| 1. |
- Patane, Ivan, et al.
(författare)
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Me, You, and Our Object : Peripersonal Space Recruitment During Executed and Observed Actions Depends on Object Ownership
- 2021
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Ingår i: Journal of experimental psychology. General. - : American Psychological Association (APA). - 0096-3445 .- 1939-2222. ; 150:7, s. 1410-1422
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Tidskriftsartikel (refereegranskat)abstract
- Peripersonal space (PPS) is a spatial representation that codes objects close to one’s own and to someone else’s body in a multisensory-motor frame of reference to support appropriate motor behavior. Recent theories framed PPS beyond its original sensorimotor aspects and proposed to relate it to social aspects of the self. Here, we manipulated the ownership status of an object (“whose object this is”) to test the sensitivity of PPS to such a pervasive aspect of society. To this aim, we assessed PPS through a well-established visuo-tactile task within a novel situation where we had dyads of participants either grasping or observing to grasp an object, whose ownership was experimentally assigned to either participant (individual ownership), or to both participants (shared ownership). When ownership was assigned exclusively (“this belongs to you/the other,” Experiment 1), the PPS recruitment emerged when grasping one’s own object (I grasp my object), as well as when observing others grasping their own object (you grasp your object). Instead, no PPS effect was found when grasping (and observing to grasp) an object that was not one’s own (I grasp yours, you grasp mine). When ownership was equally assigned (“this belongs to both of you,” Experiment 2), a similar PPS recruitment emerged and, again, both when the action toward the shared object was executed and merely observed. These findings reveal that ownership is critical in shaping relatively low-level aspects of body-object interactions during everyday simple actions, highlighting the deep mark of ownership over social behavior.
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| 2. |
- Thibault, Simon, et al.
(författare)
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Tool use and language share syntactic processes and neural patterns in the basal ganglia
- 2021
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 374:6569
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Tidskriftsartikel (refereegranskat)abstract
- Does tool use share syntactic processes with language? Acting with a tool is thought to add a hierarchical level into the motor plan. In the linguistic domain, syntax is the cognitive function handling interdependent elements. Using functional magnetic resonance imaging, we detected common neurofunctional substrates in the basal ganglia subserving both tool use and syntax in language. The two abilities elicited similar patterns of neural activity, indicating the existence of shared functional resources. Manual actions and verbal working memory did not contribute to this common network. Consistent with the existence of shared neural resources, we observed bidirectional behavioral enhancement of tool use and syntactic skills in language so that training one function improves performance in the other. This reveals supramodal syntactic processes for tool use and language.
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