Behavioral laterality in captive bonobos (Pan paniscus).

Hopkins, William D.; Bennett, Allyson J.; Bales, Stacy L.; Lee, Jennifer; Ward, Jeannette P.

doi:10.1037/0735-7036.107.4.403

Cited by 97 publications

(89 citation statements)

References 45 publications

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“…The latter term usually implied that the mother was walking (e.g. Hopkins et al, 1993b;Tomaszycki et al, 1998). However, Nishida (1993) used the term of cradling, but the behaviour recorded corresponded more to carrying, according to the above definition.…”

Section: Comparative Approach Of the Methodsmentioning

confidence: 99%

“…Thus, Hopkins et al (1993b) videotaped 11 bonobos (five males and six females) during their morning feeding for approximately 2 days each week. Seven behavioural units were observed and scored for laterality.…”

Section: R9522 Continuous Recordingmentioning

confidence: 99%

“…Videotaped observation periods were 60 min in duration. Binomial z-scores and the percentages of right-hand use were also calculated in the same condition as in Hopkins et al (1993b). Hopkins and De Waal (1995) found a significant deviation from 50% right-hand use, with a mean percentage right usage of 38% for carrying.…”

Section: R9522 Continuous Recordingmentioning

confidence: 99%

“…Hopkins and De Waal (1995) found a significant deviation from 50% right-hand use, with a mean percentage right usage of 38% for carrying. When the data of Hopkins et al (1993b) were combined with those of Hopkins and De Waal (1995) in order to establish the presence or absence of asymmetries at a population level for each of the behavioural measures, carrying patterns were significantly biased towards the left hand (Table 9.3). A similar finding is provided by Damerose and Hopkins (2001) who recorded continuously ten mother-infant dyads of baboons: a tendency for the left arm to be used by mothers to cradle the infant was found (Table 93).…”

Section: R9522 Continuous Recordingmentioning

confidence: 99%

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Posture and laterality in human and non-human primates: Asymmetries in maternal handling and the infant's early motor asymmetries

Damerose

Vauclair

2002

Comparative Vertebrate Lateralization

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This chapter is concerned with the question of the relations and possible influences of environmental factors on the establishment of patterns of manual lateralization in human and non-human primates. More specifically, we are interested in the relation between maternal postures and laterality in nonhuman primates (e.g. bias in cradling behaviour and hand preference of the mother) and the development of patterns of manual preferences in infants. In order to understand fully the many ways in which these variables could interact, we first review the evidence of postural biases in human adults when cradling and carrying their offspring. Next, we examine the divergent hypotheses advanced to explain the observed biases. The same is then done for non-human primates. A second part of our chapter (see Section 9.3) describes the different asymmetric patterns observed during the development of the infant concerning head turning, nipple preference, etc. i n both human and non-human primates.In a third part (see Section 9.4), we describe and compare the methods and definitions used by the different authors in their work. Then, we present the descriptions and definitions of behaviours that we are using in an ongoing study of Olive baboons (Papio anubis).Our main goal is to contribute to understanding the phylogenetic origins of hand laterality in humans by examining some of its possible determinants in non-human primates. Despite numerous efforts to propose models and explanatory schemata of hand laterality in non-human primates (e.g. MacNeilage, Studdert-Kennedy and Lindblom, 1987;Fagot and Vauclair, 1991; Ward and Hopkins, 1993), this question is still largely unresolved. On the other hand, views of determinants of hand laterality in humans still fluctuate between genetically (e.g. Annett, 1985Annett, , 1995 Hopkins and 307

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Section: Comparative Approach Of the Methodsmentioning

confidence: 99%

Section: R9522 Continuous Recordingmentioning

confidence: 99%

Section: R9522 Continuous Recordingmentioning

confidence: 99%

Section: R9522 Continuous Recordingmentioning

confidence: 99%

See 2 more Smart Citations

Posture and laterality in human and non-human primates: Asymmetries in maternal handling and the infant's early motor asymmetries

Damerose

Vauclair

2002

Comparative Vertebrate Lateralization

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“…This is also the case in some New and Old World monkeys and lesser apes (Hook-Costigan and Rogers, 1997;Olson et al, 1990). However, among great apes, there is increased use of the right versus the left hand when they adopt an upright posture (Hopkins, 1993;Hopkins et al, 1993;Olson et al, 1990, cf. De Vleeschouwer et al 1995.…”

mentioning

confidence: 86%

Simple Reaching Is Not So Simple: Association Between Hand Use and Grip Preferences in Captive Chimpanzees

