sensations
Sensation
The lower of the conscious species possess only the faculty of sensation, which is sufficient to direct their actions and provide for their needs.
A sensation is produced by the automatic reaction of a sense organ to a stimulus from the outside world; it lasts for the duration of the immediate moment, as long as the stimulus lasts and no longer.
Sensations are an automatic response, an automatic form of knowledge, which a consciousness can neither seek nor evade. An organism that possesses only the faculty of sensation is guided by the pleasure-pain mechanism of its body..."
See also