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1 – 6 of 6The purpose of this paper is to outline an integrative, high-level, neurocomputational theory of brain function based on temporal codes, neural timing nets, and active…
Abstract
Purpose
The purpose of this paper is to outline an integrative, high-level, neurocomputational theory of brain function based on temporal codes, neural timing nets, and active regeneration of temporal patterns of spikes within recurrent neural circuits that provides a time-domain alternative to connectionist approaches.
Design/methodology/approach
This conceptual-theoretical paper draws from cybernetics, theoretical biology, neurophysiology, integrative and computational neuroscience, psychology, and consciousness studies.
Findings
The high-level functional organization of the brain involves adaptive cybernetic, goal-seeking, switching, and steering mechanisms embedded in percept-action-environment loops. The cerebral cortex is conceived as a network of reciprocally connected, re-entrant loops within which circulate neuronal signals that build up, decay, and/or actively regenerate. The basic signals themselves are temporal patterns of spikes (temporal codes), held in the spike correlation mass-statistics of both local and global neuronal ensembles. Complex temporal codes afford multidimensional vectorial representations, multiplexing of multiple signals in spike trains, broadcast strategies of neural coordination, and mutually reinforcing, autopoiesis-like dynamics. Our working hypothesis is that complex temporal codes form multidimensional vectorial representations that interact with each other such that a few basic processes and operations may account for the vast majority of both low- and high-level neural informational functions. These operational primitives include mutual amplification/inhibition of temporal pattern vectors, extraction of common signal dimensions, formation of neural assemblies that generate new temporal pattern primitive “tags” from meaningful, recurring combinations of features (perceptual symbols), active regeneration of temporal patterns, content-addressable temporal pattern memory, and long-term storage and retrieval of temporal patterns via a common synaptic and/or molecular mechanism. The result is a relatively simplified, signal-centric view of the brain that utilizes universal coding schemes and pattern-resonance processing operations. In neurophenomenal terms, waking consciousness requires regeneration and build up of temporal pattern signals in global loops, whose form determines the contents of conscious experience at any moment.
Practical implications
Understanding how brains work as informational engines has manifold long-reaching practical implications for design of autonomous, adaptive robotic systems. By proposing how new concepts might arise in brains, the theory bears potential implications for constructivist theories of mind, i.e. how observer-actors interacting with one another can self-organize and complexify.
Originality/value
The theory is highly original and heterodox in its neural coding and neurocomputational assumptions. By providing a possible alternative to standard connectionist theory of brain function, it expands the scope of thinking about how brains might work as informational systems.
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In 1974, Heinz von Foerster articulated the distinction between a first‐ and second‐order cybernetics, as, respectively, the cybernetics of observed systems and the cybernetics of…
Abstract
In 1974, Heinz von Foerster articulated the distinction between a first‐ and second‐order cybernetics, as, respectively, the cybernetics of observed systems and the cybernetics of observing systems. Von Foerster's distinction, together with his own work on the epistemology of the observer, has been enormously influential on the work of a later generation of cyberneticians. It has provided an architecture for the discipline of cybernetics, one that, in true cybernetic spirit, provides order where previously there was variety and disorder. It has provided a foundation for the research programme that is second‐order cybernetics. However, as von Foerster himself makes clear, the distinction he articulated was imminent right from the outset in the thinking of the early cyberneticians, before, even, the name of their discipline had been coined. In this paper, the author gives a brief account of the developments in cybernetics that lead to von Foerster's making his distinction. As is the way of such narratives, it is but one perspective on a complex series of events. Not only is this account a personal perspective, it also includes some recollections of events that were observed and participated in at first hand.
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This paper aims to discuss the conceptualisation, design and realisation of a robotic membrane. Presenting research taking place between the cross‐over among architecture…
Abstract
Purpose
This paper aims to discuss the conceptualisation, design and realisation of a robotic membrane. Presenting research taking place between the cross‐over among architecture, technical textiles and computer science, the paper seeks to explore the theoretical as well as the practical foundations for the making of a dynamic architecture.
Design/methodology/approach
The project employs an architectural design method developing working demonstrators. The paper asks how a material can be described through its behavioural as well as its formal properties. As new materials such as conductive and resistive fibres as well as smart memory alloys and polymers are developed, it becomes possible to create new hybrid materials that incorporate the possibility for state change.
Findings
The paper presents the first explorations into the making of architectural membranes that integrate systems for steering using traditional textile technologies. This paper presents a series of architectural investigations and models that seek to explore the conceptual, computational and the technological challenges of a robotic membrane.
Originality/value
The paper presents original thinking and technical innovation into the making of textile spaces.
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