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Articles 181 - 210 of 563
Full-Text Articles in Neuroscience and Neurobiology
Social Cognition In Sheep: Welfare Implications, Keith M. Kendrick
Social Cognition In Sheep: Welfare Implications, Keith M. Kendrick
Animal Sentience
More research has been carried out on social cognition in sheep than in other farm animal species. Although this has often been featured widely in the media, there is still limited public awareness of it. Marino & Merskin’s review is therefore both important and timely. In my commentary, I focus primarily on what has been established about the complexity of sheep social cognition, at the level of both brain and behavior, and on some of these findings for sheep welfare.
Animal Sentience Is Not Enough To Motivate Conservation, Irene M. Pepperberg
Animal Sentience Is Not Enough To Motivate Conservation, Irene M. Pepperberg
Animal Sentience
Chapman & Huffman suggest that humans’ views of their own superiority are a source of their callousness toward the environment. I do not disagree but point to a number of other issues that must be addressed for conservation efforts to succeed.
Anthropocentrism: Practical Remedies Needed, Helen Kopnina
Anthropocentrism: Practical Remedies Needed, Helen Kopnina
Animal Sentience
It is true that one of the harmful consequences of creating categories where one group is unique and superior to others is that it justifies discriminating against the inferior groups. And outright abuse of nonhuman animals is indeed morally unjustifiable. But what is to be done about it?
Our Brains Make Us Out To Be Unique In Ways We Are Not, Matthew J. Criscione, Julian Paul Keenan
Our Brains Make Us Out To Be Unique In Ways We Are Not, Matthew J. Criscione, Julian Paul Keenan
Animal Sentience
Humans have long viewed themselves in a favorable light. This bias is consistent with a general pattern of self-enhancement. Neural systems in the medial prefrontal cortex underlie this way of thinking, which, even when false, may be beneficial for survival. It is hence not surprising that we often disregard contrary evidence in believing ourselves superior.
Superior Or Inferior, Human Uniqueness Is Manifold, Scott Atran
Superior Or Inferior, Human Uniqueness Is Manifold, Scott Atran
Animal Sentience
Chapman & Huffman (C & H) contend that, as with all biological traits, there is evolutionary continuity underlying cognitive and social traits previously thought to be unique to humans. Yet C & H, like Darwin, appeal to a seemingly unique moral aptitude that enables humans to be kind to conspecific strangers and other species.
Why Cod Don't Like To Sunbathe: Quantity And Quality In The Animal Kingdom, Christoph Jung
Why Cod Don't Like To Sunbathe: Quantity And Quality In The Animal Kingdom, Christoph Jung
Animal Sentience
The difference between a cod and a lizard is not just a quantitative one. The recognition of qualitative differences between species does not imply a moral ranking. Our species’ special abilities to shape the earth mean we have a special responsibility for ensuring a liveable future for all organisms, human and non-human.
Global Consciousness: A Functionalist Neurophilosophical Perspective, Connor C. Bowen
Global Consciousness: A Functionalist Neurophilosophical Perspective, Connor C. Bowen
CMC Senior Theses
The purpose of this thesis is to explore a thought-provoking consequence of the functionalist theory of mind. Given the current organizational structure of Earth and field theories of consciousness in neuroscience, Earth is probably conscious. The argument is explored through an examination of the current organizational structure of Earth and field theories of consciousness in neuroscience, which leads to the conclusion that Earth is conscious. Various theories of mind have been proposed by neuroscientists and philosophers alike in an attempt to qualify what consciousness is and what provides the basis for consciousness to occur. Support, in the form of data …
What Is In An Octopus's Mind?, Jennifer Mather
What Is In An Octopus's Mind?, Jennifer Mather
Animal Sentience
It is difficult to imagine what an animal as different from us as the octopus ‘thinks’, but we can make some progress. In the Umwelt or perceptual world of an octopus, what the lateralized monocular eyes perceive is not color but the plane of polarization of light. Information is processed by a bilateral brain but manipulation is done by a radially symmetrical set of eight arms. Octopuses do not self-monitor by vision. Their skin pattern system, used for excellent camouflage, is open loop. The output of the motor system of the eight arms is organized at several levels — brain, …
Octopus Umwelt Or Umwelten?, Luis H. Favela
Octopus Umwelt Or Umwelten?, Luis H. Favela
Animal Sentience
Even if its intelligent behaviors are the product of decentralized control systems, Mather argues that the octopus has an “Umwelt,” and, thus, a mind. I argue that Umwelt does not provide a conceptual basis for understanding the octopus as having a mind. First, Umwelt does not refer only to an organism’s perceptual abilities. Second, in providing evidence for decentralized control systems that underlie intelligent behaviors, Mather makes a case against an octopus Umwelt. Instead, the octopus is more akin to a collection of systems, or Umwelten, than a single system with an Umwelt.
