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McGrath AP, Horschler DJ, Hancock L. Feline Cognition and the Role of Nutrition: An Evolutionary Perspective and Historical Review. Animals (Basel) 2024; 14:1967. [PMID: 38998079 PMCID: PMC11240355 DOI: 10.3390/ani14131967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/25/2024] [Accepted: 06/30/2024] [Indexed: 07/14/2024] Open
Abstract
Research into cognition in cats and the impact of nutrition on cat cognitive health lags behind that in dogs but is receiving increased attention. In this review, we discuss the evolutionary history of the domesticated cat, describe possible drivers of domestication, and explore the interrelationships between nutrition and cat cognition. While most cat species are solitary, domesticated cats can live in social groups, engage in complex social encounters, and form strong attachments to humans. Researchers have recently started to study cat cognition using similar methods as those developed for dogs, with an initial primary focus on perception and social cognition. Similar to dogs, cats also show cognitive and behavioral changes associated with stress and aging, but these signs are often gradual and often considered a consequence of natural aging. Despite the fundamental role of nutrition in cognitive development, function, and maintenance, research into the association between nutrition and cognition in cats is only preliminary. Ultimately, additional research is needed to gain a full understanding of cat cognition and to explore the role of nutrition in the cognitive health of cats to help improve their welfare.
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Mählis G, Kleine A, Lüschow D, Bartel A, Wiegard M, Thoene-Reineke C. Clicker Training as an Applied Refinement Measure in Chickens. Animals (Basel) 2023; 13:3836. [PMID: 38136873 PMCID: PMC10740453 DOI: 10.3390/ani13243836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
When using chickens in animal studies, the handling of these animals for sample collection or general examinations is considered stressful due to their prey nature. For the study presented here, plasma and salivary corticosterone as well as New Area Test behavior and fecal output were used to evaluate whether it is possible to influence this stress perception using a three-week clicker training program. The results indicate that clicker training seems to be a suitable refinement measure in the sense of cognitive enrichment for the husbandry of this species. However, since it was also shown that three-week training was not sufficient to sustainably reduce the stress perception with regard to prolonged stressor exposure, and since it was also evident that manipulations such as routine blood sampling are perceived as less stressful than assumed, further studies with prolonged training intervals and situations with higher stressor potential are warranted. Also, further parameters for training assessment must be considered. For the general use of training as a supportive measure in animal experiments, its proportionality must be considered, particularly considering the expected stress and adequate training time.
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Affiliation(s)
- Gordon Mählis
- Institute of Animal Welfare, Animal Behavior and Laboratory Animal Science, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 67, 14163 Berlin, Germany; (M.W.); (C.T.-R.)
| | - Anne Kleine
- Division for Poultry, Farm Animal Clinic, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 63, 14163 Berlin, Germany; (A.K.); (D.L.)
| | - Dörte Lüschow
- Division for Poultry, Farm Animal Clinic, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 63, 14163 Berlin, Germany; (A.K.); (D.L.)
| | - Alexander Bartel
- Institute of Veterinary Epidemiology and Biostatistics, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 67, 14163 Berlin, Germany
| | - Mechthild Wiegard
- Institute of Animal Welfare, Animal Behavior and Laboratory Animal Science, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 67, 14163 Berlin, Germany; (M.W.); (C.T.-R.)
| | - Christa Thoene-Reineke
- Institute of Animal Welfare, Animal Behavior and Laboratory Animal Science, School of Veterinary Medicine, Freie Universität Berlin, Königsweg 67, 14163 Berlin, Germany; (M.W.); (C.T.-R.)
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Messina MG, Ziv G, Byosiere SE. A preliminary examination of the contextual interference effect on trained trick retention in domestic dogs. J Exp Anal Behav 2023; 120:36-49. [PMID: 37219081 DOI: 10.1002/jeab.858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
This study sought to enhance current dog training practices by determining whether a finding from human motor skill learning research, the contextual interference (CI) effect, could be replicated in a trick-training paradigm with companion dogs. In humans, research shows that practicing skills in random order, as compared with blocked order, improves learning of those skills. To test this question in dogs, we randomly allocated 17 dogs to blocked training (low CI) or random training (high CI). The dogs performed three behaviors of varying difficulty. After training, we conducted a retention test in which half of the dogs in each group performed the tasks in blocked order and the other half in random order. We scored each trick, measured duration, and measured whether dogs required one or two tries to perform a behavior. We found no significant differences between dogs who practiced three tricks in random or in blocked order during training and during a retention test. This study is the first to apply the CI effect to dog trick training. Although no evidence of the CI effect was found, the current research provides a preliminary framework for future studies with potential implications for increasing retention of trained skills.
