Determination of +Gz Tolerance End-point by Steady State Visual Evoked Potential
Abstract：Objective To study the possibility of applying steady-state visual evoked potential (SSVEP) to detect the end-point of +Gz tolerance. Method When a subject was exposed to +Gz acceleration on a human centrifuge,the SSVEP signals (evoked by LED lamps triggered by 8 Hz pulse train) were recorded.The characters of SSVEP in frequency domain were extracted by adaptive filtering,and a modified T2circ statistic was used to determine the visual obstruct objectively. Result SSVEP had strong relationship with visual obstruct of the subjects during +Gz exposure. Conclusion SSVEP might be used as an objective criterion for determination of end-point of +Gz tolerance and an index of the degree of symptoms as well.But,multi-parameter method seemed still necessary to get reliable estimations.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 31-35 )