Update of website

Having returned from the CNRS Summer School on Enaction, I have quickly updated the blog to reflect some of my recent activities.

Most importantly, I’ve added tentative references to two journal papers which are currently under review, namely one paper co-authored with Tom Ziemke called “Enactive Artificial Intelligence”, and another one called “Hume and the enactive approach to mind”.

Since these papers are still under review I have not provided any download options. If you would like to have a copy of the latest draft of these papers then please e-mail me.

Thanks,
Tom

Upcoming events

This is just a quick update about two upcoming events which I will be involved in. On the one hand, I will be co-organizing the Workshop on Enactive Approaches to Social Cognition which will take place next weekend in Battle, UK. And on the other hand, I will give a short presentation at this year’s Enaction Summer School in Cap Hornu, France.

The number and variety of events dealing with the framework of enactive cognitive science appears to be growing every year!

Back from Japan

I just returned from a 2 week tour through Japan. The journey started with a talk entitled “Stability of Coordination Requires Mutuality of Interaction in a Model of Embodied Agents” at the Tenth International Conference on Simulation of Adaptive Behavior in Osaka, for which the paper can be downloaded here.

After the SAB conference I participated in a Workshop on Agency in Natural and Artificial Systems organized by Ikegami, Rohde, Di Paolo and Tani in Kyoto.

Then I was invited to give a seminar at the Ikegami Lab of the University of Tokyo. I’ve posted the title and abstract below:

The Times They Are a-Changin’ – From a cognitive science of artificial intelligence toward a phenomenological pragmatics

Tom Froese
15 July 2008, Ikegami Lab, Tokyo University

From the historical point of view we can say that AI has to a large extent been the driving force for the establishment and ongoing development of the cognitive sciences, but in the recent literature you can notice a change. While AI has become more satisfied in doing its own thing and fighting its own academic battles, the big issues in the cognitive sciences have been shifting in focus. In this talk I will defend the controversial position that AI has exhausted its domain of applicability; it is not pushing the envelope any longer.

Instead, consciousness is moving center stage: the ‘hard problem’ is turning into a research program. Indeed, the competing paradigms are engaging one another in a new domain of inquiry: is our experience of the Other more like internal simulation, or a form of direction perception? Do trained subjects use a particular sensory substitution device by means of theoretical inference, or via a new perceptual modality constituted by their skillful manipulation of the device? Is the personal-level story which we are trying to explain in this manner even valid? How can we tell? To be properly grounded, such debates must eventually be informed by recourse to the evidence of lived experience. Accordingly, the necessity for developing more appropriate methods to deal with these kinds of questions will naturally continue to grow.

I will argue that these recent changes are only the tentative beginnings of a much greater scientific revolution. The shift of focus toward consciousness is a necessary consequence of the internal logic of a science which has conquered the external world, noticed the role of the observer, and is now seriously beginning to understand the conditions of possibility for its own existence. But here, at its very core, science is currently facing a void which its traditional methods cannot fill. What does it mean to be an observer? For the first time since the scientific revolution took hold of the Western imagination, we can feel a genuine need for innovative philosophers to provide the necessary foundations. Hume, Husserl and others have attempted this in their own way, but they were too early to achieve their ambitions – the sciences were not ready yet.

I think that there will be a growing need for principled first-person methods, strongly driven by the natural trajectory of further scientific development. If we rise to this historical occasion then we are in a very good position to lay the foundations for what is still to come. More generally, I would like to suggest that this movement toward a self-reflective science can be seen as an indicator of a more global shift in awareness. Indeed, it is again becoming acceptable to ask the big questions in all seriousness: What is life? What is consciousness? What is reality? I propose that we are witnessing the first signs of a radical shift in our understanding of what it means to be human. Without a doubt these are exciting times: how much uncertainty, yes, but how much freedom!

Convergence and Crossover: The Permutation Problem Revisited

Some work that I did with Emmet Spier early on during my PhD is now available as a Cognitive Science Research Paper from the Informatics Department at the University of Sussex. A copy of the paper can be downloaded here.

