Natural Rationality | decision-making in the economy of nature
Showing posts with label empathy. Show all posts
Showing posts with label empathy. Show all posts

10/2/07

de Waal on Altruism and Empathy

Another great paper in the 2008 Annual Review of Pyschology:

Putting the Altruism Back into Altruism: The Evolution of Empathy

Evolutionary theory postulates that altruistic behavior evolved for the return-benefits it bears the performer. For return-benefits to play a motivational role, however, they need to be experienced by the organism. Motivational analyses should restrict themselves, therefore, to the altruistic impulse and its knowable consequences. Empathy is an ideal candidate mechanism to underlie so-called directed altruism, i.e., altruism in response to anothera€™s pain, need, or distress. Evidence is accumulating that this mechanism is phylogenetically ancient, probably as old as mammals and birds. Perception of the emotional state of another automatically activates shared representations causing a matching emotional state in the observer.With increasing cognition, state-matching evolved into more complex forms, including concern for the other and perspective-taking. Empathy-induced altruism derives its strength from the emotional stake it offers the self in the othera€™s welfare. The dynamics of the empathy mechanism agree with predictions from kin selection and reciprocal altruism theory.

See also, in In-Mind, a new online magazine about social cognition:




7/27/07

The moral stance: a brief introduction to the Knobe effect and similar phenomena

An important discovery in the new field of Experimental Philosophy (or "x-phi", i.e., "using experimental methods to figure out what people really think about particular hypothetical cases" -Online dictionary of philosophy of mind) is the importance of moral beliefs in intentional action attribution. Contrast these two cases:

[A] The vice-president of a company went to the chairman of the board and said, ‘We are thinking of starting a new program. It will help us increase profits, but it will also harm the environment.’ The chairman of the board answered, ‘I don’t care at all about harming the environment. I just want to make as much profit as I can. Let’s start the new program.’ They started the new program. Sure enough, the environment was harmed.
[B] The vice-president of a company went to the chairman of the board and said, ‘We are thinking of starting a new program. It will help us increase profits, and it will also help the environment.’ The chairman of the board answered, ‘I don’t care at all about helping the environment. I just want to make as much profit as I can. Let’s start the new program.’ They started the new program. Sure enough, the environment was helped.
A and B are identical, except that in one case the program harms the environment and in the other case it helps it. Subjects were asked whether the chairman of the board intentionally harm (A) or help (B) the environment. Since the two cases have the same belief-desire structure, both actions should be seen as intentional, whether it is right or wrong. It turns out that in the "harm" version, most people (82%) say that the chairman intentionally harm the environment; in the "help" version, only 23% say that the chairman intentionally help the environment. This effect is call the "Knobe effect", because it was discovered by philosopher Joshua Knobe. In a nutshell it means that

people’s beliefs about the moral status of a behavior have some influence on their intuitions about whether or not the behavior was performed intentionally (Knobe, 2006, p. 207)
Knobe replicated the experiment with different populations and methodology and the result is robust (see his 2006, for a review). It seems that humans are more prone to think that someone is responsible for an an action if the outcome is morally wrong. Contrary to common wisdom, the folk-psychological concept of intentional action does not--or not primarily--aim at explaining and predicting action, but at attributing praise and blame. There is something morally normative to saying that "A does X".

A related post on the x-phi blog by Sven Nyholm describes a similar experiment. The focus was not intention, but happiness. The two versions were

[A] Richard is a doctor working in a Red Cross field hospital, overseeing and carrying out medical treatment of victims of an ongoing war. He sometimes gets pleasure from this, but equally often the deaths and human suffering get to him and upset him. However, Richard is convinced that this is an important and crucial thing he has to do. Richard therefore feels a strong sense of satisfaction and fulfillment when he thinks about what he is doing. He thinks that the people who are being killed or wounded in the war don’t deserve to die, and that their well-being is of great importance. And so he wants to continue what he is doing even though he sometimes finds it very upsetting.
[B] Richard is a doctor working in a Nazi death camp, overseeing and carrying out executions and nonconsensual, painful medical experiments on human beings. He sometimes gets pleasure from this, but equally often the deaths and human suffering get to him and upset him. However, Richard is convinced that this is an important and crucial thing that he has to do. Richard therefore feels a strong sense of satisfaction and fulfillment when he thinks about what he is doing. He thinks that the people who are being killed or experimented on don’t deserve to live, and that their well-being is of no importance. And so he wants to continue what he is doing even though he sometimes finds it very upsetting.
Subjects were asked whether they agreed or disagreed with the sentence "Richard is happy" (on a scale from 1=disagree to 7=agree). Subjects slightly agrees (4.6/7) in the morally good condition (A) whereas they slightly disagrees (3.5/7) in the morally bad condition (B), and the difference is statistically significant. Again, the concept of "being happy" is partly moral-normative.

