隨機(jī)共振現(xiàn)象應(yīng)用于手部精細(xì)動(dòng)作的實(shí)驗(yàn)研究.pdf

1、浙江大學(xué)生儀學(xué)院碩士學(xué)位論文隨機(jī)共振現(xiàn)象應(yīng)用于手部精細(xì)動(dòng)作的實(shí)驗(yàn)研究姓名：艾磊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：生物醫(yī)學(xué)工程指導(dǎo)教師：劉軍20100101ABSTRACTStochasticResonanceiSanonlinearphenomenonwherebytheadditionofnoisecanimprovethedetectionofweakstimuliItonlyexistsinnonlinearsystemsanditstyp

2、icalcharacteristicisthatthesignalto—noiseradio(SNR)，whichisproportionaltothesystem’SsensitivityThispaperresearchesthefinemotorperformanceofhumanhandinordertoexplorethefunctionofstochasticresonanceonhumannervoussystemThef

3、ine—motorperformanceisacomplexmovementwhichisbasedontactilesensationandothersense；anditisthefoundationofhuman’SdailylifeButwithagesincreasedandaffectedbysomediseasessuchasdiabetesmellitusandstroke，thefine—motorperformanc

4、eofhumanhandwillbeimpairedgreatlyTheaimofthispaperistousestochasticresonancetoenhancethefine—motorperformanceofhumanhandWeevaluatetheeffectofnoiseonfine—motorperformanceindifferentleversduetounimodalstochasticresonancean

5、dcrossmodalstochasticresonanceElectricalnoisethatappliedtohumanbodyequalstomechanicaltactilesensationanditusethesamepathwayasfinemotordoeswhileauditorynoiseuseauditorypathwaySotheresearchofusingelectricalnoiseandauditory

6、noiseonfinemotorperformancebelongstounimodalstochasticresonanceandcrossmodalstochasticresonanceseperatelyWenotonlyusethemethodofpsychophysicstoenhancetwopointdiscriminationofhandbutalsousethePegboardtesttoenhancethefinem

7、otorperformanceofhumanhandLastlyweexplorethefunctionofnoiseontheactivationofmotorsensorycortexofthebrainandthesuppressionof“andprhythmTheresultshowsthatoptimalnoisecanenhancethetwopointdiscriminationandthefine—motorperfo

8、rmancewhichplotsallinverseUshapewiththenoiseintensitythatisatypicalcharacteristicofstochasticresonanceNoisecanimprovetheabilityofinformationprocessingofmotorsensorycortexTheresearchofthispaperlaidthefoundationforundersta