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Journal of Comparative Psychology

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https://www.readbyqxmd.com/read/28318293/yawning-and-social-styles-different-functions-in-tolerant-and-despotic-macaques-macaca-tonkeana-and-macaca-fuscata
#1
Alessandra Zannella, Roscoe Stanyon, Elisabetta Palagi
Yawning is a multifunctional behavior with a role in social communication. In Old World monkeys, the "tension yawn" is often used as a threat, allowing individuals to completely expose their canines. To explore the role of this phenomenon, we selected 2 closely related species-Japanese macaques (Macaca fuscata) and Tonkean macaques (M. tonkeana)-which differ primarily in terms of their tolerance levels. Japanese macaques are classified as despotic; Tonkean macaques are classified as tolerant. Both species live in multimale-multifemale societies, show a high level of sexual dimorphism, and have comparable yawning repertoires that include displaying a covered teeth yawn and an uncovered gums yawn...
March 20, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28318292/from-play-to-proficiency-the-ontogeny-of-stone-tool-use-in-coastal-foraging-long-tailed-macaques-macaca-fascicularis-from-a-comparative-perception-action-perspective
#2
Amanda W Y Tan
Macaques crack shellfish in coastal environments with specialized stone-hammering techniques. I provide the first examination of skill development from 866 object-manipulation and 7,400 tool-use bouts, collected over 15 months, using longitudinal analyses of infants' object manipulation (N = 7) and cross-sectional comparisons of manipulative and tool-use behavior (N = 69). I adopt a Perception-action approach, examining how the emergence of actions on objects relate to the spatial-relational and percussive challenges of tool use...
March 20, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28318291/consistent-individual-differences-in-standard-exploration-tasks-in-the-black-rat-rattus-rattus
#3
Barbora Žampachová, Barbora Kaftanová, Hana Šimánková, Eva Landová, Daniel Frynta
In a fluctuating environment, the optimal level of exploratory behavior depends on the proportion of current risks and benefits. The exploratory behavior is, therefore, often subjected to heterogenous selection. In populations of commensal rodents living in close proximity of humans, this pressure is further increased by pest management. We hypothesize that the black rat (Rattus rattus) responds to this pressure by either high behavioral flexibility or by development of personality types. The aim of this study was to analyze exploratory behavior and boldness of wild black rats and its changes over time to determine whether exploratory behavior is a personality trait in black rats...
March 20, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28301172/myrmica-rubra-ants-are-more-communicative-when-young-do-they-need-experience
#4
Natalia V Atsarkina, Sofia N Panteleeva, Zhanna I Reznikova
The role of experience in the development of communication in animals is a matter of special interest to many ethologists and psychologists. Ants are known to possess sophisticated and flexible communication systems based mainly on their antennal movements (Reznikova & Ryabko, 2011). However, it is still enigmatic whether young ants need stimulation performances by adults to develop their communication capacities. Experiments with pairwise interactions of Myrmica rubra ants revealed significant differences in individual behavior and the mode of communication in callow (newly emerged) and adult workers...
March 16, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28287756/early-expression-of-manual-lateralization-in-bipedal-marsupials
#5
Andrey Giljov, Karina Karenina, Janeane Ingram, Yegor Malashichev
Robust lateralization in forelimb use has recently been found in bipedal, but not quadrupedal, marsupial mammals. The link between bipedality and handedness, occurring in both marsupials and primates, remains to be investigated. To shed light on the developmental origins of marsupial manual lateralization, infants of macropod marsupials were examined before and shortly after the acquisition of habitual bipedal posture and locomotion. Forelimb preferences were assessed in natural, not artificially evoked, behaviors of infant red-necked wallaby in the wild and infant eastern gray kangaroo in free-ranging captivity...
March 13, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28287755/female-bearded-capuchin-monkeys-sapajus-libidinosus-use-objects-to-solicit-the-sexual-partner
#6
Elisabetta Visalberghi, Cecilia Di Bernardi, Luca A Marino, Dorothy Fragaszy, Patricia Izar
Female wild bearded capuchins (Sapajus libidinosus) living at Serra da Capivara National Park (SCNP) that use stone and stick tools during foraging occasionally toss or throw stones at the male during courtship. We report similar behaviors in a different population that uses stones as tools in foraging. We video-recorded the sexual behavior of four females (27 days during nine proceptive periods) belonging to a group of wild capuchins living in Fazenda Boa Vista (FBV), 320 km from SCNP. Three females used stones or branches when they solicited the alpha male (79 episodes)...
March 13, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28287754/characterizing-autism-relevant-social-behavior-in-poodles-via-owner-report
#7
Rachel M Zamzow, Lisa Lit, Shelley Hamilton, David Q Beversdorf
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterized by deficits in social communication and the presence of restricted, repetitive behaviors. It can be difficult to model the complex behavioral features of this disorder with rodent models, which have limited similarity to human behaviors. The domestic dog may be a promising model of complex human behavior, including core features of ASD. The present study examines ASD-relevant social behavior in Miniature and Standard Poodles using an owner-report questionnaire with questions adapted from the Autism Diagnostic Observation Schedule (Lord, Rutter, DiLavore, & Risi, 2000)...
