Neural Mechanisms of Tool Use and Action Representation

The capacity to use implements and to construct internal models of actions is supported by a widespread network that integrates perceptual, motor and conceptual components. Core nodes include parietal and premotor cortices for planning and executing manipulations, and temporal regions for encoding semantic and structural event properties. The action observation network recruits frontoparietal and posterior temporal areas to recognise, anticipate and learn both biological and non-biological movements. Within this framework, dedicated modules handle object-related event structures, technical reasoning and the retrieval of motor schemas. Neural representations range from detailed kinematic codes to abstract event templates, underpinning skill acquisition, rehabilitation strategies and the cultural evolution of technology.

Research from Nature Portfolio

Recent studies have revealed that frontoparietal and posterior temporal regions share a unified neural code for goal-directed actions and object events, representing event dynamics independent of animacy or modality. Lateral occipitotemporal cortex appears particularly tuned to the physics and structure of events, supporting both action recognition and prediction. Complementary work using multivariate pattern analyses has delineated perceptual and functional dimensions of manipulable objects—such as typical use, shape and weight—that guide categorisation and predict neural responses, highlighting the multidimensional organisation of tool knowledge. Seminal investigations have further shown that left lateral posterior temporal cortex encodes abstract, stimulus-independent action concepts, whereas frontoparietal circuits maintain stimulus-bound motor codes, revealing a representational hierarchy from concrete motor plans to generalised action semantics.

Neural Mechanisms of Tool Use and Action Representation publication trend

The graph below shows the total number of articles in neural mechanisms of tool use and action representation across all publications each year (not limited to Nature Index journals).

Technical terms

Action observation network: A distributed system of frontoparietal and temporal regions activated when observing or imagining actions.

Lateral occipitotemporal cortex (LOTC): A posterior cortical area that processes visual structure and physical dynamics of objects and events.

Inferior parietal lobule (IPL): A region integrating sensory and motor information to support tool manipulation and gesture planning.

Motor schema: A stored neural template of movement patterns that guides skilled actions.

Area PF (technical-cognition area): A sector of the left inferior parietal lobe implicated in technical reasoning and physical problem solving.

Apraxia: A disorder of skilled movement execution, characterised by impaired tool use and gesture production despite intact motor strength.

References

1. A shared neural code for the physics of actions and object events. Nature Communications (2023).
2. Neural and behavioral signatures of the multidimensionality of manipulable object processing. Communications Biology (2023).
3. Distinct roles of temporal and frontoparietal cortex in representing actions across vision and language. Nature Communications (2019).
4. The neural correlates of limb apraxia: An anatomical likelihood estimation meta-analysis of lesion-symptom mapping studies in brain-damaged patients. Neuroscience & Biobehavioral Reviews (2024).
5. Shaping the physical world to our ends through the left PF technical-cognition area. eLife (2025).
6. Investigating the effects of the aging brain on real tool use performance—an fMRI study. Frontiers in Aging Neuroscience (2023).