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Welcome to the nexus of ethics, psychology, morality, technology, health care, and philosophy
Showing posts with label Being. Show all posts
Showing posts with label Being. Show all posts

Wednesday, March 3, 2021

Evolutionary biology meets consciousness: essay review

Browning, H., Veit, W. 
Biol Philos 36, 5 (2021). 
https://doi.org/10.1007/s10539-021-09781-7

Abstract

In this essay, we discuss Simona Ginsburg and Eva Jablonka’s The Evolution of the Sensitive Soul from an interdisciplinary perspective. Constituting perhaps the longest treatise on the evolution of consciousness, Ginsburg and Jablonka unite their expertise in neuroscience and biology to develop a beautifully Darwinian account of the dawning of subjective experience. Though it would be impossible to cover all its content in a short book review, here we provide a critical evaluation of their two key ideas—the role of Unlimited Associative Learning in the evolution of, and detection of, consciousness and a metaphysical claim about consciousness as a mode of being—in a manner that will hopefully overcome some of the initial resistance of potential readers to tackle a book of this length.

Here is one portion:

Modes of being

The second novel idea within their book is to conceive of consciousness as a new mode of being, rather than a mere trait. This part of their argument may appear unusual to many operating in the debate, not the least because this formulation—not unlike their choice to include Aristotle’s sensitive soul in the title—evokes a sense of outdated and strange metaphysics. We share some of this opposition to this vocabulary, but think it best conceived as a metaphor.

They begin their book by introducing the idea of teleological (goal-directed) systems and the three ‘modes of being’, taken from the works of Aristotle, each of which is considered to have a unique telos (goal). These are: life (survival/reproduction), sentience (value ascription to stimuli), and rationality (value ascription to concepts). The focus of this book is the second of these—the “sensitive soul”. Rather than a trait, such as vision, G&J see consciousness as a mode of being, in the same way as the emergence of life and rational thought also constitute new modes of being.

In several places throughout their book, G&J motivate their account through this analogy, i.e. by drawing a parallel from consciousness to life and/or rationality. Neither, they think, can be captured in a simple definition or trait, thus explaining the lack of progress on trying to come up with definitions for these phenomena. Compare their discussion of the distinction between life and non-life. Life, they argue, is not a functional trait that organisms possess, but rather a new way of being that opens up new possibilities; so too with consciousness. It is a new form of biological organization at a level above the organism that gives rise to a “new type of goal-directed system”, one which faces a unique set of challenges and opportunities. They identify three such transitions—the transition from non-life to life (the “nutritive soul”), the transition from non-conscious to conscious (the “sensitive soul”) and the transition from non-rational to rational (the “rational soul”). All three transitions mark a change to a new form of being, one in which the types of goals change. But while this is certainly correct in the sense of constituting a radical transformation in the kinds of goal-directed systems there are, we have qualms with the idea that this formal equivalence or abstract similarity can be used to ground more concrete properties. Yet G&J use this analogy to motivate their UAL account in parallel to unlimited heredity as a transition marker of life.

Friday, January 22, 2021

Brain Scans Confirm There's a Part of You That Remains 'You' Throughout Your Life

Mike McRae
Science Alert
Originally published 27 Nov 20

At the very core of your identity a kernel of self awareness combines memories of the past with the fleeting sensations of the present, and adds a touch of anticipation for the future.

The question of whether this ongoing sense of 'you' is as robust as it feels has intrigued philosophers and psychologists throughout the ages. A new, small psychobiological study weighs in, looking at brain scans to conclude that at least some part of you is indeed consistent as you grow and age.

"In our study, we tried to answer the question of whether we are the same person throughout our lives," says Miguel Rubianes, a neuroscientist from the Complutense University of Madrid.

"In conjunction with the previous literature, our results indicate that there is a component that remains stable while another part is more susceptible to change over time."

Self-continuity forms the very basis of identity. Every time you use the word 'I', you're referring to a thread that stitches a series of experiences into a tapestry of a lifetime, representing a relationship between the self of your youth with one yet to emerge.

Yet identity is more than the sum of its parts. Consider the allegory of Theseus's ship, or the grandfather's axe paradox – a tool that's had its shaft replaced, as well as its head, but is still somehow the same axe that belonged to grandfather.

If our experiences change us, swapping out components of our identity with every heart break and every promotion, every illness and every windfall, can we truly still say we see ourself as the same person today as we were when we were four years old?

You can be forgiven for thinking this sounds more like philosophical navel-gazing than something science can address. But there are perspectives which psychology – and even the wiring of our neurological programming – can flesh out.