著者

渡邊 正孝

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.61, no.2, pp.131-139, 2011 (Released:2011-12-19)

参考文献数

20

被引用文献数

1

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Recent human neuroimaging studies indicate that by using fMRI we can “see” what people are thinking. In animals, we can more accurately see what the animal has in mind by using invasive methods that cannot be used in human subjects. Here I introduce experimental studies where single neuronal activities were examined in the monkey prefrontal cortex in relation to working memory and reward expectancy. We found that by monitoring the neuronal activity while the animal is waiting for the next event, we can see what the monkey is retaining or expecting in mind. Human neuroimaging studies have well documented “default mode of brain activity”, which is higher activity during the resting state than during cognitively demanding task, and is concerned with internal thought processes, in the medial prefrontal and medial parietal areas. In our PET study, we also found higher activity during rest in these medial cortical areas of the monkey. The result suggests that there are primitive-level internal thought processes in the monkey.

著者

村山 未来 永澤 美保 片山 真希 池田 和司 久保 孝富 山川 俊貴 藤原 幸一 菊水 健史

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.70, no.1, pp.15-18, 2020

被引用文献数

1

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<p>Heart rate variability (HRV) is a physical and noninvasive index of the autonomic nervous system and has been used in a wide range of fields such as human medicine, veterinary and animal behavior. Measuring devices have been improved miniaturization and light-weighting and they make it possible to measure a dog's electrocardiogram (ECG) under a free moving condition. HRV has been known as an index not only of physical activity but also to evaluate an animal's emotional status. One concern is a difficulty in dissociating physical activity and emotional status in HRV parameters. In this study, we examined how the physical activity component and the emotional component affect in HRV. We measured HRV and acceleration of the dogs under two conditions, the physical activity (motion) condition and the reward condition where food treats were emotional stimuli and under the motion condition. As a result, a dog's HRV values were linearly regressed on the acceleration data. SDNN (Standard Deviation of NN intervals) affected by the composite acceleration in reward condition while rMSSD (root Mean Square of Successive Differences) affected in motion condition. These suggested that the physical activity and HRV indices distribute on regression lines and emotional stimuli influences each HRV indices differently.</p>

著者

山田 弘司

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.62, no.1, pp.41-47, 2012 (Released:2012-07-27)

参考文献数

13

被引用文献数

1

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This study surveys dairy farmers' ways of raising, sense of animal welfare, and emotional impressions on their cows, and discusses their personification to livestock in contrast with that to companion animals. The farmers have professional knowledge and skills to feed and handle the cows. They get a living from keeping cows, considering the cost and benefit. This economy-based view sometimes leads to the desertion of treatment on disordered livestock. Companion animal owners usually keep their animals with no such economy-based but emotion-based view. Farmers' “employer-employee” relationship to their cows would interfere with the personification attitudes. This author compared the attitudes of 187 dairy farmers and 218 collage students, reveals the dairy farmers show more sensitivity to animal welfare and more favorable impression and stronger personification, such as “child-like” and “family-like” views. Thus emotion-based attitudes and the personification would be caused in any situations with human-animal interactions, regardless of the roles and the professional knowledge of animals. As a calming effect of handling for experimental animals and decreased escape distance on intimately reared cows show, animals interacted with human also have the emotion-based affection or emotional bond.

著者

竹下 秀子

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.63, no.1, pp.19-29, 2013 (Released:2013-07-31)

参考文献数

47

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I first discuss the developmental and evolutionary implications of the temporal reorganization of individual development in human infants, which have resulted in unique human characteristics during early development and child rearing, for example, (1) the large size of neonates, (2) “trade-off” in mother-infant interaction, (3) self-contact behaviors, (4) various manipulations of objects, and (5) emergence of “childhood” and caregiving by multiple caregivers. I also discuss the results of our recent study on human and chimpanzee fetuses by using three-dimensional ultrasonography; this study showed that the growth velocity of the brain volumes of chimpanzee fetuses does not accelerate during late pregnancy, whereas that of human fetuses does accelerate through late pregnancy. Additional analysis and findings show that the timing of cessation in the increase of growth velocity of brain volume among species is crucial to clarify how much earlier infants are born and how retarded is the development of their postural reactions. Previously accumulated data suggest that further verification of temporally modified growth and development among species will help understand the effect of individual development on the evolution of human behavior.

