That's true, but somebody is closing the gap.
Here is an article "Emotions: from brain to robot"
Some robots have been given emotional expressions in an attempt to
improve human�Ccomputer interaction. In this article we analyze what it
would mean for a robot to have emotion, distinguishing emotional
expression for communication from emotion as a mechanism for the
organization of behavior. Research on the neurobiology of emotion
yields a deepening understanding of interacting brain structures and
neural mechanisms rooted in neuromodulation that underlie emotions in
other animals. However, the chemical basis of animal function differs
greatly from the mechanics and computations of current machines. We
therefore abstract from biology a functional characterization of
emotion that does not depend on physical substrate or evolutionary
history, and is broad enough to encompass the possible emotions of
The section on neurobiological roots of emotion is most interesting. I
found some points there, like the regulation of motivated behaviors,
are really close to the ideas in PCT, and am looking forward to
comments from CSG people.
2008/12/18 Richard Marken <email@example.com>:
[From Rick Marken (2008.12.17.2100)]
Dick Robertson (2008.12.17.1945CDT)--
Just catching up with reading Science News I came to an article entitled,
"Body in Mind" in SCIN Oct. 25/08. ( Bruce Bower, author). It described an
MIT team that is creating robots that learn, interact with humans and
supposedly that "cognition may actually evolve as physical experiences and
actions ignite mental life. Interestingly control theory or feedback never
crops up in the article. It is also not found in a 200+ Dissertation on the
theory behind the work.
Actually, control theory (the real thing, the kind that recognizes that it
is a perceptual signal that is controlled) never crops up much in any
discussion of robots or living systems -- except here;-)