Embedding inertial-magnetic sensors in everyday objects: assessing spatial cognition in children

Area of Science:

• Developmental psychology
• Robotics
• Biomedical engineering

Background:

• Assessing spatial cognition in children is crucial for understanding development.
• Traditional methods can be subjective and time-consuming.
• Technology offers potential for objective and ecological assessments.

Purpose of the Study:

• To present an interdisciplinary technological approach for assessing children's spatial cognition.
• To introduce an instrumented toy (block-box) for tracking object insertion skills.
• To demonstrate the feasibility of using technology for early identification of developmental delays.

Main Methods:

• Development of an instrumented toy (block-box) with magneto-inertial sensors for orientation tracking.
• Derivation of functional specifications from neuroscience-based experimental protocols.
• Implementation of ad-hoc calibration procedures for unstructured environments.
• Preliminary trials with typically developing children (12-36 months) in a day-care setting.

Main Results:

• The instrumented toy effectively measures orientation errors and insertion time.
• The system allows for semi-automatic, rater-independent data collection.
• Preliminary results show the relevance of derived measurements to the object insertion task.

Conclusions:

• A technological approach to ecological assessment of children's spatial cognition is feasible.
• Instrumented toys can provide accurate, objective measurements relevant to developmental milestones.
• This technology may aid in the early identification and assessment of developmental delays.