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  • 手写体文字识别的特点及神经机制

    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.

  • The effects of discourse context and world knowledge on pronoun resolution

    Subjects: Psychology >> Cognitive Psychology submitted time 2018-11-20

    Abstract: Pronoun resolution can play a vital role in narrative comprehension. Understanding nature of pronoun resolution can help us to learn more about the cognitive processes underlying comprehension. Studies have shown that comprehension processes will be interrupted when a pronoun mismatches its prior context or the gender stereotype of its antecedent. This indicates that discourse context and world knowledge about gender stereotype can play an important role in pronoun resolution. Recently, researchers tried to combine these two factors together and to examine which factor is crucial to the pronoun resolution. The most controversial issue is that whether the discourse context could override the world knowledge which was told to be wrong by the passage, and exert earlier influence on the pronoun resolution. Therefore, the present study examined the effects of context and world knowledge as well as its time course on pronoun resolution with eye tracking measures. In the Experiment 1, participants were asked to read the discourse with a personal pronoun congruent or incongruent with the gender stereotype of its antecedent, an occupation name. The results revealed that reading times (including gaze, second reading time and total reading time) increased when the gender of the pronoun mismatched with the gender stereotype of its antecedent. In the Experiment 2, another personal pronoun indicating the gender of the antecedent would be inserted into the discourse as the prior context to update the readers’ gender stereotype of the occupation name. Therefore, readers would meet two identical personal pronouns while reading the passage. The first pronoun provided the updated gender information for the second pronoun. Again, the results of the first pronoun indicated that the gender stereotype of occupation could influence pronoun processing immediately. As for the second pronoun, the complicated results showed discourse context had an early influence on resolution of pronouns, but with the processing went on, the gender stereotype of occupation continued to influence integration. However, when the first pronoun was changed into an obvious gender description in Experiment 3, the discourse context was found not only to exert an earlier effect but the effect would be continued as the only factor to influence the pronoun resolution. The current results clearly suggest that both gender stereotype and discourse context can affect the comprehension of Chinese pronouns. However, when the discourse context updates the gender stereotype of the antecedents, the updating information can override the world knowledge information to exert an earlier effect on pronoun resolution. But whether the effects will be continued depend on the strength of the discourse context. These findings provide evidence for the interactive model of sentence comprehension.

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