Where does sensory input come from?

Sensory input comes from the environment and from within the body. Environmental input includes stimuli such as light, sound, touch, and smell. Internal input includes stimuli such as hunger, thirst, and pain.

Sensory input is detected by sensory receptors, which are specialized cells or organs that convert stimuli into electrical signals that can be interpreted by the brain. Sensory receptors are located in various parts of the body, including the skin, eyes, ears, nose, and tongue.

The brain processes sensory input to create perceptions of the world around us. These perceptions are used to guide our behavior, make decisions, and learn new things.