The effect of task constraints on infants’ (bi)manual strategy for grasping and exploring objects

Fagard, Jacqueline; Lockman, Jeffrey J.

doi:10.1016/j.infbeh.2005.05.005

Cited by 96 publications

(92 citation statements)

References 33 publications

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“…In bimanual activities, both hands are employed in a coordinated manner and are sensitive to task complexity. Bimanual activities have been reported to elicit stronger patterns of hand biases in children, adults [49,[74][75][76] and non-human primates [for a review see 77]. However, unimanual actions have been shown to be sufficient to elicit patterns of hand bias for functionally different targets types in both non-human primates [78,79] and in children [56] and were most suitable in order to accommodate both of the target types for the present study.…”

Section: Behavioral Codingmentioning

confidence: 98%

Handedness as a marker of cerebral lateralization in children with and without autism

Forrester

Pegler

Thomas

et al. 2014

Behavioural Brain Research

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h i g h l i g h t s• We report on a detailed set of hand actions from two populations of right-handed boys.• Typically developing boys demonstrated a right hand bias for actions to objects.• Typically developing boys also demonstrated a left hand bias for actions to the self.• Boys with autism revealed mixed-handedness for actions to objects and to the self.• Handedness reveals a dissociation for functional specialization of the hemispheres. a r t i c l e i n f o b s t r a c tWe employed a multiple case studies approach to investigate lateralization of hand actions in typically and atypically developing children between 4 and 5 years of age. We report on a detailed set of over 1200 hand actions made by four typically developing boys and four boys with autism. Participants were assessed for unimanual hand actions to both objects and the self (self-directed behaviors). Individual and group analyses suggest that typically developing children have a right hand dominance for hand actions to objects and a left hand dominance for hand actions for self-directed behaviors, revealing a possible dissociation for functional specialization of the left and right hemispheres respectively. Children with autism demonstrated mixed-handedness for both target conditions, consistent with the hypothesis that there is reduced cerebral specialization in these children. The findings are consistent with the view that observed lateralized motor action can serve as an indirect behavioral marker for evidence of cerebral lateralization.

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Section: Behavioral Codingmentioning

confidence: 98%

Handedness as a marker of cerebral lateralization in children with and without autism

Forrester

Pegler

Thomas

et al. 2014

Behavioural Brain Research

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“…This research offered insights into children's competent, purposeful and social use of objects that contrast to the prevalence of developmental research concerning children's object use which often suggests an immature progression with a focus on individual children (e.g. Lockman 2000;Fagard and Lockman 2005). There is considerable theoretical discussion about and research on the perception and deployment of affordances of objects in an educational environment.…”

Section: The Role Of Objects In the Early Yearsmentioning

confidence: 99%

Children’s Use of Objects in Their Storytelling

Bateman

Carr

Gunn

2017

Interactions in Early Childhood Education

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“…In the drawer task Wiesendanger and colleagues (1996) reported that all 20 right-handed adult subjects spontaneously chose the left hand for pulling the drawer and the right hand for grasping the object. Infants performing bimanual tasks may also show consistently differentiated and complementary roles for the two hands (Fagard and Lockman 2005;Fagard and Marks 2000;Ramsay and Weber 1986). 17-19 month-old infants in the Ramsay and Weber (1986) study showed an overall preference to lift the lid with the right hand and take the toy with the left (R-L).…”

Section: Role-differentiated Hand Usementioning

confidence: 99%

“…When the two trials were performed with the same hand preference the infant was categorized as either R-L or L-R. If this differed between the two trials, the handedness was categorized as inconsistent (after Fagard and Lockman, 2005).…”

Section: Bimanual Complete Differentiationmentioning

confidence: 99%

Bimanual strategies for object retrieval in infants and young children

et al. 2011

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Age differences in goal-directed bimanual coordination were studied in typically developing infants aged 9 -29 months, compared to a group of children aged 4-6 years and a group of adults, using an object retrieval task. This task required one hand to open and hold the lid of a transparent box, while the second hand retrieved a small toy from inside the box. Well-coordinated retrieval strategies with differentiated use of the two hands were not established in the majority of infants until 18 months of age. Temporal analysis of the hand actions revealed that, unlike adults who perform the task with close synchronization of the hands at the start, the infants performed the task sequentially and did not activate the second hand until the first hand had started to lift the lid. The children's hand preferences for the two hand actions also contrasted with those of adults. In children aged 27-29 months and 4-6 years there was a preference for using the right hand to lift the lid while in right-handed adults the reverse pattern was observed. The results suggest that although bimanual coordination starts to develop in the second year of life, the adult pattern of performance on this task is not observed before 6 years of age. It is likely that further maturation of the brain networks involved in bimanual coordination, and in particular functional interhemispheric transfer via the corpus callosum, is required before automatization of bimanual hand actions is achieved.

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The effect of task constraints on infants’ (bi)manual strategy for grasping and exploring objects

Cited by 96 publications

References 33 publications

Handedness as a marker of cerebral lateralization in children with and without autism

Handedness as a marker of cerebral lateralization in children with and without autism

Children’s Use of Objects in Their Storytelling

Bimanual strategies for object retrieval in infants and young children

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