Short and long-term temporal consistency of hand preference in sanctuary chimpanzees (Pan troglodytes) for unimanual and bimanual coordinated tasks

Padrell, Maria; Martínez, Carlos Gómez; Llorente, Miquel

doi:10.1016/j.beproc.2019.103911

Cited by 6 publications

(3 citation statements)

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“…Lett. 16: 20200033 range-country sanctuaries, are those focused on handedness and laterality [177,[182][183][184][185][186][187][188][189][190][191][192], in part because of methodology that can be as simple as providing small PVC tubes from which the apes pick out sticky foods with their finger. On the opposite end of the technology spectrum, the utilization of infrared eye-tracking devices continues to grow.…”

Section: (B) Cognitionmentioning

confidence: 99%

A review of research in primate sanctuaries

Ross

Leinwand

2020

Biol. Lett.

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While non-human primate studies have long been conducted in laboratories, and more recently at zoological parks, sanctuaries are increasingly considered a viable setting for research. Accredited sanctuaries in non-range countries house thousands of primates formerly used as subjects of medical research, trained performers or personal pets. In range countries, however, sanctuaries typically house orphaned primates confiscated from illegal poaching and the bushmeat and pet trafficking trades. Although the primary mission of these sanctuaries is to rescue and rehabilitate residents, many of these organizations are increasingly willing to participate in non-invasive research. Notably, from a scientific standpoint, most sanctuaries provide potential advantages over traditional settings, such as large, naturalistic physical and social environments which may result in more relevant models of primates' free-ranging wild counterparts than other captive settings. As a result, an impressive scope of research in the fields of primate behaviour, cognition, veterinary science, genetics and physiology have been studied in sanctuaries. In this review, we examine the range and form of research that has been conducted at accredited sanctuaries around the world. We also describe the potential challenges of sanctuary-based work and the considerations that external researchers may face when deciding to collaborate with primate sanctuaries on their research projects.

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Section: (B) Cognitionmentioning

confidence: 99%

A review of research in primate sanctuaries

Ross

Leinwand

2020

Biol. Lett.

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“…Zhao et al, 2012). Also, Padrell et al (2019) explored this trait in chimpanzees, finding it to be stable and rising over time. All that being said, the aforementioned research has also displayed several intraspecies and interspecies inconsistencies.…”

Section: Introductionmentioning

confidence: 99%

Hand preferences in coordinated bimanual tasks in non-human primates: a systematic review and meta-analysis

Llorente¹,

Soto²,

Martínez-Gázquez³

2022

Preprint

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The evolutionary significance of hand preferences among non-human primates and humans has been studied for decades with the aim of determining the origins of the population-level tendency. In this study, a meta-analysis was conducted to statistically integrate data on hand preferences in non-human primates performing the tube task and other bimanual tasks to determine the presence and direction of manual laterality. Significant individual-level lateralization was obtained for these bimanual tasks. In non-human primates, 81% of the animals analysed showed right or left-hand preference performing the tube task, this figure being 88% for other bimanual tasks. No asymmetry was found at the population level, unlike in humans. Additionally, no preference in direction was found in either of the tasks, although a strong manual preference was found performing the tube task and other bimanual tasks. Species was studied as a variable moderator throughout the meta-analysis. These results emphasize the importance of standardized testing methodologies across species and institutions to obtain comparable data and fill the gaps in the taxonomy.

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“…The session began when the subject took the tube and performed a first food extraction. A session was considered valid if the individual completed at least six events of food extraction, and the session concluded when the subject finished the food or lost interest in the task for more than one minute, in line with previous studies (Llorente et al, 2011;Padrell et al, 2019). If the experimental subject did not perform a minimum of six events the session were discarded.…”

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confidence: 99%