Individual or groups of neurons that code perceptually significant stimuli are called feature detectors. With feature detectors, the nervous system is able to organize and sift complex stimuli to isolate and focus on relevant cues to be associated with significant objects or organisms, rather than irrelevant background.
Feature detection is a term used to describe a process of the nervous system responsible for classifying natural stimuli that are capable of stimulating specific behaviors around the environment or objects important to the body. A feature detection is a neuron that perceives and encodes these stimuli that are meaningful to a person. In other words, we can say that they are neurons that respond to specific types of lines.