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Affiliation(s)
- Maddie G Messina
- Thinking Dog Center, Hunter College, City University of New York, NY, USA
| | - Gal Ziv
- The Academic College at Wingate, Netanya, Israel
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Siniscalchi M, d'Ingeo S, Quaranta A. Effect of Attentional Bias on the 3D Rotated Objects Recognition Ability of Dogs. Animals (Basel) 2023; 13:ani13101673. [PMID: 37238104 DOI: 10.3390/ani13101673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/06/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The ability to recognize rotated objects has been widely reported in the animal kingdom. Studies on animal and human spatial cognition highlighted the importance of visuo-spatial cognitive capability for surviving in a dynamic world. Although domestic animals are frequently involved in activities requiring a high level of visuo-spatial ability, currently, little is known about their visuo-spatial skills. To investigate this issue, we trained six dogs to discriminate between 3D objects (using a modified version of the Shepard-Metzler task) that were then reproduced digitally on a computer. We found that the dogs recognized three-dimensional objects and their rotated versions (45° and 180°) more easily when presented on the left side of the screen, suggesting right hemisphere superiority in the control of visuo-spatial functions. Moreover, we report inter-individual variability in their performance in the visuo-spatial task. Our preliminary results suggest that dogs could use a rotational invariance process for the discrimination of 3D rotated shapes that deserves further investigation.
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Affiliation(s)
- Marcello Siniscalchi
- Animal Physiology and Behaviour Unit, Department of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Serenella d'Ingeo
- Animal Physiology and Behaviour Unit, Department of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, Italy
| | - Angelo Quaranta
- Animal Physiology and Behaviour Unit, Department of Veterinary Medicine, University of Bari Aldo Moro, 70121 Bari, Italy
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Fernandez EJ, Martin AL. Applied behavior analysis and the zoo: Forthman and Ogden (1992) thirty years later. J Appl Behav Anal 2023; 56:29-54. [PMID: 36562615 PMCID: PMC10107353 DOI: 10.1002/jaba.969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/27/2022] [Indexed: 12/24/2022]
Abstract
The field of applied behavior analysis has been directly involved in both research and applications of behavioral principles to improve the lives of captive zoo animals. Thirty years ago, Forthman and Ogden (1992) wrote one of the first papers documenting some of these efforts. Since that time, considerable work has been done using behavioral principles and procedures to guide zoo welfare efforts. The current paper reexamines and updates Forthman and Ogden's original points, with attention to the 5 categories they detailed: (a) promotion of species-typical behavior, (b) reintroduction and repatriation of endangered species, (c) animal handling, (d) pest control, and (e) animal performances. In addition, we outline 3 current and future directions for behavior analytic endeavors: (a) experimental analyses of behavior and the zoo, (b) applied behavior analysis and the zoo, and (c) single-case designs and the zoo. The goal is to provide a framework that can guide future behavioral research in zoos, as well as create applications based on these empirical evaluations.
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Peiris PL, Rosales‐Ruiz J. Some detrimental effects of conditioned reinforcement on the maintenance of dog behavior. J Exp Anal Behav 2022; 118:337-348. [DOI: 10.1002/jeab.790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 11/12/2022]
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Kurland A, St Peter CC. Connecting animal trainers and behavior analysts through loopy training. J Exp Anal Behav 2022; 118:237-249. [PMID: 35698922 DOI: 10.1002/jeab.779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/04/2022] [Accepted: 06/01/2022] [Indexed: 11/08/2022]
Abstract
The communities of behavior analysts and animal trainers remain relatively disconnected, despite potentially beneficial links between behavioral principles and the practices of animal training. Describing existing links between research by behavior analysts and practices used by animal trainers may foster connections. In this paper, we describe an approach used by many clicker trainers, referred to as loopy training. Loopy training is a teaching process built around the concept of movement cycles. Interactions between the animal learner and the handler are refined into predictable, cyclical patterns that can be expanded into complex sequences. These sequences include cues, target responses, conditioned reinforcers, and consummatory responses. We link the foundations of loopy training to existing work in the experimental analysis of behavior, compare loopy training to other shaping approaches, and describe areas for future research. We conclude with a series of recommendations for further developing connections between behavior analysts and animal trainers, using loopy training as the foundation for our suggestions.
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Gibsone S, McBride EA, Redhead ES, Cameron KE, Bizo LA. The effectiveness of visual and auditory elements of a compound stimulus in controlling behavior in the domestic dog (Canis familiaris). J Vet Behav 2021. [DOI: 10.1016/j.jveb.2021.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Arnesen CH, Rosell F. Pest detection dogs for wood boring longhorn beetles. Sci Rep 2021; 11:16887. [PMID: 34413443 PMCID: PMC8376989 DOI: 10.1038/s41598-021-96450-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Invasive alien species are increasing due to globalization. Their spread has resulted in global economic losses. Asian [Anoplophora glabripennis (Motschulsky)] (ALB) and citrus [A. chinensis (Forster)] (CLB) longhorn beetles are two introduced wood borers which contribute to these economic losses e.g. the destruction of tree plantations. Early detection is key to reduce the ecological influence alongside the detrimental and expensive eradication. Dogs (Canis lupus familiaris) can detect these insects, potentially at an early stage. We trained two privately owned dogs to investigate their use as detection tools. We tested the dog's ability to discriminate ALB and CLB from native wood borers by carrying out double-blind and randomized experiments in three search conditions; (1) laboratory, (2) semi-field and (3) standardized field. For condition one, a mean sensitivity of 80%, specificity of 95% and accuracy of 92% were achieved. For condition two and three, a mean sensitivity of 88% and 95%, specificity of 94% and 92% and accuracy of 92% and 93% were achieved. We conclude that dogs can detect all types of traces and remains of ALB and CLB and discriminate them from native wood borers and uninfested wood, but further tests on live insects should be initiated.
