A blog from the Centre for Research Ethics & Bioethics (CRB)

Tag: philosophy (Page 15 of 20)

Thinking to the limits of language… and then onwards

Pär SegerdahlI read last summer Immanuel Kant’s enormous work, Critique of Pure Reason. It struck me that one of the “methods” he uses could be described as: thinking to the limits of language.

How is such thinking done?

Like this, for example: I see a cloud in the sky and think that the cloud is up there (I indicate “where” with a pointing gesture). Thereafter, I think more abstractly that the same can be said about the part of space that the cloud fills. That part of space is also up there (I point again).

– But where is space itself, as a whole?

Here it is tempting to make a sweeping gesture and say, “Space is everywhere; it surrounds me.” But precisely that I cannot do, say or think. Because then I would treat space as if it were somewhere. I would treat space as if it existed, in space.

My thinking took me to a limit of language, which it is tempting to transgress. So far, so good. But then it struck me that Kant also has a definite interpretation of his method.

He interprets the limit he acknowledged as if it were fundamental and primary: as if it were a source that enables our seeing of clouds and other things (here and there). Space itself does not exist (in space): space is the possibility of seeing things (here and there). This possibility is subjective, “within us,” Kant says; but that cannot be meant in the ordinary spatial sense.

Kant thus interprets limits of language as sources. Speaking, writing and thinking about these sources, he develops purified philosophical prose. He develops extra-ordinary forms of language, possessing absolute authority since they speak of what comes first: the sources within us of what we ordinarily experience and chatter about.

So although Kant indeed acknowledges the limit (by pointing out that space does not exist in space), he nonetheless contrives esoteric language to systematically present its nature and function as a source. The limit inspires, as if it were a philosophical starting line.

Is there an alternative to Kant’s interpretation? The alternative is that the limits of language hold for all of us, not least as thinkers. Thinking to the limits of language, as we did, does not lead to sublime discoveries of “first truths,” although it sounds profoundly true to say: “space does not exist in space.”

Paradoxically, it is when we reach the limit, and acknowledge it as a limit, that the temptation to transgress it arises. For our acknowledgement of the limit appears profoundly true and worth its own investigation. It strikes us as an “original” truth preceding all ordinary truths about, for example, that cloud in the sky.

And in that spirit we move onwards, as if summoned by the perceived profundity of the limit.

Pär Segerdahl

The Ethics Blog - Thinking about thinking

The challenge to simulate the brain

Michele FariscoIs it possible to create a computer simulation of the human brain? Perhaps, perhaps not. But right now, a group of scientists is trying. But it is not only finding enough computer power that makes it difficult: there are some very real philosophical challenges too.

Computer simulation of the brain is one of the most ambitious goals of the European Human Brain Project. As a philosopher, I am part of a group that looks at the philosophical and ethical issues, such as: What is the impact of neuroscience on social practice, particularly on clinical practice? What are the conceptual underpinnings of neuroscientific investigation and its impact on traditional ideas, like the human subject, free will, and moral agency? If you follow the Ethics Blog, you might have heard of our work before (“Conversations with seemingly unconscious patients”; “Where is consciousness?”).

One of the questions we ask ourselves is: What is a simulation in general and what is a brain simulation in particular? Roughly, the idea is to create an object that resembles the functional and (if possible also) the structural characteristics of the brain in order to improve our understanding and ability to predict its future development. Simulating the brain could be defined as an attempt to develop a mathematical model of the cerebral functional architecture and to load it onto a computer in order to artificially reproduce its functioning. But why should we reproduce brain functioning?

I can see three reasons: describing, explaining and predicting cerebral activities. The implications are huge. In clinical practice with neurological and psychiatric patients, simulating the damaged brain could help us understand it better and predict its future developments, and also refine current diagnostic and prognostic criteria.

Great promises, but also great challenges ahead of us! But let me now turn to challenges that I believe can be envisaged from a philosophical and conceptual perspective.

A model is in some respects simplified and arbitrary: the selection of parameters to include depends on the goals of the model to be built. This is particularly challenging when the object being simulated is characterized by a high degree of complexity.

The main method used for building models of the brain is “reverse engineering.” This is a method that includes two main steps: dissecting a functional system at the physical level into component parts or subsystems; and then reconstructing the system virtually. Yet the brain hardly seems decomposable into independent modules with linear interactions. The brain rather appears as a nonlinear complex integrated system and the relationship between the brain’s components is non-linear. That means that their relationship cannot be described as a direct proportionality and their relative change is not related to a constant multiplier. To complicate things further, the brain is not completely definable by algorithmic methods. This means that it can show unpredicted behavior. And then to make it even more complex: The relationship between the brain’s subcomponents affects the behavior of the subcomponents.