March 13, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28277720/artificial-grammar-learning-in-tamarins-saguinus-oedipus-in-varying-stimulus-contexts
#8
Julie J Neiworth, Justin M London, Michael J Flynn, Deborah D Rupert, Owen Alldritt, Caleb Hyde
The human ability to detect regularities in sound sequences is a fundamental substrate of our language faculty. However, is this an ability exclusive to human language processing, or have we usurped a more general learning mechanism for this purpose, one shared with other species? The current study is an attempt to replicate and extend Hauser, Weiss, and Marcus's (2002) retracted study (2010) of artificial grammar learning in tamarins to determine if tamarins can detect an underlying grammatical structure in a pattern of sounds...
March 9, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28277719/stick-weaving-innovative-behavior-in-tamarins-saguinus-oedipus
#9
Charles T Snowdon, Thomas R Roskos
Some captive cotton-top tamarins spontaneously weave sticks in the mesh of their enclosures so that the stick is lodged between two mesh openings. Sticks are broken from natural branches placed in the enclosures and often modified by biting them in the center before weaving through the mesh. To investigate this further, we systematically surveyed all animals in our colony and found that all successful stick-weaving tamarins were descendants from only 2 of the 16 breeding groups contributing to the colony membership at the time of surveying or were the mates of these descendants, suggesting stick-weaving is a socially learned behavior...
March 9, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28277718/environmental-enrichment-of-young-adult-rats-rattus-norvegicus-in-different-sensory-modalities-has-long-lasting-effects-on-their-ability-to-learn-via-specific-sensory-channels
#10
Vassilissa Dolivo, Michael Taborsky
Sensory modalities individuals use to obtain information from the environment differ among conspecifics. The relative contributions of genetic divergence and environmental plasticity to this variance remain yet unclear. Numerous studies have shown that specific sensory enrichments or impoverishments at the postnatal stage can shape neural development, with potential lifelong effects. For species capable of adjusting to novel environments, specific sensory stimulation at a later life stage could also induce specific long-lasting behavioral effects...
March 9, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28263620/object-permanence-in-the-food-storing-coal-tit-periparus-ater-and-the-non-storing-great-tit-parus-major-is-the-mental-representation-required
#11
Lucie Marhounová, Daniel Frynta, Roman Fuchs, Eva Landová
Object permanence is a cognitive ability that enables animals to mentally represent the continuous existence of temporarily hidden objects. Generally, it develops gradually through six qualitative stages, the evolution of which may be connected with some specific ecological and behavioral factors. In birds, the advanced object permanence skills were reported in several storing species of the Corvidae family. In order to test the association between food-storing and achieved performance within the stages, we compared food-storing coal tits (Periparus ater) and nonstoring great tits (Parus major) using an adapted version of Uzgiris & Hunt's Scale 1 tasks...
March 6, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182489/do-capuchin-monkeys-sapajus-apella-prefer-symmetrical-face-shapes
#12
Annika Paukner, Lauren J Wooddell, Carmen E Lefevre, Eric Lonsdorf, Elizabeth Lonsdorf
In humans, facial symmetry has been linked to an individual's genetic quality, and facial symmetry has a small yet significant effect on ratings of facial attractiveness. The same evolutionary processes underlying these phenomena may also convey a selective advantage to symmetrical individuals of other primate species, yet to date, few studies have examined sensitivity to facial symmetry in nonhuman primates. Here we presented images of symmetrical and asymmetrical human and monkey faces to tufted capuchin monkeys (Sapajus apella) and hypothesized that capuchins would visually prefer symmetrical faces of opposite-sex conspecifics...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182488/experimental-evidence-of-contagious-stretching-and-ingroup-bias-in-budgerigars-melopsittacus-undulatus
#13
Andrew C Gallup, Janine Militello, Lexington Swartwood, Serena Sackett
Previous observational research suggests that stretching is contagious in budgerigars (Melopsittacus undulatus). Here we report the first experimental evidence of this response through a reanalysis of a previous experiment testing for contagious yawning in this species. Using a repeated measures design, 16 birds were tested as pairs alongside familiar and unfamiliar conspecifics with and without visual barriers. Our results show that stretching behavior was temporally clustered only when the birds could see one another, corroborating previous observational findings supporting contagion...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182487/exploring-whether-nonhuman-primates-show-a-bias-to-overestimate-dense-quantities
#14
Audrey E Parrish, Brielle T James, Michael J Beran
The density bias, documented within the foraging domain for some monkey species and for human infants, emerges when perceived numerosity is affected by interstimulus distance such that densely arranged food items appear more numerous relative to the same amount of food sparsely arranged. In this study, capuchin monkeys and rhesus monkeys were presented with a computerized relative discrimination task that allowed for the control of stimulus size, interelemental distance, and overall array pattern. The main objective was to determine whether the density bias was a more widespread and general perceptual phenomenon that extends beyond the foraging domain, similar to other numerosity illusions and biases...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182486/personality-dimensions-of-the-captive-california-sea-lion-zalophus-californianus