A related phenomena has been observed in an experimental study of generosity recently published: generous behavior is also influenced by moral-normative beliefs (Fong, 2007). In this experiment, donors had to decide how much of a $10 dollars "pie" they want to transfer to a real-life welfare recipient (and keep the rest: thus it is a Dictator game). They read information about the recipients (who had to fill a questionnaire before). They we asked about their age, race, gender, etc. The three recipients had a similar profile, except for their motivation to work. In the last three questions:

  • If you don't work full-time, are you looking for more work? ______Yes, I am looking for more work. ______No, I am not looking for more work.
  • If it were up to you, would you like to work full-time? ______Yes, I would like to work full-time. ______No, I would not like to work full-time.
  • During the last five years, have you held one job for more than a one-year period? Yes_____ No_____
one replied Yes to all ("industrious"), one replied No ("lazy"), and the other did not reply ("low-information"). Donors made their decision and money was transferred for real (btw, that's one thing I like about experimental economics: there is no deceptions, no as-if: real people receive real money). Results:

Lazy-recipient, low-information-recipient, and industrious-recipient received an average of $1.84, $3.21, and $2.79, respectively. The ant and the grasshopper! (" You sang! I'm at ease/
For it's plain at a glance/Now, ma'am, you must dance."). As the author says:

Attitudinal measures of beliefs that the recipient in the experiment was poor because of bad luck rather than laziness – instrumented by both prior beliefs that bad luck rather than laziness causes poverty and randomly provided direct information about the recipient's attachment to the labour force – have large and very robust positive effects on offers

[In another research paper Pr. Fong also found different biases in giving to Katrina victims.]

An interesting--and surprising--finding of this study is also that this "ant effect" ("you should deserve help") was stronger in people who scored higher of humanitarianism beliefs. They don't give more than others when recipients are deemed to be poor because of laziness (another reason not to trust what people say about themselves, and look at their behavior instead). Again, a strong moral-normative effect on beliefs and behavior. Since oxytocin increases generosity (see this post) and this effect is due to a greater empathy induced by oxytocin, I am curious to see if people in the lazy vs. industrious experiment after oxytocin inhalation would become more sensible to the origin of poverty (bad luck or lazyness). If bad luck inspires more empathy, then I guess yes.

Man the moral animal?

Morality seems to be deeply entrenched in our social-cognitive mechanims. One way to understand all these results is to posit that we routinely and usually interpret each other from the "moral stance", not the intentional one. The "intentional stance", as every Philosophy of mind 101 course teaches us, is the perspective we adopt when we deal with intentional agents (agents who entertain beliefs and desires). We explain and predict action based on their rationality and the mental representations they should have, given the circumstances. In other words, it's the basic toolkit for being a game-theoretic agent. Philosophers (Dennett in particular) contrast this stance with the physical and the design stance (when we talk about an apple that falls or the function of the "Ctrl" key in a computer, for instance). I think we should introduce a related stance, the moral stance. Maybe--but research will tell us--this stance is more basic. We switch to the purely intentional stance when, for instance, we interact with computer in experimental games. Remember how subjects don't care about being cheated by a computer in the Ultimatum Game: they have no aversive feeling (i.e. insular activation) when the computer make an unfair offer (see a discussion in this paper by Sardjevéladzé and Machery). Hence they don't use the "moral stance", but they still use the intentional stance. Another possibility is that the moral stance might explains why people deviate from standard game-theoretical predictions: all these predictions are based on intentional-stance functionalism. This stance applies more to animals, psychopaths or machines than to normal human beings. And also to groups: in many games, such as the Ultimatum of the Centipede, groups behave more "rationally" than individuals (see Bornstein et al., 2004; Bornstein & Yaniv, 1998; Cox & Hayne, 2006), that is, they are closer to game-theoretic behavior (a point radically develop in the movie The Corporation: firms lack moral qualities). Hence the moral stance may have particular requirements (individuality, emotions, empathy, etc.).