The brain is a holistic system and despite being deterministic it is still not totally predictable. Simulating it is hardly conceivable. But even if it should be possible, I am afraid that a new “artificial” brain will have limited practical utility: for instance, the prospective general simulation of the brain risks to lose the specific characteristics of the particular brain under treatment.

Furthermore, it is impossible to simulate “the brain” simply because such an entity doesn’t exist. We have billions of different brains in the world. They are not completely similar, even if they are comparable. Abstracting from such diversity is the major limitation of brain simulation. Perhaps it would be possible to overcome this limitation by using a “general” brain simulation as a template to simulate “particular” brains. But maybe this would be even harder to conceive and realize.

Brain simulation is indeed one of the most promising contemporary scientific enterprises, but it needs a specific conceptual investigation in order to clarify its inspiring philosophy and avoid misinterpretations and disproportional expectations. Even, but not only, by lay people.

If you want to know more, I recommend having a look at a report of our publications so far.

Michele Farisco

We like challenging questions - the ethics blog

Interesting Big Data-symposium on video

Pär SegerdahlMany posts on the Ethics Blog are about how new possibilities to collect and process large amounts of data change the horizon for medical research.

But “Big Data” makes its entry also in the humanities and social sciences. How does the horizon change there? How is the understanding of humans and of society affected when processing large amounts of data opens up a new field of vision for humanists and social scientists?

A symposium in Gothenburg last summer took up the issues, I saw at Christian Munthe’s blog (“Philosophical Comment”). He links to a video recording from the symposium and I link to Christian’s blog post; that way you’ll find both the blog and the video:

When you have time, take a look – the presentations are exciting!

Pär Segerdahl

We like challenging questions - the ethics blog

Idling normativity

Pär SegerdahlI recently wrote about the tendency of ethical practices to lose their vital functions and degenerate into empty rituals. Why is there such a tendency?

The tendency is not unique to ethics: it is everywhere.

Suddenly, patients and students are to be called “customers” and be treated “as” customers. This can be perceived as an imposed language, as empty rituals that demean all concerned.

Since the edict to treat a variety of relationships “as” customer relationships can be experienced as demeaning, expanding customer normativity has become a problem even where it has its rightful place: in our stores, where we really are customers.

A retail chain – I will not say which – is now instructing their employees to call their customers “guests” and to treat them “as” guests!

The retail chain “solves” the problem of expanding customer normativity by decreeing guest normativity at precisely the place where customer normativity should work authentically.

I don’t know why we so easily go astray in our own forms of normativity, but I have a name for the phenomenon: idling normativity.

Pär Segerdahl

Minding our language - the Ethics Blog

When writing becomes investigating

Pär SegerdahlWe write for many reasons. To remember, to instruct, to tell, to amuse…

Sometimes we write to investigate. Investigate what? Of course, something that we don’t really understand and therefore wonder about.

Writing is also a prestigious linguistic medium. Printed products (books and articles) often express the opposite of incomprehension and wonder. This is not surprising, since the printed product is the end result of long work.

This creates problems for the investigating beginner. One of the difficulties of writing about difficult things is to dare express your lack of understanding. You have to put your finger (or pen tip, or keys) precisely on your incomprehension.

Instead, one tends to quickly write up an impressive facade that hides one’s incomprehension. One mimics the style of the finished printed matter. One then starts at the wrong end. One starts at the end.

If you just slow down and ask yourself: What do I really understand here? What don’t I understand? And then honestly write it down – in the form of questions – you soon begin to write in a way that explores what needs to be clarified.

The moment your writing makes contact with your incomprehension, the writing becomes explorative. It will also come alive, because you don’t write as if you already were finished with everything. You make discoveries and you change during the work.

I would liken it to daring to ski down the slopes for the first time and dare to trust that you can turn back and forth so as to maintain a speed that you yourself can keep up with.

The equivalent of “turning back and forth” are the questions you regularly ask based on your incomprehension. Without the questions, you soon rush downhill and risk breaking your neck.

To write in an explorative way is to think. Therefore, philosophy doesn’t resemble a profession, because here it is your lack of competence that drives the work.

