Sometimes these noises are during the day in response to various stimuli, but many times they are at night when you are trying to sleep. (thesprucepets.com)
The eye response scale tests whether the eyes open in response to various stimuli. (findlaylaw.ca)
The baby depends on the oral orifice for survival and response to various stimuli such as pain, hunger, and discomfort. (intelligentmother.com)