| Records |
| Author |
Pell, M.D. |
| Title |
Cerebral mechanisms for understanding emotional prosody in speech |
Type |
Journal Article |
Year  |
2006 |
Publication |
Brain and Language |
Abbreviated Journal |
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| Volume |
96 |
Issue |
2 |
Pages |
221-234 |
| Keywords |
Emotion; Prosody; Speech; Laterality; Brain-damaged; Patient study; Sentence processing; Social cognitive neuroscience |
| Abstract |
Hemispheric contributions to the processing of emotional speech prosody were investigated by comparing adults with a focal lesion involving the right (n = 9) or left (n = 11) hemisphere and adults without brain damage (n = 12). Participants listened to semantically anomalous utterances in three conditions (discrimination, identification, and rating) which assessed their recognition of five prosodic emotions under the influence of different task- and response-selection demands. Findings revealed that right- and left-hemispheric lesions were associated with impaired comprehension of prosody, although possibly for distinct reasons: right-hemisphere compromise produced a more pervasive insensitivity to emotive features of prosodic stimuli, whereas left-hemisphere damage yielded greater difficulties interpreting prosodic representations as a code embedded with language content. |
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Equine Behaviour @ team @ |
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4637 |
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Sakai, M.; Hishii, T.; Takeda, S.; Kohshima, S. |
| Title |
Laterality of flipper rubbing behaviour in wild bottlenose dolphins (Tursiops aduncus): Caused by asymmetry of eye use? |
Type |
Journal Article |
| Year |
2006 |
Publication |
Behavioural Brain Research |
Abbreviated Journal |
Behav. Brain. Res. |
| Volume |
170 |
Issue |
2 |
Pages |
204-210 |
| Keywords |
Indo-Pacific bottlenose dolphin; Tursiops aduncus; Social behaviour; Contact behaviour; Flipper rubbing; Behavioural laterality; Eye use; Cerebral asymmetry |
| Abstract |
To determine whether wild Indo-Pacific bottlenose dolphins (Tursiops aduncus) at Mikura Island, Japan, show asymmetry of eye or flipper use during a social behaviour, we investigated the laterality of flipper-to-body (F-B) rubbing, in which one dolphin (“rubber”) rubs the body of another (“rubbee”) with its flipper. We analysed 382 episodes of video-recorded F-B rubbings performed by identified individuals (N = 111 rubbers). F-B rubbing was conducted significantly more frequently with the left flipper than with the right flipper. The duration of F-B rubbings was also significantly longer with the left flipper than with the right flipper. Of 20 dolphins, nine individuals showed significant left-side bias as the rubber in this behaviour, whereas no dolphins showed significant right-side bias. The results indicate a population-level left-side bias of the rubber in F-B rubbing. An analysis of the swimming configurations during this behaviour suggests that the asymmetry in F-B rubbing was caused not only by the laterality of the rubber, but by a preference for use of the left eye in both dolphins during this behaviour. Dolphins used the left eye significantly more frequently than the right eye during the inquisitive behaviour, while they showed no significant bias in flipper use during the object-carrying behaviour. These facts also suggest that the asymmetry of F-B rubbing is caused by the preference for using the left eye. Significant left-side bias was observed only in F-B rubbings initiated by the rubbee, in which the rubbee determined its position during this behaviour. This suggests that this behavioural asymmetry was enhanced by the rubbees choosing the left side of the rubber to ensure better and longer rubs. |
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0166-4328 |
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Equine Behaviour @ team @ |
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5347 |
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| Author |
Murphy, J.; Sutherland, A.; Arkins, S. |
| Title |
Idiosyncratic motor laterality in the horse |
Type |
Journal Article |
| Year |
2005 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
91 |
Issue |
3-4 |
Pages |
297-310 |
| Keywords |
Horse; Idiosyncratic motor behaviour; Laterality; Sidedness |
| Abstract |
Idiosyncratic motor behaviour was investigated during four experimental procedures in 40 horses (males = 20, females = 20) to establish if horses revealed evidence of significant right or left laterality. The experimental procedures included (1) detection of the preferred foreleg to initiate movement (walk or trot), (2) obstacle avoidance within a passageway (right or left), (3) obstacle avoidance when ridden and (4) idiosyncratic motor bias when rolling. The influence of the horses' sex on both the direction and the degree of the laterality was explored within and between experimental procedures. The findings showed that the direction, but not the degree of idiosyncratic motor preference in the horses was strongly sex-related. Male horses exhibited significantly more (t = 3.74, d.f. = 79, P < 0.001) left lateralised responses and female horses exhibited significantly more (t = -6.35, d.f. = 79, P < 0.01) right lateralised responses. There was also significant positive correlation (P < 0.05) between four of six possible inter-experimental relationships. The results suggest two discrete trends of laterality associated with the sex of the horse. The primary cause of idiosyncratic motor laterality may be genetically predetermined, influenced by environmental factors or a combination of these two and the current findings may support the development of sex-specific training schedules for the horse. Further, work in this area might assist in defining the mechanisms of brain hemisphere lateralisation and allocation of cognitive function in the horse. |
