Skip to main content

Dementia and Identity

Today’s post is by Giovanni Boniolo, Professor of Philosophy of Science and Medical Humanities in the Department of Neuroscience and Rehabilitation at the University of Ferrara, Italy.


Giovanni Boniolo


Since 2018, I have been appointed as Scientific Director of the Civitas Vitae Research Centre (CVRC). This is a new department of the Fondazione OIC onlus (Padova, Italy) devoted to seeking, implementing and disseminating sociological and ethical innovative procedures and strategies aimed to improve the quality of life of people who are vulnerable and fragile due to age or disability. 

The Fondazione OIC onlus is an innovative nursing home with about 1500 guests (from about 65 to about 100 years old) and 1700 operators, where the values of longevity as a resource, intergenerationality, positive culture of the limit, and fragility are intended as opportunities for social networking.

Since its establishment, the CVRC has been realizing several initiatives and research programs. In 2019, we organized a workshop on Rethinking Aging from the point of view of a philosophy of science interbreed with ethics and sociology (the contributions are published in History and Philosophy of the Life Sciences). On that occasion, I presented a talk on identity and dementia that has been published in the collection just mentioned.

This paper (“Demented patients and the quandaries of identity: setting the problem, advancing a proposal”) was intended to enter the vivid debate concerning the impression that dementia brings loss of the self, or loss of identity, or loss of personhood. This loss is alleged to occur since dementia negatively affects, step-by-step, the proper functioning of the main higher mental functions (memory and decision-making capacity). 

This decline, especially in the middle and late stages, could lead to the idea that the self, or the identity, or the personhood, has completely changed and is replaced by a different one. Further on, that decline could lead also to the idea that demented individuals would no longer have moral status, since they would no longer be persons. 

However, what do ‘self’, ‘identity’ and ‘personhood’ mean? Before addressing the problem of whether a demented individual has a loss of self, identity, or personhood, and then provide a judgment about his or her moral status, we should have a clear idea of what we mean by those terms. In my paper, first, I have provided some clues to clarify the meaning of the terms. 

Next, without using vague or ambiguous term like “self” and “personhood,” I have proposed an empirical (more precisely, biological) perspective on identity, based on the notion of ‘whole phenotype’ (I call it the Whole Phenotype Account, or WPA), which has allowed me to argue that the demented individuals maintain their identity, in particular their whole phenotype identity. Moreover, I have advanced some remarks on how it is possible to use the WPA to cope with the questions related to demented individuals’ loss of the capacity to make moral decisions.

On the basis of the WPA, the conceptual analysis I proposed resulted in showing that there are no strong reasons to claim that a demented individual is a different individual compared to whom they were before the disease. Claiming that they are different means starting from very partial accounts of identity where, many times, vague concepts (as self), or ambiguous concept (as personhood) are introduced. We do not need this kind of accounts when we are in the unlucky position of being forced to consider the dementia of our relatives. 

We need an open mind to understand that the demented individual in front of us is not a different individual from what they were before: they are the same, as the WPA allows to argue. Unfortunately, they have a terrible pathology and we have to help them and take care of them as far we can and until we can. We have to respect them and their choices and decisions as long as they are capable of choosing and deciding. Then, when this capacity has vanished, we have to continue respecting not only them, but also the choices and decisions they made.

Popular posts from this blog

Delusions in the DSM 5

This post is by Lisa Bortolotti. How has the definition of delusions changed in the DSM 5? Here are some first impressions. In the DSM-IV (Glossary) delusions were defined as follows: Delusion. A false belief based on incorrect inference about external reality that is firmly sustained despite what almost everyone else believes and despite what constitutes incontrovertible and obvious proof or evidence to the contrary. The belief is not one ordinarily accepted by other members of the person's culture or subculture (e.g., it is not an article of religious faith). When a false belief involves a value judgment, it is regarded as a delusion only when the judgment is so extreme as to defy credibility.

Rationalization: Why your intelligence, vigilance and expertise probably don't protect you

Today's post is by Jonathan Ellis , Associate Professor of Philosophy and Director of the Center for Public Philosophy at the University of California, Santa Cruz, and Eric Schwitzgebel , Professor of Philosophy at the University of California, Riverside. This is the first in a two-part contribution on their paper "Rationalization in Moral and Philosophical thought" in Moral Inferences , eds. J. F. Bonnefon and B. Trémolière (Psychology Press, 2017). We’ve all been there. You’re arguing with someone – about politics, or a policy at work, or about whose turn it is to do the dishes – and they keep finding all kinds of self-serving justifications for their view. When one of their arguments is defeated, rather than rethinking their position they just leap to another argument, then maybe another. They’re rationalizing –coming up with convenient defenses for what they want to believe, rather than responding even-handedly to the points you're making. Yo...

A co-citation analysis of cross-disciplinarity in the empirically-informed philosophy of mind

Today's post is by  Karen Yan (National Yang Ming Chiao Tung University) on her recent paper (co-authored with Chuan-Ya Liao), " A co-citation analysis of cross-disciplinarity in the empirically-informed philosophy of mind " ( Synthese 2023). Karen Yan What drives us to write this paper is our curiosity about what it means when philosophers of mind claim their works are informed by empirical evidence and how to assess this quality of empirically-informedness. Building on Knobe’s (2015) quantitative metaphilosophical analyses of empirically-informed philosophy of mind (EIPM), we investigated further how empirically-informed philosophers rely on empirical research and what metaphilosophical lessons to draw from our empirical results.  We utilize scientometric tools and categorization analysis to provide an empirically reliable description of EIPM. Our methodological novelty lies in integrating the co-citation analysis tool with the conceptual resources from the philosoph...