ArticleProceedings of the National Academy of Sciences of the United States of America2020
Stable readout of observed actions from format-dependent activity of monkey's anterior intraparietal neurons.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Article
- Hierarchical and context-dependent encoding of actions in human posterior parietal and motor cortex.Cell · 2026Article
- Dynamic spatiotemporal features in action recognition: a multimodal study.Communications biology · 2026Article
- Hierarchical and Context-Dependent Encoding of Actions in Human Posterior Parietal and Motor Cortex.bioRxiv : the preprint server for biology · 2025Article
- Population encoding of observed and actual somatosensations in the human posterior parietal cortex.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Neuronal Mechanisms Underlying Face Recognition in Non-human Primates.The Japanese psychological research · 2024Article
- The parietal architecture binding cognition to sensorimotor integration: a multimodal causal study.Brain : a journal of neurology · 2024Article
- The Representation of Observed Actions at the Subordinate, Basic, and Superordinate Level.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Social Touch: Its Mirror-like Responses and Implications in Neurological and Psychiatric Diseases.NeuroSci · 2023Review
- Complementary contribution of the medial and lateral human parietal cortex to grasping: a repetitive TMS study.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Two distinct networks containing position-tolerant representations of actions in the human brain.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Human mirror neuron system responsivity to unimodal and multimodal presentations of action.Experimental brain research · 2022Article
- What Happened to Mirror Neurons?Perspectives on psychological science : a journal of the Association for Psychological Science · 2022Article
- Parietal maps of visual signals for bodily action planning.Brain structure & function · 2021Review
- Local and system mechanisms for action execution and observation in parietal and premotor cortices.Current biology : CB · 2021Article
- A parietal region processing numerosity of observed actions: An FMRI study.The European journal of neuroscience · 2020Article
- A shared neural substrate for action verbs and observed actions in human posterior parietal cortex.Science advances · 2020Article
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6 authors.
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Abstract
Humans accurately identify observed actions despite large dynamic changes in their retinal images and a variety of visual presentation formats. A large network of brain regions in primates participates in the processing of others' actions, with the anterior intraparietal area (AIP) playing a major role in routing information about observed manipulative actions (OMAs) to the other nodes of the network. This study investigated whether the AIP also contributes to invariant coding of OMAs across different visual formats. We recorded AIP neuronal activity from two macaques while they observed videos portraying seven manipulative actions (drag, drop, grasp, push, roll, rotate, squeeze) in four visual formats. Each format resulted from the combination of two actor's body postures (standing, sitting) and two viewpoints (lateral, frontal). Out of 297 recorded units, 38% were OMA-selective in at least one format. Robust population code for viewpoint and actor's body posture emerged shortly after stimulus presentation, followed by OMA selectivity. Although we found no fully invariant OMA-selective neuron, we discovered a population code that allowed us to classify action exemplars irrespective of the visual format. This code depends on a multiplicative mixing of signals about OMA identity and visual format, particularly evidenced by a set of units maintaining a relatively stable OMA selectivity across formats despite considerable rescaling of their firing rate depending on the visual specificities of each format. These findings suggest that the AIP integrates format-dependent information and the visual features of others' actions, leading to a stable readout of observed manipulative action identity.
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