Early-stage AD speech auxiliary screening system aiming at mandarin Chinese

Abstract

The invention relates to an early-stage AD speech auxiliary screening system aiming at mandarin Chinese. The system comprises a main body testing unit, a speech feature extracting unit and a recognizing unit, wherein the main body testing unit is used for testing a tested object; the speech feature extracting unit is used for extracting the speech features of the tested object and storing the speech features; the recognizing unit is used for recognizing the speech features; and the main body testing unit comprises a spontaneous voice module, a picture describing module, a word fluency module,a poem reciting module, a sentence repeating module, a picture naming module, a span testing module, a cycle pronouncing module and a picture matching module. The system starts from the aspect that the early-stage AD speech function is damaged, aiming at the research object of AD early-stage screening of the mandarin Chinese, the invention provides the assorted device relevant to the early-stage AD speech specific features, which has the advantages that the cost is low, the rich data can be acquired in real time, the large sample collection can be easily realized, remote collecting and analysis can be realized, etc.

Description

technical field [0001] The invention relates to an early AD speech auxiliary screening system for Mandarin Chinese. Background technique [0002] In the past ten years, the study of new, non-invasive, economical auxiliary diagnostic markers suitable for early AD screening has become a hot issue in the early diagnosis of AD. Researchers have proposed a series of auxiliary diagnostic methods that may become early screening tools for AD from different perspectives such as cognitive impairment, biochemical diagnosis, and neurophysiology, such as speech testing, smell testing, gait testing, retinal imaging testing, Aβ peripheral blood Screening, urine AD7c-NTP protein detection, electroencephalogram analysis (EEG), etc. [0003] The existing early AD screening schemes mainly have the following problems, which hinder the further clinical application of relevant diagnostic methods in early AD screening detection and AD disease process assessment. [0004] (1) The cost is relative...

AI Technical Summary

Problems solved by technology

However, due to limitations such as high cost, low penetration rate of invasive tests, and high threshold access, the above detection methods are difficult to be used as diagnostic tools for large-scale early AD screening

[0006] (2) Lack of reasonable use and systematic investigation of different speech tasks and extracted speech features

Since language impairment in early AD is manifested in many aspects such as speech and semantic retrieval, a single language task cannot fully understand the language specificity of early AD patients

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