Showing posts with label belief. Show all posts
Showing posts with label belief. Show all posts

Wednesday, 22 July 2015

PERFECT 2016

Logo of project PERFECT
Project PERFECT wants to promote further investigation into whether false or irrational beliefs can be advantageous. Can such beliefs be biologically adaptive, enhance wellbeing, be conducive to the satisfaction of epistemic goals, or promote some other form of agential success? 

In the existing psychological literature, self-deception, positive illusions, delusions, confabulatory explanations, and other instances of false belief have been shown to be beneficial in one or more ways. However, in the philosophical literature, there has not been yet a systematic study of the role of false beliefs in supporting different aspects of human agency. We are organising a workshop which aims to fill this gap, PERFECT 2016, a workshop on False but Useful Beliefs (see link for a full programme).

Speakers will consider different types of beliefs that have an important role in supporting human agency. Some beliefs make us feel better about ourselves and even enhance our health prospects (e.g., positive illusions); some provide some explanation for very unusual experiences (e.g., clinical delusions); some protect us from undesirable truths (e.g., self-deception); some help us fill existing gaps in our memory (e.g., confabulation); some support a sense of community that improves social integration (e.g., religious beliefs). 

The workshop will encourage a reflection on the relationship among the different types of benefits that such beliefs can have and on the different aims and functions of beliefs. Registration is now open! The workshop will be held at Regent’s Conferences in central London on 4th and 5th February 2016. Keynote speakers include Anandi Hattiangadi, Allan Hazlett and Neil Van Leeuwen.

Please go the University of Birmingham online shop to register as places are limited.

Friday, 29 August 2014

Philosophy of Mind and Psychology Reading Group -- The Predictive Mind chapter 7

Kengo Miyazono
Welcome to the Philosophy of Mind and Psychology Reading Group hosted by the Philosophy@Birmingham blog. This month, Kengo Miyazono, post-doctoral research fellow at the University of Birmingham, introduces chapter 7 of Jakob Hohwy's The Predictive Mind (OUP, 2013).


Chapter 7 - Precarious Prediction
Presented by Kengo Miyazono

In chapter seven, Hohwy describes the ways in which perceptual inference is tuned in order to represent the world correctly and the ways in which it goes wrong.

The chapter discusses many different issues, but the central idea is that maintaining the "balance between trusting the sensory input and consequently keeping on sampling the world, versus distrusting the sensory input and instead relying more on one's prior beliefs" (146) is crucial in the successful operation of perceptual inference. Maintaining it is not a trivial task. And, the failure of the maintenance might be responsible for pathological conditions such as delusions or autism.

In principle, the prediction errors that are expected to be precise are allowed to drive revisions of prior beliefs higher up the hierarchy, while the prediction errors that are expected to be imprecise are not allowed to do so. Ideally, we expect high precision in predictions errors and, hence, allow them to drive belief revisions when they are trustworthy and expect low precision in prediction errors and, hence, do not allow them to drive belief revisions when they are not.

But, the process can go wrong. A possibility is that some people expect sensory prediction errors to be much less precise than they actually are. Hohwy suggests that this is what is happening in people with delusions; "a persistent, exaggerated expectation for noise and uncertainty would lead to imprecise sensory prediction errors mediated by low gain on sensory input and heightened reliance on top-down priors. 


Thursday, 24 July 2014

Epistemic Innocence and Delusion Formation

Ema Sullivan-Bissett
In this post Ema Sullivan-Bissett, post-doctoral researcher at the University of Birmingham Philosophy Department, summarises a paper she is currently working on. She presented it at the 88th Joint Session of the Aristotelian Society and Mind Association in Cambridge earlier this month. Ema works with Lisa Bortolotti on the project entitled Epistemic Innocence of Imperfect Cognitions.

 In the paper I argue that that delusional beliefs have the potential for epistemic innocence, irrespective of which approach to delusion formation we adopt. If I am right, whatever implications there are for delusions having this epistemic status, hold for whatever one says about how delusions are formed, that is, whether they are bottom-up and involve one or two factors, or whether they are top down.

