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Articles 451 - 480 of 541

Full-Text Articles in Cognition and Perception

On The Significance Of Psychodynamic Discourse For The Field Of Consciousness Studies, Robin S. Brown Mar 2016

On The Significance Of Psychodynamic Discourse For The Field Of Consciousness Studies, Robin S. Brown

CONSCIOUSNESS: Ideas and Research for the Twenty-First Century

Despite the obvious confluence of concerns between psychodynamic psychology and the emerging field of consciousness studies, the extent to which psychodynamic thinking has factored into the consciousness literature has been limited. With widespread interest in “the unconscious” having significantly diminished, the present paper asks what might be implied in the shift towards the notion of “consciousness”—what about this cross-disciplinary designation has come to attract attention not only within the academic world, but also in the popular press? That the term does indeed invite contributions from a variety of disciplines makes the field both a meeting space, and a battleground. It …


Premises Of A Natural Science Of Consciousness, Ervin Laszlo Mar 2016

Premises Of A Natural Science Of Consciousness, Ervin Laszlo

CONSCIOUSNESS: Ideas and Research for the Twenty-First Century

According to the mainstream of modern science, there cannot be a natural science of consciousness because consciousness does not actually exist in nature. It is a product or by-product of the workings of the brain. There is a natural science of brain and the nervous system, for these are bona fide elements of the world, but there cannot be a natural science of a phenomenon of which the very existence is in question. In the prevalent view con2sciousness is something that happens when neurons fire in the brain. This is said to be confirmed by experience. There is no consciousness …


Consciousness Studies – An Overview, Allan Combs Mar 2016

Consciousness Studies – An Overview, Allan Combs

CONSCIOUSNESS: Ideas and Research for the Twenty-First Century

This essay is a survey of the field of consciousness studies, its history, scope, and a little about its future. It’s principal focus is on Western thinking about consciousness beginning in classical times and continuing down to the present. It highlights and briefly describes major streams of thought including ideas from ancient Greece, German Idealism, British Empiricism, 20th century European phenomenology, and important contemporary areas of research and scholarship. These include American pragmatism, developmental psychology, transpersonalism, analytic philosophy, computationalism, neural networks, and physics. The essay also briefly explores possible future trends in the study of consciousness.


Animal Suffering And Human Bias, Stijn Bruers Mar 2016

Animal Suffering And Human Bias, Stijn Bruers

Animal Sentience

Ng proposes concrete ways to decrease animal suffering on the basis of commonsense economic logic and research in welfare biology. But to reduce animal suffering effectively in livestock farming, animal experimentation or the natural environment we have to become more aware of our pervasive and spontaneous but unreliable intuitive moral judgments. These can generate biases that prevent us from decreasing animal suffering effectively.


An Animal Victim's Best Chance: Veterinary Legal Duty To Report Cruelty In The U.S., Lora Dunn Feb 2016

An Animal Victim's Best Chance: Veterinary Legal Duty To Report Cruelty In The U.S., Lora Dunn

Animal Sentience

Legislation throughout the U.S. recognizes animal sentience and the importance of veterinary reporting to combat the ongoing suffering of these animal victims: All 50 states have felony penalties available for animal cruelty crimes, and veterinary reporting is permitted or required in the majority of states. The remaining minority of U.S. states should take action to require veterinarians to report animal cruelty and render veterinarians immune for good faith reporting.


Veterinary Medical Associations Need To Educate Veterinarians For Mandatory Reporting Of Suspected Animal Abuse, Melinda V. Merck Feb 2016

Veterinary Medical Associations Need To Educate Veterinarians For Mandatory Reporting Of Suspected Animal Abuse, Melinda V. Merck

Animal Sentience

When animals are suffering, we have a duty to take action. With appropriate incentive and educational support mandatory veterinary reporting can be a great legal avenue to help ensure their safety and welfare.


Fish Pain's Burden Of Proof, Carl Safina Feb 2016

Fish Pain's Burden Of Proof, Carl Safina

Animal Sentience

A hypothesis like Key’s, that fish cannot feel pain, should really be stated as a null hypothesis — an assumption that there is no difference in the things being compared. Then evidence — including anecdotal evidence — for and against rejecting the null hypothesis can be examined and weighed. Key (2016a) has proven only that fish lack mammalian brains.


