Learning & Behavior最新文献

Behavioral impact of adolescent social isolation stress: A multidimensional assessment in male NMRI mice. 青少年社会隔离压力对行为的影响：雄性NMRI小鼠的多维评估。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-04-20 DOI: 10.3758/s13420-026-00716-4

Hassina Belblidia, Djamila Aroune

{"title":"Behavioral impact of adolescent social isolation stress: A multidimensional assessment in male NMRI mice.","authors":"Hassina Belblidia, Djamila Aroune","doi":"10.3758/s13420-026-00716-4","DOIUrl":"https://doi.org/10.3758/s13420-026-00716-4","url":null,"abstract":"Rearing in social isolation (SI) during adolescence compromises brain development and behavior. Most studies have used post-weaning SI that encompasses the entire adolescence period to investigate the consequences of adverse early-life experiences. However, adolescence comprises heterogeneous developmental phases, characterized by differences in the timing of maturation of brain regions and the endocrine system, during which exposure to adverse environments may exert distinct effects on behavioral outcomes. Here, we assessed the immediate effects on a broad range of emotional and cognitive behaviors of a 3-week SI period during mid to late adolescence in male NMRI mice. We employed z-score standardization across behavioral domains, followed by principal component analysis (PCA), to enhance the accuracy of the behavioral phenotyping and to identify domain-specific behavioral vulnerabilities to stress. Our findings indicate that mid to late SI increased locomotor activity and induced anxiety- and depressive-like behaviors, without impairing the cognitive domain. PCA further revealed a significant separation between socially isolated and group-housed animals, with hyperactivity and depressive-like behavior emerging as the main contributors to this differentiation. These results demonstrate that even less extreme forms of SI, when applied from mid to late adolescence, can substantially alter emotional responses. This study highlights the vulnerability of this developmental window and supports the use of the NMRI mouse strain as a relevant model for investigating variability in stress-related behavioral responses.","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147730658","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

Behavioral characteristics of rapid visual categorization learning in domestic chicks. 家鸡快速视觉分类学习的行为特征。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-04-06 DOI: 10.3758/s13420-026-00715-5

E A Diffine, A A Tiunova, K V Anokhin

{"title":"Behavioral characteristics of rapid visual categorization learning in domestic chicks.","authors":"E A Diffine, A A Tiunova, K V Anokhin","doi":"10.3758/s13420-026-00715-5","DOIUrl":"https://doi.org/10.3758/s13420-026-00715-5","url":null,"abstract":"The ability to categorize objects and events is a highly adaptive property common among organisms with different nervous systems. Using a bead floor learning paradigm, we systematically analyzed the parameters that enable the rapid formation of a new visual category in young domestic chicks (Gallus gallus domesticus). In one short training session, newborn chicks successfully learned to distinguish food crumbs from the unfamiliar food-like plastic beads and group the latter into a new category of inedible objects. We found that a critical prerequisite for the category acquisition was the occurrence of several non-reinforced exploratory pecks, which served as a behavioral driver of categorization. The presence of food or previous association of the learning context with food reinforcement was not required for the formation of the new \"inedible object\" category. Chicks were also capable of forming two categories - edible and inedible objects - simultaneously, demonstrating parallel categorization abilities. Analysis of object features showed that changes in the shape or size of beads interfered with their generalization, whereas changes in color did not disrupt assignment of beads of a new color to a previously existing category. Our results provide an ecologically valid model of rapid visual categorization learning in chicks that allows integration of classical avian categorization paradigms with modern neurobiological methods, thus establishing a powerful framework for analysis of dynamics and neural mechanisms of categorical memory formation in avian species.","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147629000","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

Operant conditioning through positive reinforcement in the ghost crab (Ocypode quadrata). 鬼蟹正强化中的操作性条件反射。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-30 DOI: 10.3758/s13420-026-00713-7

