ArticleScientific reports2020
Online proprioception feeds plasticity of arm representation following tool-use in healthy aging.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Age-related differences in embodying a tool under visual deprivation.Experimental brain research · 2026Article
- Eyes and hand are both reliable at localizing somatosensory targets.Experimental brain research · 2024Article
- Knowing your boundaries: no effect of tool-use on body representation following a gather-and-sort task.Experimental brain research · 2023Article
- Wrist Proprioception in Adults with and without Subacute Stroke.Brain sciences · 2022Article
- Are tools truly incorporated as an extension of the body representation?: Assessing the evidence for tool embodiment.Psychonomic bulletin & review · 2022Review
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Following tool-use, the kinematics of free-hand movements are altered. This modified kinematic pattern has been taken as a behavioral hallmark of the modification induced by tool-use on the effector representation. Proprioceptive inputs appear central in updating the estimated effector state. Here we questioned whether online proprioceptive modality that is accessed in real time, or offline, memory-based, proprioception is responsible for this update. Since normal aging affects offline proprioception only, we examined a group of 60 year-old adults for proprioceptive acuity and movement's kinematics when grasping an object before and after tool-use. As a control, participants performed the same movements with a weight-equivalent to the tool-weight-attached to their wrist. Despite hampered offline proprioceptive acuity, 60 year-old participants exhibited the typical kinematic signature of tool incorporation: Namely, the latency of transport components peaks was longer and their amplitude reduced after tool-use. Instead, we observed no kinematic modifications in the control condition. In addition, online proprioception acuity correlated with tool incorporation, as indexed by the amount of kinematics changes observed after tool-use. Altogether, these findings point to the prominent role played by online proprioception in updating the body estimate for the motor control of tools.
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