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Affiliation(s)
- Charlotte Holmstad Arnesen
- grid.463530.70000 0004 7417 509XFaculty of Technology, Natural Sciences and Maritime Sciences, Department of Natural Sciences and Environmental Health, University of South-Eastern Norway, 3800 Bø, Telemark Norway
| | - Frank Rosell
- grid.463530.70000 0004 7417 509XFaculty of Technology, Natural Sciences and Maritime Sciences, Department of Natural Sciences and Environmental Health, University of South-Eastern Norway, 3800 Bø, Telemark Norway
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Hall NJ, Johnston AM, Bray EE, Otto CM, MacLean EL, Udell MAR. Working Dog Training for the Twenty-First Century. Front Vet Sci 2021; 8:646022. [PMID: 34386536 PMCID: PMC8353195 DOI: 10.3389/fvets.2021.646022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 06/28/2021] [Indexed: 01/24/2023] Open
Abstract
Dogs are trained for a variety of working roles including assistance, protection, and detection work. Many canine working roles, in their modern iterations, were developed at the turn of the 20th century and training practices have since largely been passed down from trainer to trainer. In parallel, research in psychology has advanced our understanding of animal behavior, and specifically canine learning and cognition, over the last 20 years; however, this field has had little focus or practical impact on working dog training. The aims of this narrative review are to (1) orient the reader to key advances in animal behavior that we view as having important implications for working dog training, (2) highlight where such information is already implemented, and (3) indicate areas for future collaborative research bridging the gap between research and practice. Through a selective review of research on canine learning and behavior and training of working dogs, we hope to combine advances from scientists and practitioners to lead to better, more targeted, and functional research for working dogs.
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Affiliation(s)
- Nathaniel J. Hall
- Canine Olfaction Lab, Department of Animal and Food Science, Texas Tech University, Lubbock, TX, United States
| | - Angie M. Johnston
- Boston College Canine Cognition Center, Psychology and Neuroscience Department, Boston College, Chapel Hill, MA, United States
| | - Emily E. Bray
- Arizona Canine Cognition Center, School of Anthropology, University of Arizona, Tucson, AZ, United States
- Canine Companions for Independence, National Headquarters, Santa Rosa, CA, United States
| | - Cynthia M. Otto
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, Penn Vet Working Dog Center, University of Pennsylvania, Philadelphia, PA, United States
| | - Evan L. MacLean
- Arizona Canine Cognition Center, School of Anthropology, University of Arizona, Tucson, AZ, United States
- Cognitive Science Program, University of Arizona, Tucson, AZ, United States
- Department of Psychology, University of Arizona, Tucson, AZ, United States
- College of Veterinary Medicine, University of Arizona, Tucson, AZ, United States
| | - Monique A. R. Udell
- Human-Animal Interaction Lab, Department of Animal & Rangeland Sciences, Oregon State University, Corvallis, OR, United States
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11
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Berger I, Grinstein D, Eshed Y, Shneor D, Terkel J. Variation-set structure: Extraction of important segments in pigeon learning. Behav Processes 2021; 189:104420. [PMID: 33991590 DOI: 10.1016/j.beproc.2021.104420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 11/30/2022]
Abstract
The ability to extract reliable segments from the sensory data-stream is necessary for learning and for creating a reliable representation of the environment. Here we focused on segmentation in visual learning associated with foraging. Fifty-one pigeons (Columba livia) were trained to recognize two food-predicting signals, one presented against fixed background elements and the other against varying backgrounds. The pigeons were divided into two groups: 32 pigeons were trained with short intervals of 3-5 min between sessions and 19 with long intervals of 60 min between sessions. When tested on the signal with a plain background, 24 pigeons trained with the short time intervals preferred the signal presented against a varying background during training and eight preferred the signal presented against a fixed background during training. Nine pigeons trained with the long intervals preferred the signal presented against a varying background during training and ten the signal presented against a fixed background during training. Our findings indicate that pigeons possess an ability to use variation-set structure to segment visual data. To date, the effect of variation-set structure has been demonstrated only in the context of human language acquisition. Our current findings suggest that variation sets structure may be linked to other learning abilities too.
