Spontaneous electrical low-frequency oscillations: a possible role in<i>Hydra</i>and all living systems

Hanson, Alison

doi:10.1098/rstb.2019.0763

Cited by 34 publications

(29 citation statements)

References 127 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The epicentre of this work is Rafael Yuste's laboratory at Columbia University, where Alison Hanson, who contributed the third contribution in this section, is a postdoctoral fellow. The focus of Hanson's article is not the activity of Hydra 's nerve net per se but, rather, spontaneous electrical low-frequency oscillations (SELFOs) detected in the organism by researchers many decades ago and confirmed again relatively recently [59]. Hanson describes what currently is known about SELFOs in Hydra , draws parallels with the mammalian default mode network, provides evidence of their presence in a wide range of diverse phyla (including unicellular organisms) and hypothesizes that SELFOs might constitute bioelectrical ‘organism organizers’ by serving as system-wide electrical information integrators.…”

Section: The Structure Of the Two Issuesmentioning

confidence: 99%

Reframing cognition: getting down to biological basics

Lyon

Keijzer

Arendt

et al. 2021

Phil. Trans. R. Soc. B

121

119

View full text Add to dashboard Cite

The premise of this two-part theme issue is simple: the cognitive sciences should join the rest of the life sciences in how they approach the quarry within their research domain. Specifically, understanding how organisms on the lower branches of the phylogenetic tree become familiar with, value and exploit elements of an ecological niche while avoiding harm can be expected to aid understanding of how organisms that evolved later (including Homo sapiens ) do the same or similar things. We call this approach basal cognition. In this introductory essay, we explain what the approach involves. Because no definition of cognition exists that reflects its biological basis, we advance a working definition that can be operationalized; introduce a behaviour-generating toolkit of capacities that comprise the function (e.g. sensing/perception, memory, valence, learning, decision making, communication), each element of which can be studied relatively independently; and identify a (necessarily incomplete) suite of common biophysical mechanisms found throughout the domains of life involved in implementing the toolkit. The articles in this collection illuminate different aspects of basal cognition across different forms of biological organization, from prokaryotes and single-celled eukaryotes—the focus of Part 1—to plants and finally to animals, without and with nervous systems, the focus of Part 2. By showcasing work in diverse, currently disconnected fields, we hope to sketch the outline of a new multidisciplinary approach for comprehending cognition, arguably the most fascinating and hard-to-fathom evolved function on this planet. Doing so has the potential to shed light on problems in a wide variety of research domains, including microbiology, immunology, zoology, biophysics, botany, developmental biology, neurobiology/science, regenerative medicine, computational biology, artificial life and synthetic bioengineering. This article is part of the theme issue ‘Basal cognition: conceptual tools and the view from the single cell’.

show abstract

Section: The Structure Of the Two Issuesmentioning

confidence: 99%

Reframing cognition: getting down to biological basics

Lyon

Keijzer

Arendt

et al. 2021

Phil. Trans. R. Soc. B

121

119

View full text Add to dashboard Cite

show abstract

“…These flexible areas appear to constitute a combination of hubs from the default mode network involved in creative and imaginative cognition (Hassabis and Maguire, 2009) and 'modeling' of self and other (Saxe et al, 2006;Davey and Harrison, 2018), frontoparietal control/attention network (Huang et al, 2020), as well as salience-determining network for high-level action selection (Rueter et al, 2018;Toschi et al, 2018). These areas appear to facilitate overall metastability in the brain (Wens et al, 2019), with analogous mechanisms being observable across a potentially surprising range of organic systems (Hanson, 2021).…”

Section: Flexibility In Brains and Mindsmentioning

confidence: 99%

On the Importance of Being Flexible: Dynamic Brain Networks and Their Potential Functional Significances

Safron

Klimaj

Hipólito

2022

Front. Syst. Neurosci.

View full text Add to dashboard Cite

In this theoretical review, we begin by discussing brains and minds from a dynamical systems perspective, and then go on to describe methods for characterizing the flexibility of dynamic networks. We discuss how varying degrees and kinds of flexibility may be adaptive (or maladaptive) in different contexts, specifically focusing on measures related to either more disjoint or cohesive dynamics. While disjointed flexibility may be useful for assessing neural entropy, cohesive flexibility may potentially serve as a proxy for self-organized criticality as a fundamental property enabling adaptive behavior in complex systems. Particular attention is given to recent studies in which flexibility methods have been used to investigate neurological and cognitive maturation, as well as the breakdown of conscious processing under varying levels of anesthesia. We further discuss how these findings and methods might be contextualized within the Free Energy Principle with respect to the fundamentals of brain organization and biological functioning more generally, and describe potential methodological advances from this paradigm. Finally, with relevance to computational psychiatry, we propose a research program for obtaining a better understanding of ways that dynamic networks may relate to different forms of psychological flexibility, which may be the single most important factor for ensuring human flourishing.

show abstract

“…These flexible areas appear to constitute a combination of hubs from default mode networks involved in creative and imaginative cognition (Hassabis & Maguire, 2009), 'modeling' of self and other (Davey & Harrison, 2018;Saxe et al, 2006), frontoparietal control/attention networks (Huang et al, 2020), as well as salience-determining networks for high-level action selection (Rueter et al, 2018;Toschi et al, 2018). These areas appear to facilitate overall brain metastability (Wens et al, 2019), with analogous mechanisms being observable across a potentially surprising range of organic systems (Hanson, 2021).…”

Section: Characterizing Flexibility In Dynamic Networkmentioning

confidence: 99%

On the importance of being flexible: dynamic brain networks and their potential functional significances

Safron¹,

Klimaj²,

Hipólito³

2021

Preprint

View full text Add to dashboard Cite

In this theoretical review, we begin by discussing brains and minds from a dynamical systems perspective, and then go on to describe methods for characterizing the flexibility of dynamic networks. We discuss how varying degrees and kinds of flexibility may be adaptive (or maladaptive) in different contexts, specifically focusing on measures related to either more disjoint or cohesive dynamics. While disjointed flexibility may be useful for assessing neural entropy, cohesive flexibility may potentially serve as a proxy for self-organized criticality as a fundamental property enabling adaptive behavior in complex systems. Particular attention is given to recent studies in which flexibility methods have been used to investigate neurological and cognitive maturation, as well as the breakdown of conscious processing under varying levels of anesthesia. We further discuss how these findings and methods might be contextualized within the Free Energy Principle as a fundamental principle of brain organization, and describe potential methodological advances from this paradigm. Finally, with relevance to computational psychiatry, we propose a research program for obtaining a better understanding of ways that dynamic networks may relate to different forms of psychological flexibility, which may be the single most important factor for ensuring human flourishing.

show abstract

Spontaneous electrical low-frequency oscillations: a possible role inHydraand all living systems

Cited by 34 publications

References 127 publications

Reframing cognition: getting down to biological basics

Reframing cognition: getting down to biological basics

On the Importance of Being Flexible: Dynamic Brain Networks and Their Potential Functional Significances

On the importance of being flexible: dynamic brain networks and their potential functional significances

Contact Info

Product

Resources

About