Burden Of Proof Lies With Proposer Of Celestial Teapot Hypothesis, Brian Key Feb 2016

Burden Of Proof Lies With Proposer Of Celestial Teapot Hypothesis, Brian Key

Animal Sentience

Bertrand Russell famously imagined the existence of a celestial teapot to highlight that the burden of proof of a hypothesis lay with its proposer and it was not the responsibility of others to refute it. Those who propose that fish feel pain must bear the burden of proof for their hypothesis. There are several common arguments adopted by those defending the position that fish feel pain. For instance, proponents envisage that pain is so important for human survival that they can’t imagine fish could exist without it. Out of this argument from incredulity emerges the idea that pain must have …


Animal Suffering In China, Peter J. Li Feb 2016

Animal Suffering In China, Peter J. Li

Animal Sentience

Chinese policy has been aimed at maximizing GDP; it is time to focus also on minimizing animal suffering.


Science And Sensibility, Bernard E. Rollin Feb 2016

Science And Sensibility, Bernard E. Rollin

Animal Sentience

The sentience and suffering of animals is obvious to common sense, even if science and industry claim to be agnostic. Economic incentives to reduce the suffering of animals are welcome, but it is not clear whether animals can turn to science for help.


When The Client Is Not The Abuser, But One Of The Abused, Tania Signal Feb 2016

When The Client Is Not The Abuser, But One Of The Abused, Tania Signal

Animal Sentience

The question of client confidentiality and reporting animal abuse is complicated when the client is not the abuser, and when the abuse (of both people and animals) may escalate precisely because it has been (or may be) reported.


Reconstructing Representations Of Dynamic Visual Objects In Early Visual Cortex, Edmund Chong, Ariana M. Familiar, Won Mok Shim Feb 2016

Reconstructing Representations Of Dynamic Visual Objects In Early Visual Cortex, Edmund Chong, Ariana M. Familiar, Won Mok Shim

Dartmouth Scholarship

As raw sensory data are partial, our visual system extensively fills in missing details, creating enriched percepts based on incomplete bottom-up information. Despite evidence for internally generated representations at early stages of cortical processing, it is not known whether these representations include missing information of dynamically transforming objects. Long-range apparent motion (AM) provides a unique test case because objects in AM can undergo changes both in position and in features. Using fMRI and encoding methods, we found that the “intermediate” orientation of an apparently rotating grating, never presented in the retinal input but interpolated during AM, is reconstructed in population-level, …


The Impact Of Affect On Neural Mechanisms Underlying Orientation Perception, Michelle L. Fowler Feb 2016

The Impact Of Affect On Neural Mechanisms Underlying Orientation Perception, Michelle L. Fowler

Dissertations, Theses, and Capstone Projects

The underlying mechanisms used to process 2D visual information to form a unified 3D percept of the world remain largely unknown. Previous work in our lab has shown that accurate 3D perception of textured surfaces depends on the presence of specific patterns of orientation flows in the retinal image. Recent research has shown that affective state may influence the visual perception of oriented patterns. Relative to neutral face stimuli, fearful face stimuli have been shown to increase sensitivity to orientation of low spatial frequency patterns and decrease sensitivity to orientation of high spatial frequency patterns. How affective state influences the …


The Effects Of Changing Attention And Context In An Awake Offline Processing Period On Visual Long-Term Memory, Timothy M. Ellmore, Anna Feng, Kenneth Ng, Luthfunnahar Dewan, James C. Root Jan 2016

The Effects Of Changing Attention And Context In An Awake Offline Processing Period On Visual Long-Term Memory, Timothy M. Ellmore, Anna Feng, Kenneth Ng, Luthfunnahar Dewan, James C. Root

Publications and Research

There is accumulating evidence that sleep as well as awake offline processing is important for the transformation of new experiences into long-term memory (LTM). Yet much remains to be understood about how various cognitive factors influence the efficiency of awake offline processing. In the present study we investigated how changes in attention and context in the immediate period after exposure to new visual information influences LTM consolidation. After presentation of multiple naturalistic scenes within a working memory paradigm, recognition was assessed 30 min and 24 h later in three groups of subjects. One group of subjects engaged in a focused …


Why Babies Do Not Feel Pain, Or: How Structure-Derived Functional Interpretations Can Go Wrong, Helmut Segner Jan 2016

Why Babies Do Not Feel Pain, Or: How Structure-Derived Functional Interpretations Can Go Wrong, Helmut Segner

Animal Sentience

The response to pain involves a non-conscious, reflexive action and a conscious perception. According to Key (2016), consciousness — and thus pain perception — depends on a neuronal correlate that has a “unique neural architecture” as realized in the human cortex. On the basis of the “bioengineering principle that structure determines function,” Key (2016) concludes that animal species such as fish, which lack the requisite cortex-like neuroanatomical structure, are unable to feel pain. This commentary argues that the relationship between brain structure and brain function is less straightforward than suggested in Key’s target article.