Who Needs A Mind When You Have Thousands Of Fingers?, Yoram Gutfreund
Who Needs A Mind When You Have Thousands Of Fingers?, Yoram Gutfreund
Animal Sentience
Mather’s target article aligns with a common tendency of granting the octopus a mind or consciousness. But what is the meaning of an octopus’s mind? Is it part of nature or is it observer-dependent, imputed to satisfy our own psychological needs? In this commentary, I build on my own experience with octopuses to challenge the notion that we can conclusively attribute a mind to an animal; and I question the scientific usefulness of doing so.
A Community Of Minds, Bennett L. Schwartz
A Community Of Minds, Bennett L. Schwartz
Animal Sentience
Mather (2019) provides an excellent overview of the literature on octopus perception, cognition, memory, and behavior. Anyone interested in cephalopod cognition and brain organization will find her target article informative and interesting. In this commentary, I challenge the idea that an individual organism must have an individual mind. Given the structure of the octopus brain and their complex behavior, one must consider the possibility that an octopus is a community of minds rather than a single mind.
What Is Good For An Octopus?, Heather Browning
What Is Good For An Octopus?, Heather Browning
Animal Sentience
Mather (2019) has brought together the current empirical research in support of the claim that octopuses possess minds; and the weight of the evidence does appear to support octopus sentience. Being sentient means an organism has welfare concerns, a subjective experience of life that can go well or poorly. Protecting welfare requires knowing what conditions will have a positive or negative impact. Understanding what is in the mind of an octopus will give us valuable insight into what is good for an octopus.
Are Octopuses Special? Mind, Sociality And Life History, Phyllis C. Lee
Are Octopuses Special? Mind, Sociality And Life History, Phyllis C. Lee
Animal Sentience
Understanding the Umwelt or being-ness of an octopus is a fascinating problem. Mather’s review provides us with significant insights into the ways of living of non-humans that exploit a perceptual and physical world we can only guess at. Octopus “distributed minds” call into question our primate-based understandings of the importance of sociality and the pace of life in the evolution of complex perceptual and behavioural abilities.
Are Our Ideas About Octopus Life Too Anthropomorphic To Help?, Kenneth J. Aitken
Are Our Ideas About Octopus Life Too Anthropomorphic To Help?, Kenneth J. Aitken
Animal Sentience
Our understanding of the evolution and ontogeny of the octopus and its behavioral repertoire in its natural habitat remains rudimentary at best. There are many parallels, but also just as many differences from our models of human biology and ontogeny, making anthropocentric generalizations of limited use in explanation.
A Behavior-Analytic Approach To Understanding Octopus “Mind”, Lindsay R. Mehrkam
A Behavior-Analytic Approach To Understanding Octopus “Mind”, Lindsay R. Mehrkam
Animal Sentience
Mather makes a convincing case for octopus sentience based on a lot of evidence of their complex learning capabilities. It should follow from Mather’s findings that these intelligent invertebrates are worthy of welfare considerations, just as vertebrate species with similar capabilities are. I provide a complementary environment-behavior analysis of how we might understand the world of the octopus more straightforwardly, borrowing from Mather’s examples, to show how to promote opportunities for complex learning and species-typical behaviors in the octopus.