I use the notion of epistemic innocence to capture an epistemically poor cognition which nevertheless both confers an epistemic benefit, and for which such a benefit is otherwise unobtainable. I place two conditions on what it takes for a delusion to be epistemically innocent. The first is that the delusional belief confers some significant epistemic benefit onto the subject (Epistemic Benefit). The second is that the epistemic benefit conferred on the subject could not be otherwise had since alternative, less epistemically faulty cognitions, are unavailable to the subject at that time (No Alternatives).

Tuesday, 3 June 2014

Desiring to Believe and Self-Deception


This week, postgraduate student Martin Smith considers the relationship between self-deception, the desire to believe and rationality. 

Nicole swears that her husband is faithful. She’s adamant about it. Her friends, though, aren’t convinced. That weekly poker game of his? He spends it with Rachel, they say. They see his car at her place every week. And these friends of Nicole’s are good friends. They wouldn’t say this lightly. But Nicole’s firm; “I just don’t believe any of it”, she says.

She speaks with conviction but her words aren’t the whole story. She won’t drive by Rachel’s place when her friends say he’ll be there. A few times she’s needed to get somewhere and it would have been convenient to just go past Rachel’s. But if it’s ‘poker night’, she’ll avoid that route. It piles minutes on to her journey but she just won’t go near that house.

Nicole is a bit of a puzzle. She says she believes her husband to be faithful. She’s not trying to deceive her friends by saying that. Best as she can tell in that moment, that’s an honest report of her perspective. But still, she doesn’t behave like someone who really believes that.

She seems to have some awareness that things are off. That’s why she avoids Rachel’s house. Part of her, somewhere, we might think, senses her friends have a point. But she’s keeping that sense – that awareness – at bay somehow. She’s blocking it out. She’s self-deceived.[1]

No doubt this self-deception is irrational. Hopefully, if we look at her case more deeply, we should be able to draw from it certain lessons. Namely, lessons about what not to do if we want to remain rational! And what’s interesting about this case, I think, is that the lessons we can draw from it might challenge common assumptions about desire, belief and rationality.

We might be tempted to describe Nicole’s problem like this: she wants too much to believe that her husband is faithful. Or she is too committed to believing that her husband is faithful. This desire/commitment, sadly, we might think, is competing against and trumping the rational demands upon her. Demands, for instance, to be fully attentive to evidence against her husband’s faithfulness. If only she could be less ‘invested’ and more ‘neutral’ regarding her belief that her husband is faithful, she would be more able to be rational.

There is something right in this. I think Nicole’s desire to believe that her husband is faithful is involved, in some way, in her irrationality – her self-deception.[2] But I don’t think the problem is that this desire is too strong. Rather the desire (or commitment) is too weak. Let me explain.

Nicole’s belief that her husband is faithful can’t withstand serious levels of opposing evidence. If she were to find her husband’s car at Rachel’s place, it might not be psychologically possible (it would at least be very hard) for her to continue believing in her husband’s faithfulness. So if Nicole desires to believe that her husband is faithful, evidence that he isn’t will make her uncomfortable. She’ll feel the threat that this evidence poses to her desire. It will be distressing for her.  

What can you do to get out of a distressing situation? One option is to face up to it. When you’re, say, anxious about making a phone call to a friend you’ve upset, you can choose to respond by gritting your teeth and picking up that phone. The distress might temporarily increase as you do so but you’re actually tackling the problem. Once it’s resolved, the distress will disappear.

The other way out of a distressing situation is to avoid it. You put off the phone call. Put it out of your mind. Distract yourself whenever the thought of it arises. Avoidance, no doubt, is easier than facing up to a problem. In avoidance you can experience immediate relief from distress rather than the temporary increase that taking action brings about. But there can be other price tags attached to avoidance, as I hope to show.

Obviously Nicole, rather than facing up to the evidence against her husband’s faithfulness, avoids that evidence. She keeps away from Rachel’s house. Brushes aside memories of suspicious activity. She has some level of awareness of this evidence alright but she keeps it from the centre of conscious attention. It’s always pushed to the peripheries. That’s how she deals with the distress that threats against her desire to believe bring.