The Object Of Grief, Clark Glymour Jan 2016

The Object Of Grief, Clark Glymour

Animal Sentience

King’s new book is a wonderful collection of diverse anecdotes illustrating the variety of animal practices that are convincing illustrations of grief. Those who want scientific arguments for that conclusion should, however, read elsewhere.


Animal Suffering Calls For More Than A Bigger Cage, Simon R. B. Leadbeater Jan 2016

Animal Suffering Calls For More Than A Bigger Cage, Simon R. B. Leadbeater

Animal Sentience

Ng (2016) argues for incremental welfare biology partly because it would be impossible to demonstrate conclusively that animals are sentient. He argues that low cost changes in industrial practices and working collaboratively may be more effective in advancing animal welfare than more adversarial approaches. There is merit in some of Ng’s recommendations but a number of his arguments are, in my view, misdirected. The fact that nonhuman animals feel has already been adequately demonstrated. Cruelty to animals is intrinsic to some industries, so the only way to oppose it is to oppose the industry.


Modulation Of Behavior In Communicating Emotion, Martin Gardiner Jan 2016

Modulation Of Behavior In Communicating Emotion, Martin Gardiner

Animal Sentience

King discusses many examples where two animals, as they bond, behave in ways we interpret as expressing love for one another. If one of the bonded animals then dies, signs of loving are replaced by signs we interpret as expressing grief by the animal who remains. I propose a pathway for emotional communication between an animal and an observer that can have a central role in these and other observations by King and in our overall ability to interpret observed behavior in relation to emotion. This pathway provides evidence of emotion in an observed animal by communicating evidence of emotion’s …


Sentience And Animal Welfare: Affirming The Science And Addressing The Skepticism, Nancy Clarke Jan 2016

Sentience And Animal Welfare: Affirming The Science And Addressing The Skepticism, Nancy Clarke

Animal Sentience

Broom’s (2014) book is a well-researched and thoroughly written exploration and evaluation of the journey from the origins of animal welfare science to what we can say we now know and need to consider in relation to animal sentience and welfare. This book will help to counter any skepticism among academics and policy makers.


Nonhuman Mind-Reading Ability, Marthe Kiley-Worthington Jan 2016

Nonhuman Mind-Reading Ability, Marthe Kiley-Worthington

Animal Sentience

Harnad (2016) is mistaken that humans are better at mind-reading than other species. Humans have context-independent language, but nonhuman species, especially mammals, have context-dependent nonverbal skills – perceptual, communicative and social -- that can be much keener than our own.


Cognitive Evidence Of Fish Sentience, Jonathan Balcombe Jan 2016

Cognitive Evidence Of Fish Sentience, Jonathan Balcombe

Animal Sentience

I present a little-known example of flexible, opportunistic behavior by a species of fish to undermine Key’s (2016) thesis that fish are unconscious and unable to feel. Lack of a cortex is flimsy grounds for denying pain to fish, for on that criterion we must also then deny it to all non-mammals, including birds, which goes against scientific consensus. Notwithstanding science’s fundamental inability to prove anything, the precautionary principal dictates that we should give the benefit of the doubt to fish, and the state of the oceans dictates that we act on it now.


Mediating Claims Through Critical Anthropomorphism, Gordon Burghardt Jan 2016

Mediating Claims Through Critical Anthropomorphism, Gordon Burghardt

Animal Sentience

Key’s (2016) discussion of his claim that fish do not feel pain ignores the history of attempts to study the attribution of mental states to other species. Although willing to accept that mammals feel pain, Key claims that fish lack the mammalian neural mechanisms underlying pain and are unconscious of their experiences. Consequently, we do not need to be overly concerned about fishing practices that would otherwise be viewed as painful. Key uses a flawed anthropomorphic lens. All attributions of mental events to organisms other than oneself involve inferences derived from anthropomorphic processes through which we process physiological and behavioral …


Fish Lack The Brains And The Psychology For Pain, Stuart W.G. Derbyshire Jan 2016

Fish Lack The Brains And The Psychology For Pain, Stuart W.G. Derbyshire

Animal Sentience

Debate about the possibility of fish pain focuses largely on the fish’s lack of the cortex considered necessary for generating pain. That view is appealing because it avoids relatively abstract debate about the nature of pain experience and subjectivity. Unfortunately, however, that debate cannot be entirely avoided. Subcortical circuits in the fish might support an immediate, raw, “pain” experience. The necessity of the cortex only becomes obvious when considering pain as an explicitly felt subjective experience. Attributing pain to fish only seems absurd when pain is considered as a state of explicit knowing.