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refbase @ user @ |
Serial |
527 |
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| Author |
Chappell, J.; Kacelnik, A. |
| Title |
Selection of tool diameter by New Caledonian crows Corvus moneduloides |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
7 |
Issue |
2 |
Pages |
121-127 |
| Keywords |
Animals; Behavior, Animal; *Choice Behavior; Discrimination Learning; *Feeding Behavior; Female; Functional Laterality; *Manufactured Materials; *Plant Leaves; *Problem Solving; *Songbirds; Technology |
| Abstract |
One important element of complex and flexible tool use, particularly where tool manufacture is involved, is the ability to select or manufacture appropriate tools anticipating the needs of any given task-an ability that has been rarely tested in non-primates. We examine aspects of this ability in New Caledonian crows-a species known to be extraordinary tool users and manufacturers. In a 2002 study, Chappell and Kacelnik showed that these crows were able to select a tool of the appropriate length for a task among a set of different lengths, and in 2002, Weir, Chappell and Kacelnik showed that New Caledonian crows were able to shape unfamiliar materials to create a usable tool for a specific task. Here we examine their handling of tool diameter. In experiment 1, we show that when facing three loose sticks that were usable as tools, they preferred the thinnest one. When the three sticks were presented so that one was loose and the other two in a bundle, they only disassembled the bundle when their preferred tool was tied. In experiment 2, we show that they manufacture, and modify during use, a tool of a suitable diameter from a tree branch, according to the diameter of the hole through which the tool will have to be inserted. These results add to the developing picture of New Caledonian crows as sophisticated tool users and manufacturers, having an advanced level of folk physics. |
| Address |
Department of Zoology, South Parks Road, OX1 3PS, Oxford, UK. jackie.chappell@zoo.ox.ac.uk |
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English |
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1435-9448 |
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| Notes |
PMID:15069612 |
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no |
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Equine Behaviour @ team @ |
Serial |
2528 |
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| Author |
Hunt, G.R.; Gray, R.D. |
| Title |
Direct observations of pandanus-tool manufacture and use by a New Caledonian crow (Corvus moneduloides) |
Type |
Journal Article |
| Year |
2004 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
7 |
Issue |
2 |
Pages |
114-120 |
| Keywords |
Animals; *Behavior, Animal; *Discrimination Learning; *Feeding Behavior; *Functional Laterality; Manufactured Materials; *Plant Leaves; *Songbirds |
| Abstract |
New Caledonian crows are reported to have impressive pandanus-tool manufacture abilities. These claims are based on an extensive artefact record. However, inferring behavioural and cognitive abilities without direct observation of tool manufacture is problematic. Here we report (and document on video) direct observations of a crow making and using stepped pandanus tools at Pic Ningua. We observed (1) a bias for making tools on left edges consistent with that previously found at the site, (2) faithful manufacture of a stepped design with high overall congruence in the shapes of tools, (3) the use of convergent rips to first form the tapered end working away from the trunk then the wide end working towards the trunk, (4) appropriate functional use of stepped tools by use of the leaf-edge barbs to hook food from holes, and (5) consistent holding of tools on the left side of its head when using them. Our observations verify most of the claims based on the artefact record, but the crow's exact manufacture technique was slightly different to that inferred previously. |
| Address |
Department of Psychology, University of Auckland, 92019 Auckland, New Zealand. grhunt10@hotmail.com |
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English |
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1435-9448 |
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PMID:15069611 |
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no |
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Equine Behaviour @ team @ |
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2529 |
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Biro, D.; Inoue-Nakamura, N.; Tonooka, R.; Yamakoshi, G.; Sousa, C.; Matsuzawa, T. |
| Title |
Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
4 |
Pages |
213-223 |
| Keywords |
