significant impact on the development of infant primates, but it is still understudied. Little is reported, for example, about the effect of infants' touch on their environment and social development. In this study, we sought to fill this gap by investigating the touch of capuchin monkey (Sapajus libidinosus) infants on the faces of other individuals in the group. We followed eight wild infants (four females and four males) across their first 3 years of life and assessed whether this behavior is part of the social repertoire and whether it facilitates facial recognition. We coded all social events of the infants in 127.3 hr of video recorded weekly from birth until 36 months, through daily focal sampling. We recorded motor patterns of the behavior, the context, the partner touched, and the partners' response to each infant face touching. We found that touching was always associated with affiliative contexts. Infant face touching of other group members was associated with lipsmacking and grooming, consistently involving visual contact and exploration of the face by the infant's hand. In this species, face touching also occurred in response to engagement initiated by the touched individual, potentially signaling reciprocity in affiliative interactions and serving as a pleasurable gesture. (PsycInfo Database Record (c) 2026 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"34-44"},"PeriodicalIF":0.9,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144095946","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 0.9 4区心理学

Journal of Comparative Psychology Pub 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":""},"PeriodicalIF":0.9,"publicationDate":"2025-12-15","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

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 0.9 4区心理学

Journal of Comparative Psychology Pub 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) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-12-08","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

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 0.9 4区心理学

Journal of Comparative Psychology Pub 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":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-13","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

Morgan's ghosts: On canon, cognition, and what we still do not know. 摩尔根的幽灵：论经典、认知和我们尚不知道的东西。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2025-11-01 DOI: 10.1037/com0000435

Alice Auersperg

{"title":"Morgan's ghosts: On canon, cognition, and what we still do not know.","authors":"Alice Auersperg","doi":"10.1037/com0000435","DOIUrl":"10.1037/com0000435","url":null,"abstract":"Comparative psychology has its share of historical ironies. A particularly delightful one comes from Lloyd Morgan himself. In Animal Behavior, which was published after An Introduction to Comparative Psychology (which contains Morgan's Canon), he marvels at a digger wasp that picks up a small pebble in her mandibles and uses it as a hammer to pound and tamp the earth sealing her burrow. what does the Canon mean to the scientists who use it today? A recent article in this issue by Voudouris et al. (2025) gives us a first empirical insight. Using systematic surveys, they shed light on what comparative cognition researchers actually think about Morgan's Canon, the associative-cognitive distinction, and the role of parsimony in interpreting animal behavior. Morgan's Canon began as a plea for rigor. Over time, it became a slogan, sometimes a straitjacket, occasionally a scapegoat. But it remains also a guardrail, a guide, and a goad: it guards against overreach, guides control design and interpretation, and goads us to spell out mechanisms. The new survey shows that researchers still value the Canon but use it with more flexibility and less dogmatism than in the past. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":"139 4","pages":"239-241"},"PeriodicalIF":0.9,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145410828","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

Changes in temporal cues elicit rhythmic discrimination in rats (Rattus norvegicus). 时间线索的变化引起了大鼠（褐家鼠）的节律性区分。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2025-11-01 Epub Date: 2025-03-03 DOI: 10.1037/com0000412

Ferran Mayayo, Juan M Toro

引用次数: 0

Decoding the dilemma: Exploring the rules and cues of egg rejection in the American robin (Turdus migratorius) through conjoint experimentation. 破解困境：通过联合实验探索美洲知更鸟（Turdus migratorius）卵子排斥的规则和线索。

IF 0.9 4区心理学

Journal of Comparative Psychology Pub Date : 2025-11-01 Epub Date: 2025-03-13 DOI: 10.1037/com0000410

Devin J Goodson, Daniel Hanley, Jeffrey P Hoover, Abbigail M Turner, Carena J van Riper, Mark E Hauber

{"title":"Decoding the dilemma: Exploring the rules and cues of egg rejection in the American robin (Turdus migratorius) through conjoint experimentation.","authors":"Devin J Goodson, Daniel Hanley, Jeffrey P Hoover, Abbigail M Turner, Carena J van Riper, Mark E Hauber","doi":"10.1037/com0000410","DOIUrl":"10.1037/com0000410","url":null,"abstract":"Uncovering the cognitive bases of egg rejection behavior in avian hosts of brood parasites carries significant comparative implications not only for our understanding of host-parasite coevolution but also for cross-species research aimed at assessing decision-making. In this study, we focused on the American robin (Turdus migratorius), a species that lays large, elongated, and immaculate blue eggs and is well studied for its robust rejection of smaller, rounder, white, and maculated eggs laid by the brood parasitic brown-headed cowbird (Molothrus ater). Employing a randomized multiple simultaneous parasitism paradigm, we experimentally investigated how model egg color, dimensions, and maculation influenced the rejection rates of eight distinct egg types across 28 different pairings of two eggs at a time. First, we assessed whether egg rejection decisions depended on model egg features. Then, for a subset of trials (36%) where one egg was accepted and the other was rejected, we utilized a conjoint design analysis, a methodology borrowed from economics and marketing. Using the conjoint analysis, we showed that white model eggs were 50% more likely to be rejected relative to blue eggs, small-round eggs were 39% more likely to be rejected compared to large-elongated model eggs, and maculated eggs were 19% more likely to be rejected compared to immaculate eggs. These findings reaffirmed the roles of egg color, dimension, and maculation as key visual cues influencing egg rejection behavior in American robins. These findings also offer methodological advancements to study egg rejection behavior and lend themselves to future comparisons of human and nonhuman decision-making processes. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"315-324"},"PeriodicalIF":0.9,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627059","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