#15
Lillian E Ciardelli, Alexander Weiss, David M Powell, Diana Reiss
Although the field of animal personality research is growing, information on sea lion personality is lacking. This is surprising as sea lions are charismatic, cognitively advanced, and relatively accessible for research. In addition, their presence in captivity and frequent interactions with humans allow for them to be closely observed in various contexts. These interactions provide a valuable and unique opportunity to assess dimensions of their personality. This study created a personality survey for captive California sea lions (Zalophus californianus) using a 3-step approach that balances comprehensiveness and comparability to other species...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182485/-wolves-canis-lupus-and-dogs-canis-familiaris-differ-in-following-human-gaze-into-distant-space-but-respond-similar-to-their-packmates-gaze-correction-to-werhahn-et-al-2016
#16
(no author information available yet)
Reports an error in "Wolves (Canis lupus) and dogs (Canis familiaris) differ in following human gaze into distant space but respond similar to their packmates' gaze" by Geraldine Werhahn, Zsófia Virányi, Gabriela Barrera, Andrea Sommese and Friederike Range (Journal of Comparative Psychology, 2016[Aug], Vol 130[3], 288-298). In the article, the affiliations for the second and fifth authors should be Wolf Science Center, Ernstbrunn, Austria, and Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna/ Medical University of Vienna/University of Vienna...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182484/discrimination-of-emotional-facial-expressions-by-tufted-capuchin-monkeys-sapajus-apella
#17
Sarah E Calcutt, Taylor L Rubin, Jennifer J Pokorny, Frans B M de Waal
Tufted or brown capuchin monkeys (Sapajus apella) have been shown to recognize conspecific faces as well as categorize them according to group membership. Little is known, though, about their capacity to differentiate between emotionally charged facial expressions or whether facial expressions are processed as a collection of features or configurally (i.e., as a whole). In 3 experiments, we examined whether tufted capuchins (a) differentiate photographs of neutral faces from either affiliative or agonistic expressions, (b) use relevant facial features to make such choices or view the expression as a whole, and (c) demonstrate an inversion effect for facial expressions suggestive of configural processing...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182483/characterization-of-vocalizations-emitted-in-isolation-by-california-mouse-peromyscus-californicus-pups-throughout-the-postnatal-period
#18
Sarah A Johnson, Michele S Painter, Angela B Javurek, Claire R Murphy, Emily C Howald, Zoya Z Khan, Caroline M Conard, Kristal L Gant, Mark R Ellersieck, Frauke Hoffmann, A Katrin Schenk, Cheryl S Rosenfeld
Rodent species, such as monogamous and biparental California mice, produce vocalizations as a means of communication. A temporal examination of vocalizations produced by California mice pups in isolation was performed. Pup recordings were performed for 3 min at ∼10.00 and 14.00 hrs on early postnatal days (PND) 2-4, 7, 21, and 28. Once initial recordings were finished, pups were returned to the home cage with parents and any siblings for 5 minutes to determine if active biparental responses resulted in an enhanced vocalization response when pups were isolated and retested...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28182482/the-attribution-of-navigational-and-goal-directed-agency-in-dogs-canis-familiaris-and-human-toddlers-homo-sapiens
#19
Tibor Tauzin, Andor Csík, Kata Lovas, György Gergely, József Topál
Both human infants and nonhuman primates can recognize unfamiliar entities as instrumental agents ascribing to them goals and efficiency of goal-pursuit. This competence relies on movement cues indicating distal sensitivity to the environment and choice of efficient goal-approach. Although dogs' evolved sensitivity to social cues allow them to recognize humans as communicative agents, it remains unclear whether they have also evolved a basic concept of instrumental agency. We used a preferential object-choice procedure to test whether adult pet dogs and human toddlers can identify unfamiliar entities as agents based on different types of movement cues that specify different levels of agency...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28080077/dogs-canis-familiaris-attention-to-human-perception-influence-of-breed-groups-and-life-experiences
#20
Marianne T E Heberlein, Dennis C Turner, Marta B Manser
Attending to the perception of others may help individuals gaining information from conspecifics, or help in competitive situations. Dogs (Canis familiaris) are attentive to humans' signals and their attentional state. We investigated whether dogs of different breed groups differ in their ability to pay attention to human's perception, first according to the genetic relatedness between dog breeds, and second according to working style differences. Once dogs had learned to leave forbidden food on the floor, they were confronted with 2 food items to which only they had unrestricted visual access...
February 2017: Journal of Comparative Psychology
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