Friday, April 27, 2007

Moral cognition and neuroethics

This week’s readings focused on moral cognition and neuroethics. I thought that Greene and Haidt’s article “How (and where) does Moral Judgment Work?” approached the endless and repetitive questions of moral psychology from a clear and progressive prospective. They recognize that the historical view of analyzing moral judgments juxtaposed emotion and reason, and that this is unproductive. Greene and Haidt are continuing to advance the new field of neuroethics, suggesting that both reason and emotion are involved with moral decision-making, but that perhaps emotions engage in a more dominant role, which is opposite of traditional theories. They compare Damasio’s studies of Phineas Gage with more recent studies of similar brain damaged patients, referring to their inability to effectively use ‘somatic markers.’ Although these patients were able to pass regular IQ tests and showed knowledge of social/moral circumstances, they failed at playing the Iowa Gambling Test and their real-life actions proved disastrous. This shows what we have already learned (especially from Damasio): to know is not to KNOW (or act upon), information is not instinct. Green and Haidt write: “Their affective deficits render them unable to feel their way through life, which suggests that normal decision making is more emotional and less reasoned than may have believed” (518).

They also discussed patients with early childhood prefrontal damage who exhibited strong signs of egocentric, immoral behavior. They tested the same as adults except that their knowledge of moral norms was undeveloped because they weren’t old enough to learn and store that knowledge. Were the children’s actions more immoral than the adult patients? If so, does this have to do with the amount of stored moral and social knowledge? If it does, how does that work if the adults with prefrontal damage have the knowledge stored but do not use it—does just having the knowledge make them somehow less outwardly immoral—do remnants of their ‘old personalities’ seep into their everyday decisions even after brain damage occurs? This also raising questions for me concerning sociopaths. I’m assuming Green and Haidt are referring to children who literally had damage done to their brain like Gage, but what about strictly environmentally produced prefrontal damage—is this possible? Assuming that ‘true’ sociopaths come to be from environmental circumstances, do they develop prefrontal damage over time? What circumstances produce this outcome, opposed to other possible diseases and mental illnesses? Greene ad Haidt touch on this when they note that case studies of people who have exhibited violent criminal behavior have been abused as children and/or also have frontal damage. Damasio also touches on this in his article “Neuroscience and Ethics: Intersections.” He refers to adults with brain damage has having ‘acquired sociopathy,’ while early onset patients also have ‘acquired sociopathy,’ but combined with a developmental factor.

An important point that Hauser makes in his article “The Liver and the Moral Organ” is about language. We cannot forget the relationship between culture, environment, reason, emotion, and language. Hauser writes: “We are endowed with a moral faculty that operates over the casual-intentional properties of actions and events as they connect to particular consequences. We posit a theory of universal moral grammar which consists of the principles and parameters that are a part and parcel of this biological endowment. Our universal moral grammar provides a toolkit for building possible moral systems. Which particular moral system emerges reflects details of the local environment or culture, and a process of environmental pruning whereby particular parameters are selected and set early in development” (2). We must also keep in mingd that language itself has divided emotion and reason and morality, but it seems like what we are finally coming to realize, is that these three words and meanings are intrinsicly linked together.

6 comments:

Margot Kern said...

Can we be moral without having a logical capacity the way they postulate that we cannot be moral without normal emotional capacity...( having empathy)?

In how Greene and his volunteer wanted to see the moral/ decision making differences between Americans and Indians, I wonder how much has been studied between genders?

Meredith said...

I also thought that Hauser's emphasis on the connection between language and morality was really interesting, especially in considering how actions are characterized as moral or immoral . I thought it was particularly notable that none of the readings this week even attempted to define right from wrong, even though their research agendas rely on making those distinctions.

Matt Lupoli said...
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Matt Lupoli said...

The fact that emotions have a huge influence on morality is one of those findings of neuroscience that seems intuitive but is surprising and interesting nonetheless because it the idea was never that explicit - at least for me, that is. They are dependent on the frontal areas of the brain that are also involved in decision making, which is intimately related to emotions.

I like Greene's comments on the last page of the Discover article: "Once you understand someone’s behavior on a sufficiently mechanical level, it’s very hard to look at them as evil...You can look at them as dangerous; you can pity them. But evil doesn’t exist on a neuronal level.” Our moral decisions are the results of both automatic emotional processing and conscious cognition, and both of those are products of brain areas that are shaped by evolution/genetics and society. But regardless of whether a moral (and immoral) behavior stems from an automatic emotional response or a deliberative process (or, most likely, both), blame and responsibility seem to be nullified by the fact that the behavior is dependent on the individual's brain. Sociopaths and lesioned patients shouldn't be the only ones to be exonerated from responsibility. Someone with an apparently normal brain who commits an act we consider immoral must clearly have some neural difference as a result of their genes or environment. We hand out credit and blame, reward and punishment according to our thoughts and feelings about justice; this has been useful from an evolutionary perspective, but I think there's a lot to gain once we realize our accomplishments and failures, emotions or lack thereof, and moral beliefs/decisions - be they "right" or "wrong" - are the results of things over which we have no control - ie, the development, structure, and function of our brains.

EBJ said...
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EBJ said...

Margot - This study by Singer et al is relevant to your question about gender:
http://www.hsc.wvu.edu/wvucn/BlitzPDFs/Singer.pdf