Pär Segerdahl

The Ethics Blog - Thinking about thinking

Our publications on neuroethics and philosophy of the brain

Pär SegerdahlAt CRB, an international, multidisciplinary research group works with ethical and philosophical questions that are associated with the neuroscientific exploration of the human mind and brain.

As part of the European Human Brain Project, they approach not only ethical questions that arise, or may arise, with the development and practical application of neuroscience. They also more fundamentally explore philosophical questions about, for example, the concepts of consciousness, human identity, and the self.

In order to give an overview of their extensive work, we recently compiled a report of their articles, books and book chapters. It is available online:

The report also contains abstracts of all the publications. – Have a look at the compilation; I’m sure you will find it fascinating!

I might add that we recently updated similar reports on our work in biobank ethics and in nursing ethics:

Here too you’ll find abstracts of our interesting publications in these fields.

Pär Segerdahl

Approaching future issues - the Ethics Blog

Where is consciousness?

 

Michele FariscoWould it be possible to use brain imaging techniques to detect consciousness and then “read” directly in people’s brains what they want or do not want? Could one, for example, ask a severely brain injured patient for consent to some treatment, and then obtain an answer through a brain scan?

Together with the philosopher Kathinka Evers and the neuroscientist Steven Laureys, I recently investigated ethical and clinical issues arising from this prospective “cerebral communication.”

Our brains are so astonishingly complex! The challenge is how to handle this complexity. To do that we need to develop our conceptual apparatus and create what we would like to call a “fundamental” neuroethics. Sound research needs solid theory, and in line with this I would like to comment upon the conceptual underpinnings of this ongoing endeavor of developing a “fundamental” neuroethics.

The assumption that visualizing activity in a certain brain area can mean reading the conscious intention of the scanned subject presupposes that consciousness can be identified with particular brain areas. While both science and philosophy widely accept that consciousness is a feature of the brain, recent developments in neuroscience problematize relating consciousness to specific areas of the brain.

Tricky logical puzzles arise here. The so called “mereological fallacy” is the error of attributing properties of the whole (the living human person) to its parts (the brain). In our case a special kind of mereological fallacy risks to be embraced: attributing features of the whole (the brain) to its parts (those visualized as more active in the scan). Consciousness is a feature of the whole brain: the sole fact that a particular area is more active than others does not imply conscious activity.

The reverse inference is another nice logical pitfall: the fact that a study reveals that a particular cerebral area, say A, is more active during a specific task, say T, does not imply that A always results in T, nor that T always presupposes A.

In short, we should avoid the conceptual temptation to view consciousness according to the so called “homunculus theory”: like an entity placed in a particular cerebral area. This is unlikely: consciousness does not reside in specific brain regions, but is rather equivalent to the activity of the brain as a whole.

But where is consciousness? To put it roughly, it is nowhere and everywhere in the brain. Consciousness is a feature of the brain and the brain is more than the sum of its parts: it is an open system, where external factors can influence its structure and function, which in turn affects our consciousness. Brain and consciousness are continually changing in deep relationships with the external environment.

We address these issues in more detail in a forthcoming book that I and Kathinka Evers are editing, involving leading researchers both in neuroscience and in philosophy:

Michele Farisco

We want solid foundations - the Ethics Blog

 

Teaching the child the concept of what it learns

Pär SegerdahlIt is natural to think that a child, who learns to speak, learns precisely that: simply to speak. And a child who learns addition learns precisely that: simply to add.

But is speaking “simply speaking” and is adding “simply adding”?

Imagine a very young child who is beginning to say what its parents recognize as the word “mummy.” The parents probably respond, enthusiastically:

  • “Oh, you said mummy!”

By repeating “mummy,” the parents naturally assume they support the child to say mummy again. Their focus is entirely on “mummy”: on the child’s saying of “mummy” and on their repetitions of “mummy.” By encouraging the child to say “mummy” again (and more clearly), they are teaching the child to speak.

No doubt their encouraging repetitions do support the child. However, the parents didn’t merely repeat “mummy.” They also said:

  • “Oh, you said mummy!”

From the very first words a child utters, parents respond not only by repeating what the child says, but also by speaking about speaking:

  • Say daddy!”
  • “Do you want to speak to mummy?”
  • “You said you wanted cookies”
  • “Which cookie did you mean?”
  • “What’s your name?”
  • “What you said isn’t true”
  • “Don’t use that word!”