Trent Robinson

{"title":"Operant conditioning through positive reinforcement in the ghost crab (Ocypode quadrata).","authors":"Trent Robinson","doi":"10.3758/s13420-026-00713-7","DOIUrl":"https://doi.org/10.3758/s13420-026-00713-7","url":null,"abstract":"Ghost crab (Ocypode quadrata) live in dynamic environments filled with numerous conspecifics, predators, and anthropogenic threats. The capacity to learn in these treacherous contexts could drastically improve the chances of survival and, perhaps, reproduction. Operant conditioning encompasses a suite of paradigms all meant to foster the acquisition of predictive relations between stimuli and behavior. Recent evidence suggests ghost crab are capable of relatively complex mental processes, and to add to the known cognitive repertoire evolved in this species, the current research exposed them to an operant conditioning regime. In a \"reinforced\" condition, animals were placed in a square experimental arena that adjacently positioned a green sticker and false escape hatch covered by a movable door on the same wall. Travel to the green sticker lifted the door to give brief visual access to a sand compartment (i.e. reward) visible through the false hatch. In a control condition, the environment was identical, but view of the sand compartment was yoked to sticker approaches from animals in the reinforced group. Across 3 hours of training, crabs in both conditions significantly increased their sticker approach rates. However, group differences across training blocks emerged and persisted after only 1 hour, such that crabs in the reinforced group displayed significantly higher approach rates compared to yoked controls. An exploratory analysis also revealed that learning rates were correlated positively to carapace size. Thus, this research demonstrates that ghost crabs are able to learn through positive reinforcement, and this skill is one that may develop across the lifespan.","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147582958","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

Anticipation of cyclical resource availability in the red-footed tortoise (Chelonoidis carbonaria): Implications for seed dispersal. 预测红足龟（Chelonoidis carbonaria）的周期性资源有效性：对种子传播的影响。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2025-09-26 DOI: 10.3758/s13420-025-00689-w

Francesca Soldati, Oliver H P Burman, Elizabeth A John, Thomas W Pike, Anna Wilkinson

{"title":"Anticipation of cyclical resource availability in the red-footed tortoise (Chelonoidis carbonaria): Implications for seed dispersal.","authors":"Francesca Soldati, Oliver H P Burman, Elizabeth A John, Thomas W Pike, Anna Wilkinson","doi":"10.3758/s13420-025-00689-w","DOIUrl":"10.3758/s13420-025-00689-w","url":null,"abstract":"Many plant populations are dependent on animal-mediated seed dispersal; however, in the study of mutualistic processes, animals are generally thought of as unselective consumers. This approach is problematic as it does not consider the decisions of the foraging animals, and little attention is given to the cognitive processes that underpin these behaviors. One such process is the ability to predict fruit availability, as this would allow animals to direct their foraging towards productive food sources and would ensure rapid seed removal when fruits are ready to be eaten. This is particularly important for species that cannot move rapidly between resources, such as tortoises. This study investigated temporal (24-h cycle) and visual cues use during food anticipation in captive red-footed tortoise (Chelonoidis carbonaria), an important seed disperser in its natural environment. A significant increase in activity was observed in the hour immediately preceding food delivery, suggesting that the tortoises learned to predict the availability of food. Test trials, in which the visual and temporal cues were put in conflict or removed, revealed that the tortoises used both sources of information to predict food availability. Moreover, extinction trials, in which the tortoises did not have reliable temporal or visual cues prior to feeding, resulted in a rapid loss of anticipatory behavior. These findings provide insights into the cognitive processes that control anticipatory foraging behavior and, as such, have important implications for both animal and plant fitness, furthering our knowledge of mutualistic services such as seed dispersal.","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"69-76"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12999829/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145180244","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

Bonobos know when you don't: Ape ignorance attribution. 倭黑猩猩知道你不知道：猿类无知归因。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2025-06-27 DOI: 10.3758/s13420-025-00680-5

Natalie Schwob

引用次数: 0

Introduction to the special issue honoring Suzanne MacDonald: Truly comparative and incomparable. 纪念苏珊娜·麦克唐纳的特刊简介：真正的可比性和无与伦比性。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI: 10.3758/s13420-025-00705-z

Jennifer Vonk

引用次数: 0

Cognitive strategies involved in the discrimination of geometric angles. 几何角度辨别的认知策略。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2026-02-25 DOI: 10.3758/s13420-025-00696-x

