NDLI: Studies on cognitive and dynamic brain responses to mono-stimulation in human

Content Provider	IEEE Xplore Digital Library
Author	Yaozheng Ge Jiguang Ge Xiaohui Guo Xiaofen Hong
Copyright Year	2004
Description	Author affiliation: The State Key Lab of Fluid Power Transmission & Control, Zhejiang Univ., Hangzhou, China (Yaozheng Ge)
Abstract	Researchers have used primate animals to investigate brain functions at neuron level or even every different level and have achieved a lot progresses and results. However, none of them involved people in their entirety and few studied the dynamics of unfolding brain function as the whole under the life condition of people. Hence people still don't understand well how their cognitive process is completed. We isolated the relatively independent visual system from the complex human body and studied its linkage to cognition. Therefore, by linking stereopsis and cognition this paper studies the cognitive and dynamic response to external mono-stimuli using the electrophysiological method. Investigators directly took part in the entire experimental processes as volunteers. They were able to experience the details of complete cognitive response produced by external stimuli and sense the formation of stable cognition with robustness through personal understanding. The results showed that cognition is a dynamic process of multiple factors. In particular, a new N2 waveform of cognitive characteristics is found to respond to a single stimulus at the advance visual cortex and this N2 waveform is also verified by computing its nonlinear complexity. Differences between dynamic responses to red-blue stereogram pair (RBSGP) and black-white one luminance had response waveforms differed considerably. And the time delay of the peak-to-peak N2 wave in the cognitive dynamic response to the onset of red-blue contrast was greater than the time delay of corresponding N2 peak-to-peak in the response to black-white contrast. Furthermore, our result concurs with the latest advance by A. Anzai in the research of neuron cellar physiology.
Starting Page	4469
Ending Page	4472
File Size	716601
Page Count	4
File Format	PDF
ISBN	0780384393
DOI	10.1109/IEMBS.2004.1404242
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humans Cognition Neurons Delay effects Animals Visual system Couplings Joining processes Robustness Physiology Stereoscopic channel Dynamic response N2 waveform Computation of nonlinear complexity Stereopsis
Content Type	Text
Resource Type	Article

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