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Affiliation(s)
- Itay Berger
- School of Zoology, Faculty of Life Sciences, Tel-Aviv University, Israel.
| | - Dan Grinstein
- School of Zoology, Faculty of Life Sciences, Tel-Aviv University, Israel
| | - Yuval Eshed
- School of Zoology, Faculty of Life Sciences, Tel-Aviv University, Israel
| | - Dan Shneor
- School of Zoology, Faculty of Life Sciences, Tel-Aviv University, Israel
| | - Joseph Terkel
- School of Zoology, Faculty of Life Sciences, Tel-Aviv University, Israel
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12
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Gilchrist RJ, Gunter LM, Anderson SF, Wynne CDL. The click is not the trick: the efficacy of clickers and other reinforcement methods in training naïve dogs to perform new tasks. PeerJ 2021; 9:e10881. [PMID: 33665026 PMCID: PMC7906040 DOI: 10.7717/peerj.10881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 01/11/2021] [Indexed: 12/02/2022] Open
Abstract
Background A handheld metal noisemaker known as a “clicker” is widely used to train new behaviors in dogs; however, evidence for their superior efficacy compared to providing solely primary reinforcement or other secondary reinforcers in the acquisition of novel behavior in dogs is largely anecdotal. Methods Three experiments were conducted to determine under what circumstances a clicker secondary reinforcer may result in acquisition of a novel behavior more rapidly or to a higher level compared to other readily available reinforcement methods. In Experiment 1, three groups of 30 dogs each were shaped to emit a novel sit and stay behavior of increasing duration with either the delivery of food alone, a verbal stimulus paired with food, or a clicker with food. The group that received only a primary reinforcer reached a significantly higher criterion of training success than the group trained with a verbal secondary reinforcer. Performance of the group experiencing a clicker as a secondary reinforcer was intermediate between the other two groups, but not significantly different from either. In Experiment 2, three groups of 25 dogs each were shaped to emit a nose targeting behavior and then perform that behavior at increasing distances from the experimenter using the same three methods of positive reinforcement as in Experiment 1. No statistically significant differences between the groups were found. In Experiment 3, three groups of 30 dogs each were shaped to emit a nose-targeting behavior upon an array of wooden blocks with task difficulty increasing throughout testing using the same three methods of positive reinforcement as previously tested. No statistically significant differences between the groups were found. Results Overall, the findings suggest that both primary reinforcement alone as well as a verbal or clicker secondary reinforcer can be used successfully in training a dog to perform a novel behavior, but that no positive reinforcement method demonstrated significantly greater efficacy than any other.
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Affiliation(s)
| | - Lisa M Gunter
- Department of Psychology, Arizona State University, Tempe, AZ, USA
| | | | - Clive D L Wynne
- Department of Psychology, Arizona State University, Tempe, AZ, USA
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Vieira de Castro AC, Araújo Â, Fonseca A, Olsson IAS. Improving dog training methods: Efficacy and efficiency of reward and mixed training methods. PLoS One 2021; 16:e0247321. [PMID: 33606822 PMCID: PMC7895348 DOI: 10.1371/journal.pone.0247321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 02/04/2021] [Indexed: 11/19/2022] Open
Abstract
Dogs play an important role in our society as companions and work partners, and proper training of these dogs is pivotal. For companion dogs, training helps preventing or managing dog behavioral problems—the most frequently cited reason for relinquishing and euthanasia, and it promotes successful dog-human relationships and thus maximizes benefits humans derive from bonding with dogs. For working dogs, training is crucial for them to successfully accomplish their jobs. Dog training methods range widely from those using predominantly aversive stimuli (aversive methods), to those combining aversive and rewarding stimuli (mixed methods) and those focusing on the use of rewards (reward methods). The use of aversive stimuli in training is highly controversial and several veterinary and animal protection organizations have recommended a ban on pinch collars, e-collars and other techniques that induce fear or pain in dogs, on the grounds that such methods compromise dog welfare. At the same time, training methods based on the use of rewards are claimed to be more humane and equally or more effective than aversive or mixed methods. This important discussion, however, has not always been based in solid scientific evidence. Although there is growing scientific evidence that training with aversive stimuli has a negative impact on dog welfare, the scientific literature on the efficacy and efficiency of the different methodologies is scarce and inconsistent. Hence, the goal of the current study is to investigate the efficacy and efficiency of different dog training methods. To that end, we will apply different dog training methods in a population of working dogs and evaluate the outcome after a period of training. The use of working dogs will allow for a rigorous experimental design and control, with randomization of treatments. Military (n = 10) and police (n = 20) dogs will be pseudo-randomly allocated to two groups. One group will be trained to perform a set of tasks (food refusal, interrupted recall, dumbbell retrieval and placing items in a basket) using reward methods and the other group will be trained for the same tasks using mixed methods. Later, the dogs will perform a standardized test where they will be required to perform the trained behaviors. The reliability of the behaviors and the time taken to learn them will be assessed in order to evaluate the efficacy and efficiency, respectively, of the different training methods. This study will be performed in collaboration with the Portuguese Army and with the Portuguese Public Security Police (PSP) and integrated with their dog training programs.
