Final answer:
Sensation or reception is the simple awareness due to the stimulation of a sense organ. It is the initial step in the process of perception, where the brain interprets the sensory information received from the sense organs.
Step-by-step explanation:
The simple awareness due to the stimulation of a sense organ is called sensation or reception. Sensation is the process by which sensory receptors detect and respond to sensory stimuli, such as light, sound, taste, touch, and smell. It is the initial step in the process of perception, where the brain interprets the sensory information received from the sense organs.