Cephalopod Molluscs, Causal Models, And Curious Minds, Andrew W. Corcoran
Cephalopod Molluscs, Causal Models, And Curious Minds, Andrew W. Corcoran
Animal Sentience
Mather (2019) presents a compelling case in favour of octopus mind. Surveying an impressive array of empirical literature, she identifies the creature’s playful, inquisitive behaviour as emblematic of a distinctively mental form of agency. I offer an alternative perspective in which curiosity and play are construed as constitutive processes in the emergence of the (predictive) mind.
Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino
Octopus Minds Must Lead To Octopus Ethics, Barbara J. King, Lori Marino
Animal Sentience
Mather argues convincingly for the existence of minds in octopuses based largely on laboratory experiments. Many of these experiments are highly invasive and involve mutilation and death. Moreover, octopuses are now being hailed as a “new model” for biological research and are being enthusiastically bred in captivity, both for research and for food. We argue that the compelling evidence for mind in octopuses must be accompanied by intense scrutiny of the ethics that shape how we treat them and that the intrinsic value of their individual lives must be recognized.
‘Mind’ Is An Ill-Defined Concept: Considerations For Future Cephalopod Research, Alexandra Schnell, Giorgio Vallortigara
‘Mind’ Is An Ill-Defined Concept: Considerations For Future Cephalopod Research, Alexandra Schnell, Giorgio Vallortigara
Animal Sentience
Scientific discussions about the ‘mind’ of an octopus are empirically vacuous and should be confined to folk psychology. This form of labelling is unhelpful for science and should be replaced by specific mechanistic accounts of behavior and associated neural structures, which are amenable to rigorous scientific investigation. Mather provides a detailed review of octopus behavior, but rather than making unquantifiable assumptions about what orchestrates octopus behavior, efforts should focus on investigating cognitive mechanisms that can be measured. In this commentary, we outline two lines of research that include quantifiable methods to facilitate a more robust understanding of cephalopod behaviors and …
Octopus Experience, Peter Godfrey-Smith
Octopus Experience, Peter Godfrey-Smith
Animal Sentience
The first part of this commentary attempts to get "inside" the octopus mind a little further than Mather does, drawing on her description of octopus cognition in many places but diverging in others. The second part outlines other disagreements with her account of the animals, especially in the area of social behavior.
The Octopus Mind And The Argument Against Farming It, Jennifer Jacquet, Becca Franks, Peter Godfrey-Smith
The Octopus Mind And The Argument Against Farming It, Jennifer Jacquet, Becca Franks, Peter Godfrey-Smith
Animal Sentience
Mather is convincing about octopuses having ‘a controlling mind, motivated to gather information,’ but stops short of asking what having that mind means for octopus moral standing. One consequence of understanding the octopus mind should be a refusal to subject octopuses to mass production. Octopus farming is in an experimental phase and supported by various countries. We argue that it is unethical because of concerns about animal welfare as well as environmental impacts.
Octopus Intelligence: The Importance Of Being Agnostic, Piero Amodio
Octopus Intelligence: The Importance Of Being Agnostic, Piero Amodio
Animal Sentience
Mather’s (2019) provocative claim that octopuses have a mind hinges on the inference that their striking behavioural flexibility is evidence of “complex” cognitive abilities. I discuss alternative explanations — not to deny the possibility of complexity but to point out that current evidence does not allow us to draw firm conclusions. Only an agnostic approach will lead to the systematic investigation of octopus behaviour and ultimately, greater insights into the cognitive capacities of these fascinating creatures.
Keeping Hold Of Nurse, Andrew Packard
Keeping Hold Of Nurse, Andrew Packard
Animal Sentience
Mather draws from a lifetime devoted to studying individual octopuses in the wild and in aquaria to combine a natural history account of their actions with an argument from design adopted from second-, often third-hand sources. The 'distributed' [decentralised] nervous system said to contrast with that of vertebrates – a premise largely accepted by Mather’s commentators so far – does not reflect the original literature on motor control, nor the facts of comparative anatomy, functional morphology and morphogenesis. Ontogeny is absent. With the help of some old or little-known illustrations from my own participant-observer experimental investigations, I will try here …
What We Don't Know About Cephalopods And How To Define It, Catia Correia Caeiro
What We Don't Know About Cephalopods And How To Define It, Catia Correia Caeiro
Animal Sentience
Despite the reputation of octopuses as intelligent animals, their cognitive abilities seem to be mostly unknown. This should be the starting point of a long process of scientific enquiry about these taxa, which must include discussions on operational definitions first and foremost. Discussing octopus mind might prove fruitless without more basic concepts. Some approaches are suggested here.
