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ISSN : 1226-9654

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Vol.9 No.1
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The effects of conifer needle ordor and soundgurad on P200 during visuo-spatial detection tasks.

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
1997, v.9 no.1, pp.71-82
Younghwa Yoon (Korea Neuropsychological Research Institute)
Hongjae Lee (Korea University)
Sanghee Kim (Korea University)
Hyuntaek Kim (Korea University)
Yoon, Y., Lee, H., Kim, S., & Kim, H. (1997). The effects of conifer needle ordor and soundgurad on P200 during visuo-spatial detection tasks.. The Korean Journal of Cognitive and Biological Psychology, 9(1), 71-82.
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Abstract

ERP reflects activity originating within the brain. In the present study, we investigated the effects of task performance and 75dB noise on P200 as well as on behavioral performance during visuo-spatial detection tasks. The effects of conifer needle odor and soundguard on ERP and task were also investigated. The results showed that P200 mean amplitude evoked by target stimuli was larger than that by standstimuli on Fz, Cz and Pz. P200 amplitude recorded on Cz and Pz was larger than that on Fz. In no noise condition, ?200 amplitude by target stimuli on Fz, Cz was larger that by the standard stimuli in confer needle odor and soundgurard than in control condition. In noise condition, The results of P200 amplitude shows that target stimluli requires more initial information processing and attention than standard stimluli, The behavioral task performance in soundguard condition was more accurate than that in control condition. In soundguard condition, behavioral performance was increased. P200 evoked in conifer needles and soundguard were interpreted as early information processing or attention.

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The Korean Journal of Cognitive and Biological Psychology

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