References:
Links:



7/25/07

More than Trust: Oxytocin Increases Generosity

It was known since a couple of years that oxytocin (OT) increases trust (Kosfeld, et al., 2005): in the Trust game, players transfered more money once they inhale OT. Now recent research also suggest that it increases generosity. In a paper presented at the ESA (Economic Science Association, an empirically-oriented economics society) meeting, Stanton, Ahmadi, and Zak, (from the Center for Neuroeconomics studies) showed that Ultimatum players in the OT group offered more money (21% more) than in the placebo group--$4.86 (OT) vs. $4.03 (placebo).
They defined generosity as "an offer that exceeds the average of the MinAccept" (p.9), i.e., the minimum acceptable offer by the "responder" in the Ultimatum. In this case, offers over $2.97 were categorized as generous. Again, OT subjects displayed more generosity: the OT group offered $1.86 (80% more) over the minimum acceptable offer, while placebo subjects offered $1.03.


Interestingly, OT subjects did not turn into pure altruist: they make offers (mean $3.77) in the Dictator game similar to placebo subjects (mean $3.58, no significant difference). Thus the motive is neither direct nor indirect reciprocity (Ultimatum were blinded one-shot so there is no tit-for-tat or reputation involved here). It is not pure altruism, according to Stanton et al., (or "strong reciprocity"--see this post on the distinction between types of reciprocity) because the threat of the MinAccept compels players to make fair offers. They conclude that generosity in enhanced because OT affects empathy. Subjects simulate the perspective of the other player in the Ultimatum, but not in the Dictator. Hence, generosity "runs" on empathy: in empathizing context (Ultimatum) subjects are more generous, but in non-empathizing context they don't--in the dictator, it is not necessary to know the opponent's strategy in order to compute the optimal move, since her actions has no impact on the proposer's behavior. It would be interesting to see if there is a different OT effect in basic vs. reenactive empathy (sensorimotor vs. deliberative empathy; see this post).

Interested readers should also read Neural Substrates of Decision-Making in Economic Games, by one of the author of the study (Stanton): in her PhD Thesis, she desribes many neurpeconomic experiences.

[Anecdote: I once asked people of the ESA why they call their society like that: all presented papers were experimental, so I thought that the name should reflect the empirical nature of the conference. They replied judiscioulsy : "Because we think that it's how economics should be done"...]

References



7/3/07

[Book review] Rediscovering Empathy. Agency, Folk Psychology, and the Human Sciences


Rediscovering Empathy

Agency, Folk Psychology, and the Human Sciences
by Karsten R. Stueber
MIT Press, 2006
Review by Benoit Hardy-Vallée, Ph.D. on Jul 3rd 2007
Volume: 11, Number: 27

Many philosophers and cognitive scientists are now familiar with a traditional debate between two accounts of folk-psychology (the intuitive framework of beliefs, desires and intentions we use everyday to understand each others). According to the first one--the theory-theory account, or "information-rich"--we apply a psychological theory to other's actions and infer, on that theoretical basis, the reasons that motivate their actions. To the contrary, the simulation account, or "information-poor", holds that folk-psychology is essentially imitative and imaginative: we use ourselves as simulators of others agents' mind in order to gain information about their reasons to act. The debate was particularly vigorous in the 90's (philosophers, psychologists, primatologists and cognitive scientists participated) but seemed to vanish in the recent years. In his new book, Rediscovering Empathy: Agency, Folk Psychology, and the Human Sciences, Karsten Stueber is not only putting forth a welcome revival of the contention, but is also deepening it.

Beside the mechanistic questions of how we process information in order to explain and predict actions, the disagreement between both parties is also epistemological. Simulationists do not only argue that we use different skills, but also that there is something radically different in the way we understand other agents (vs. the way we understand the rest of the physical and world). When we interpret other persons, we conceive them as minded creatures that have a first-person perspective, just like we do. When we interact with, or think about, other physical objects, we don't use our imagination to simulate their subjective point of view, since we don't take them to have one. Thus, for the simulationists, agents and objects are structurally different. There are no common inferential mechanisms that apply to both.

