Tinnitus Detection via Acoustic Startle Reflex and Gap Inhibition
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Solution Overview
Problem
Current tinnitus detection and measurement techniques are inadequate due to reliance on subjective responses, which are unreliable and prone to malingering, especially in humans and animals, and lack objective methods to accurately quantify tinnitus severity.
Innovation Solution
A device and method that objectively measure tinnitus by analyzing the electrical brain response to sound patterns, using acoustic startle reflex, gap inhibition, and pre-pulse inhibition tests to identify and quantify the auditory characteristics of tinnitus, such as frequency and intensity, without requiring subjective feedback or complex behavioral training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional subjective testing methods are used to detect tinnitus, then the testing process is simple and easy to administer, but the reliability and accuracy of detection is poor due to malingering and subjective bias
Solution Approach 1:
The patent replaces subjective behavioral reporting with objective physiological measurements. Specifically, it uses acoustic startle reflex measurements, gap detection tasks, and pre-pulse inhibition tests to detect tinnitus objectively, eliminating reliance on subject self-reporting and thereby improving reliability while maintaining reasonable testing complexity
Solution Approach 2:
The patent introduces intermediate physiological responses as mediators between the tinnitus condition and detection. By measuring acoustic startle reflexes, gap detection abilities, and pre-pulse inhibition effects, the system uses these physiological intermediaries to objectively indicate the presence and characteristics of tinnitus without requiring direct subjective input
2Measurement precision
If animal models with behavioral training are used to study tinnitus, then objective measurement is possible, but the training process is complex and time-consuming
Solution Approach 1:
The patent enables animals to serve themselves in the detection process by utilizing innate physiological responses rather than requiring learned behaviors. The acoustic startle reflex, gap detection, and pre-pulse inhibition tests rely on automatic physiological mechanisms that do not require extensive training, thereby achieving precise tinnitus measurement without significant time investment
Solution Approach 2:
Instead of training animals to voluntarily indicate tinnitus through learned behaviors, the patent inverts the approach by measuring how tinnitus automatically affects innate physiological responses. This reversal eliminates the need for training while maintaining measurement precision
3Measurement precision
If subjective response methods are used for tinnitus detection, then the testing equipment and procedure are simple, but the accuracy is compromised due to inability to detect in non-communicating subjects
Solution Approach 1:
The patent substitutes subjective reporting mechanisms with objective physiological measurement systems. By using acoustic startle reflex measurements, gap detection apparatus, and pre-pulse inhibition testing equipment, the system achieves accurate tinnitus detection in subjects who cannot communicate verbally, while the equipment complexity remains manageable
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
This approach allows for accurate and reliable detection and measurement of tinnitus in both humans and animals, reducing the risk of malingering and providing objective data on tinnitus severity, enabling more effective treatment strategies.
Implementation Method 1
analyzing the electrical brain response to sound patterns
Implementation Method 2
using acoustic startle reflex, gap inhibition, and pre-pulse inhibition tests
Implementation Method 3
using acoustic startle reflex, gap inhibition, and pre-pulse inhibition tests
Implementation Method 4
using acoustic startle reflex, gap inhibition, and pre-pulse inhibition tests
Data Source
AI summary
Objectively identifying an acoustic characteristic of tinnitus of a subject. The subject is exposed to a sound pattern having a background acoustic signal preceding an audible silence. The background acoustic signal has a selected acoustic characteristic. An electrical response of the subject's central nervous system to the exposure to the sound pattern is measured. The measured electrical response has a first portion representing the electrical response of the subject's central nervous system to the background acoustic signal, and a second portion representing the electrical response of the subject's central nervous system to the audible silence in the sound pattern. The first portion of the measured electrical response is compared to the second portion of the measured electrical response and a determination is made as to whether the subject has tinnitus with an acoustic characteristic similar to the selected acoustic characteristic based on the comparison.