Octopus: Multiple Minds Or Just A Slow Thinker?, Shelley A. Adamo
Octopus: Multiple Minds Or Just A Slow Thinker?, Shelley A. Adamo
Animal Sentience
An octopus has more neurons in their peripheral nervous system (PNS) than in their brain. PNS neurons could participate in forming cognitive networks with the central brain in the same way that the cerebellum is now thought to contribute to mammalian cognition. However, cephalopods lack myelinated fibres, which might decrease the ability of the PNS to participate in cognitive networks. The lack of myelinated fibres may also select for a less integrated brain, with an increased emphasis on local information processing. Alternatively, integration may still occur across distant neural centers, but proceed more slowly in cephalopods than in mammals.
Octopus Sentience: Three Criteria, Alix Noël-Guéry
Octopus Sentience: Three Criteria, Alix Noël-Guéry
Animal Sentience
The first question to ask is whether octopuses are sentient, so that, if so, they can be protected. Three consensual criteria to evaluate animal sentience can be applied to the octopus. Octopuses meet all three of them.
What And Where Is An Octopus’S Mind?, Jennifer A. Mather
What And Where Is An Octopus’S Mind?, Jennifer A. Mather
Animal Sentience
It is gratifying to see the thorough discussion of whether octopuses have a mind, though perhaps a mind that is different from those of “higher” vertebrates. It stimulates us to look at the welfare of these animals and challenges us to find better ways to test mindfulness and cognition across animals with widely differing natural histories and sensory and motor capacities.
Developmental Aspects Of Capacities, Karen Bartsch
Developmental Aspects Of Capacities, Karen Bartsch
Animal Sentience
Chapman & Huffman suggest that judgments of human superiority underlie our cruelty to animals. It might be useful to examine how such judgments operate within the human community. Children arguably have a potential for developing “superior” capacities but are outperformed on many tasks by animals. There is a continuum of development in children’s capacities. Perhaps there are interspecies evolutionary continua too. This highlights the complexity of reasoning about humans, animals, and moral inclusion.
More Evidence Of Complex Cognition In Nonhuman Species, Lesley J. Rogers
More Evidence Of Complex Cognition In Nonhuman Species, Lesley J. Rogers
Animal Sentience
Chapman & Huffman have highlighted observations of animals performing, in nature, complex behaviour once thought to be unique to humans. Just as relevant to their argument are examples of cognition shown by domesticated species tested in controlled conditions. These strengthen the case for human/nonhuman similarities in behaviour and cognition. Recent research has brought to our attention the ability of nonhuman species to perform many tasks previously considered to be the hallmark of humans. Even though different species may use different ways of solving these tasks, the very fact that they can do it undermines the notion of human superiority.
Unique In Degree Not Kindness, Jennifer Vonk
Unique In Degree Not Kindness, Jennifer Vonk
Animal Sentience
Humans are certainly unique among living species. This is evident in the transformation of human environments and its resulting impact on other animals. However, many of the traits unique to humans are costly as well as adaptive and should certainly not be used to elevate their status above that of other species.
Non-Human Animals Providing Rescue In Medical Emergencies, Rainer Spiegel
Non-Human Animals Providing Rescue In Medical Emergencies, Rainer Spiegel
Animal Sentience
In their target article, Chapman & Huffman challenge the quotation of Sir William Osler that the desire to take medication distinguishes humans from non-human animals. They provide examples of self-medication in non-human animals. Based on these examples, it can be inferred that non-human animals practice at least some form of medicine for symptom control. I would like to extend this view by showing that non-human animals not only provide self-medication, but also rescue others facing emergencies.