Selection of Prime Actor in Humans during Bimanual Object Manipulation

Theorin, Anna; Johansson, Roland S.

doi:10.1523/jneurosci.1624-10.2010

Cited by 11 publications

(9 citation statements)

References 68 publications

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“…In monkeys, these areas are also known to underlie arm/hand selection and control (Cisek and Kalaska, 2005; Hoshi and Tanji, 2004, 2006). Additionally, previous imaging results implicate these areas as important for planning and hand selection during bimanual object manipulation (Theorin and Johansson, 2010). …”

Section: Discussionmentioning

confidence: 84%

Human posterior parietal cortex mediates hand-specific planning

Valyear

Frey

2015

NeuroImage

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The processes underlying action planning are fundamental to adaptive behavior and can be influenced by recent motor experience. Here, we used a novel fMRI Repetition Suppression (RS) design to test the hypotheses that action planning unfolds more efficiently for successive actions made with the same hand. More efficient processing was predicted to correspond with both faster response times (RTs) to initiate actions and reduced fMRI activity levels – RS. Consistent with these predictions, we detected faster RTs for actions made with the same hand and accompanying fMRI-RS within bilateral posterior parietal cortex and right-lateralized parietal operculum. Within posterior parietal cortex, these RS effects were localized to intraparietal and superior parietal cortices. These same areas were more strongly activated for actions involving the contralateral hand. The findings provide compelling new evidence for the specification of action plans in hand-specific terms, and indicate that these processes are sensitive to recent motor history. Consistent with computational efficiency accounts of motor history effects, the findings are interpreted as evidence for comparatively more efficient processing underlying action planning when successive actions involve the same versus opposite hand.

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Section: Discussionmentioning

confidence: 84%

Human posterior parietal cortex mediates hand-specific planning

Valyear

Frey

2015

NeuroImage

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“…suggested the involvement of different thalamic structures in the salience network (linked with limbic structures including insular cortices) and in the executive control network (involving prefrontal cortices). These networks are supposed to be involved in decision‐making processes, which could be relevant for parenting . Other authors related right thalamic activation with empathy .…”

Section: Discussionmentioning

confidence: 99%

“…This structure is considered important for the mother–infant bond in mammalian species, but the reason why is not clear and might be complex. In addition to empathy, thalamic involvement in salience and executive control network could be crucial for the decision‐making process involved in the parental activity . OT has been suggested to modulate salience of socio‐affective stimuli and several studies in both humans and animals suggested that OT might be involved in various decision‐making processes .…”

Section: Discussionmentioning

confidence: 99%

Neurofunctional maps of the ‘maternal brain’ and the effects of oxytocin: A multimodal voxel‐based meta‐analysis

Rocchetti

Raduà

Paloyelis

et al. 2014

Psychiatry Clin Neurosci

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Several studies have tried to understand the possible neurobiological basis of mothering. The putative involvement of oxytocin, in this regard, has been deeply investigated. Performing a voxel-based metaanalysis, we aimed at testing the hypothesis of overlapping brain activation in functional magnetic resonance imaging (fMRI) studies investigating the mother-infant interaction and the oxytocin modulation of emotional stimuli in humans. We performed two systematic literature searches: fMRI studies investigating the neurofunctional correlates of the 'maternal brain' by employing mother-infant paradigms; and fMRI studies employing oxytocin during emotional tasks. A unimodal voxel-based meta-analysis was performed on each database, whereas a multimodal voxel-based meta-analytical tool was adopted to assess the hypothesis that the neurofunctional effects of oxytocin are detected in brain areas implicated in the 'maternal brain. ' We found greater activation in the bilateral insula extending to the inferior frontal gyrus, basal ganglia and thalamus during mother-infant interaction and greater left insular activation associated with oxytocin administration versus placebo. Left insula extending to basal ganglia and frontotemporal gyri as well as bilateral thalamus and amygdala showed consistent activation across the two paradigms. Right insula also showed activation across the two paradigms, and dorsomedial frontal cortex activation in mothers but deactivation with oxytocin. Significant activation in areas involved in empathy, emotion regulation, motivation, social cognition and theory of mind emerged from our multimodal meta-analysis, supporting the need for further studies directly investigating the neurobiology of oxytocin in the motherinfant relationship.

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“…For example, switching roles across hands could prevent having to reorient or regrasp the object. This is particularly useful when the external task conditions change (38).…”

Section: From Unimanual To Bimanual Hand Pose Selectionmentioning

confidence: 99%

Hand pose selection in a bimanual fine-manipulation task

Yao

Sternad

Billard

2021

Journal of Neurophysiology

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Many daily tasks involve the collaboration of both hands. Humans dexterously adjust hand poses and modulate the forces exerted by fingers in response to task demands. Hand pose selection has been intensively studied in unimanual tasks, but little work has investigated bimanual tasks. This work examines hand poses selection in a bimanual high-precision screwing task taken from watchmaking. Twenty right-handed subjects dismounted a screw on the watchface with a screwdriver in two conditions. Results showed that although subjects employed similar hand poses across steps within the same experimental conditions, the hand poses differed significantly in the two conditions. In the free-base condition, subjects needed to stabilize the watchface on the table. The role-distribution across hands was strongly influenced by hand dominance: the dominant hand manipulated the tool, whereas the non-dominant hand controlled the additional degrees of freedom that might impair performance. In contrast, in the fixed-base condition, the watchface was stationary. Subjects employed both hands even though single hand would have been sufficient. Importantly, hand poses decoupled the control of task-demanded force and torque across hands through virtual fingers that grouped multiple fingers into functional units. This preference for bimanual over unimanual control strategy could be an effort to reduce variability caused by mechanical couplings and to alleviate intrinsic sensorimotor processing burdens. To afford analysis of this variety of observations, a novel graphical matrix-based representation of the distribution of hand pose combinations was developed. Atypical hand poses that are not documented in extant hand taxonomies are also included.

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Selection of Prime Actor in Humans during Bimanual Object Manipulation

Cited by 11 publications

References 68 publications

Human posterior parietal cortex mediates hand-specific planning

Human posterior parietal cortex mediates hand-specific planning

Neurofunctional maps of the ‘maternal brain’ and the effects of oxytocin: A multimodal voxel‐based meta‐analysis

Hand pose selection in a bimanual fine-manipulation task

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