Convergence and Converge: The Permutation Problem Revisited

Tom Froese and Emmet Spier

Standard crossover operators are often omitted from simple genetic algorithms (GAs) used for optimizing artificial neural networks because of the traditional belief that they generally disrupt the distributed functionality of the evolving solutions. The notion that crossover will be especially disruptive when a genetic representation is used which has a many-to-one mapping between genotype and phenotype has become known as the ‘permutation problem’. In contrast, this paper argues that these problems do not normally appear in practical use of simple GAs because populations converge quickly and then continue to move through search space in this converged manner until a fitness optimum is found. After convergence all individuals are genetically similar, and moreover, distinct genetic permutations of the same phenotypic solution are unlikely to co-exist in the population. Genetic convergence thus minimizes the possibility for disruption caused by crossover. We have termed this the ‘convergence argument’. This claim is investigated experimentally on standard benchmark problems and the results provide empirical support.

Visit to SCAI Lab in Skoevde, Sweden

From the 10th-31st of May 2008 I will be in Sweden to work with Prof. Tom Ziemke at the Skoevde Cognition and Artificial Intelligence (SCAI) Lab on the topic of enactive AI.

My travel to Skoevde is covered thanks to an euCognition network action, and my stay here is kindly supported by the University of Skoevde.

Simulation of Adaptive Behavior 2008

The paper which Ezequiel and me submitted to the 10th International Conference on the Simulation of Adaptive Behavior (SAB’08) has been accepted as an oral presentation. The title and abstract of our contribution are as follows:

Stability of coordination requires mutuality of interaction in a model of embodied agents

Tom Froese & Ezequiel A. Di Paolo

Abstract. We used an evolutionary robotics methodology to generate pairs of simulated agents capable of reliably establishing and maintaining a coordination pattern under noisy conditions. The agents were only evolved for this ability and not for their capacity to detect social contingency. However, when they were made to interact with a previously recorded, successful behavioral sequence, the coordination pattern could not be maintained. An analysis of the system’s underlying dynamics revealed (i) that stability of the coordination pattern requires mutuality of interaction, and (ii) that the interaction process is not only constituted by but also constitutive of individual behavior. We suggest that such termination of interaction is a general property of a certain class of interactively coupled dynamical systems, and conclude that psychological explanations of an individual’s sensitivity to social contingency need to take into account the role of the interaction process.

Live stream from Test_Lab at V2_

My talk on the Enactive Torch which I gave at Test_Lab: Multimodal in V2_ is available online here:

Live stream

Test_Lab at V2_

I have been invited to give a talk on sensory substitution and our recent work on the Enactive Torch during the next Test_Lab on the 21st of February at V2_ in Rotterdam. I think that this will also be an excellent opportunity to introduce a broader audience to the framework of enactive cognitive science, as well as learn something about the latest developments in the arts!

Tucson 2008

The proposal me and my colleague Adam Spiers have submitted to this year’s Toward a Science of Consciousness conference in Tucson, Arizona has been accepted as a talk. The Enactive Torch is going to the States!

The title of our contribution is:

“The Enactive Torch: Promoting first-person phenomenology in the study of enactive perception”

In order to read the extended abstract of our talk please click here.

Alergic seminar

Modeling the dynamics of social cognition

Tom Froese
Alergic seminar
16 Jan. 2008

We used an evolutionary robotics methodology to generate simulated agents capable of reliably establishing and maintaining a coordination pattern under noisy conditions. The agents were only evolved for this ability and not for their capacity to detect social contingency. However, when they were made to interact with a previously recorded,successful behavioral sequence, the coordination pattern could not be maintained. An analysis of the underlying dynamics revealed (i) that stability of the coordination pattern requires mutuality of interaction, and (ii) that the interaction process is autonomous in the sense that it is not only constituted by but also constitutive of individual behavior. We hypothesize that in many cases an explanation of the breakdown of coordination does not require the postulation of an individual’s sensitivity to social contingency; it is likely a general property of a certain class of interactively coupled dynamical systems.

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