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本研究采用行为测量与ERP分析相结合的范式,以视差分离方式、线索提示有效性为自变量,考察三维空间中内源性注意定向对立体视觉加工的影响及其脑电机制。结果发现:无论是短SOA还是长SOA,3D空间中预测性中央符号线索对后续辨认任务均产生了启动效应,且启动效应量不随SOA延长而变化。短SOA下,经典提示效应和跨深度提示效应均表现为有效提示下的N1波幅大于无效提示条件;长SOA下,线索提示效应则表现出了无效提示条件诱发较大N1波幅的趋势。
In this study, a paradigm combining behavioral measurement with ERP analysis was used. The effect of endogenous attentional orientation on stereoscopic vision in three-dimensional space and its EEG mechanism were investigated by using parallax separation and cueing validity as independent variables. The results show that the predictive central symbolic cues in 3D space both have a priming effect on the subsequent identification tasks, and the priming effects do not change with the SOA extension. Under the short SOA, both the classical hint effect and the cross-hint hint effect show that the N1 amplitude under the effective hint is greater than the invalid hint. Under the long-term SOA, the cue hint effect shows the tendency of the invalid hint induced large N1 amplitude.