本文關鍵詞： 單眼缺口立體 雙眼視差立體 深度知覺 VEPs(視覺誘發(fā)潛電位)　出處：《華中師范大學》2014年碩士論文　論文類型：學位論文

【摘要】：目的：為了探索單眼缺口立體的神經加工機制,以及單眼缺口立體與雙眼視差立體的深度加工機制是否相同。 方法：實驗1采用EEG技術,記錄被試在觀察單眼缺口立體、雙眼視差立體與平面的腦電波,利用ERP技術與偶極子溯源方法,分析和比較三類刺激的VEPs與溯源結果。實驗2采用EEG技術,將刺激投射至觀察者右腦,比較與分析單眼缺口立體、雙眼視差立體與平面在非注意條件下的VEPs與溯源結果。 結果：實驗1發(fā)現(xiàn)：(1)關于P1與N1成分的波幅與潛伏期,三類刺激(單眼缺口立體、雙眼視差立體、平面)的P1成分的潛伏期與波幅,以及N1的潛伏期均無顯著差異,雙眼視差立體的N1波幅在右腦比平面的顯著要小,單眼缺口立體與雙眼視差立體的N1成分的波幅在左右腦均無顯著差異；(2)關于P2與N2成分的波幅與潛伏期,三類刺激的P2與N2的潛伏期均無顯著差異,雙眼視差立體與平面的P2成分波幅在左枕頂、枕顳葉區(qū)域有顯著的差異,兩者的N2成分波幅則在左枕頂區(qū)、枕顳區(qū)、與右枕顳區(qū)有顯著差異,單眼缺口立體與雙眼視差立體的P2與N2成分波幅均在左枕葉與右枕頂顳葉區(qū)域顯著不同；(3)對單眼缺口和雙眼視差立體,以及的雙眼視差立體和平面的P2與N2時間窗(185-235ms)的差異波的BESA偶極子溯源分析,結果發(fā)現(xiàn)單眼缺口立體與雙眼視差立體的差異波存在一個單偶極子源,偶極子粗略地定位于右中顳回(middle temporal gyrus),雙眼視差立體與平面的差異波也存在一個單偶極子源,但偶極子粗略地定位于右楔葉(cuneus)。實驗2發(fā)現(xiàn)：(1)關于C1成分的潛伏期與波幅,三類刺激的C1成分的潛伏期與波幅均無顯著差異；關于P1與N1成分的波幅與潛伏期,三類刺激的P1與N1成分的潛伏期與波幅均無顯著差異；(2)關于P2與N2成分的波幅與潛伏期,三類刺激的P2成分的潛伏期在枕顳葉存在顯著的差異,這種顯著的差異主要表現(xiàn)在單眼缺口立體的潛伏期比雙眼視差立體要長、雙眼視差立體的潛伏期與平面要短,三類刺激的N2成分的潛伏期并無顯著差異,雙眼視差立體與平面的P2成分波幅的顯著差異發(fā)生在右枕頂區(qū)、枕顳區(qū),兩者的N2成分波幅在右腦則并無顯著的差異,單眼缺口立體與雙眼視差立體的P2與N2成分波幅顯著差異發(fā)生在右枕頂顳區(qū)。 結論：(1)單眼缺口立體的早期加工機制與雙眼視差立體相同,單眼缺口立體的匹配與深度加工可能和視差的匹配與計算的加工機制相同；(2)單眼缺口立體與雙眼視差立體在知覺階段的加工機制可能并不完全相同。
[Abstract]:Objective: To explore the mechanism of unilateral Nick stereoscopic nerve processing, and whether the mechanism of deep processing of monocular gap stereoscopic and binocular parallax is the same.
Methods: in Experiment 1, using EEG technology, subjects were recorded in the observation of Monocular Stereo gap, binocular stereo and plane brain waves, using ERP technology and dipole method, VEPs and tracing results analysis and comparison of three types of stimuli. In Experiment 2, using EEG technology, will stimulate the project to the observer right. The comparison and analysis of Monocular Stereo binocular disparity gap, stereo and plane under the condition of VEPs and tracing results.
Results: Experiment 1: (1) the amplitude and latency of P1 and N1 components, three types of stimuli (Monocular Stereo binocular parallax, gap, plane) latency and amplitude of P1 components, there were no significant differences between the N1 and the latency and amplitude of N1 stereo binocular parallax on the right side of the brain significantly smaller than the plane Monocular Stereo and binocular disparity gap, three-dimensional N1 amplitudes in the brain showed no significant difference; (2) amplitude and latency on the P2 and N2 components, there were no significant differences between P2 and N2 three kinds of stimulus latency, binocular parallax stereo and plane P2 component amplitude in the left occipital parietal and occipital temporal the leaf area had significant differences, the two components of N2 amplitude in the left parietal occipital area, occipital temporal region and right occipital temporal region had significant difference with monocular binocular parallax stereo stereo gap P2 and N2 components amplitudes were in the left occipital lobe and the right parietal occipital temporal regions were significantly different; (3) to single Eye and binocular disparity gap, and the binocular parallax stereoscopic and plane P2 and N2 time window (185-235ms) analysis of the BESA dipole difference wave, the results revealed that differences in monocular and binocular stereo disparity gap stereo wave has a single dipole dipole source, roughly located in the back in the right temporal (middle temporal gyrus), binocular stereo and plane wave difference and the existence of a single dipole dipole, but roughly located in right cuneus (cuneus). Experiment 2: (1) on the latency and amplitude of C1 components, there were no significant differences in latency and amplitude of three stimulus C1 amplitude and latency components; on the P1 and N1 components, there were no significant differences in latency and amplitude of P1 and N1 components of three types of stimuli; (2) amplitude and latency on the P2 and N2 components, three types of stimuli P2 latency in occipital temporal lobe significantly The difference, this difference is mainly manifested in the Monocular Stereo gap latency than the binocular parallax stereo to long latency and binocular parallax three-dimensional plane to short incubation period there was no significant difference between the three types of stimuli N2 components, significant difference between binocular parallax stereo and plane P2 component amplitude occurred in right occipital parietal and occipital temporal the amplitude of N2 component area, both in the right hemisphere had no significant difference, and the gap of monocular binocular parallax stereo stereo P2 and N2 composition amplitude significant differences occurred in the right temporal parietal occipital region.
Conclusion: (1) the early processing mechanism and monocular stereo stereo binocular disparity gap, the gap of stereo matching and monocular parallax and depth processing may be the same matching and processing mechanism of calculation; (2) Monocular Stereo and binocular stereo gap in the perception phase processing mechanism may not be exactly the same.

【學位授予單位】：華中師范大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：B845.1

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本文編號：1460309