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Piaget's Stage 1 of Cognitive Development

Piaget's Stage 1 of Cognitive Development

The sensorimotor stage, the initial phase of Jean Piaget's theory of cognitive development, spans the first two years of a child's life. During this period, infants actively engage with their surroundings, building cognitive awareness through direct interaction with the world. This interaction is primarily based on sensory perception and motor actions, allowing infants to gradually understand basic physical properties and predict how objects interact within their environment.
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Piaget's Stage 3 of Cognitive Development

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Piaget's Stage 2 of Cognitive Development

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Related Experiment Video

Updated: Jul 8, 2026

A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants

A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants

Published on: October 4, 2015

Decoding the neural stages from action and object recognition to mentalizing.

Moritz F Wurm¹, Seoyoung Lee^2,3

¹CIMeC - Center for Mind/Brain Sciences, University of Trento, 36068 Rovereto, Italy. moritz.wurm@unitn.it.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|July 6, 2026

Summary

This summary is machine-generated.

The human brain integrates action and object information in a core left-hemispheric network to understand intentions. This network bridges recognition systems and the mentalizing system for semantic interpretation.

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Decoding Natural Behavior from Neuroethological Embedding

Decoding Natural Behavior from Neuroethological Embedding

Published on: October 3, 2025

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Last Updated: Jul 8, 2026

A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants

A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants

Published on: October 4, 2015

Decoding Natural Behavior from Neuroethological Embedding

Decoding Natural Behavior from Neuroethological Embedding

Published on: October 3, 2025

Area of Science:

Neuroscience
Cognitive Science
Psychology

Background:

Inferring intentions from actions requires integrating conceptual action and object information with semantic knowledge.
The neural mechanisms underlying the interaction between action/object recognition and mentalizing remain unclear.

Purpose of the Study:

To elucidate the processing stages from basic action/object recognition to mentalizing.
To investigate how neural systems for action, object, and mental state representation interact.

Main Methods:

fMRI-based crossmodal multiple regression representational similarity analysis.
Examined human female and male participants' brain activity during action interpretation tasks.

Main Results:

A modality-general network of frontoparietal and temporal regions supports intention inference.
Distinct but overlapping networks exist for action, object, and mental state representation, challenging a strict hierarchical model.
A left-lateralized core network (ventrolateral prefrontal, inferior parietal, anterior lateral occipitotemporal cortex) shows representational overlap for action, object, and mental state information.

Conclusions:

The findings argue against a sequential bottom-up hierarchy from recognition to mentalizing.
A core left-hemispheric semantic hub integrates conceptual action/object information with mental state representation.
This core network is crucial for semantic interpretation and bridges recognition and mentalizing systems.