As you walk barefoot in the park, your nose conveys to your brain the smell of the freshly cut grass, your skin sends information about the feel of the gentle breeze, and your ears transmit the sound of children laughing on the playground to your auditory cortex. This process of acquiring "raw data" about the stimuli in the environment is called .

Sensation

Explanation: Sensation could be defined as an individual's mental ability to notice or detect an external or internal stimulation of the sensory organs. The basic sensory organs which includes the skin, nose, eyes, ear and tongue receives external stimulus, which is then transduced or converted into electrical impulses which travels to the appropriate part of the brain for decoding.

In the scenario above, the nose, skin and ear receives external stimulus or 'raw data' which is converted into electrical impulses and transmitted to the brain for decoding.