Final answer:
Reception is the first part of the perception process where we focus on incoming sensory information.
Step-by-step explanation:
The first part of the perception process in which we focus our attention on certain incoming sensory information is reception. This step involves the activation of sensory receptors by stimuli, such as mechanical stimuli, chemicals, or temperature. Sensory receptors can respond to stimuli within their receptive fields, which vary depending on the sense. For example, touch receptors require physical contact, while vision receptors can perceive light from stars at great distances. This initial reception of sensory information is crucial for further processing and interpretation.