an acquired response that is under the control of (conditional on the occurrence of) a stimulus

an acquired response that is under the control of (conditional on the occurrence of) a stimulus

an acquired response that is under the control of (conditional on the occurrence of) a stimulus

the occurrence of an abrupt, transient loss or impairment of consciousness (which is not subsequently remembered), sometimes with light twitching, fluttering eyelids, etc.; common in petit mal epilepsy