Hand preferences for unimanual and coordinated bimanual tasks in baboons (Papio anubis)
نویسندگان
چکیده
منابع مشابه
Hand preferences for unimanual and coordinated bimanual tasks in baboons (Papio anubis).
This study examined hand preference in baboons in a sample of 94 subjects for a unimanual task and in a sample of 104 subjects for a bimanual task. For the unimanual task, handedness was assessed by observing simple reaching for grains. For the bimanual task, tubes lined with peanut butter inside were presented to the baboons. The hand and the finger used to remove peanut butter were recorded. ...
متن کاملHand preferences on unimanual and bimanual tasks in Tonkean macaques (Macaca tonkeana).
This is the first study to examine hand preferences in Tonkean macaques on a bimanual task. One of our objectives was to continue the move toward greater task standardization, in order to facilitate comparisons between species and studies on handedness. The main aim was to test and determine task robustness, by varying intra-task complexity. To this end, we administered several different tasks ...
متن کاملHand preference for spontaneously unimanual and bimanual coordinated tasks in wild Sichuan snub-nosed monkeys: Implication for hemispheric specialization.
Lateralized behaviour has been studied as an observable measure of cerebral functional asymmetry for many years, and interest in the evolutionary origins of lateralized behaviour in humans has prompted research into the study of manual laterality in nonhuman primates. The Sichuan snub-nosed monkey (Rhinopithecus roxellana) is a rarely studied species as far as laterality research is concerned. ...
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Strong evidence indicates that non-human primates possess a numerical representation system, but the inherent nature of that system is still debated. Two cognitive mechanisms have been proposed to account for non-human primate numerical performance: (1) a discrete object-file system limited to quantities <4, and (2) an analog system which represents quantities comparatively but is limited by th...
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Trivers and Willard predicted that when parental condition has differential effects on the fitness of male and female offspring, parents who are in good condition will bias investment toward the sex that benefits most from additional investment. Efforts to test predictions derived from Trivers and Willard's model have had mixed results, perhaps because most studies have relied on proxy measures...
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ژورنال
عنوان ژورنال: Cognitive Brain Research
سال: 2005
ISSN: 0926-6410
DOI: 10.1016/j.cogbrainres.2005.05.012