Neuroimaging-Guided Brain Stimulation for Precise Sleep Modulation
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Solution Overview
Problem
Existing methods for treating sleep disorders, such as insomnia, are limited by invasive procedures and lack accuracy in targeting specific brain regions due to speculative electrode placement, leading to unintended consequences and suboptimal results.
Innovation Solution
A neuroimaging-guided non-invasive brain stimulation (NIBS) system that uses advanced neuroimaging techniques to determine optimal electrode placement based on individual brain activity patterns, allowing for precise modulation of cortical activity to enhance sleep quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional transcranial direct current stimulation (c-TDCS) is used with general electrode placement based on cognitive process knowledge, then the treatment can be applied broadly to various brain functions, but the precision in targeting specific brain regions deteriorates leading to speculative placement and unintended consequences
Solution Approach 1:
The system performs preliminary neuroimaging scans (fMRI, PET, or MEG) before electrode placement to identify the specific brain regions involved in the target cognitive task. This preliminary mapping allows the system to customize electrode placement based on individual brain activation patterns rather than using general guidelines, thereby improving placement precision while maintaining broad applicability across different brain functions
Solution Approach 2:
The system transitions from uniform electrode placement based on general cognitive knowledge to localized, customized electrode positioning tailored to each individual's brain activation patterns. By adapting electrode placement to the specific local brain regions activated during the target task, the system achieves both precision for the specific function and versatility across different functions
2Area of stationary object
If both anode and cathode electrodes are placed on the head to stimulate brain regions, then broader brain coverage is achieved, but the complexity of interpreting effects increases due to simultaneous enhancement and suppression in different regions
Solution Approach 1:
The system extracts and isolates the effects of individual electrodes by using one electrode (typically the cathode) placed on the scalp over the target brain region, while the other electrode (anode) is placed on a reference site away from the brain (such as the neck or shoulder). This separation allows for clearer interpretation of stimulation effects, as the primary modulation occurs at the cathode site without the confounding simultaneous enhancement from a second brain-proximal anode
Solution Approach 2:
The system introduces a reference electrode as an intermediary element that serves as a neutral baseline. By placing the reference electrode outside the brain region, it mediates the electrical circuit without directly modulating brain activity, thereby simplifying the interpretation of effects to primarily reflect the stimulation at the active electrode site while still providing broad brain coverage through strategic positioning
3Manufacturing precision
If neuroimaging-guided customization is implemented for each individual, then treatment precision and effectiveness are improved, but the device complexity and procedural time increase
Solution Approach 1:
The system employs universal neuroimaging modalities (fMRI, PET, or MEG) that can be used across different cognitive tasks and individual patients. By using standardized imaging protocols and analysis methods that are applicable to multiple brain functions and populations, the system achieves high treatment precision through customization while avoiding excessive complexity in the underlying technology infrastructure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides more accurate and dependable interventions, potentially doubling the effectiveness of learning performance and improving sleep quality by customizing electrode arrangements for each individual, overcoming the limitations of conventional methods.
Implementation Method 1
A human brain may include neurons which exhibit measurable electrical signals when active. Accordingly, various measuring modalities, such as electrodes, may be used to measure such electrical activity.
Implementation Method 2
The application of electric fields or stimuli to the brain has been demonstrated for a variety of neurological conditions, including the treatment of various disorders.
Data Source
AI summary
Provided are systems, methods, and devices for providing mediation or alleviation of sleep disorders and insomnia. Systems may include an interface, processing devices, and a controller. The interface is configured to obtain measurements from a brain of a user with sleeping disorders and insomnia. A first processing device is configured to generate multiple brain state parameters characterizing one or more features of a brain state of the user. A second processing device is configured to generate models of the brain of the user based on the plurality of brain state parameters and the plurality of measurements, and determine, using the models and training data comprising one or more mediation data points, a mediation procedure for reducing one or more symptoms of the sleeping disorder or insomnia. The mediation procedure is provided to one or more entities, and one or more control signals are generated by the controller based on the mediation procedure.