The Korean Journal of Physiology and Pharmacology
- 제4권1호
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- Pages.15-24
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- 2000
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- 1226-4512(pISSN)
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- 2093-3827(eISSN)
Responses of Dorsal Horn Neurons to Peripheral Chemical Stimulation in the Spinal Cord of Anesthetized Cats
- Jung, Sung-Jun (Department of Physiology, Dankook University College of Medicine) ;
- Park, Joo-Min (Department of Physiology & Biophysics, Seoul National University College of Midicine) ;
- Lee, Joon-Ho (Department of Physiology & Biophysics, Seoul National University College of Midicine) ;
- Lee, Ji-Hye (Department of Physiology & Biophysics, Seoul National University College of Midicine) ;
- Eun, Su-Yong (Department of Physiology & Biophysics, Seoul National University College of Midicine) ;
- Kim, Sang-Jeong (Department of Physiology, Kangwon University College of Midicine) ;
- Lim, Won-Il (Department of Physiology & Biophysics, Seoul National University College of Midicine) ;
- Cho, Sun-Hee (Department of Physiology, Ewha University College of Medicine) ;
- Kim, Jun (Department of Physiology & Biophysics, Seoul National University College of Midicine)
- 발행 : 2000.02.21
초록
Although nociceptive informations are thought to be processed via different neural mechanisms depending on the types of stimuli, sufficient data have not been accumulated yet. We performed a series of experiments to elucidate the possible neural mechanisms as to chemical stimuli such as formalin, capsaicin and ATP. Single unit activity of wide dynamic range (WDR) neurons and high threshold cells were recorded extracellularly from the lumbosacral enlargement of cat spinal cord before and after chemical stimulation to its receptive field (RF). Each chemical substance - formalin