| Records |
| Author |
Parr, L.A.; Hopkins, W.D.; de Waal, F.B. |
| Title |
Haptic discrimination in capuchin monkeys (Cebus apella): evidence of manual specialization |
Type |
Journal Article |
| Year |
1997 |
Publication |
Neuropsychologia |
Abbreviated Journal |
Neuropsychologia |
| Volume |
35 |
Issue |
2 |
Pages |
143-152 |
| Keywords |
Aging/psychology; Animals; Cebus; Cues; Discrimination (Psychology)/*physiology; Female; Functional Laterality/*physiology; Male; Psychomotor Performance/physiology; Sex Characteristics; Touch/physiology |
| Abstract |
Two experiments investigated the effects of haptic and visual discrimination on hand preference in 22 brown capuchin monkeys (Cebus apella). The percentage of left-handed subjects in Experiment 1 were 63.6%, 45.5%, and 18.2% for haptic, bipedal, and quadrupedal reaching, respectively. In Experiment 2, the haptic demands of the task were manipulated by using additional food types and another tactile medium. Left-hand preferences were further strengthened when reaching into water compared to pineshavings in Experiment 1. Reaching with no tactile interference resulted in equal numbers of lateralized and nonlateralized subjects. These results show that when reaching demands the use of haptic cues, as opposed to visual ones, monkeys shift towards greater left hand use. This is consistent with what is known about right hemisphere superiority for haptic discrimination in humans. |
| Address |
Division of Psychobiology, Yerkes Regional Primate Research Center, Atlanta, GA 30329, USA. parr@rmy.-emory.edu |
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0028-3932 |
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PMID:9025118 |
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no |
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refbase @ user @ |
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201 |
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| Author |
Deuel, N.R.; Lawrence, L.M. |
| Title |
Laterality in the gallop gait of horses |
Type |
Journal Article |
| Year |
1987 |
Publication |
Journal of biomechanics |
Abbreviated Journal |
J Biomech |
| Volume |
20 |
Issue |
6 |
Pages |
645-649 |
| Keywords |
Animals; *Functional Laterality; *Gait; Horses/*physiology; Kinesis |
| Abstract |
Bilateral asymmetry in gallop stride limb contact patterns of four Quarter Horse fillies was documented by high-speed cinematography. Horses were filmed with rider by two cameras simultaneously while galloping along a straightaway. Even though signaled for each gallop lead an equivalent number of times, horses frequently switched leads, selecting the left lead nearly twice as often as the right. Velocities and stride lengths were greater for the left lead than the right, but stride frequencies did not differ between leads. Velocity effects were partitioned out in limb contact data analysis to enable the determination of persistent gallop stride asymmetries. The contact duration for the trailing (right) fore limb on the left lead exceeded the contact duration for the trailing (left) fore limb on the right lead. Selecting the right fore limb as the trailing fore limb may have allowed horses to use it to withstand the greater stresses and caused them to preferentially gallop with the left fore limb leading. Laterality may have an important influence on equine gallop motion patterns and thereby influence athletic performance. |
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0021-9290 |
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PMID:3611140 |
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no |
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refbase @ user @ |
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528 |
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Stennett, C.R.; Strauss, R.E. |
| Title |
Behavioural lateralization in zebrafish and four related species of minnows (Osteichthyes: Cyprinidae) |
Type |
Journal Article |
| Year |
2010 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
79 |
Issue |
6 |
Pages |
1339-1342 |
| Keywords |
binary data; Cyprinidae; Danio rerio; fish; laterality; monocular test; motor bias; score test; zebrafish |
| Abstract |
Behavioural lateralization has been observed in many species of fishes during stimulus-specific tasks. However, one area that has been overlooked is the study of naïve side bias in motor behaviour of fishes in the absence of direct visual stimulus. To this end, we examined naïve side biases in motor behaviour in five species of minnows (Osteichthyes: Cyprinidae). Fifteen individuals of each species were subjected to a T-shaped test arena, with 40 randomized replicates per individual. We took advantage of rheotaxis by running a slow current of water through each arm of the test apparatus. Of the 75 individuals tested, 55 showed a rightward turning preference. The overall right-biased behaviour observed in these fishes in the absence of systematic stimulus strongly suggests that a stimulus-free control condition be included in the experimental design whenever plausible for studies of laterality in fishes and presumably in other organisms. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5358 |
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| Author |
Wells, D.L.; Millsopp, S. |
| Title |
Lateralized behaviour in the domestic cat, Felis silvestris catus |
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Journal Article |
| Year |
2009 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
78 |
Issue |
2 |
Pages |
537-541 |
| Keywords |
cat; Felis silvestris catus; handedness; laterality; paw preference |
| Abstract |
Lateralized behaviour in the felids has been subject to little investigation. We examined the paw use of 42 domestic cats on three tasks designed to determine whether the animals performed asymmetrical motor behaviour. The influence of the cats' sex and age on their paw preferences was also explored. The distribution of the cats' paw preferences differed significantly between the three tasks. Task 1, the most complex exercise involving retrieval of a food treat from an empty jar, encouraged the most apparent display of lateralized behaviour, with all but one animal showing a strong preference to use either their left or right paw consistently. Tasks 2 (an exercise involving reaching for a toy suspended overhead) and 3 (a challenge involving reaching for a toy moving along the ground) encouraged ambilateral motor performance. Lateralized behaviour was strongly sex related. Male and female cats showed paw preferences at the level of the population, but in opposite directions. Females had a greater preference for using their right paw; males were more inclined to adopt their left paw. Feline age was unrelated to either strength or direction of preferred paw use. Overall, the findings suggest that there are two distinct populations of paw preference in the cat that cluster strongly around the animals' sex. The results also point to a relationship between lateralized behaviour and task complexity. More apparent patterns of lateralized behaviour were evident on more complex manipulatory tasks, hinting at functional brain specialization in this species. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5377 |
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Siniscalchi, M.; Sasso, R.; Pepe, A.M.; Dimatteo, S.; Vallortigara, G.; Quaranta, A. |
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Sniffing with the right nostril: lateralization of response to odour stimuli by dogs |
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Journal Article |
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Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
In Press, Corrected Proof |
