Visual stimulator for congnitive evoked-response QSD

描述（由申请人提供）：最近发明了一种新的方法，用于在唤起的反应长于刺激之间的间隔时恢复叠加波形。这种新方法被称为QSD （q-Sequence Deconvolution）。QSD可以恢复以前未观察到的大脑反应，因为标准的诱发反应技术仅限于比刺激重复率周期短的反应。本项目将建立一个视觉刺激器，用于记录叠加的视觉诱发电位（vep）。然后，该项目将测试副电位是否以刺激重复率做出反应，刺激重复率与副电位重叠。如果是这样，那么电位可能与较慢时看到的电位不同

DESCRIPTION (provided by applicant): A new method for recovering superposed waveforms when the evoked-response is longer than the interval between stimuli has been recently invented. The new method is called QSD (q-Sequence Deconvolution). QSD can recover brain responses not previously observed because standard evoked-response technique is limited to responses shorter than the period of the stimulus repetition-rate. This project will build a visual stimulator for recording superposed VEPs (Visual Evoked Potentials). The project will then test whether the VEP responds at stimulus repetition-rates, which overlap the VEP. If it does, then the potentials may differ from those seen at slower stimulation rates. The project will also test whether stimuli more complex than checkerboards provide any additional measure of brain function. This project is health related because evoked-responses are widely used for screening and diagnostic testing. If the stimulator provides previously-unrecorded VEPs, then it is possible that such potentials could be of scientific and clinical use. Because the potentials are obtained from scalp electrodes it is easy to utilize such evoked-responses for clinical testing.