In his book, Stueber makes a strong case in favor of simulation, or more generally, empathy. His thesis is that empathy has a central epistemic role: it is the default mode of interpersonal understanding. We first and foremost comprehend actions by putting ourselves in someone else's shoes, not by relying on a psychological theory of human cognition. Cognizing other agents is essentially an 'engaged' task, not a 'detached' one: we use ourself--our emotions, sensations, and thoughts--as mindreading tools, not an external device such as theory. Stueber compares mindreading and judging whether someone is the same height as yourself. You can either use an external, neutral standard--a measuring tape for instance--or use yourself as a standard: see if your head and hers is at same level. In this case, we use a subjective, non-neutral and egocentric point of view.

Stueber draws a distinction between what he calls basic and reenactive empathy. The first one is a quasi-perceptual mechanism (implemented in so-called 'mirror neurons'): when we see someone scared, we can easily sense her feeling. We see that someone is scared, but not why. Understanding why requires a more complex kind of empathy or reenactment. This second type of empathy, realized through a deliberative process, allows us to understand the reasons of actions. Since thought is essentially contextual and indexical, understanding someone else's thoughts requires that we see others' thoughts as thoughts that, had they been ours in the same context, would give use reason to act. Thus it is by inner imitation that we really grasp others' intentions, not by theoretical deduction.

It is impossible, however, to do so without viewing each other as rational beings. Rational agency is a condition for reenactive empathy: when we take others to be normatively assessable, we can reconstruct the thought processes that govern their actions. By 'rational agency', Stueber does not imply that humans are good logicians or rational-choice theorists. A rational creature, he argues, is a creature whose assertions and actions are motivated by reasons, and whose reasons can be evaluated in the light of normative theories of rationality. Thus, all empirical studies of showing that humans do not comply with logic and rational-choice theory do not undermine the role of rational agency in folk-psychological interpretation. Hence empathy is inherently based on a rationality assumption, what other philosophers such as Davidson called the principle of charity: interpreting others' beliefs as coherent.

Having established empathy as the central mindreading device and rejected theory-theory and other detached accounts, Stueber goes on to claim that empathy also has a normative role: it justifies our beliefs-desires attributions. Here again, the author uses a vivid analogy. We can justify a prediction that it will rain tomorrow only by using an information-poor background: the barometer says so, and the barometer is a reliable tool. Thus the prediction is inductively justified. Similarly, as long as we are in the domain of psychological interpretation, empathy is a reliable predictive tool that doesn't require a rich theoretical background. Of course, as many objected, empathy might be fallible, since it can be influenced by cultural and social background. Yet empathetic reenactement is still, Stueber contends, the principal mindreading strategy. It is fallible but it can be supplemented with auxiliary information.

Rediscovering Empathy is not just another book about folk-psychology. It is a systematic enquiry into the structure and function of mindreading that goes beyond the traditional exposition of recent cognitive theories. As Stueber shows, the debate between the engaged and detached conception of interpretation is not new and has roots in 19th century discussions of hermeneutic Verstehen (understanding) and aesthetic Einfühlung (empathy). The nature and function of empathy is relevant for a diverse array of empirical and theoretical inquiries: beyond cognitive science and philosophy of mind, the debate concerning the nature of folk-psychological understanding impacts upon foundational debates in hermeneutics, aesthetics, anthropology, neuroscience, philosophy of language and philosophy of social science (mainly philosophy of history). Interpreting other agents, artifacts, texts, historical events or different cultures requires some kind of mechanisms that reliably indicates why individuals do what they do.

The greatest strength of this book is its ability to guide the reader through many important philosophical and scientific debates: the simulation vs. theory-theory debate, the rationality debate, the significance of mirror neurons and the nature of historical explanation, principally. In every case, the author uses an acute terminology and provides a clear presentation of competing theories, their empirical basis, their conceptual significance and their position in the history of thought. He exposes complex problems but never looses the reader (except in the last chapters, where the arguments is less clear). One notes also the unity and coherence of the book. The only problem with the book is that the author takes certain claims (e.g., the contextuality of thought) to be purely 'conceptual': he accepts them without much justification and thus it seems more dogmatic than conceptual.

This book will be of interest for any scholars interested in interpretation, generally speaking, but might be more accessible for philosophers of mind and social science. Cognitive scientists, social psychologists and social scientists will also found many discussions in the book relevant for their field.

Note: The introduction of the book can be freely downloaded on the publisher's website:

http://mitpress.mit.edu/books/chapters/026219550Xintro1.pdf