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Pages |
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animal welfare; Canis familiaris; dog; emotion; laterality olfaction; physiology |
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Lateralization in dogs, Canis familiaris, has been reported for paw usage and response to visual and acoustic stimuli. Surprisingly, however, no investigation of possible lateralization for the most relevant sensory domain of dogs, namely olfaction, has been carried out. Here we investigated left and right nostril use in dogs freely sniffing different emotive stimuli in unrestrained conditions. When sniffing novel nonaversive stimuli (food, lemon, vaginal secretion and cotton swab odours), dogs showed initial preferential use of the right nostril and then a shift towards use of the left nostril with repeated stimulus presentation. When sniffing arousal stimuli such as adrenaline and veterinary sweat odorants, dogs showed a consistent right nostril bias all over the series of stimulus presentations. Results suggest initial involvement of the right hemisphere in processing of novel stimuli followed by the left hemisphere taking charge of control of routine behaviour. Sustained right nostril response to arousal stimuli appears to be consistent with the idea that the sympathetic hypothalamic-pituitary-adrenal axis is mainly under the control of the right hemisphere. The implications of these findings for animal welfare are discussed. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5394 |
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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 |
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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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no |
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refbase @ user @ |
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527 |
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| Author |
McGreevy, P.D.; Thomson, P.C. |
| Title |
Differences in motor laterality between breeds of performance horse |
Type |
Journal Article |
| Year |
2006 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
99 |
Issue |
1-2 |
Pages |
183-190 |
| Keywords |
Horse; Lateralisation; Laterality; Breed; Training |
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This study examined the relationship between motor laterality in horses bred for different types of work and therefore different temperaments. Foreleg preference during grazing was measured in three populations of domestic horse, Thoroughbreds (TB, bred to race at the gallop), Standardbreds (SB, bred for pacing) and Quarter Horses (QH, in this case bred for so-called “cutting work” which involves manoeuvring individual cattle in and out of herds). With a one-sample t-test, TBs showed strong evidence of a left preference in motor laterality (P = 0.000), as did SBs (P = 0.002) but there was no convincing evidence for laterality in QH (P = 0.117). However, the increasing trend in left preference from QH to SBs then TBs was associated with increasing differences between individual horses within a breed. The overall preference (either left or right) increased with age (P = 0.008) and the rate of increase varied with breeds. The presence of a higher proportion of left-foreleg preferent individuals in TBs and SBs compared with QH may indicate that their training or selection (or both) has an effect on motor bias. |
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1828 |
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Corballis, M.C. |
| Title |
Of mice and men – and lopsided birds |
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Journal Article |
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2008 |
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Cortex |
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44 |
Issue |
1 |
Pages |
3-7 |
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Cerebral asymmetry; Handedness; Evolution; Laterality |
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The article by Zucca and Sovrano (2008, this issue) represents part of a new wave of studies of lateralization in nonhuman species. This work is often in conflict with earlier studies of human cerebral asymmetry and handedness, and the associated claim that these asymmetries are uniquely human, and perhaps even a result of the “speciation event” that led to modern humans. It is now apparent that there are close parallels between human and nonhuman asymmetries, suggesting that they have ancient roots. I argue that asymmetries must be seen in the context of a bilaterally symmetrical body plan, and that there is a balance to be struck between the adaptive advantages of symmetry and asymmetry. In human evolution, systematic asymmetries were incorporated into activities that probably are unique to our species, but the precursors of these asymmetries are increasingly evident in other species, including frogs, fish, birds, and mammals – especially primates. |
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Equine Behaviour @ team @ |
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4634 |
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Pell, M.D. |
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Cerebral mechanisms for understanding emotional prosody in speech |
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Journal Article |
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2006 |
Publication |
Brain and Language |
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96 |
Issue |
2 |
Pages |
221-234 |
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Emotion; Prosody; Speech; Laterality; Brain-damaged; Patient study; Sentence processing; Social cognitive neuroscience |
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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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Chapelain, A.; Blois-Heulin, C. |
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Lateralization for visual processes: eye preference in Campbell"s monkeys ( Cercopithecus c. campbelli ) |
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Journal Article |
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2009 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
12 |
Issue |
1 |
Pages |
11-19 |
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Visual laterality Cercopithecinae Eye choice |
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Abstract: Brain lateralization has been the matter of extensive research over the last centuries, but it remains an unsolved issue. While hand preferences have been extensively studied, very few studies have investigated laterality of eye use in non-human primates. We examined eye preference in 14 Campbell"s monkeys (Cercopithecus c. campbelli). We assessed eye preference to look at a seed placed inside a tube using monocular vision. Eye use was recorded for 100 independent and non-rewarded trials per individual. All of the 14 monkeys showed very strong preferences in the choice of the eye used to look inside the tube (mean preference: 97.6%). Eight subjects preferred the right eye and six subjects preferred the left eye. The results are discussed in light of previous data on eye preference in primates, and compared to data on hand preference from these subjects. Our findings would support the hypothesis for an early emergence of lateralization for perceptual processes compared to manual motor functions. |
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Equine Behaviour @ team @ |
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4746 |
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