發(fā)布時間：2018-09-10 16:07

【摘要】：關(guān)于視覺注意能否以及如何改變線長知覺的爭論由來已久。研究者們分別用不同的實驗范式得出了視覺注意增加、減弱和不影響線段的主觀長度三種結(jié)論。然而,由于每種實驗范式都遭到諸如未能有效引發(fā)視覺注意或引發(fā)視覺注意不純等質(zhì)疑,因此究竟哪種觀點更為正確目前尚無定論。此外,多數(shù)研究都只用單一的實驗范式展開,因此所得結(jié)論是確由注意引起還是受具體范式影響備受質(zhì)疑。針對以上問題,我們在本研究中用了兩種不同的注意范式分別對視覺注意如何影響長度知覺這一問題進行了探索。研究包括兩部分研究共四個實驗。其中,研究一中,我們用雙側(cè)點陣運動范式調(diào)節(jié)視覺注意,讓被試判斷呈現(xiàn)于雙側(cè)視野的線段長度,最后得出了注意增加線段的主觀長度的結(jié)論。研究二中,我們采用棱鏡適應(yīng)范式調(diào)節(jié)空間注意向左偏轉(zhuǎn)、向右偏轉(zhuǎn)和不偏轉(zhuǎn),運用前測后測設(shè)計,通過比較被試前后測的線長判斷任務(wù)的績效差異,也證明了視覺注意能增加線段的主觀長度。我們用不同的注意范式一致地證明了視覺注意能夠增加線段的主觀長度這一結(jié)論,這排除了我們的結(jié)果是由具體實驗范式引起的這一可能性,使結(jié)論更具可推廣性。同時,我們的注意范式相比以往的注意范式更為純凈,因而由之得出的結(jié)論更可靠�？傊�,我們的研究在不同的注意范式下證明了注意能夠增加線段的主觀長度,這同時也說明了注意能夠改變知覺外觀。
[Abstract]:There has been a long debate about whether and how visual attention can change line length perception. Using different experimental paradigms, the researchers concluded that visual attention increases, weakens and does not affect the subjective length of line segments. However, since each experimental paradigm has been questioned, such as not attracting visual attention effectively or causing visual attention to be impure, there is no final conclusion as to which viewpoint is more correct. In addition, most of the studies are carried out with a single experimental paradigm, so whether the conclusion is really caused by attention or influenced by specific paradigm is questioned. In order to solve the above problems, we use two different attention paradigms to explore how visual attention affects length perception. The research consists of two parts and four experiments. In the first study, we use the bilateral lattice motion paradigm to adjust visual attention, let the subjects judge the length of the line segment presented in the bilateral visual field, and finally draw the conclusion that attention increases the subjective length of the line segment. In the second study, we adopted the prism adaptation paradigm to adjust the spatial attention deflection to the left, to the right and to the right, and used the pre-test and post-test design to compare the performance differences of the measured line length before and after the subjects. It is also proved that visual attention can increase the subjective length of line segments. We have consistently proved that visual attention can increase the subjective length of line segments by using different attention paradigms, which excludes the possibility that our results are caused by specific experimental paradigms and makes the conclusions more extensible. At the same time, our attention paradigm is purer than the previous one, so the conclusion is more reliable. In a word, our study proves that attention can increase the subjective length of line segments under different attention paradigms, which also shows that attention can change the appearance of perception.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：B842

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