Journal of Comparative Psychology最新文献

No same-different concept or entropy stimulus control: Multiple-item array task performance in budgerigars (Melopsittacus undulatus) and pigeons (Columba livia).

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-03-27 DOI: 10.1037/com0000416

Sota Watanabe

{"title":"No same-different concept or entropy stimulus control: Multiple-item array task performance in budgerigars (Melopsittacus undulatus) and pigeons (Columba livia).","authors":"Sota Watanabe","doi":"10.1037/com0000416","DOIUrl":"https://doi.org/10.1037/com0000416","url":null,"abstract":"To investigate same-different conceptualization in nonhuman animals, researchers have used the multiple-item array task (MIAT), which requires discriminating whether icons in an array are the same or different from one another. Although entropy-based explanations for MIAT performance have been influential, their validity is debatable. In Experiment 1, budgerigars and pigeons were trained to discriminate whether 16 icons were the same or different from one another. When the number of icons was reduced, the discrimination tendency of both species was correlated with the entropy value, replicating previous findings. Experiment 2 further supported this correlation by controlling for the number of icons and icon patterns. However, Experiment 3 revealed that when entropy was constant, the subjects judged different more frequently for arrays with more icons per pattern, which contradicts entropy-based predictions. Notably, the response patterns of the subjects in Experiment 3 were inconsistent with logical same-different judgments, suggesting that these animals perform the MIAT based on criteria distinct from those of same-different conceptualization. These findings challenge the validity of typical MIAT for examining same-different concepts in animals and indicate the need to develop more reliable alternative methods. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143733263","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

Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) chase prey around obstacles in virtual environments.

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-03-24 DOI: 10.1037/com0000402

Emilie Rapport Munro, Sarah E Koopman, Sean P Anderson, Kenneth Schweller, Henrik Röhr, Max Kleiman-Weiner, Richard Lewis, Brandon Klein, Matthias Allritz, Lauren M Robinson, Francine L Dolins, Josep Call

{"title":"Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) chase prey around obstacles in virtual environments.","authors":"Emilie Rapport Munro, Sarah E Koopman, Sean P Anderson, Kenneth Schweller, Henrik Röhr, Max Kleiman-Weiner, Richard Lewis, Brandon Klein, Matthias Allritz, Lauren M Robinson, Francine L Dolins, Josep Call","doi":"10.1037/com0000402","DOIUrl":"https://doi.org/10.1037/com0000402","url":null,"abstract":"Apes require high volumes of energy-rich foods that tend to be patchily distributed, creating evolutionary pressures for flexible and complex cognition. Several species hunt mobile prey, placing demands on working memory and selecting for sociocognitive abilities such as predicting prey behavior. The mechanisms by which apes overcome foraging and hunting challenges are difficult to elucidate. Field investigations provide rich data sets but lack experimental control, limiting the gamut of questions they can answer, while experiments with captive subjects offer lower generalizability to real-world situations. Virtual environments (VEs) present a compromise, combining experimental specificity with proxies of realistic situations. In this study, chimpanzees and bonobos moved through a three-dimensional VE using a touchscreen. All subjects learned to chase and catch moving rabbits, some exhibiting high success rates even in the presence of large obstacles. Success in trials with a first-person (FP) viewpoint was much higher than in trials presented from overhead, suggesting that the immersive nature of FP trials helped subjects to understand their location in the environment better than when they took a top-down view. Data were analyzed using generative computational agent models, identifying that subjects occasionally employed anticipatory hunting strategies, but more often used a direct chasing strategy. This study validates the use of VEs as an experimental paradigm, demonstrating that apes can understand the behavior of moving agents in situations of varying complexity and that computational modeling can be utilized to delve into behavioral data at a fine-grained level and identify which of several cognitive strategies they fit best. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694152","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

Exploring personality structure and similarity in coppery titi monkeys (Plecturocebus cupreus).

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-03-24 DOI: 10.1037/com0000407

Nancy Rebout, Alexander Baxter, Karen L Bales, Pauline Zablocki-Thomas

{"title":"Exploring personality structure and similarity in coppery titi monkeys (Plecturocebus cupreus).","authors":"Nancy Rebout, Alexander Baxter, Karen L Bales, Pauline Zablocki-Thomas","doi":"10.1037/com0000407","DOIUrl":"https://doi.org/10.1037/com0000407","url":null,"abstract":"Recent research has shown that personality similarity between pair-bonded individuals can lead to better compatibility and well-being in humans. In our study, we explored the personality of 27 pairs of captive coppery titi monkeys (Plecturocebus cupreus), using a Hominoid Personality Questionnaire of 54 personality items. We also examined the effect of pair duration, pair affiliation, and the presence of offspring on the personality of these pairs. We built a model with five components to describe titi monkey personality structure in our colony and labeled these components as aggressive, cool, cautious, innovative, and helpful. Helpful, which we relate to \"agreeableness,\" was significantly higher in males than in females. Aggressive and helpful were correlated within couples. Helpful was also negatively related to the time spent since pairing. Innovative was higher for pairs with higher affiliation. Additionally, we compared personality similarity between a group of pairs that were created based on initial compatibility (determined via a \"speed-dating\" experiment), and a group of tenure-matched pairs that were determined quasirandomly. Pairs determined from speed dating were more helpful than pairs from the colony comparison group, which suggests that high levels of initial attraction may facilitate an increase in prosocial personality traits. Our findings, including the negative correlation of \"helpful\" with time since pairing and the heightened \"innovative\" trait in pairs with stronger affiliation, may suggest subtle dynamics within titi monkey personalities. These insights contribute to a broader understanding of nonhuman primate personalities. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694332","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

Decoding the dilemma: Exploring the rules and cues of egg rejection in the American robin (Turdus migratorius) through conjoint experimentation.