James F Reichert, Debbie M Kelly

引用次数: 0

Visual perception of rotated chromatic and achromatic 3D stimuli in goldfish (Carassius auratus). 金鱼（Carassius auratus）旋转彩色和消色差3D刺激的视觉感知。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2025-11-12 DOI: 10.3758/s13420-025-00687-y

Caroline M DeLong, Kathryn Gardner, Jessica J Wegman, Kenneth Tyler Wilcox

{"title":"Visual perception of rotated chromatic and achromatic 3D stimuli in goldfish (Carassius auratus).","authors":"Caroline M DeLong, Kathryn Gardner, Jessica J Wegman, Kenneth Tyler Wilcox","doi":"10.3758/s13420-025-00687-y","DOIUrl":"10.3758/s13420-025-00687-y","url":null,"abstract":"The ability to visually recognize objects despite differences in orientation would be advantageous for fish because they see objects from many viewpoints as they navigate their three-dimensional aquatic environment. We tested the ability of goldfish to recognize 3D chromatic and achromatic stimuli from four aspect angles in three rotation planes using a two-alternative forced-choice task. The fish were trained to discriminate between plastic models of a frog and turtle at 0°, then tested with the same objects at 0°, 90°, 180°, and 270°. In Experiments 1 and 2, the stimuli were presented in color, whereas in Experiment 3, the same stimuli were painted black. In Experiment 1, the fish performed significantly better than chance at all aspect angles (0°, ±90°, 180°) and in all three rotation planes. The goldfish displayed viewpoint-invariant performance in the picture plane, but showed enhanced performance at 0° for the two depth plane rotations, which suggests some viewpoint-dependent processes. In Experiment 2, performance accuracy was high regardless of whether the reinforced stimulus (S+) or the non-reinforced stimulus (S-) was rotated in the picture plane. In Experiment 3, two of four fish were successful in recognizing rotated achromatic stimuli. These results, taken together with other studies, suggest that goldfish more easily achieve visual object constancy when the stimuli contain surface features (color, texture, shading).","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"37-59"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12999622/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145507735","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

Animal cultures matter for conservation, but also to animals. 动物文化不仅对保护动物很重要，对动物也很重要。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.3758/s13420-025-00700-4

Simon Fitzpatrick, Kristin Andrews

{"title":"Animal cultures matter for conservation, but also to animals.","authors":"Simon Fitzpatrick, Kristin Andrews","doi":"10.3758/s13420-025-00700-4","DOIUrl":"10.3758/s13420-025-00700-4","url":null,"abstract":"A growing acceptance that many nonhuman animal communities have distinct cultures - group-variable patterns of behavior and information sustained over time by social learning - is beginning to reshape thinking about animal conservation. Culture, in this sense, can significantly influence how different populations interact with their environment and respond to environmental changes, and, therefore, has important implications for conservation. The literature on animal culture and conservation has led to valuable insights about how to protect endangered cultural animals. It has also led to some challenging questions. Should protecting animal cultural diversity become a new conservation goal, along the lines of preserving biodiversity? Should culture be an important consideration in prioritizing populations for conservation? Should we be designating animal \"cultural heritage sites\" for special protection, analogous to heritage sites of special significance for humans? This paper explores these questions and various arguments for preserving animal culture that have been offered in the literature. These include both instrumental arguments and arguments that suggest that animal cultures are of intrinsic value in their own right. These arguments raise important considerations, but they do not address all the ways in which animal cultures matter. We argue for more sustained attention to animals' own interests in culture: animal cultures matter first and foremost because they matter to the animals themselves. Animals' interests with respect to culture are not only about preserving practices or geographical locations, but include more abstract interests in protecting opportunities for agency, self-determination, and changing cultural traditions.","PeriodicalId":49914,"journal":{"name":"Learning & Behavior","volume":" ","pages":"163-179"},"PeriodicalIF":1.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12999661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146229518","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

Emergence of orthogonal hippocampal representations during spatial learning. 空间学习过程中海马体正交表征的出现。

IF 1.5 4区心理学

Learning & Behavior Pub Date : 2026-03-01 Epub Date: 2025-05-01 DOI: 10.3758/s13420-025-00674-3

Verner P Bingman

引用次数: 0