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Automatic Activation Of Deaf Students' Addition Algorithm

Posted on:2015-05-08Degree:MasterType:Thesis
Country:ChinaCandidate:J MeiFull Text:PDF
GTID:2207330434951478Subject:Special education
Abstract/Summary:PDF Full Text Request
Computing power is the basis of gaining mathematical knowledge, due to the limited cognitive abilities of deaf students, many deaf students have a certain mathematical difficulties. Because most deaf students to get their hearing damage caused by a certain language barriers, so the semantic knowledge have also been lacking. Due to the interaction of mathematical knowledge and semantic knowledge has an important impact on the deaf subjects and the overall development of knowledge and learning, so the mathematical knowledge and semantic knowledge of deaf students is important to study. This study aimed to explore the digital matched task of deaf is wether automatically activated, wether the consistency of semantic categories would affect addition knowledge, and addition knowledge and the relationship between the two cerebral hemispheres.This study is consists of three experiments, namely the use of digital matching task, semantic priming digital matching task, semi-vision speed notation method and digital matching task of combining, experimental paradigm, all the stimulus were presented using E-prime software, experiments included:Experiment1used digital materials to investigate whether deaf students will have "plus effect" in the process of judging, that is, whether the addition operation is automatically activated, target detection digital types include "plus" Digital, neutral digital, digital for the presentation start time includes80ms,140ms,200ms three. Experimental purposes in addition to investigate whether addition operation automatically activated in deaf students, but also studied "plus effect" in the next three to start digital rendering time whether there were significant differences between the conditions.Experiment2used Words and digital materials to inspect Impact of semantic knowledge to "plus effect" in deaf students, semantic categories including consistent and inconsistent classification categories on start word, target detection digital types include "plus" Digital, neutral Digital.The purpose of the experiments to investigate addition Knowledge affect semantic categories on the start word whether there’s a significant difference, namely, wether consistency of semantic categories affect activation addition knowledge in deaf. Experiment3investigated the advantage cerebral hemispheres by speed notation semi-vision in deaf "plus effect", the presentation vision on the starting digital includes presentation on the left side of the screen,presentation on the right side of the screen, target detection numeric types includes "plus" digital and neutral digital, starting with digital interface for target detection time interval between numbers were0,50ms,100ms. The purpose of the experiment is to investigate the relationship between the addition knowledge with two cerebral hemispheres in deaf.Comprehensive analysis of the experimental data and related discussions, the experimental study supports the following conclusions:1. Addition knowledge for deaf is automatically activated."Plus effect" is not only to produce "plus" digital activation, but also from the inhibition of neutral digital.2. Semantic knowledge and mathematical knowledge for deaf has been integrated in the cognitive processing of mathematics, and its integration is by way of analogy mapping done. Words on a consistent semantic category will promote "plus effect" produced for deaf, the word on the semantics consistent with digital on the analogy makes addition knowledge for deaf is activated, thus hindering the correct target digital from analyzing. Addition affected categories situational knowledge for deaf, semantic categories of words related to the addition operation can promote activation of knowledge.3."Plus effect" of the dominant the cerebral hemispheres for deaf is the left hemisphere, the processing of addition knowledge activate the relevant area on the left half of the brain. Through the analysis of the overall results, the nature of "plus effect" t is not only "plus" digital activation, but also from the inhibition of neutral digital.
Keywords/Search Tags:deaf stundents, addition knowledge, semantic knowledge, automaticallyactivated
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