Linguistics, one of the richest disciplines of Cognitive Science, is the scientific study of Human Language. Human Language is one of the most complex and multi-layered cognitive abilities of the human mind, that interacts with other cognitive systems such as perception (hearing, vision, etc.), motor control, memory, and various systems of thought (e.g. concept formation, problem solving, etc.) in extremely intricate ways.
This cognitive ability is what affords humans to speak and understand natural language and together with other faculties of the mind affords humans the ability to achieve levels of abstract thinking as well as social organization that are unprecedented in the animal kingdom. Language is therefore one of the most characteristic features of the human species and its study is centrally important to understanding what it is to be human.