Pain And Other Feelings In Humans And Animals, Antonio Damasio, Hanna Damasio Jan 2016

Pain And Other Feelings In Humans And Animals, Antonio Damasio, Hanna Damasio

Animal Sentience

Evidence from neuroanatomy, neurophysiology, and neuropsychology suggests that the experience of feelings in humans does not depend exclusively on structures of the cerebral cortex. It does not seem warranted to deny the possibility of feeling in animals on the grounds that their cerebral cortices are not comparable to those of humans.


Anthropomorphic Denial Of Fish Pain, Lynne U. Sneddon, Matthew C. Leach Jan 2016

Anthropomorphic Denial Of Fish Pain, Lynne U. Sneddon, Matthew C. Leach

Animal Sentience

Key (2016) affirms that we do not know how the fish brain processes pain but denies — because fish lack a human-like cortex — that fish can feel pain. He affirms that birds, like fish, have a singly-laminated cortex and that the structure of the bird brain is quite different from that of the human brain, yet he does not deny that birds can feel pain. In this commentary we describe how Key cites studies that substantiate mammalian pain but discounts the same kind of data as evidence of fish pain. We suggest that Key's interpretations are illogical, do not …


Fish Pain: A Painful Topic, Carl Safina Jan 2016

Fish Pain: A Painful Topic, Carl Safina

Animal Sentience

If fish cannot feel pain, why do stingrays have purely defensive tail spines that deliver venom? Stingrays’ ancestral predators are fish. And why do many fishes possess defensive fin spines, some also with venom that produces pain in humans? These things did not evolve just in case sentient humans would evolve millions of years later and then invent scuba. If fish react purely unconsciously to “noxious” stimuli, why aren’t sharp jabbing spines enough? Why also stinging venom?


How Welfare Biology And Commonsense May Help To Reduce Animal Suffering, Yew-Kwang Ng Jan 2016

How Welfare Biology And Commonsense May Help To Reduce Animal Suffering, Yew-Kwang Ng

Animal Sentience

Welfare biology is the study of the welfare of living things. Welfare is net happiness (enjoyment minus suffering). Since this necessarily involves feelings, Dawkins (2014) has suggested that animal welfare science may face a paradox, because feelings are very difficult to study. The following paper provides an explanation for how welfare biology could help to reduce this paradox by answering some difficult questions regarding animal welfare. Simple means based on commonsense could reduce animal suffering enormously at low or even negative costs to humans. Ways to increase the influence of animal welfare advocates are also discussed, focusing initially on farmed …


Why Animal Welfarism Continues To Fail, Lori Marino Jan 2016

Why Animal Welfarism Continues To Fail, Lori Marino

Animal Sentience

Welfarism prioritizes human interests over the needs of nonhuman animals. Despite decades of welfare efforts other animals are mostly worse off than ever before, being subjected to increasingly invasive and harmful treatments, especially in the factory farming and biomedical research areas. A legal rights-based approach is essential in order for other animals to be protected from the varying ethical whims of our species.


Understanding Emotional Suffering, Barbara J. King Jan 2016

Understanding Emotional Suffering, Barbara J. King

Animal Sentience

In responding to insightful commentaries from 7 scholars, for which I am grateful, I offer new thoughts on whether animals can conceptualize and express signs of grief. I also discuss why I included both weak and strong examples of animal mourning, and how this work may help us think about enhanced welfare for animals, including freedom from emotional suffering.


Pain In Parallel, Peter Godfrey-Smith Jan 2016

Pain In Parallel, Peter Godfrey-Smith

Animal Sentience

Key's (2016) arguments against the view that fish feel pain can be shown to be fallacious by considering some damage-related behaviors in invertebrates. Pain may have different neural bases in different organisms, so the absence in fish of the cortical structures that might underlie pain in mammals does not settle the question of fish pain.