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Affiliation(s)
- Ana Catarina Vieira de Castro
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- i3S –Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- * E-mail:
| | | | - André Fonseca
- CINAMIL, The Military Academy Research Center of the Portuguese Army, Lisbon, Portugal
| | - I. Anna S. Olsson
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- i3S –Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
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Kieson E, Felix C, Webb S, Abramson CI. The effects of a choice test between food rewards and human interaction in a herd of domestic horses of varying breeds and experiences. Appl Anim Behav Sci 2020. [DOI: 10.1016/j.applanim.2020.105075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Pfaller-Sadovsky N, Hurtado-Parrado C, Cardillo D, Medina LG, Friedman SG. What's in a Click? The Efficacy of Conditioned Reinforcement in Applied Animal Training: A Systematic Review and Meta-Analysis. Animals (Basel) 2020; 10:ani10101757. [PMID: 32998242 PMCID: PMC7600771 DOI: 10.3390/ani10101757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/19/2023] Open
Abstract
Simple Summary Conditioned reinforcement, for example, clicker training, has become increasingly popular in recent decades. Hence, questions about the effectiveness of the conditioned reinforcer have become prominent in the animal training arena. This article summarizes the scientific literature on conditioned reinforcement in applied animal training settings (e.g., homes). It was found that dogs and horses were the most frequently studied animals. Clickers and food were the most often used training stimuli. Effect size analysis found a medium effect of clicker training. The literature reviewed here shows that conditioned reinforcement is an effective approach to change animal behavior; however, sizable information potentially related to its effectiveness was not clearly reported in the studies (e.g., food preferences). Although this review fills in a gap in the literature, it also points to the need for more research to further the understanding of conditioned reinforcement phenomena. Abstract A conditioned reinforcer is a stimulus that acquired its effectiveness to increase and maintain a target behavior on the basis of the individual’s history—e.g., pairings with other reinforcers. This systematic review synthesized findings on conditioned reinforcement in the applied animal training field. Thirty-four studies were included in the review and six studies were eligible for a meta-analysis on the effectiveness of behavioral interventions that implemented conditioned reinforcement (e.g., clicks, spoken word, or whistles paired with food). The majority of studies investigated conditioned reinforcement with dogs (47%, n = 16) and horses (30%, n = 10) implementing click–food pairings. All other species (cats, cattle, fish, goats, and monkeys) were equally distributed across types of conditioned (e.g., clicker or spoken word) and unconditioned reinforcers (e.g., food, water, or tactile). A meta-analysis on the effectiveness of conditioned reinforcement in behavioral interventions found a medium summary effect size (Tau-U 0.77; CI95% = [0.53, 0.89]), when comparing baseline, where no training was done, and treatment levels. Moderators of conditioned reinforcement effectiveness were species (e.g., horses) and research design (e.g., multiple-baseline designs). The small number of intervention-focused studies available limits the present findings and highlights the need for more systematic research into the effectiveness of conditioned reinforcement across species.
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Affiliation(s)
- Nicole Pfaller-Sadovsky
- School of Biological Sciences, Queen’s University Belfast, Belfast BT95AJ, UK
- Correspondence: ; Tel.: +43-664-4226-538
| | - Camilo Hurtado-Parrado
- Department of Psychology, Troy University, Troy, AL 36082, USA;
- Faculty of Psychology, Fundación Universitaria Konrad Lorenz, Bogota 110221, Colombia;
| | | | - Lucia G. Medina
- Faculty of Psychology, Fundación Universitaria Konrad Lorenz, Bogota 110221, Colombia;
| | - Susan G. Friedman
- Department of Psychology, Utah State University, Logan, UT 84322, USA;
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Cimarelli G, Schoesswender J, Vitiello R, Huber L, Virányi Z. Partial rewarding during clicker training does not improve naïve dogs' learning speed and induces a pessimistic-like affective state. Anim Cogn 2020; 24:107-119. [PMID: 32897444 PMCID: PMC7829239 DOI: 10.1007/s10071-020-01425-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 11/30/2022]
Abstract
Clicker training is considered a welfare-friendly way of teaching novel behaviors to animals because it is mostly based on the positive reinforcement. However, trainers largely vary in their way of applying this training technique. According to the most, a reward (e.g., food) should follow every click, while others claim that dogs learn faster when the reward is sometimes omitted. One argument against the use of partial rewarding is that it induces frustration in the animal, raising concerns over its welfare consequences. Here, we investigated the effect of partial rewarding not only on training efficacy (learning speed), but also on dogs' affective state. We clicker-trained two groups of dogs: one group received food after every click while the other group received food only 60% of the time. Considering previous evidence of the influencing role of personality on reactions to frustrated expectations, we included measurements of dogs' emotional reactivity. We compared the number of trials needed to reach a learning criterion and their pessimistic bias in a cognitive bias test. No difference between the two groups emerged in terms of learning speed; however, dogs that were partially rewarded during clicker training showed a more pessimistic bias than dogs that were continuously rewarded. Generally, emotional reactivity was positively associated with a more pessimistic bias. Partial rewarding does not improve training efficacy, but it is associated with a negatively valenced affective state, bringing support to the hypothesis that partial rewarding might negatively affect dogs' welfare.
