皮肤电位活动(skin potential activity简称SPA)是人体交感神经系统机能状态及其反应性的良好指标,它与人体的精神、情绪等活动有关.以往对动物的SPA的同步对称性问题均有过不少报道,认为在正常的情况下,动物左右肢体相同部位的SPA是同步对 Skin potential activity (skin potential activity referred to as SPA) is a good indicator of human sympathetic nervous system functional status and its reactivity, it is related to the spirit of the body, emotions and other activities related to the past, SPA symmetry of the animals have had the problem Less reported, that under normal conditions, the same parts of the body around the animal SPA is synchronized