What did the photoelectric experiment demonstrate? A. Light can cause electrons to be released from the surface of a
metal.

B. Light can deposit electrons on a metal surface.

C. Light can make metal atoms move around, producing electricity.

D. Light can heat metal enough to produce electricity.

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