IF 1.1 4区心理学

Journal of Comparative Psychology Pub 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":"https://doi.org/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":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-13","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

Eyes or nose: Domestic dogs (Canis familiaris) prefer vision over olfaction when searching for food.

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-03-13 DOI: 10.1037/com0000415

Juliane Bräuer, Véronique Mann, Josepha Erlacher

{"title":"Eyes or nose: Domestic dogs (Canis familiaris) prefer vision over olfaction when searching for food.","authors":"Juliane Bräuer, Véronique Mann, Josepha Erlacher","doi":"10.1037/com0000415","DOIUrl":"https://doi.org/10.1037/com0000415","url":null,"abstract":"In recent decades, there has been a growing interest in exploring the cognition of domestic dogs. However, the role of olfaction and vision in dogs' perception of everyday situations has been underexplored. To investigate this topic, we used a simple food-searching paradigm. A treat was hidden in one of three locations, either (a) visible from the starting point (vision condition), (b) invisible from the starting point (smell condition), or (c) invisible with an additional decoy treat presented as a distraction (fake condition). About 87 dogs of various breeds were categorized into either the olfactory-focused or the vision-focused group based on their sniffing behavior in a pretest. It was hypothesized that olfactory-focused dogs would preferentially use their sense of smell for task solving, whereas vision-focused dogs would rely more on visual information. Thus, it was expected that dogs of each group would have an advantage in the corresponding condition. However, there was no difference between groups in the duration to find the food in the three conditions. In general, food was approached faster in the vision condition, and dogs in all groups were distracted by the presence of the fake food. Thus, for all dogs, the visual sense was more dominant than the olfactory sense, and they could easily switch between using the two senses. The results are discussed in light of breed differences and general perception skills of domestic dogs. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627061","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

Monkeys (Macaca mulatta) rank lists using multiple cognitive mechanisms simultaneously.

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-03-13 DOI: 10.1037/com0000405

Rael Sammeroff, Robert R Hampton

{"title":"Monkeys (Macaca mulatta) rank lists using multiple cognitive mechanisms simultaneously.","authors":"Rael Sammeroff, Robert R Hampton","doi":"10.1037/com0000405","DOIUrl":"https://doi.org/10.1037/com0000405","url":null,"abstract":"Memorizing the relations between items and learning relational rules are two ways in which sets of items can be ranked. We investigated the interaction of these types of learning in a series of five experiments with six adult male rhesus monkeys. We presented monkeys with three types of image sets. Scene sets were random images of natural scenes or cityscapes with no perceptually evident pattern by which to rank them. Relations among these images had to be learned through trial and error. Patterned sets were shapes that varied systematically along a physical dimension such as size such that a single rule for ranking them could be applied across images. Disordered sets were the same as Patterned sets, but monkeys were trained to rank them in an arbitrary order that was not consistent with differences along a physical dimension. Monkeys learned Scene sets more quickly than Patterned sets and Disordered sets, suggesting that monkeys memorize the relations between images relatively easily. In follow-up experiments, we found that monkeys also learned rules for the Patterned sets, indicated by the fact that they generalized performance to novel images and reversed ranks across the whole set after training with a single reversed pair. In Experiments 4 and 5, we investigated the interaction of memorization and relational rule learning with compound image sets that included both systematic physical variation and arbitrary visual content. We found further evidence that monkeys ordered images by both memorization and rules. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625818","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).

IF 1.1 4区心理学

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

Ferran Mayayo, Juan M Toro

引用次数: 0

Sensitivity to immature skill deficits. Food sharing experiments in squirrel monkeys (Saimiri boliviensis) and common marmosets (Callithrix jacchus).

