Abstract: Two experiments were carried out in this research.The first experiment,by employing length of line and acoustic frequency studied three questions :how the temporal information is processed;when the temporal information is corded;and the temporal modality effects.The second experiment repeats the procedures of experiment one by utilizing new stimulus of Chinese words.The results showed that audio-visual modality effects exist in the processing of temporal succession information,and the mechanism of modality effects is rooted in memory and is related to the processing depth of material and way of processing.There are both automatic and controlled processing in processing succession information,the visual stimulation tends to process automatically,but acoustic stimulation processes in a controlled manner,The information of temporal succession is corded while the items are studied.

Key words: temporal succession, modality effects, temporal succession cording, automatic processing, controlled processing