Nick Byrd’s Blog

Unconscious Perception in Infants?


Kouider et al have recently reported that infants’ cortical activity (when viewing faces) is isomorphic to that of adults who consciously perceive faces. They conclude that conscious perception develops between 5 and 15 months of age. After reading their paper, I want to consider a different conclusion. Perhaps Kouider et al didn’t find a marker of conscious perception. Maybe they found a marker of unconscious perception.

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Derek Leben’s “When Psychology Undermines [Moral and Religious] Beliefs”

Abstract

This paper attempts to specify the conditions under which a psychological explanation can undermine or debunk a set of beliefs. The focus will be on moral and religious beliefs, where a growing debate has emerged about the epistemic implications of cognitive science. Recent proposals by Joshua Greene and Paul Bloom will be taken as paradigmatic attempts to undermine beliefs with psychology. I will argue that a belief p may be undermined whenever: (i) p is evidentially based on an intuition which (ii) can be explained by a psychological mechanism that is (iii) unreliable for the task of believing p; and (iv) any other evidence for belief p is based on rationalization. I will also consider and defend two equally valid arguments for establishing unreliability:the redundancy argument and the argument from irrelevant factors. With this more specific understanding of debunking arguments, it is possible to develop new replies to some objections to psychological debunking arguments from both ethics and philosophy of religion.

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Rawls & Cosmopolitan Egalitarian Redistribution


(Photo credit: “The Works of Mercy” by David Teniers the Younger [in the public domain])

I have ventured beyond my areas of competence again: ethics. I find ethics to be massively complicated because so much of it seems to be bypassing unsettled empirical questions. Anyway, to try to avoid a misstep, I am reaching out to the wiser.

I have finally read some of Rawls’s A Theory of Justice—I am continually surprised at how many alleged “classics” I have yet to read. While I am sympathetic to most of it (and perhaps naively so), I am curious about how Rawls’s theory would apply to not just a single society, but a plurality of societies (like the plurality of nations on our planet). I have surveyed the first 3 chapters, paying special attention to section 58 (where he deals, briefly, with this very question). I have also skimmed Leif Wenar’s “Why Rawls is Not a Cosmopolitan Egalitarian” [PDF] (2006).

The trouble I am having is the following. It seems that Rawls allows for redistribution within societies, but not between societies—that is, per his principle of self-determination in section 58.

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Intermountain Philosophy Conference: Abstract


(Image credit: “Legacy Bridge, University of Utah” by Daderot via Wikipedia [public domain])

I will be at the University of Utah presenting a paper at the Intermountain Philosophy Conference tomorrow entitled “Neurobiological Correlates of Philosophical Belief & Judgment: What This Means for Philosophy.” An abstract is below. The conference website is here.

It is becoming increasingly common to find journals publishing articles that demonstrate psychological correlates (e.g. Adelstein, Deyong, Arvan) and biological correlates (e.g. Harris, Hsu, Stern) of various self-reported beliefs and judgments. It is perhaps most common to find articles reporting the correlates of political beliefs and judgments (e.g. Amodio, Arvan, Hatemi, Kanai, Tost). This paper sets out to show that philosophical beliefs are also worth experimental attention. But that is not all: I hypothesize that variations in peoples’ biology—perhaps their neurobiology in particular—could correlate with variations in their proclivity towards or aversion to particular philosophical beliefs and judgments. In the first section of the paper, I lay out what we might expect to learn about our philosophical beliefs from our neurobiology. Before I conclude that philosophical beliefs (or philosophical cognition) are worthy of experimental attention, I mention some philosophical and methodological concerns and some objections to the suggested research. I am careful to note along the way that while many of the conclusions reached by this research could be illuminating, we none of it should be devastating to philosophy. That is not to say that the research wouldn’t inspire some methodological reform (e.g., whether and how philosophers appeal to intuition or exploit certain language), but it would by no means “end” philosophy.

The Hard Problem of Consciousness: A Cognition Problem?

A couple month’s ago, I was at a conference where Anthony Jack proposed a very interesting theory: maybe we have two neural systems (Task Positive Network [TPN] and Default Mode Network [DMN]) that produce conflicting intuitions about some age-old philosophical puzzles. These conflicting intuitions lead us to get stuck when thinking about these puzzles (e.g. the hard problem of consciousness, the explanatory gap, or qualitative consciousness) are the result of conflicting intuitions (Jack et al 2013).

I was struck by Jack’s presentation for two reasons: (1) I was presenting a poster with a similar motivation at the same conference and (2) I have long been interested in a biological examination of (academic) philosophers.

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Philosophers’ Carnival #142


Welcome to the 142nd instantiation of The Philosophers’ Carnival.* The posts are below. In parentheses are the categories into which each post might fit and below is an excerpt. Special thanks to Jared Smith over at Philosophy & Polity who resurrected this edition after it was tragically erased from my server!

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Philosophers’ Brains

This link is a poster about philosophers’ brains that I presented at the Towards a Science of Consciousness Conference in Tuscon—I gave a talk based on this poster at University of Utah. Use the link to see a full-size PDF that will allow you to zoom ad nauseum without the blurriness—vector graphics are so cool!

Summary

We should not be surprised if some of the differences between philosophers views correlate with differences between philosophers’ brains. I list a handful of neurobiological differences that already correlate with philosophical differences among non-philosophers. It’s not obvious what we should glean from the possibility that philosophers’ brains could differ as a function of their views. After all, it might be that studying certain views changes our brain. That would not be surprising or concerning, really. But if it were the other way around — e.g., that structural/functional differences in brains predisposed us towards some views and away from other views — then that might be concerning. What if academic philosophy is just an exercise of post hoc rationalization of the views that philosophers’ brains are predisposed toward? Of course, it’s entirely possible that causation works in both directions. But even that could be concerning because that is compatible with self-reinforcing feedback loops. For instance, perhaps we are neurally predisposed to certain views, so we study those views which further predisposes us toward that view (and away from its alternatives). But these questions are getting ahead of the evidence. Hopefully, the neuroscience of philosophy will provide some answers. Until then, check out the poster to see what questions the research has already answered.

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