Well okay, that’s a little cowardly but she’s getting what she wants, isn’t she? Hasn’t she has kept her belief that her husband is faithful intact? It sure seems like her desire to believe is winning out against the demands of rationality. It seems her desire is being gratified.

Consider, though, that her avoidance of threatening evidence against her husband’s faithfulness seems to call into question whether she does in fact believe him to be faithful. After all, she’s not willing to put that belief to the test. She’s not willing to ‘put her money where her mouth is’. Really, her avoidance of the evidence just seems like distrust that the world really is as she professes to believe it to be. That is, she seems to distrust her judgment that her husband is faithful. But if she distrusts that judgment, does she really believe it? Intuitively, to me, it seems she doesn’t. Or at least, she doesn’t fully believe it.[3]

It seems to me that in avoiding evidence against her belief, Nicole gradually loses that belief by systematically distrusting it. Self-deception may gratify her temporary desire for relief from distress but it sabotages her desire to believe that her husband is faithful. Her desire to believe loses out against her desire for comfort. Self-deception isn’t quite as attractive regarding belief-preservation as it may have seemed.

So what could she have done differently? Could she have better served her desire to believe? Yes, she could have, by facing up to the evidence. Enough avoidance guarantees loss of belief through mistrust. But while facing up to threats to a belief may also lead to loss of that belief, it also opens up the possibility of preserving it.

Confronting the situation allows one to potentially find out that the ‘evidence’ is not what one feared. Perhaps Nicole, if she drove up to Rachel’s house, would find a satisfactory and innocent explanation of it all (Rachel’s help was needed for a surprise for Nicole). Even if the chances of this are slim, they beat the zero-chance of belief-preservation offered by avoidance.

If all this is correct, then Nicole’s desire to believe would have been best served by complying with the demands of rationality. She would have maximised her chances of gratifying that desire by being attentive to the evidence. Really, her failure to be attentive to the evidence is a failure to be properly committed to her desire (and her belief). So rather than her desire competing against the demands of rationality, taking her desire seriously requires meeting those demands.

It’s often thought that desire for a belief, emotional investment in a belief, or commitment to a belief compromises rationality. But the lesson we can draw from cases of self-deception like Nicole’s might be that the problem is not in these attitudes themselves but in the deficient methods we use to (attempt to) uphold them. Deficient methods like choosing avoidance over action (‘facing up’), for instance.  

Bibliography

Funkhouser, E., 2005. Do the self-deceived get what they want? Pacific Philosophical Quarterly, 86(3), pp.295-312.

Lynch, K., 2012. On the “tension” inherent in self-deception. Philosophical Psychology. 25(3), pp.433-450.



















  









[1] This is an adaptation of a case of self-deception discussed by Funkhouser (2005, p.302).
[2] Of course, she may desire that her husband actually is faithful too. But it’s plausible to think that she also desires to believe that. Even if it were false that her husband were faithful, sincerely believing him to be would surely provides a level of comfort she could easily cherish. Ignorance is bliss after all. For considerations in favour of viewing desire for belief rather than for some state of affairs out there in the world as more significant in self-deception see Funkhouser (2005).
[3] I find plausible something in the spirit of Lynch’s claim that “the extent to which S really believes that p can be gauged by observing the risks he/she is willing to take on that assumption (2012, p.444).”

Friday, 30 May 2014

Philosophy of Mind and Psychology Reading Group -- The Predictive Mind chapter 4

Zoe Jenkin
Welcome to the fourth post of the online reading group in the Philosophy of Mind and Psychology hosted by the Philosophy@Birmingham blog. This month, Zoe Jenkin (Harvard) presents chapter 4 of The Predictive Mind by Jakob Hohwy (OUP 2013).


