What was aristotle’s theory of matter? was it atomistic or formal?

Aristotle's theory of matter states that every physical object has matter and form. Aristotle posited that matter is formed into the substance it is by the form in which it appears. He also states that every material thing has form. Aristotle's theory is formal and not atomistic. Atomistic theory states that all matter is composes of small indivisible particles. 

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later