Animals; Cooking and Eating Utensils; *Culture; *Diffusion of Innovation; *Feeding Behavior/psychology; Female; Functional Laterality; *Imitative Behavior; Male; Motor Skills; Pan troglodytes/*psychology; *Social Environment |
| Abstract |
Chimpanzees (Pan troglodytes) are the most proficient and versatile users of tools in the wild. How such skills become integrated into the behavioural repertoire of wild chimpanzee communities is investigated here by drawing together evidence from three complementary approaches in a group of oil-palm nut- ( Elaeis guineensis) cracking chimpanzees at Bossou, Guinea. First, extensive surveys of communities adjacent to Bossou have shown that population-specific details of tool use, such as the selection of species of nuts as targets for cracking, cannot be explained purely on the basis of ecological differences. Second, a 16-year longitudinal record tracing the development of nut-cracking in individual chimpanzees has highlighted the importance of a critical period for learning (3-5 years of age), while the similar learning contexts experienced by siblings have been found to result in near-perfect (13 out of 14 dyads) inter-sibling correspondence in laterality. Third, novel data from field experiments involving the introduction of unfamiliar species of nuts to the Bossou group illuminates key aspects of both cultural innovation and transmission. We show that responses of individuals toward the novel items differ markedly with age, with juveniles being the most likely to explore. Furthermore, subjects are highly specific in their selection of conspecifics as models for observation, attending to the nut-cracking activities of individuals in the same age group or older, but not younger than themselves. Together with the phenomenon of inter-community migration, these results demonstrate a mechanism for the emergence of culture in wild chimpanzees. |
| Address |
Primate Research Institute, Kyoto University, Japan. dora.biro@zoology.oxford.ac.uk |
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Springer-Verlag |
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English |
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1435-9448 |
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PMID:12898285 |
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no |
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Equine Behaviour @ team @ |
Serial |
2560 |
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| Author |
Leighty, K.A.; Fragaszy, D.M. |
| Title |
Joystick acquisition in tufted capuchins (Cebus apella) |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
6 |
Issue |
3 |
Pages |
141-148 |
| Keywords |
Animals; Cebus/*physiology; *Computer Peripherals; Functional Laterality; Male; *Task Performance and Analysis; *User-Computer Interface |
| Abstract |
A number of nonhuman primate species have demonstrated the ability to use a joystick to control a cursor on a computer screen, yet the acquisition of this skill has not been the focus of systematic inquiry. Here, we examined joystick acquisition in four tufted capuchins under two directional relationships of joystick movement and resultant cursor displacement, isomorphic and inverted. To document the natural history of the acquisition of this skill, we recorded the development of visual tracking of the cursor and body tilting. Rates of acquisition were comparable between the two conditions. After mastering the task in one condition, subjects remastered the task at an accelerated rate in the opposing condition. All subjects significantly increased or maintained high proportions of cursor tracking throughout acquisition. All subjects demonstrated a postural tilt while moving the cursor from the mid-phase of acquisition through task mastery. In the isomorphic condition, all subjects tilted significantly more often in the direction of goal location than in the opposite direction. In three of the four series of tilting that were scored for subjects in the inverted condition, tilting occurred significantly more often toward the direction of goal location than the direction of required hand movement. Together these findings suggest that body tilting participates in the organization of directional movement of the cursor rather than reflecting merely the motoric requirements of the task (to manipulate a joystick). |
| Address |
Department of Psychology, University of Georgia, Athens, GA 30602-3013, USA. kleighty@uga.edu |
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English |
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1435-9448 |
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PMID:12838395 |
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no |
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Equine Behaviour @ team @ |
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2564 |
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| Author |
Rogers, L.J. |
| Title |
Evolution of hemispheric specialization: advantages and disadvantages |
Type |
Journal Article |
| Year |
2000 |
Publication |
Brain and Language |
Abbreviated Journal |
Brain Lang |
| Volume |
73 |
Issue |
2 |
Pages |
236-253 |
| Keywords |
Aggression/psychology; Animals; Behavior, Animal/physiology; Brain/*physiology; Chickens/physiology; *Evolution; Feeding Behavior/physiology; Functional Laterality/*physiology; Visual Fields/physiology; Visual Perception/physiology |
