Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： There is a great difference between the recognition process of handwritten words and printed words. Compared with the printed words, the recognition of handwritten characters is more influenced by text material. The factors related to the text material include physical structural characteristics of the text, the character characteristics, and the writing style. Research on the neural mechanisms found that the brain regions under recognizing handwritten character is different from those under recognizing printed words. The activation brain area of recognizing handwritten words include the occipital lobe and lateral frontal and parietal lobes, which is the same as those of recognizing the printed words; and also include the left posterior motor cortex, the lateral prefrontal cortex and the posterior parietal cortex, which is different from those of recognizing the printed words. Handwritten word processing involves both holistic processing and feature processing. The future research should further explore around two aspects. The first is how the brain extracts the target words from the noisy visual information when we recognize the handwritten words. The second is to consider building a theoretical model of handwritten character recognition to explain the recognition process of the handwritten characters more efficiently.
Subjects: Psychology >> Cognitive Psychology submitted time 2018-04-18 Cooperative journals: 《心理学报》
Abstract： In the process of word recognition, the encoding of letter identity and letter location information plays a vital role. Many English studies found that the letter location information is more flexible than letter identity information. And context predictability has a different effect on letter location and identity information. Chinese word consists of meaningful morpheme, so the encoding of Chinese character identity and location information may have different features from English letter. In present study, we discussed the effect and the time course of predictability on the encoding of Chinese character identity and location information. In order to explore the morpheme processing, the present study recruited 20 students as participants in experiment 1, and instructed them to do the lexical decision task. We used 5 types of word (original word, transposed non-word, initial substituted non-word, final substituted non-word and unmeaning symbol) as prime words when the prime time is 80ms, 150ms and 300ms. We collected reaction time as the index. We found that the effect caused by transposed non-word is significant from that caused by original word under 80ms and 300ms prime condition, but it is opposite under 150ms condition. To study the morpheme processing in sentence, 50 participants took part in experiment 2, and was instructed to read high predictability and low predictability sentences. Each sentence included a different target word of 4 conditions which is original word(OR), transposed non-word (TN), first substituted (FS) non-word and end substituted (ES) non-word. The participation’s eye movement was recorded by EyeLink1000 during reading process. The results showed that the TN condition is not significant with FS and ES condition under high-predictability, but it is opposite under low-predictability. To explore the time course of encoding of Chinese character location and identity information, we used the same materials as experiment 2 and manipulated parafoveal target word delay time for 0ms, 50ms and 100ms. We found that TN condition and OR condition are quite similar when the previewing is 0ms, and the TN condition is analogy with FS and ES condition when the previewing is 50ms and 100ms. On the whole, the data of the present study suggested that the encoding of Chinese character identity information and location information are separated. When Chinese words presented alone, the effect of location information is gradually reduced with the processing time increase. In sentence reading, location information is more flexible at the early stage in parafoveal processing. High predictability can promote the encoding of location information at early stage, and promote the encoding of identity information at later stage.
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