The Architectural Basis of Affective States and Processes

Abstract

Much discussion of emotions and related topics is riddled with confusion because different authors use the key expressions with different meanings. Some confuse the concept of "emotion" with the more general concept of "affect", which covers other things besides emotions, including moods, attitudes, desires, preferences, intentions, dislikes, etc. Moreover researchers have different goals: some are concerned with understanding natural phenomena, while others are more concerned with producing useful artifacts, e.g. synthetic entertainment agents, sympathetic machine interfaces, and the like. We address this confusion by showing how "architecture-based" concepts can extend and refine our pre-theoretical concepts in ways that make them more useful both for expressing scientific questions and theories, and for specifying engineering objectives. An implication is that different information-processing architectures support different classes of emotions, different classes of consciousness, different varieties of perception, and so on. We start with high level concepts applicable to a wide variety of types of natural and artificial systems, including very simple organisms, namely concepts such as "need", "function", "information-user", "affect", "informationprocessing architecture". For more complex architectures, we offer the CogAff schema as a generic framework which distinguishes types of components that may be in a architecture, operating concurrently with different functional roles. We also sketch H-Cogaff, a richlyfeatured special case of CogAff, conjectured as a type of architecture that can explain or replicate human mental phenomena. We show how the concepts that are definable in terms of such architectures can clarify and enrich research on human emotions. If successful for the purposes of science and philosophy the architecture is also likely to be useful for engineering purposes, though many engineering goals can be achieved using shallow concepts and shallow theories, e.g., producing "believable" agents for computer entertainments. The more human-like robot emotions will emerge, as they do in humans, from the interactions of many mechanisms serving different purposes, not from a particular, dedicated "emotion mechanism".

More things than are dreamt of in your biology: Information-processing in biologically inspired robots

“…E.g. the question whether a certain animal, or robot, has emotions or is conscious or feels pain suffers from the multiple confusions in our current notion(s) of mental states and processes (Sloman, 2002a(Sloman, , 2001aSloman et al, 2004). So, in part, our task is to explain how to make those obscure concepts clearer, for instance by interpreting them as 'architecture-based' concepts (op.cit).…”

Affective computing with primary and secondary emotions in a virtual human

“…The implementation of emotion dynamics is based on the assumption that an organisms natural, homeostatic state is characterized by emotional balance, which accompanies an agent's normal level of cognitive processing (Sloman, Chrisley & Scheutz 2005). Whenever an emotionally relevant internal or external stimulus is detected, however, its valence component serves as an emotional impulse, which disturbs the homeostasis causing certain levels of Pleasure and Arousal in the emotion module.…”

Robotic Body-Mind Integration: Next Grand Challenge in Robotics

“…In this type of action-selection process, the system does not necessarily perform the same action every time for the same set of external stimuli. In ISAC's cognitive architecture, the Self Agent is responsible for metamanagement of its internal states similar to that proposed by Sloman [Sloman, et al, 2005] as shown in Figure 30. We have used the fixed, embedded emotion level as a part of the Self Agent in the experiment.…”