| Abstract |
Lateralization of the brain appeared early in evolution and many of its features appear to have been retained, possibly even in humans. We now have a considerable amount of information on the different forms of lateralization in a number of species, and the commonalities of these are discussed, but there has been relatively little investigation of the advantages of being lateralized. This article reports new findings on the differences between lateralized and nonlateralized chicks. The lateralized chicks were exposed to light for 24 h on day 19 of incubation, a treatment known to lead to lateralization of a number of visually guided responses, and the nonlateralized chicks were incubated in the dark. When they were feeding, the lateralized chicks were found to detect a stimulus resembling a raptor with shorter latency than nonlateralized chicks. This difference was not a nonspecific effect caused by the light-exposed chicks being more distressed by the stimulus. Instead, it appears to be a genuine advantage conferred by having a lateralized brain. It is suggested that having a lateralized brain allows dual attention to the tasks of feeding (right eye and left hemisphere) and vigilance for predators (left eye and right hemisphere). Nonlateralized chicks appear to perform these dual tasks less efficiently than lateralized ones. Reference is made to other species in discussing these results. |
| Address |
Division of Zoology, University of New England, Armidale, New South Wales, Australia. lrogers@metz.une.edu.au |
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English |
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0093-934X |
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PMID:10856176 |
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no |
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Equine Behaviour @ team @ |
Serial |
4621 |
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| Author |
Ruggieri, V. |
| Title |
The running horse stops: the hypothetical role of the eyes in imagery of movement |
Type |
Journal Article |
| Year |
1999 |
Publication |
Perceptual and motor skills |
Abbreviated Journal |
Percept Mot Skills |
| Volume |
89 |
Issue |
3 Pt 2 |
Pages |
1088-1092 |
| Keywords |
Adult; Cerebral Cortex/physiology; Eye Movements/*physiology; Female; Functional Laterality/physiology; Head/physiology; Humans; *Imagination; Models, Neurological; *Motion Perception; Movement/physiology; *Ocular Physiology; *Optical Illusions; Posture/physiology |
| Abstract |
To examine the hypothetical role of the eyes in visual mental imagery of movement 72 undergraduate women students in psychology were asked to imagine a running horse and then to produce the same mental image without moving the eyes and the head. In 59% of the subjects interesting modifications of the imagined movement appeared: 37% observed an inhibition of the movement and 19% an evident slowing up of the moving figure. The interpretation of this result was made by hypothesizing that the eyes are concretely involved in visual imagery processes. |
| Address |
University of Rome La Sapienza |
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English |
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0031-5125 |
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PMID:10710755 |
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no |
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refbase @ user @ |
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94 |
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| Author |
Cowell, P.E.; Fitch, R.H.; Denenberg, V.H. |
| Title |
Laterality in animals: relevance to schizophrenia |
Type |
Journal Article |
| Year |
1999 |
Publication |
Schizophrenia Bulletin |
Abbreviated Journal |
Schizophr Bull |
| Volume |
25 |
Issue |
1 |
Pages |
41-62 |
| Keywords |
Adult; Animals; Cognition; *Disease Models, Animal; Functional Laterality/*physiology; Humans; Language; Motor Activity/physiology; Schizophrenia/*physiopathology |
| Abstract |
Anomalies in the laterality of numerous neurocognitive dimensions associated with schizophrenia have been documented, but their role in the etiology and early development of the disorder remain unclear. In the study of normative neurobehavioral organization, animal models have shed much light on the mechanisms underlying and the factors affecting adult patterns of both functional and structural asymmetry. Nonhuman species have more recently been used to investigate the environmental, genetic, and neuroendocrine factors associated with developmental language disorders in humans. We propose that the animal models used to study the basis of lateralization in normative development and language disorders such as dyslexia could be modified to investigate lateralized phenomena in schizophrenia. |
| Address |
Dept. of Human Communication Sciences, University of Sheffield, United Kingdom |
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English |
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0586-7614 |
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| Notes |
PMID:10098913 |
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no |
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Equine Behaviour @ team @ |
Serial |
2827 |
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