From the Foreword:
"In this book Joscha Bach introduces Dietrich Dorner's PSI
architecture and Joscha's implementation of the MicroPSI
architecture. These architectures and their implementation have
several lessons for other architectures and models. Most notably,
the PSI architecture includes drives and thus directly addresses
questions of emotional behavior. An architecture including drives
helps clarify how emotions could arise. It also changes the way
that the architecture works on a fundamental level, providing an
architecture more suited for behaving autonomously in a simulated
world. PSI includes three types of drives, physiological (e.g.,
hunger), social (i.e., affiliation needs), and cognitive (i.e.,
reduction of uncertainty and expression of competency). These
drives routinely influence goal formation and knowledge selection
and application. The resulting architecture generates new kinds of
behaviors, including context dependent memories, socially motivated
behavior, and internally motivated task switching. This
architecture illustrates how emotions and physical drives can be
included in an embodied cognitive architecture.
The PSI architecture, while including perceptual, motor, learning,
and cognitive processing components, also includes several novel
knowledge representations: temporal structures, spatial memories,
and several new information processing mechanisms and behaviors,
including progress through types of knowledge sources when problem
solving (the Rasmussen ladder), and knowledge-based hierarchical
active vision. These mechanisms and representations suggest ways
for making other architectures more realistic, more accurate, and
easier to use.
The architecture is demonstrated in the Island simulated
environment. While it may look like a simple game, it was carefully
designed to allow multiple tasks to be pursued and provides ways to
satisfy the multiple drives. It would be useful in its own right
for developing other architectures interested in multi-tasking,
long-term learning, social interaction, embodied architectures, and
related aspects of behavior that arise in a complex but tractable
real-time environment.
The resulting models are not presented as validated cognitive
models, but as theoretical explorations in the space of
architectures for generating behavior. The sweep of the
architecture can thus be larger-it presents a new cognitive
architecture attempting to provide a unified theory of cognition.
It attempts to cover perhaps the largest number of phenomena to
date. This is not a typical cognitive modeling work, but one that I
believe that we can learn much from."
--Frank E. Ritter, Series Editor
Although computational models of cognition have become very
popular, these models are relatively limited in their coverage of
cognition-- they usually only emphasize problem solving and
reasoning, or treat perception and motivation as isolated modules.
The first architecture to cover cognition more broadly is PSI
theory, developed by Dietrich Dorner. By integrating motivation and
emotion with perception and reasoning, and including grounded
neuro-symbolic representations, PSI contributes significantly to an
integrated understanding of the mind. It provides a conceptual
framework that highlights the relationships between perception and
memory, language and mental representation, reasoning and
motivation, emotion and cognition, autonomy and social behavior. It
is, however, unfortunate that PSI's origin in psychology, its
methodology, and its lack of documentation have limited its impact.
The proposed book adapts Psi theory to cognitive science and
artificial intelligence, by elucidating both its theoretical and
technical frameworks, and clarifying its contribution to how we
have come to understand cognition."
General
Imprint: |
Oxford UniversityPress
|
Country of origin: |
United States |
Series: |
Oxford Series on Cognitive Models and Architectures |
Release date: |
April 2009 |
First published: |
April 2009 |
Authors: |
Joscha Bach
|
Dimensions: |
242 x 165 x 27mm (L x W x T) |
Format: |
Hardcover
|
Pages: |
400 |
ISBN-13: |
978-0-19-537067-6 |
Categories: |
Books >
Social sciences >
Psychology >
Cognition & cognitive psychology >
General
|
LSN: |
0-19-537067-8 |
Barcode: |
9780195370676 |
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