同じ漢字をじっと見続けると、漢字としての形態的まとまりがなくなって各部分がバラバラに知覚されたり、その漢字が一体何という字であったかわからなくなってしまうことがある、この現象は漢字のゲシュタルト崩壊と呼ばれる。
It is a well-known observation that when a Kanji character is viewed steadily and continuously, the viewer often becomes unable to recognize the Kanji as a whole pattern and it becomes difficult to judge whether or not the Kanji is orthographically correct. Such a phenomenon is called the “Gestaltzerfall” of Kanji characters.
Delays produced by prolonged viewing in the recognition of Kanji characters: analysis of the “Gestaltzerfall” phenomenon
by Ninose Y, Gyoba J.
http://www.ncbi.nlm.nih.gov/pubmed/8981675
It is a well-known observation that when a Kanji character is viewed steadily and continuously, the viewer often becomes unable to recognize the Kanji as a whole pattern and it becomes difficult to judge whether or not the Kanji is orthographically correct. Such a phenomenon is called the “Gestaltzerfall” of Kanji characters. In the present study, two experiments were carried out to examine delays in the recognition of test Kanji following 25 s of prolonged viewing of adaptation Kanji, which were comprised of either the same or different parts and structures. When the size of the adaptation Kanji was equal to that of the test Kanji, there were significant delays of more than 50 ms, both when the stimuli were of the same pattern, and when they had the same structure but different components. However, when their sizes were different, delays were found only when the test and the adaptation Kanji were of the same pattern. These results suggest that a Kanji pattern may be internally represented as a whole, independent of its size, while the processing of Kanji structure may be dependent upon its size. Prolonged viewing may produce an adaptation effect specific to such representations.
持続的注視による漢字認知の遅延 ： ゲシュタルト崩壊現象の分析
by 二瀬由理, 行場次朗
https://www.jstage.jst.go.jp/article/jjpsy1926/67/3/67_3_227/_pdf