Parents’ natural attitude is that they teach the child simply to speak. But, more spontaneously, without intending or noticing it, they initiate the child into the notions of speaking. One might call this neglected dimension of teaching: the reflexive dimension. When we teach the child X, we simultaneously initiate it into the reflexive notions of X: into the concept of what it learns.

This should apply also to learning addition, and I assume to just about anything we learn. There is an easily neglected initiation into a reflexive dimension of what is learned.

I suppose one reason why the reflexive dimension is neglected is that it is what enables talk about what the child learns. Reflexivity draws our attention away from itself, and thus from the fact that the child not simply learns what learns, but also the concept of what it learns.

If you want to read more about reflexive practices – how they are acquired, how they practically contribute to making language what it is (said to be); how they tend to be intellectually sublimated as theories of language – I want to recommend the writings of Talbot J. Taylor.

One article by Taylor that especially clearly demonstrates the early onset of reflexive language use in children  is:

Taylor’s work on reflexivity challenges me to reconsider the nature of philosophy. For philosophy seems to be concerned with the kind of notions we fail to notice we initiate children into, when we say, “You said mummy!”

Philosophy is “about” what we don’t notice we learn as children.

Pär Segerdahl

Minding our language - the Ethics Blog

Neuroethics: new wine in old bottles?

Michele FariscoNeuroscience is increasingly raising philosophical, ethical, legal and social problems concerning old issues which are now approached in a new way: consciousness, freedom, responsibility and self are today investigated in a new light by the so called neuroethics.

Neuroethics was conceived as a field deserving its own name at the beginning of the 21st century. Yet philosophy is much older, and its interest in “neuroethical” issues can be traced back to its very origins.

What is “neuroethics”? Is it a new way of doing or a new way of thinking ethics? Is it a sub-field of bioethics? Or does it stand as a discipline in its own? Is it only a practical or even a conceptual discipline?

I would like to suggest that neuroethics – besides the classical division between “ethics of neuroscience” and “neuroscience of ethics” – above all needs to be developed as a conceptual assessment of what neuroscience is telling us about our nature: the progress in neuroscientific investigation has been impressive in the last years, and in the light of huge investments in this field (e.g., the European Human Brain Project and the American BRAIN Initiative) we can bet that new  striking discoveries will be made in the next decades.

For millennia, philosophers were interested in exploring what was generally referred to as human nature, and particularly the mind as one of its essential dimensions. Two avenues have been traditionally developed within the general conception of mind: a non-materialistic and idealistic approach (the mind is made of a special stuff non-reducible to the brain); and a materialistic approach (the mind is no more than a product or a property of the brain).

Both interpretations assume a dualistic theoretical framework: the human being is constituted from two completely different dimensions, which have completely different properties with no interrelations between them, or, at most, a relationship mediated solely by an external element. Such a dualistic approach to human identity is increasingly criticized by contemporary neuroscience, which is showing the plastic and dynamic nature of the human brain and consequently of the human mind.

This example illustrates in my view that neuroethics above all is a philosophical discipline with a peculiar interdisciplinary status: it can be a privileged field where philosophy and science collaborate in order to conceptually cross the wall which has been built between them.

Michele Farisco

We transgress disciplinary borders - the Ethics Blog

Being humans when we are animals

Pär SegerdahlMost people know that humans are animals, a primate species. Still, it is difficult to apply that knowledge directly to oneself: “I’m an animal”; “My parents are apes.”

– Can you say it without feeling embarrassed and slightly dizzy?

In a recent paper I explore this difficulty of “bringing home” an easily cited scientific fact:

Why does the scientific “fact” crumble when we apply it directly to ourselves?

I approach this difficulty philosophically. We cannot run ahead of ourselves, but I believe that’s what we attempt if we approach the difficulty theoretically. Say, by theorizing the contrast between humans and animals as an absolute presupposition of human language that science cannot displace.

Such a theory would be as easy to cite as the “fact” and wouldn’t touch our difficulty, the dizziness we feel.

Instead, I explore a personal experience. When I visited a laboratory for ape language research, an ape named Panbanisha told me to be QUIET and later called me a MONSTER. Being reprimanded by an ape made me dizzy about my humanness and about her animality.

How did the dizziness arise? After spending some time with the apes, the vertigo disappeared. How did it disappear?

That’s investigated in the paper by asking further questions, and by recollecting aspects of the meeting with Panbanisha to which those questions drew my attention. The paper offers a philosophical alternative to theory.

Trust your uncertainty and follow your questions!

Pär Segerdahl

Understanding enculturated apes - the ethics blog

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