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-02-13 DOI: 10.1037/com0000399

Sandro Sehner, Erik P Willems, Adrian Baumeyer, Leyla Davis, Carel P van Schaik, Judith M Burkart

{"title":"Sensitivity to immature skill deficits. Food sharing experiments in squirrel monkeys (Saimiri boliviensis) and common marmosets (Callithrix jacchus).","authors":"Sandro Sehner, Erik P Willems, Adrian Baumeyer, Leyla Davis, Carel P van Schaik, Judith M Burkart","doi":"10.1037/com0000399","DOIUrl":"10.1037/com0000399","url":null,"abstract":"Sharing food with immature individuals is costly and should therefore only occur when the benefits outweigh the costs. Accordingly, sharing typically decreases when immature individuals get older and become more proficient independent foragers. Providers would gain more if they could adjust food sharing not only to immature age but also to their skill level. Such sensitivity to others' skill deficits is expected to be rare, but may be found in species with high prosociality and other-regarding preferences, such as cooperative breeders. Here, we compared the food-sharing patterns of cooperatively breeding common marmosets (Callithrix jacchus) and closely related but independently breeding squirrel monkeys (Saimiri boliviensis) under two conditions. In the baseline condition, food was easily accessible whereas in the experimental condition, individuals had to solve a puzzle to access the food. We found that the cooperatively breeding marmosets, but not the independently breeding squirrel monkeys, shared more when immatures lacked the skill to obtain the food from the apparatuses. Skill sensitivity might be associated with the presence of other-regarding preferences and a strong proclivity to proactively share food during baseline conditions. This proclivity has evolved in marmosets, but not squirrel monkeys, in the context of cooperative breeding and may facilitate the emergence of skill recognition, information donation, and teaching. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416279","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

Selenophobia (moonlight avoidance) in nocturnal rodents: A primer.

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-02-13 DOI: 10.1037/com0000406

Raffaele d'Isa

{"title":"Selenophobia (moonlight avoidance) in nocturnal rodents: A primer.","authors":"Raffaele d'Isa","doi":"10.1037/com0000406","DOIUrl":"https://doi.org/10.1037/com0000406","url":null,"abstract":"Photophobia, aversion for brightly lit environments, is commonly observed in laboratory nocturnal rodents such as mice and rats, as indicated, for example, by the light-dark box test. The universality of photophobia in laboratory nocturnal rodents rises questions on its corresponding behavior in nature and on what adaptive value may have led to the selection of this behavior during biological evolution. Nocturnality alone is insufficient to explain photophobic behavior, as nocturnal rodents show reduced roaming in the day just because they are sleeping and not because they are choosing to avoid a possibly aversive daylight. On the other hand, a natural behavior more directly related to the photophobia observed in the laboratory is selenophobia (moonlight avoidance), which in free-ranging rodents can be operatively defined as the reduction of exploratory and foraging activities in moonlit nights compared with dark nights. In the case of selenophobia, factors related to nocturnality are ruled out, and light-related factors can be easily isolated. Selenophobia has been found in a wide variety of nocturnal rodents, for which it may represent an antipredatory adaptation. A technology-aided study of selenophobia may strongly contribute to a better understanding of its nature, of the relative contributions of instinct and learning to this behavior, and of its neural underpinnings. In particular, new behavioral and neurophysiological technologies, for example, miniaturized radiocollars, freely accessible testing chambers equipped with infrared video cameras, animal-borne miniaturized video cameras, and noninvasive electrophysiological recordings, may be of particular usefulness to shed light on selenophobia. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416275","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

Positive intonation increases the perceived value of smaller rewards in a quantity discrimination task with dogs (Canis familiaris). 在狗的数量辨别任务中，积极的语调会增加对较小奖励的感知价值。

IF 1.1 4区心理学

Journal of Comparative Psychology Pub Date : 2025-02-01 Epub Date: 2024-09-09 DOI: 10.1037/com0000392

Erin N Colbert-White, Devin C Anderson, Matthew Q Maus

{"title":"Positive intonation increases the perceived value of smaller rewards in a quantity discrimination task with dogs (Canis familiaris).","authors":"Erin N Colbert-White, Devin C Anderson, Matthew Q Maus","doi":"10.1037/com0000392","DOIUrl":"10.1037/com0000392","url":null,"abstract":"Like many other species, dogs have a natural quantity judgment system to assist with decision making to maximize resources. Additionally, dogs are highly sensitive to, and influenced by, human-delivered ostensive (i.e., social) cues. Here, we assessed the influence of one such cue-a high, rising, positive \"Oooh!\" sound-on dogs' choice of differing quantities of pieces of food presented on two different plates. Subjects (N = 29) received 16 randomized trials of four conditions: 1 versus 1 paired with experimenter \"Oooh!\" while looking at the one plate, 1 versus 3, 3 versus 1 paired with experimenter \"Oooh!,\" and 1 versus 1. As predicted, dogs chose the larger quantity more often in 1 versus 3 conditions. Contrary to one of our predictions, subjects chose the 1 versus 1+ \"Oooh!\" at chance levels. However, in support of another prediction, pairing the smaller reward with a positive intonation in 3 versus 1+ \"Oooh!\" significantly reduced dogs' choice of the larger reward. That is to say, without the presence of words, eye contact, or facial expressions, dogs followed a misguiding cue and chose a smaller reward that a stranger had deemed more valuable than a larger one. Local enhancement as well as a drive to increase social capital with the human are discussed as possible explanations. (PsycInfo Database Record (c) 2025 APA, all rights reserved).","PeriodicalId":54861,"journal":{"name":"Journal of Comparative Psychology","volume":" ","pages":"18-25"},"PeriodicalIF":1.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142301304","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