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IEET > Rights > Neuroethics > Personhood > Life > Access > Enablement > Vision > Bioculture > Directors > George Dvorsky

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Prominent Scientists Sign Declaration that Animals have Conscious Awareness, Just Like Us


George Dvorsky
George Dvorsky
io9.com

Posted: Aug 25, 2012

An international group of prominent scientists has signed The Cambridge Declaration of Consciousness in which they are proclaiming their support for the idea that animals are conscious and aware to the degree that humans are — a list of animals that includes all mammals, birds, and even the octopus.

But will this make us stop treating these animals in totally inhumane ways?

While it might not sound like much for scientists to declare that many nonhuman animals possess conscious states, it’s the open acknowledgement that’s the big news here. The body of scientific evidence is increasingly showing that most animals are conscious in the same way that we are, and it’s no longer something we can ignore.

What’s also very interesting about the declaration is the group’s acknowledgement that consciousness can emerge in those animals that are very much unlike humans, including those that evolved along different evolutionary tracks, namely birds and some cephalopods.

“The absence of a neocortex does not appear to preclude an organism from experiencing affective states,” they write, “Convergent evidence indicates that non-human animals have the neuroanatomical, neurochemical, and neurophysiological substrates of conscious states along with the capacity to exhibit intentional behaviors.”

Consequently, say the signatories, the scientific evidence is increasingly indicating that humans are not unique in possessing the neurological substrates that generate consciousness.

The group consists of cognitive scientists, neuropharmacologists, neurophysiologists, neuroanatomists, and computational neuroscientists — all of whom were attending the Francis Crick Memorial Conference on Consciousness in Human and Non-Human Animals. The declaration was signed in the presence of Stephen Hawking, and included such signatories as Christof Koch, David Edelman, Edward Boyden, Philip Low, Irene Pepperberg, and many more.

The declaration made the following observations:

“The field of Consciousness research is rapidly evolving. Abundant new techniques and strategies for human and non-human animal research have been developed. Consequently, more data is becoming readily available, and this calls for a periodic reevaluation of previously held preconceptions in this field. Studies of non-human animals have shown that homologous brain circuits correlated with conscious experience and perception can be selectively facilitated and disrupted to assess whether they are in fact necessary for those experiences. Moreover, in humans, new non-invasive techniques are readily available to survey the correlates of consciousness.

The neural substrates of emotions do not appear to be confined to cortical structures. In fact, subcortical neural networks aroused during affective states in humans are also critically important for generating emotional behaviors in animals. Artificial arousal of the same brain regions generates corresponding behavior and feeling states in both humans and non-human animals. Wherever in the brain one evokes instinctual emotional behaviors in non-human animals, many of the ensuing behaviors are consistent with experienced feeling states, including those internal states that are rewarding and punishing. Deep brain stimulation of these systems in humans can also generate similar affective states. Systems associated with affect are concentrated in subcortical regions where neural homologies abound. Young human and nonhuman animals without neocortices retain these brain-mind functions. Furthermore, neural circuits supporting behavioral/electrophysiological states of attentiveness, sleep and decision making appear to have arisen in evolution as early as the invertebrate radiation, being evident in insects and cephalopod mollusks (e.g., octopus).

Birds appear to offer, in their behavior, neurophysiology, and neuroanatomy a striking case of parallel evolution of consciousness. Evidence of near human-like levels of consciousness has been most dramatically observed in African grey parrots. Mammalian and avian emotional networks and cognitive microcircuitries appear to be far more homologous than previously thought. Moreover, certain species of birds have been found to exhibit neural sleep patterns similar to those of mammals, including REM sleep and, as was demonstrated in zebra finches, neurophysiological patterns, previously thought to require a mammalian neocortex. Magpies in articular have been shown to exhibit striking similarities to humans, great apes, dolphins, and elephants in studies of mirror self-recognition.

In humans, the effect of certain hallucinogens appears to be associated with a disruption in cortical feedforward and feedback processing. Pharmacological interventions in non-human animals with compounds known to affect conscious behavior in humans can lead to similar perturbations in behavior in non-human animals. In humans, there is evidence to suggest that awareness is correlated with cortical activity, which does not exclude possible contributions by subcortical or early cortical processing, as in visual awareness. Evidence that human and nonhuman animal emotional feelings arise from homologous subcortical brain networks provide compelling evidence for evolutionarily shared primal affective qualia.”


This essay originally appeared at io9.com, Here


Read more about this Here and Here.


H/t to Katherine Harmon of SciAM.

Image #1 via Vittorio Bruno/Shutterstock.com

Image #2 Elephant passing the mirror test via.


George P. Dvorsky serves as Chair of the IEET Board of Directors and also heads our Rights of Non-Human Persons program. He is a Canadian futurist, science writer, and bioethicist. He is a contributing editor at io9 — where he writes about science, culture, and futurism — and producer of the Sentient Developments blog and podcast. He served for two terms at Humanity+ (formerly the World Transhumanist Association). George produces Sentient Developments blog and podcast.
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COMMENTS


“But will this make us stop treating these animals in totally inhumane ways?” Ive been asking myself this question for years – Paul and Patricia Churchland advocate the use of neurophilosophy to describe ourselves. This means that we should refer to ourselves as brains/minds, neurons, and consciousness. As we understand that our awareness of the world is similar or the same as the consciousness of many animals and start referring to ourselves brain/mind/qualia/consciousness it’s then left to human and posthuman logic and ethics to say “hey, animals are not commodities, they are not rocks, they have similar experiences of consciousness as we do – we must start treating them as such!”

But first perhaps we need people to start referring to themselves as consciousness, and brains instead of souls, spirits, and “the highest on the food chain” etc.

Some links on animal consciousness and interesting ways to put an end to the suffering of billions of animals written by IEET contributers:

Five Factors Influencing the Adoption of Artificial Meat
http://ieet.org/index.php/IEET/more/olson20120229

The Crusade for a Cultured Alternative to Animal Meat: An Interview with Nicholas Genovese, PhD PETA
http://ieet.org/index.php/IEET/more/notaro20111005

Correlation and Resemblance Between Human and Animal Consciousness
http://ieet.org/index.php/IEET/more/notaro20120502

Debating Animals as Legal Persons
http://ieet.org/index.php/IEET/more/aldf20110602

The Humanist View of Animal Rights
http://ieet.org/index.php/IEET/more/5865

http://www.google.com/cse?cx=partner-pub-7516929446248798:r0dwrp-yke4&ie=ISO-8859-1&q=animals&sa=Search&siteurl=www.ieet.org/&ref=&ss=1352j466056j7#gsc.tab=0&gsc.q=animal rights





While I think it’s admirable that we are expanding our awareness to include the concept that animals may have consciousness which is similar to ours, it is premature to declare such. The reason being: we have no idea what consciousness is, how is arises, and which creatures have it.

It is one thing to respect the lives of other beings, which I support, and another to attribute to them a conscious life that even remotely resembles ours. We cannot even imagine the inner life of our own friends and relatives, let alone other species.

Peter L Borst
Ithaca, NY





I agree that we should continue this important research. However, it is in no way new to science to observe animal consciousness. Researchers like Dian Fossey, Jane Goodall, Cynthia Moss and others have spent decades of their lives involved in this pursuit. How fortunate we are that their accounts may now be backed up with hard empirical evidence.

Of coarse animals are not having human experiences, just as we are not having elephant experiences, and yet the facts are undeniable that many of our experiences as conscious beings are shared. I am delighted by this article, thank you!





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