Hypodermic Needle Theory

This theory proposes that the mass media could influence a very large group of people directly by ‘injecting’ them with appropriate messages designed to trigger a desired response.Both images used to express this theory (a bullet and a needle) suggest a direct flow of information from the sender to the receiver. the media injecting  us with opinions and we cant do anything too as a source of information will eventually get to us even if its though different sources.