Chapter 4 - Action and Expected Experience
Presented by Zoe Jenkin


The first three chapters of The Predictive Mind sketch how prediction error minimization underlies all perceptual processing, explaining various features of the mind using one unified framework. Chapter four addresses the question of how action fits into the PEM framework, arguing not only that PEM can adequately accommodate action, but also that action plays a crucial role in minimizing prediction error. We end up with a picture on which in any given case of a prediction error (a discrepancy between the prediction of the system and the sensory input), this error can in principle be minimized in one of two ways—by revising one’s priors and generating a new hypothesis, or by acting so as to selectively sample the world in a way that makes the input data match the selected hypothesis. An example of such selective sampling might be, if the system predicts that there will be a face before it, it will fixate its eyes toward the region where the prediction dictates a nose will be, and scan for a surface with a characteristically nose-like slope. Hohwy notes that this active, selective sampling method will be more efficient than random sampling, because it will target regions of space where the hypothesis makes a particular or unique prediction and so can easily be confirmed or disconfirmed. On this view, “perceiving and acting are but two different ways of doing the same thing” (71), where that “thing” is minimizing prediction error.

Monday, 24 March 2014

Believing at Will


This week, Ema Sullivan-Bissett discusses why we cannot believe at will.


In my PhD thesis I am giving an account of belief which explains the link between belief and truth. One of the features of belief I am interested in is our inability to bring about beliefs at will. Most philosophers agree that we cannot bring about beliefs at will, but there has been disagreement about precisely what this inability amounts to.

I think that the various requirements for a case to count as one of willed belief, found in the work of philosophers working in this area, are captured by the Uncontrollability Thesis, which is the claim that ‘unmediated conscious belief-production is impossible’ (Noordhof 2001: 248).
           
I cannot bring about the belief that I’m an awesome dancer, just like that, i.e. without mediation. The ‘unmediated’ clause rules out cases in which I bring about the belief that my arm is in the air by raising my arm, or I bring about the belief that I am a chicken, by seeing a hypnotist—these believings would be mediated. We might usefully compare this to the imagination. I can imagine, just like that, without mediation. I can imagine that I am an awesome dancer just like that, I can imagine that my arm is in the air, just like that, and I can imagine that I am a chicken, just like that. I can imagine all of these things consciously, and without mediation, but I cannot believe them consciously, and without mediation.
           
In my PhD thesis I give an explanation of why we cannot believe at will—of why the Uncontrollability Thesis is true—by appealing to the one of the biological functions of our mechanisms for belief production. I claim that what is essential to belief is its motivational role, whereas our inability to believe at will is just a contingent feature, grounded in our biological history. This means that I allow for believers in other possible worlds who can bring about beliefs at will.         


Many philosophers will be unhappy with my explanation because it treats the Uncontrollability Thesis as expressing a contingent claim. They think that our inability to believe at will does not reflect a fact about us, but rather reflects a fact about the nature of belief itself. Indeed, ‘[m]ost’ philosophers take it that ‘our inability to bring about a belief just like that is a conceptual matter’ (Scott-Kakures 1994: 77), and ‘there is a widespread sense’ that ‘there is something in the nature of belief that makes it impossible to decide to believe a proposition for which one lacks epistemic support’ (Frankish 2007: 528). More strongly: ‘[t]here is [...] something so chokingly unswallowable about the idea of someone’s voluntarily coming to believe something that I have to suspect that this is ruled out at a deeper level than the contingent powers of our minds’ (Bennett 1990: 3). In my thesis I argue that this consequence of my account of belief is not so ‘chokingly unswallowable’ after all.

Monday, 3 March 2014

Birmingham Workshops in Philosophy - Belief & Perceptual Reasons



Belief & Perceptual Reasons

The presentations of this workshop will all investigate the notion of belief. This event is part of the new Birmingham Workshops in Philosophy series.


Wednesday 12th of March, 2014

10am - 4pm

Open to all.


10:40am  Coffee & Biscuits

11:00am  Scott Sturgeon (Birmingham): “The Tale of Bella and Creda”

                Lunch

1:45 Coffee

2pm         Rae Langton (Cambridge): “Moral Realism and the Plasticity of Mind”

4pm        Susanna Siegel (Birmingham, Harvard): “Can Expertise Rationally
                Influence Perceptual Experience?"

Talks will be in room Lecture Room 3 of the Learning Centre: R28 on the campus map.