Corollary discharge signals play a major role in the interpretation of sensory information. It can also be said that corollary discharge signals themselves can function as a sort of internal input. This concept can explain why no two individuals can ever have the exact same experience. Since every person's nervous system is different, the corollary discharge signals generated amongst the different CPGs will also be different. Therefore, even if two individuals are put into the same environment, their interpre- tation of that environment will differ. This brings forth the interesting question of what reality actually is. Since reality is subject to interpretation, can we then even say that a reality exists? Due to the fact that at a given time, every person will be transmitting different corollary discharge signals, it should be the case that every person's interpretation of a particular object should be unique in some way. So maybe the reason why many of us can agree on the identity of particular objects is because of the similarities (more or less) in corollary dis- charge signals or sequences of corollary discharge signals. It should follow that if the corollary discharge signals in an individual are very abnormal, then that person's view of reality should be very distorted. My question is- is there such a disorder?

The importance of corollary discharge signals also lies in the fact that they form a set of expectations which are used as a framework for the interpretation of sensory information. When these expectations lead a person to interpret one thing, when in actuality it is really something else, then their is a discrepancy between the expectations held by corollary discharge signals and the sensory input. This sort of discrepancy can explain the existance of otherwise seemingly peculiar behavior such as motion sickness.Therefore, broadly speaking, the concept of corollary discharge signals can be used to explain the existence of certain behaviors and to explain the variance in the expression of behaviors among people.

Wonderful set of issues/question. A disorder with severe distortion of reality? Schizophrenia perhaps? Reality? Maybe that which lots of different people agree on despite variations in CD's? And may also be true that CD's reflect experience, so mismatches between expectation and input might lead to discomfort and modification of CD's? Which would in turn make the expectations closer to "reality"? PG