著者

後藤 和宏 牛谷 智一

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.58, no.1, pp.77-85, 2008 (Released:2008-06-27)

参考文献数

24

被引用文献数

1

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The purpose of this article was to address issues on what the role of species comparison is for the studies of animal psychology. Whereas some people think that the comparison has a critical role in their approaches, others do not. We classify these two groups of people as evolutionists and generalists, respectively. In the evolutionary approach, different species are compared to examine correlations between specific selective pressures (such as caching food) and cognitive abilities (such as spatial learning) in animals. In contrast, different species of animals are compared to examine universal principles of learning in the generalist approach. Although the generalists' ideas of the “universal” principles of learning provide parsimonious explanations of animals' behavior, they tend to underestimate influences of selective pressures on learning and cognition. We therefore propose a new framework for the study of animal learning and cognition; it is based on the evolutionary approach and examines ultimate causes of diversities of learning and cognition but includes ideas of generalists' approaches to explain proximate causes.

著者

入江 尚子

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.60, no.1, pp.1-7, 2010 (Released:2010-06-25)

参考文献数

36

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Cognitive abilities of elephants had not been studied so much until recently despite many anecdotal evidence of their enormous potentialities. But today, more and more researchers are becoming interested in studying their cognition, especially their general intelligence, memory, and numerical cognition. Genetically elephants are more closely related to the small-brained aardvarks and manatees than to primates, but a few evidence indicate that their cognitive ability is comparable to that of apes. We aim to introduce series of recent work on elephants and some suggestions for future studies. Especially, we would like to point out the importance of studying their cognition from the point of view of field of human language evolution and animal welfare in captivity.

著者

松本 正幸

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.63, no.1, pp.1-6, 2013 (Released:2013-07-31)

参考文献数

34

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Midbrain dopamine neurons are key components of the brain’s reward system. These neurons are excited by reward and sensory stimuli predicting reward, while they are inhibited by reward omission. These excitatory and inhibitory responses have been shown to play important roles in reward learning and positive motivation. However, it was unknown which parts of the brain provide dopamine neurons with reward-related signals necessary for their responses. Recent studies showed evidence that the lateral habenula, part of the structure called the epithalamus, is a good candidate for a source of reward-related signals in dopamine neurons. The lateral habenula projects to midbrain structures such as the substantia nigra pars compacta and ventral tegmental area which contain dopamine neurons. Electrical stimulation of the lateral habenula inhibits dopamine neuron activity. Neurons in the lateral habenula also encode reward-related signals but in an opposite manner to dopamine neurons (i.e., they are inhibited by reward and sensory stimuli predicting reward, and excited by reward omission). These findings suggest that the lateral habenula transmits reward-related signals to dopamine neurons by inhibiting them.

著者

高岡 祥子

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

pp.0907110054, (Released:2009-07-17)

参考文献数

46

被引用文献数

1 1

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Recent researches have shown that dogs (Canis familiaris) possess a number of social cognitive abilities and communicate with humans in unique ways. Several researches suggest that dogs do not only use the overt features of humans (e.g., pointing, gaze) to find a hidden food in an object choice task, but also recognize the covert aspects of humans (e.g., knowledge) to predict the actions of them. This paper reviews evidence showing such excellent social cognition in dogs. Several comparisons between wolves and dogs suggest that human-like social skills by dogs have evolved as a by-product of domestication. Besides, some researchers argue the possibility of acquisition of similar social skills between dogs and humans through convergent cognitive evolution, which enabled them to communicate. The study of social cognitive skills in dogs will broaden our understanding of comparative social cognition.

著者

森崎 礼子 高岡 祥子 藤田 和生

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.58, no.2, 2008-12-25

著者

時本 楠緒子 岡ノ谷 一夫

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.55, no.2, 2005-12-25

著者

乗越 皓司

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.50, no.2, pp.247-254, 2000-12-25

著者

佐藤 暢哉

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

pp.1006220065-1006220065, (Released:2010-07-01)

参考文献数

67

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Episodic memory is defined as a memory system that consciously carries out recollecting one's subjective past experience and re-experiencing it. Through these mental activities, episodic memory is thought to make mental time travel retrospectively and prospectively possible, which is sometimes considered to be unique to humans. However, after a seminal study in scrub-jays by Clayton & Dickinson (1998), animal models of episodic memory have been developing and are starting to affect the concept of human episodic memory itself. This paper will concentrate on reviewing the studies that could encourage nonhuman animals to utilize memory — the properties are consistent with current definition of human episodic memory. Additionally, a discussion on the possibility to divide the system of episodic memory into two sub-processes and to study in animals the sub-processes of episodic memory will be undertaken.

