發(fā)布時(shí)間：2018-05-21 11:23

  本文選題：事件相關(guān)電位 + N�。� 參考：《航天醫(yī)學(xué)與醫(yī)學(xué)工程》2017年04期

【摘要】：目的研究不同轉(zhuǎn)速旋轉(zhuǎn)背景條件下,完成不同認(rèn)知負(fù)荷視覺(jué)認(rèn)知任務(wù)過(guò)程中的視認(rèn)知早期加工的變化。方法受試者為20名健康右利手大學(xué)生,視覺(jué)背景分為白色背景與不同轉(zhuǎn)速的模擬星空背景。要求受試者完成不反應(yīng)、選擇區(qū)分和選擇心算任務(wù),同時(shí)記錄12導(dǎo)腦電數(shù)據(jù)。結(jié)果各種負(fù)荷任務(wù)中中央?yún)^(qū)的P1潛伏期最短,峰值波幅最高;與白色背景相比,各種速度旋轉(zhuǎn)背景下,反應(yīng)時(shí)及P1潛伏期縮短;與白色背景相比,不同旋轉(zhuǎn)背景下完成選擇區(qū)分及選擇心算任務(wù)的P1峰值波幅升高。結(jié)論不同速度星空旋轉(zhuǎn)背景加速了視覺(jué)認(rèn)知的感知,在高負(fù)荷任務(wù)下增加啟動(dòng)效應(yīng)。星空旋轉(zhuǎn)不同角速度主要對(duì)區(qū)分反應(yīng)的主動(dòng)抑制加工過(guò)程產(chǎn)生影響。
[Abstract]:Objective to study the changes of early processing of visual cognition in the process of completing visual cognitive tasks with different rotation speed. Methods A total of 20 healthy right-handed college students were enrolled in this study. The visual background was divided into white background and simulated star-sky background with different rotational speeds. Subjects were asked to complete nonresponse, select tasks to distinguish and select mental arithmetic, and record 12-conduction EEG data at the same time. Results the latency of P1 was the shortest and the amplitude of peak wave was the highest in the central area of various load tasks; compared with the white background, the reaction time and P1 latency were shortened in the background of various speed rotation, and compared with the white background, The peak amplitude of P1 in the task of selection, differentiation and selection of mental arithmetic was increased under different rotation background. Conclusion the background of star rotation at different speeds accelerates the perception of visual cognition and increases the priming effect under high load tasks. Different angular velocities of star rotation mainly affect the processing process of active suppression of differential response.
【作者單位】： 中國(guó)航天員科研訓(xùn)練中心航天醫(yī)學(xué)基礎(chǔ)與應(yīng)用國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：全軍后勤科研重點(diǎn)項(xiàng)目(BWS14J024) 國(guó)家自然科學(xué)基金項(xiàng)目(81571845)
【分類(lèi)號(hào)】：R852

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