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Affiliation(s)
- Giulia Cimarelli
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, Vienna, 1210, Austria. .,Domestication Lab, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210, Vienna, Austria.
| | - Julia Schoesswender
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, Vienna, 1210, Austria
| | - Roberta Vitiello
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, Vienna, 1210, Austria.,R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, Scotland.,Scotland's Rural University College (SRUC), Easter Bush, Midlothian, EH25 9RG, Scotland.,UMR PRC, INRA, CNRS, IFCE, Université de Tours, 37380, Nouzilly, France
| | - Ludwig Huber
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, Vienna, 1210, Austria
| | - Zsófia Virányi
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, Vienna, 1210, Austria
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17
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Clicker training does not enhance learning in mixed-breed shelter puppies (Canis familiaris). J Vet Behav 2020. [DOI: 10.1016/j.jveb.2020.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Clicker Training Accelerates Learning of Complex Behaviors but Reduces Discriminative Abilities of Yucatan Miniature Pigs. Animals (Basel) 2020; 10:ani10060959. [PMID: 32486472 PMCID: PMC7341331 DOI: 10.3390/ani10060959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Animal training is intended to teach specific behavioral responses to specific requests. Clicker Training (CT) is a method to train animals based on the use of a device that emits a sound to be associated as a marker that predicts the delivery of something wanted (food). It is believed that CT decreases training time compared to other types of training that use different markers, such as voice. Herein, we used two-month-old miniature piglets to assess whether CT decreased the number of repeats required to learn complex behaviors compared to voice-trained animals. Furthermore, we compared the number of correct choices of animals from both groups when tested for the discrimination of objects. The results indicated that CT decreased the number of repetitions required to learn to fetch an object but reduced the animals’ ability to make correct decisions during discriminatory trials compared to voice-trained animals. This suggests that CT is more efficient than voice in teaching complex behaviors but reduces the ability of animals to use the cognitive processes necessary to discriminate and select objects associated with reward. Animal trainers might consider our results to decide which marker is to be implemented based on the aim and purpose of the training. Abstract Animal training is meant to teach specific behavioral responses to specific cues. Clicker training (CT) is a popular training method based on the use of a device that emits a sound of double-click to be associated as a first-order conditioned stimulus in contingency with positive reinforcements. After some repetitions, the clicker sound gains some incentive value and can be paired with the desired behavior. Animal trainers believed that CT can decrease training time compared to other types of training. Herein, we used two-month old miniature piglets to evaluate whether CT decreased the number of repetitions required to learn complex behaviors as compared with animals trained with voice instead of the clicker. In addition, we compared the number of correct choices of animals from both groups when exposed to object discriminative tests. Results indicated that CT decreased the number of repetitions required for pigs to learn to fetch an object but reduced the ability of animals to make correct choices during the discriminate trials. This suggests that CT is more efficient than voice to teach complex behaviors but reduces the ability of animals to use cognitive processes required to discriminate and select objects associated with reward.
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19
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Abstract
In recent years, two well-developed methods of studying mental processes in humans have been successively applied to dogs. First, eye-tracking has been used to study visual cognition without distraction in unrestrained dogs. Second, noninvasive functional magnetic resonance imaging (fMRI) has been used for assessing the brain functions of dogs in vivo. Both methods, however, require dogs to sit, stand, or lie motionless while yet remaining attentive for several minutes, during which time their brain activity and eye movements are measured. Whereas eye-tracking in dogs is performed in a quiet and, apart from the experimental stimuli, nonstimulating and highly controlled environment, MRI scanning can only be performed in a very noisy and spatially restraining MRI scanner, in which dogs need to feel relaxed and stay motionless in order to study their brain and cognition with high precision. Here we describe in detail a training regime that is perfectly suited to train dogs in the required skills, with a high success probability and while keeping to the highest ethical standards of animal welfare-that is, without using aversive training methods or any other compromises to the dog's well-being for both methods. By reporting data from 41 dogs that successfully participated in eye-tracking training and 24 dogs IN fMRI training, we provide robust qualitative and quantitative evidence for the quality and efficiency of our training methods. By documenting and validating our training approach here, we aim to inspire others to use our methods to apply eye-tracking or fMRI for their investigations of canine behavior and cognition.
