临床正常犬的视觉诱发电位

Visual evoked potentials in the clinically normal dog.

作者信息

Strain G M, Jackson R M, Tedford B L

机构信息

Department of Veterinary Physiology, Pharmacology, and Toxicology, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803-8420.

出版信息

J Vet Intern Med. 1990 Jul-Aug;4(4):222-5. doi: 10.1111/j.1939-1676.1990.tb00901.x.

DOI:10.1111/j.1939-1676.1990.tb00901.x

PMID:2401969

Abstract

Visual evoked potentials (VEP) in response to flashes of white light were recorded from 15 adult beagles of both sexes to provide a normative data base. Separate recordings were taken by stimulating each eye of every dog. Responses were recorded from a needle electrode placed over the nuchal crest referenced to an electrode just caudal to the eyes. Five positive and negative peaks were present in each VEP; P1, N1, P2, N2, and P3. Peak P2 was the most prominent. Mean (+/- standard deviation [SD]) latencies for peaks P1, N1, P2, N2, and P3 were 14.3 +/- 2.4, 29.2 +/- 2.2, 54.5 +/- 7.4, 78.0 +/- 13.1, and 98.1 +/- 12.6 msec, respectively. Peak-to-peak mean amplitudes ranged from 5.88 to 13.30 microV. Recordings were accomplished without sedation, anesthesia, or mydriatic drugs.

摘要

记录了15只成年雌雄比格犬对白光闪烁的视觉诱发电位（VEP），以提供一个正常数据库。通过刺激每只狗的每只眼睛进行单独记录。从置于颈嵴上方的针电极记录反应，参考电极置于眼睛正后方。每个VEP中有五个正峰和负峰；P1、N1、P2、N2和P3。峰P2最突出。峰P1、N1、P2、N2和P3的平均（±标准差[SD]）潜伏期分别为14.3±2.4、29.2±2.2、54.5±7.4、78.0±13.1和98.1±12.6毫秒。峰峰值平均振幅范围为5.88至13.30微伏。记录过程中未使用镇静剂、麻醉剂或散瞳药物。