Brain Modeling via Dimensionality Reduction and Feature Extraction

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Solution Overview

Problem

Current bio-signal collection and analysis methods lack the ability to effectively model and predict individual brain states and responses to stimuli, limiting their application in brain-computer interfaces and therapeutic applications.

Innovation Solution

A computer-implemented method that receives time-coded bio-signal data, projects it into a lower dimensioned feature space, extracts features, generates a training dataset, trains a brain model using a processor, and predicts brain states, allowing for feedback stimulus generation to achieve a target brain state, with the option to incorporate non-bio-signal data and utilize machine learning techniques like neural networks and generative adversarial networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional bio-signal collection and analysis methods are used, then the system is simple to implement, but the ability to model and predict individual brain states is insufficient

Engineering Contradiction:
Improvebrain state prediction accuracyVSAvoidmodeling system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the brain modeling process into distinct components: data collection from multiple sources, feature extraction, model training, and prediction generation. This segmentation allows each component to be optimized independently while maintaining overall system reliability for brain state prediction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces intermediate processing layers including feature extraction mechanisms and data transformation steps that mediate between raw bio-signal data and the final prediction model. These intermediaries enable complex modeling capabilities while managing system complexity through structured data flow.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If personalized brain modeling is implemented, then therapeutic intervention effectiveness is improved, but data processing requirements increase

Engineering Contradiction:
Improvetreatment protocol precisionVSAvoiddata processing volume
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent extracts relevant features from large volumes of multi-source data including bio-sensors, wearables, and electronic health records. This extraction process isolates the most predictive features for personalized brain modeling, reducing the effective data volume that needs to be processed while maintaining treatment precision.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary data processing, cleaning, and feature extraction before model training. This preliminary action prepares the data in advance, reducing the processing burden during actual model execution and enabling precise personalized treatment protocols.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If multi-source data integration is used, then prediction accuracy is improved, but system complexity increases

Engineering Contradiction:
Improvebrain state measurement accuracyVSAvoiddata integration system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a universal data integration framework that can process multiple data types from diverse sources including bio-sensors, wearables, and electronic health records. This multi-functional system handles different data formats and sources through standardized processing pipelines, improving measurement precision while managing complexity through unification.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent transforms multi-source data into a unified feature space, changing the dimensional representation of data from multiple separate sources into an integrated multi-dimensional feature vector. This dimensional transformation enables accurate brain state measurement while simplifying the integration process through mathematical unification.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20230309887A1System and method for brain modelling
Publication Date: 2023.10.05 INTERAXON
  • US20230309887A1 patent drawing
  • US20230309887A1 patent drawing
  • US20230309887A1 patent drawing

AI summary

Brain modelling includes receiving time-coded bio-signal data associated with a user; receiving time-coded stimulus event data; projecting the time-coded bio-signal data into a lower dimensioned feature space; extracting features from the lower dimensioned feature space that correspond to time codes of the time-coded stimulus event data to identify a brain response; generating a training data set for the brain response using the features; training a brain model using the training set, the brain model unique to the user; generating a brain state prediction for the user output from the trained brain model, and automatically computing similarity metrics of the brain model as compared to other user data; and inputting the brain state prediction to a feedback model to determine a feedback stimulus for the user, wherein the feedback model is associated with a target brain state.