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Affiliation(s)
- Sabrina Karl
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria.
| | - Magdalena Boch
- Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria
- Department of Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Zsófia Virányi
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
| | - Claus Lamm
- Social, Cognitive and Affective Neuroscience Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Ludwig Huber
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
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20
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Arnesen CH, Johnsen CB, Costanzi JM, Rosell F. Canines (Canis lupus familiaris) as biodetectors for conservation work: Can they discriminate the rock ptarmigan (Lagopus muta) from the willow grouse (L. lagopus) in a yes/no task? PLoS One 2020; 15:e0228143. [PMID: 31990940 PMCID: PMC6986717 DOI: 10.1371/journal.pone.0228143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 01/08/2020] [Indexed: 11/19/2022] Open
Abstract
Alpine and arctic bird populations have shown an unmistakable decrease over the last three decades, and the need for conservation is highly necessary. We investigated the use of five privately-owned dogs (Canis lupus familiaris) as a non-invasive tool to determine the presence of rock ptarmigan (Lagopus muta), through sniffing out faecal pellets, using a yes/no training regime. We carried out 36 double-blind experimental trials per dog and hypothesised that dogs could discriminate the rock ptarmigan from similar species, such as black grouse (Tetrao tetrix), western capercaillie (T. urogallus) and willow grouse (L. lagopus). Our dogs detected differences between the avian species with an average accuracy of 65.9%, sensitivity of 66.7% and specificity of 65.3%. We showed that privately-owned dogs have the potential to be used as biodetectors for conservational work within controlled laboratory conditions for declining species, but overall, only one dog was considered proficient enough. We concluded that dogs could be used as a non-invasive tool to detect the rock ptarmigan, and with further field training and testing, operate in the field for detection surveys.
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Affiliation(s)
- Charlotte Holmstad Arnesen
- Faculty of Technology, Natural Science and Environmental Health, University of South-Eastern Norway, Bø i Telemark, Norway
| | - Christin Beate Johnsen
- Faculty of Technology, Natural Science and Environmental Health, University of South-Eastern Norway, Bø i Telemark, Norway
| | - Jean-Marc Costanzi
- Faculty of Technology, Natural Science and Environmental Health, University of South-Eastern Norway, Bø i Telemark, Norway
| | - Frank Rosell
- Faculty of Technology, Natural Science and Environmental Health, University of South-Eastern Norway, Bø i Telemark, Norway
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21
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McDonald CI, Zaki S. A role for classical music in veterinary practice: does exposure to classical music reduce stress in hospitalised dogs? Aust Vet J 2020; 98:31-36. [DOI: 10.1111/avj.12905] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/21/2019] [Accepted: 11/29/2019] [Indexed: 11/27/2022]
Affiliation(s)
- CI McDonald
- Sydney School of Veterinary Science, Faculty of ScienceThe University of Sydney Camperdown New South Wales 2006 Australia
| | - S Zaki
- Sydney School of Veterinary Science, Faculty of ScienceThe University of Sydney Camperdown New South Wales 2006 Australia
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22
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Broche N, Takeshita RSC, Mouri K, Bercovitch FB, Huffman MA. Salivary alpha-amylase enzyme is a non-invasive biomarker of acute stress in Japanese macaques (Macaca fuscata). Primates 2019; 60:547-558. [PMID: 31541328 DOI: 10.1007/s10329-019-00757-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023]
Abstract
Salivary alpha-amylase (sAA) enzyme functions as a digestive enzyme in many species that consume starch in their diet. Human studies have also revealed that sAA enzyme activity levels are positively correlated with the release of the stress hormone norepinephrine, allowing sAA to act as a biomarker for sympathetic nervous system activity. Recent non-human primate studies have incorporated sAA as a physiological stress marker. However, no published reports have investigated the time course of sAA from a stressful event to return to baseline levels in non-human primates. Furthermore, no validation of sAA as a stress biomarker has been reported for Japanese macaques (Macaca fuscata). This study had two primary aims: (1) to develop a systematic method for non-invasive saliva collection and, (2) to investigate sAA as a biomarker of acute stress in M. fuscata in order to better understand its acute stress-related characteristics. We developed a non-invasive method for cooperative saliva collection using positive reinforcement training (PRT) and tracked individual progress over 595 trials in ten individually housed Japanese macaques. We detected sAA enzyme in M. fuscata via kinetic reaction assay, then performed 22 acute stress tests. Four tests met conditions for interpreting sAA in response to an acute stressor and these results show that on average sAA activity rapidly increased post-stressor (mean ± SD = 4.2 ± 0.9 min) and returned to baseline shortly thereafter (10.4 ± 0.6 min). Our report reveals for the first time the temporal dynamics of sAA when applying acute stress to Japanese macaques and could be a useful tool for assessing animal welfare.
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Affiliation(s)
- Nelson Broche
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan.