著者

伊澤 栄一

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

pp.11-18, 2017

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<p>Large-billed crows, <i>Corvus macrorhynchos</i>, are one of familiar resident birds in Japan. They are originally jungle/forest-dwelling birds but now broaden their habitats to urban 'concrete jungle' environments such as Tokyo and Sapporo. Despite the close and overlapping range of the habitat between humans and crows, the socio-behavioural function of crows and its psychological and neural underpinnings have been poorly understood. Here, I review the recent studies in animal psychology on inter-individual communication for the understanding of individual-based social ecology of large-billed crows. Particular focuses are made on audio-vocal, visual, and tactile communication. First, vocal exchange with a contact call (<i>ka</i> call) and the acoustic individuality of <i>ka</i> calls as an identity signal are outlined. Second topic for visual communication is on audio-visual cross-modal recognition of familiar individuals and the involvement of the individual recognition in the formation and maintenance of dominance relationship. Finally, nonreciprocal but unidirectional allopreening from dominants to subordinates in juvenile males is shown and its possible social function are discussed. To further understand the communication of crows from comparative perspectives, these findings of social behaviour and its function should be integrated with physiological research on the... onto the life-history axis of this species which is characterized by drastic change of social structures between juvenile and pair-bond stages.</p>

著者

片平 健太郎

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.66, no.2, pp.109-119, 2016 (Released:2017-01-26)

参考文献数

43

---

Mathematical or computational models have played important roles in investigating animal behaviors and underlying processes. A traditional approach in psychology to evaluate such models is "qualitative" one, which examines whether the model can explain observed phenomena or not. In contrast, "quantitative" approaches, which evaluate how well the model can account for the observed data compared to alternative models, have been proved useful especially in neuroscience. This article reviews the quantitative approaches to model evaluation. The advantages and limitations of the quantitative approaches are discussed. The author suggest that the quantitative and qualitative approaches are complimentary and jointly provide a powerful framework for investigating psychological processes underlying animal learning and behaviors.

著者

服部 裕子 藤田 和生

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.58, no.2, 2008-12-25

著者

根ケ山 光一

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

pp.66.1.6, (Released:2016-06-09)

参考文献数

18

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Both positivity and negativity are important components for the development of mother-offspring relationship. The "inter-body antagonism" is an important biological framework to promote offspring's independence from mothers. Weaning, an achievement of nutritional independence in offspring, is a typical situation in which mother-child negativity plays an important role. Human mother-child separation is also actualized by complex sociocultural allomothering systems consisting of objects, persons and institutes. Human triadic relationship in joint attention by mother and infant to object is a basic element of the systems. The relationship is preceded by "Proto-triadic relationship" in which particular body parts are used as targets in human inter-body interactions as in a case of tickling play.Not only object but also person could be a target of attention in triadic relation, and exchange of perspectives with the person is essential in the human infant's cultural learning and establishment of social network. A special allomothering by a girl called Moriane in an island of Okinawa is an example of such allomothering.

著者

牛谷 智一 後藤 和宏

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.58, no.1, pp.43-44, 2008 (Released:2008-06-27)

参考文献数

3

被引用文献数

1

著者

柴崎 全弘 石田 雅人

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.56, no.2, pp.101-106, 2006 (Released:2006-12-22)

参考文献数

38

被引用文献数

2 2

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Newts were trained under a massed-trial condition and then extinguished in a straight alleyway to assess the partial reinforcement extinction effect (PREE). There were four groups: one partial reinforcement group trained using a random schedule (RA), two partial groups for which reinforcement ratios were gradually increased (GI) or decreased (GD), and a continuous reinforcement group (CR). They showed significant acquisition and extinction effects. The CR group was the most resistant to extinction, with no significant difference among the other three. The results indicate a reverse PREE in newts, and suggest that their learning is controlled mainly by a simple Strengthening-Weakening mechanism.

著者

加藤 陽子 岡ノ谷 一夫

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.54, no.2, 2004-12-25

著者

大森 えみ 佐藤 和枝 渡辺 茂

出版者

日本動物心理学会

雑誌

動物心理学研究 (ISSN:09168419)

巻号頁・発行日

vol.47, no.2, 1997-12-15