Hopkins

Russell²,

Hook

et al. 2005

Int J Primatol

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We assessed the relationship between grip preference and hand use in chimpanzees in 2 experiments. In experiment 1, we evaluated consistency in hand use and grip preference across 4 food types. The chimpanzees showed population-level right-handedness and there are significant positive associations for both hand and grip use across food types. In experiment 2, we assessed validity of hand use in relation to grip preference in 2 colonies of chimpanzees via the same methodology. Differences in hand preferences between colonies were associated with variation in the observed grip preferences. There was no evidence of rearing effects on handedness in either colony. We discuss the overall results in the context of the evolution of handedness in relation to increasing motor demands as manifest in variation on grasping behavior. KeywordsChimpanzee; hand preference; grip preference There has been considerable historical (Ettlinger, 1988;Fagot and Vauclair, 1991;Marchant and McGrew, 1991;Warren, 1980) and contemporary (Corballis, 1992, in press; Hopkins and Cantalupo, in press;McGrew and Marchant, 1997;Palmer, 2002) debate regarding the presence or absence of population-level hand preferences in nonhuman primates and the factors that influence the expression of handedness in nonhumans. The question of whether nonhuman primates express population-level asymmetries is of considerable theoretical interest because of the alleged role of hemispheric specialization in the evolution of complex human behavior including tool-use, bipedalism and language (Bradshaw and Rogers, 1993). In the absence of a clear transition from no handedness to handedness throughout the evolutionary continuum, we can only postulate how handedness and hemispheric specialization evolved. Further understanding of factors that influence the expression of handedness in nonhuman primates is important to evaluate various models of the evolution of hemispheric specialization in primates.6To whom correspondence should be addressed to William D. Hopkins, Division of Psychobiology, Living Links Center, Yerkes Primate Research Center, Emory University, Atlanta, GA 30322; e-mail: Ircbh@rmy.emory.edu.. NIH Public Access Author ManuscriptInt J Primatol. Author manuscript; available in PMC 2007 December 27. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author ManuscriptThe most commonly used measure of hand preference in nonhuman primates is simple reaching (Lehman, 1993). Despite numerous studies in a variety of nonhuman primate species, there is little evidence that it induces population-level handedness. However, recent studies suggested that posture can influence the expression of directional biases in hand use for simple reaching (Fagot and Vauclair, 1991;MacNeilage et al., 1987;Westergaard et al., 1998). In prosimians, preferential use of the left hand is increased when they adopt an upright versus a tripedal posture . This is also the case in some New and Old World monkeys and lesser apes (Hook-Costigan and Rogers, 1997;Olson et al., 1990). H...

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On the other hand: Current issues in and meta-analysis of the behavioral laterality of hand function in nonhuman primates

McGrew¹,

Marchant²

1997

Am. J. Phys. Anthropol.

347

243

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The last decade has seen a resurgence of interest in laterality of function in primates, especially in hand use as it links to handedness and language in Homo sapiens. Manual lateralization of behavior in humans reflects asymmetry in cerebral structure, which must have evolved from nonhuman progenitors. To what extent is hand function lateralized in our nearest living relations? First, we address current issues of theory and methodology: statistics, measurement, variables, setting, sensory modality, and sample size. Specific topics include preference vs. performance, posture, bimanuality, inheritance, and arm asymmetry. We categorize the published literature in a descriptive, classificatory framework of five levels that range from Level 1, ambilaterality, to Level 5, human-like handedness. In a meta-analysis we put 241 published data-sets to a methodological test of seven criteria and code the 48 survivors onto the levels framework, by taxonomic grouping (prosimian, New World monkey, Old World monkey, ape, chimpanzee). Primates at Level 1 are mostly wild or naturalistic populations performing spontaneous species-typical behavior patterns. Most primates are at Levels 2 and 3, that is, individually lateralized to either side, especially on complex, demanding or practiced tasks, usually as devised in captive settings. Only chimpanzees show signs of population-level bias (Levels 4 and 5) to the right, but only in captivity and only incompletely. We conclude that nonhuman primate hand function has not been shown to be lateralized at the species level-it is not the norm for any species, task, or setting, and so offers no easy model for the evolution of human handedness.

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Behavioral laterality in captive bonobos (Pan paniscus).

Cited by 97 publications

References 45 publications

Posture and laterality in human and non-human primates: Asymmetries in maternal handling and the infant's early motor asymmetries

Posture and laterality in human and non-human primates: Asymmetries in maternal handling and the infant's early motor asymmetries

Simple Reaching Is Not So Simple: Association Between Hand Use and Grip Preferences in Captive Chimpanzees

On the other hand: Current issues in and meta-analysis of the behavioral laterality of hand function in nonhuman primates

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