FROM CHUCK TUCKER 960117.15:17.35 EST
        In answer to the same statement by Shannon:

        Rick (960115.1000) writes:

                No variable in the loop has a priviledged status
                as the cause of the behavior of any other variable
                in the loop; p is no more important as a cause of
                e than e is as a cause of p. However, there is
                only one variable in this loop that is controlled
                (brought to a particular state and maintained
                against disturbance); the perceptual variable, p.
                The loop keeps p = r. If there is no explicit
                reference, then the loop keeps p = 0.

        Then, Bill (960116.1300 MST) writes:

                I do agree that saying "behaviors exist to control
                perceptions" is somewhat fuzzy. The prime mover is
                the reference signal, not the behavior. But the
                statement does have this meaning: there is no reason
                to think that any behavior exists except as part of
                a negative feedback control system that maintains
                its perceptual input near the level specified by a
                reference signal (even if the reference signal is
                zero). The only exception to this is during
                reorganization, when behaviors may be emitted which
                do not succeed in controlling an input. But those
                behaviors soon go away.

        Of course, as an expert in PCT I'm not confused but someone who
        is learning (and, in this instance, being "corrected") might
        find these statements confusing. See what I mean?

        Regards, Chuck