| | - Rafaela S C Takeshita
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
- Universidade Federal Rural da Amazônia, Belém, Pará, Brazil
- Department of Anthropology, Kent State University, Kent, OH, USA
| | - Keiko Mouri
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - Fred B Bercovitch
- Wildlife Research Center, Kyoto University, Kyoto, Japan
- Save The Giraffes, San Antonio, TX, USA
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Dorey NR, Cox DJ. Function matters: a review of terminological differences in applied and basic clicker training research. PeerJ 2018; 6:e5621. [PMID: 30258718 PMCID: PMC6151118 DOI: 10.7717/peerj.5621] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/21/2018] [Indexed: 11/20/2022] Open
Abstract
In clicker training, animal trainers pair a small device (a “clicker”) with a reward when teaching or maintaining responding. Animal trainers often assume clicker training is a “science-based” way to train animals. But, the few studies that have compared clicker training to a control have not provided evidence that adding a clicker is beneficial to training. This may be because research on clicker training has studied only one of several potential functions of the clicker stimulus that have been discussed by animal trainers. A systematic approach to researching the function of the clicker in clicker training would benefit from collaboration between applied and basic researchers. However, this will require that terminological differences between animal trainers and basic researchers are reconciled. This paper reviews the few studies that have compared clicker training to a control group and then discusses how trainers and basic researchers use the same terminology in functionally different ways—suggesting the empirical support for mechanisms underlying clicker training is less robust than previously assumed. These differences highlight many opportunities to answer basic and applied research questions relative to clicker training methods. Advancements in clicker training methods will benefit animal trainers who have been using clicker training for decades as well as applied practitioners who have extended clicker training to humans in educational and clinical settings.
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Affiliation(s)
- Nicole R Dorey
- Department of Psychology, University of Florida, Gainesville, FL, United States of America
| | - David J Cox
- Department of Psychology, University of Florida, Gainesville, FL, United States of America
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24
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Animals Make Music: A Look at Non-Human Musical Expression. MULTIMODAL TECHNOLOGIES AND INTERACTION 2018. [DOI: 10.3390/mti2030051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The use of musical instruments and interfaces that involve animals in the interaction process is an emerging, yet not widespread practice. The projects that have been implemented in this unusual field are raising questions concerning ethical principles, animal-centered design processes, and the possible benefits and risks for the animals involved. Animal–Computer Interaction is a novel field of research that offers a framework (ACI manifesto) for implementing interactive technology for animals. Based on this framework, we have examined several projects focusing on the interplay between animals and music technology in order to arrive at a better understanding of animal-based musical projects. Building on this, we will discuss how the implementation of new musical instruments and interfaces could provide new opportunities for improving the quality of life for grey parrots living in captivity.
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25
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Feng LC, Hodgens NH, Woodhead JK, Howell TJ, Bennett PC. Is clicker training (Clicker + food) better than food-only training for novice companion dogs and their owners? Appl Anim Behav Sci 2018. [DOI: 10.1016/j.applanim.2018.04.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Strickler BG. Helping Pet Owners Change Pet Behaviors: An Overview of the Science. Vet Clin North Am Small Anim Pract 2018; 48:419-431. [PMID: 29397240 DOI: 10.1016/j.cvsm.2017.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The predominant approach to training dogs and modifying their behavior has been steeped in antiquated theories of dominance and pack leadership that are not based in scientific evidence. Animals learn best through associative and consequential interactions. Using the most current evidence-based techniques, while acknowledging that each pet is an individual, results in more effective behavior modification.
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27
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Feng LC, Howell TJ, Bennett PC. Practices and perceptions of clicker use in dog training: A survey-based investigation of dog owners and industry professionals. J Vet Behav 2018. [DOI: 10.1016/j.jveb.2017.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Duranton C, Jeannin S, Bedossa T, Gaunet F. [Studying episodic memory : dogs as a biological model ?]. Med Sci (Paris) 2017; 33:1089-1095. [PMID: 29261497 DOI: 10.1051/medsci/20173312016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The ability to remember past events in all of their dimensions (what? where? when? i.e. autobiographic/episodic memory) is highly adaptive. Conversely, individuals who do not have such ability are less likely to benefit from recognizing situations similar to previous ones, e.g. to avoid being defeated several times. We will present the different types of memory and their ontogeny, focusing on those that are found in dogs. We will then describe more precisely the episodic memory, i.e. remembering events or actions from others, and their location and the time of the events and will present to which degree such a skill is found in dogs. We will show that, even if dogs are a social species whose specificities should reveal the existence of an episodic-like memory, dogs remember who and what happened but no study evidenced yet that they remember the precise time it was done. Further studies are thus needed, especially as dogs represent a relevant biological model for comparative cognition to study the ontogeny or senescence of non verbal episodic memory.
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Affiliation(s)
- Charlotte Duranton
- Laboratoire de psychologie cognitive, université Aix-Marseille, CNRS, UMR7290, Fédération 3C, 3, place Victor Hugo, CS 80249, Bâtiment 9, Case D, 13331 Marseille Cedex 03, France
| | - Sarah Jeannin
- Laboratoire éthologie, cognition et développement, université Paris Nanterre, Bâtiment BSL, 200, avenue de la République, 92000 Nanterre, France
| | - Thierry Bedossa
- École nationale vétérinaire d'Alfort, 7, avenue du Général de Gaulle, 94704 Maisons-Alfort, France
| | - Florence Gaunet
- Laboratoire de psychologie cognitive, université Aix-Marseille, CNRS, UMR7290, Fédération 3C, 3, place Victor Hugo, CS 80249, Bâtiment 9, Case D, 13331 Marseille Cedex 03, France
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