On the relationship between algebraic systems theory and coding theory: representations of codes

AbstractAdvancements in ultra-high field (7 T and higher) magnetic resonance imaging (MRI) scanners have made it possible to investigate both the structure and function of the human brain at a sub-millimeter scale. As neuronal feedforward and feedback information arrives in different layers, sub-millimeter functional MRI has the potential to uncover information processing between cortical micro-circuits across cortical depth, i.e. laminar fMRI. For nearly all conventional fMRI analyses, the main assumption is that the relationship between local neuronal activity and the blood oxygenation level dependent (BOLD) signal adheres to the principles of linear systems theory. For laminar fMRI, however, directional blood pooling across cortical depth stemming from the anatomy of the cortical vasculature, potentially violates these linear system assumptions, thereby complicating analysis and interpretation. Here we assess whether the temporal additivity requirement of linear systems theory holds for laminar fMRI. We measured responses elicited by viewing stimuli presented for different durations and evaluated how well the responses to shorter durations predicted those elicited by longer durations. We find that BOLD response predictions are consistently good predictors for observed responses, across all cortical depths, and in all measured visual field maps (V1, V2, and V3). Our results suggest that the temporal additivity assumption for linear systems theory holds for laminar fMRI. We thus show that the temporal additivity assumption holds across cortical depth for sub-millimeter gradient-echo BOLD fMRI in early visual cortex.

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The Relationship Between the Structure of Interindividual and Intraindividual Variability: A Theoretical and Empirical Vindication of Developmental Systems Theory

Understanding Human Development ◽

10.1007/978-1-4615-0357-6_15 ◽

2003 ◽

pp. 339-360 ◽

Cited By ~ 74

Author(s):

Peter C. M. Molenaar ◽

Hilde M. Huizenga ◽

John R. Nesselroade

Keyword(s):

Systems Theory ◽

Intraindividual Variability ◽

Developmental Systems Theory ◽

Developmental Systems ◽

The Relationship

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Effect of the COVID-19 Pandemic on Consumers’ Impulse Buying: The Moderating Role of Moderate Thinking

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph182111116 ◽

2021 ◽

Vol 18 (21) ◽

pp. 11116

Author(s):

Shuyang Wang ◽

Yun Liu ◽

Yingying Du ◽

Xingyuan Wang

Keyword(s):

Systems Theory ◽

Impulse Buying ◽

Loss Of Control ◽

Buying Behavior ◽

Consumer Responses ◽

Event Systems ◽

Underlying Mechanisms ◽

The Impact ◽

The Relationship

Based on event systems theory, this study examined the impact of the COVID-19 pandemic on consumers’ impulse buying, as well as the underlying mechanisms and boundary conditions from the perspective of individual consumers. Results of three experiments (N = 437) show that, first, the COVID-19 pandemic enhanced consumers’ impulse buying behavior. Second, two key elements, loss of control and anxiety, mediated the relationship between the COVID-19 pandemic and impulse buying; and third, moderate thinking (also known as Zhong-Yong thinking) moderated the relationship between the COVID-19 pandemic and impulse buying. The findings indicate that in consumers with low moderate thinking, the COVID-19 pandemic has had a stronger effect on impulse buying and has mediated more between the loss of control and anxiety. Conversely, in consumers with high moderate thinking, COVID-19 has had a weaker effect on impulse buying and has mediated less between loss of control and anxiety. This study extends the application of event systems theory and enriches the literature on how the COVID-19 pandemic affects consumer behavior. Furthermore, it provides strategic recommendations for government and consumer responses to COVID-19 pandemic shocks.

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The Relationship between Autopoiesis Theory and Biosemiotics: On Philosophical Suppositions as Bases for a New Information Theory

tripleC Communication Capitalism & Critique Open Access Journal for a Global Sustainable Information Society ◽

10.31269/vol9iss2pp424-433 ◽

2011 ◽

Vol 9 (2) ◽

pp. 424-433

Author(s):

Yohei Nishida

Keyword(s):

Information Theory ◽

Systems Theory ◽

Unified Theory ◽

Methodological Issues ◽

Basic Principles ◽

New Information ◽

Theory Of Information ◽

The Relationship

This paper discusses methodological issues related to a possible framework for a unified theory of information. We concentrate on the relationship between systems theory and semiotics, or to put it more concretely, the relationship between autopoiesis theory and biosemiotics. These theories give rise to two decisive viewpoints on life that seem poten- tially contradictory and consequently provoke a fruitful controversy, which is conducive for the consideration of philosophical suppositions vital for a new information theory. The following three points are derived in the context of basic principles: epistemology rather than ontology, constructivism rather than metaphysics, meta-theoretical recursiveness rather than linear consistency.

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