释义 |
hypnagogic startle hypnagogic startle Sleep start Sleep disorders A sudden body jerk, observed normally at sleep onset and resulting in momentary awakeninghyp·na·gog·ic star·tle (hip'nă-goj'ik stahr'tĕl) A twitch or myoclonus that occurs when the sleeper awakes suddenly, often accompanied by a sensation of falling through space. |