The Experimental Research On Temporal Cognitive Mechanism In Special Children And Normal Children

Time is one of the basic forms that Substance exists. It is also the most widespread phenomenon in human daily life. The cognitive psychologists think that time is a dependent variable, and also an independent variable. Time is the most important information that is processed in human processing system. Domestic and international psychologists put forward the different biological models, cognitive models and synthesize models to explain the psychological time. Data from neural psychology and brain imaging research show that different brain area is involved in different duration range's information processing. Different cortical area and its sub-cortical may involve in different mechanisms of temporal information processing. The auditory-visual modality effect of temporal perception means that for the same physics time, auditory estimation is more accurate than visual's. Some psychologists hold that it will be beneficial to understand the mechanism in human information processing if doing deep research into this problem. For a long time, data from experiments of auditory-visual modality effect is inconsistent, and its theoretical explanations also are controversial. One point of view is that the main reason of modality effect is the different characteristics and abilities of auditory and visual storage. While another point of view is that there is a unifying, integrate mechanism to handle with information from each modality in the information processing system. Former temporal perception research used normal subjects, less to use deaf and blind children as subjects in series experiment of temporal information processing. That is a disadvantage in finding out the relationship between the different auditory-visual experiences deprivation, or auditory-visual modality obstacle and the temporal perception. It's more disadvantageous in investigating the characteristics and regulation of the temporal perception ability in the deaf and the blind.This research aims at (1) studying in the influence of auditory-visual experience deprivation on time perception in abnormal children, (2) inferring the temporal information processing mechanism and strategies they use; (3) studying the relationship between auditory-visual experience deprivation and modality effect by experimental research on temporal information processing in the normal and special children; and (4) discovering the advantage and the disadvantage on perception ability in special children, in order to diagnosis, cure and train their perception ability.Using eight serial experiments, we studied the characteristics of temporal information processing within 30 seconds in special children and normal children. We investigated the possible influence of audio-visual experience deprivation on temporal perception. By analyzing and discussing the experimental findings, we concluded that:1 Hearing obstacle or hearing deprivation has the negative influence on estimation of duration and serial recalling in the deaf. From the view of compensatory, how to increase the temporal perception ability from other path that information processed in deaf is a problem which needs research and diligent solution in special education.