Neuroanthropology

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Archive for the ‘Emotion’ Category

Antidepressants suppress identity?

Posted by gregdowney on April 16, 2008

Another interesting one from The New York Times, Who Are We? Coming of Age on Antidepressants, by Dr. Richard A. Friedman; I found this one really well done, asking more questions than it answers, but thought-provoking.

The introduction to the article lays out the central existential question posed by long-term treatment with anti-depressants, especially for patients who started on their regimens when very young:

“I’ve grown up on medication,” my patient Julie told me recently. “I don’t have a sense of who I really am without it.”
At 31, she had been on one antidepressant or another nearly continuously since she was 14. There was little question that she had very serious depression and had survived several suicide attempts. In fact, she credited the medication with saving her life.
But now she was raising an equally fundamental question: how the drugs might have affected her psychological development and core identity.

As Friedman points out, the medical testing for these pharmaceuticals doesn’t include long-term research anywhere close to the lengths of time that people are actually spending on the drugs: the longest maintenance study — done on Effexor — lasted two years.

But the more subtle issues that Friedman raises, as far as I’m concerned, are the questions of identity that are clouded by long-term anti-depressant use. He discusses one woman who was concerned about her ‘low sex drive’ and pressure from her boyfriend to have sex after eight years on libido-reducing Zoloft: ‘She had understandably mistaken the side effect of the drug for her “normal” sexual desire and was shocked when I explained it: “And I thought it was just me!”’ I can’t tell from the way Friedman writes this how he feels about the idea that an individual has a ‘normal’ sex drive, something that might exist ‘prior to’ or ‘independent of’ any outside influences, whether that influence be an anti-depressant or a particular life event or the effects of interpersonal dynamics with a partner.

The idea that the ‘anti-depressed’ state might become ‘normal,’ both in the medical sense that intervention seeks to create this state and in the sense that a patient spends so much time in the drug-influenced state that it becomes a kind of reference, suggests yet another way that cultural expectations might become biological ‘nature.’

Posted in Addiction, Emotion, Medical anthropology, Mental Illness, Sex | 3 Comments »

Bad brain science: Boobs caused subprime crisis

Posted by gregdowney on April 10, 2008

I’m too busy to be blogging right now; I’m putting in an application for academic promotion, and like much else in academe, that means reams of paper must be offered up to the cruel, fickle gods of bureaucracy. But this example of the reporting on brain imaging research, drawn to my attention by Amanda Marcotte of Pandagon’s, Using 15 college age boys and some reactionary reporting, we are able to blame the coming depression on boobage, couldn’t pass by without comment. Thank YOU Amanda for getting me worked up enough that I won’t need a morning cup of coffee to get through several hours working on my promotion application, if I can just get back to that. (Thanks also to Echidne of the Snakes.)

The article which inspired this train of commentary is ‘Sex and financial risk linked in brain,’ by Seth Borenstein, who probably needs some sort of award for this piece. I’ll let you decide:

A new brain-scan study may help explain what’s going on in the minds of financial titans when they take risky monetary gambles — sex. When young men were shown erotic pictures, they were more likely to make a larger financial gamble than if they were shown a picture of something scary, such a snake, or something neutral, such as a stapler, university researchers reported. The arousing pictures lit up the same part of the brain that lights up when financial risks are taken.

“You have a need in an evolutionary sense for both money and women. They trigger the same brain area,” said Camelia Kuhnen, a Northwestern University finance professor who conducted the study with a Stanford University psychologist.

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Posted in Brain imaging, Brain Mechanisms, Emotion, Evolution, Gender, Sex | 10 Comments »

Emotional intelligence in training

Posted by gregdowney on April 7, 2008

Although I’m not a real big fan of some of the work on ‘emotional intelligence,’ here’s an interesting short video of Daniel Goleman on Karma Tube (a positive, social change video site). As the page explains:

Daniel Goleman, author of Emotional Intelligence, asks why we aren’t more compassionate more of the time. Sharing the results of psychological experiments (and the story of the Santa Cruz Strangler), he explains how we are all born with the capacity for empathy — but we sometimes choose to ignore it.

I’m really not sure what we gain by putting ‘emotional’ with ‘intelligence’ except that it does seem to increase the importance of empathy and perceptivity for those who undersell these human capacities. That is, I think the furor of ‘EI’ is in part simply that people who normally don’t get just how crucial interpersonal savvy is suddenly notice it.

Nevertheless, Goleman is a good big picture thinker, and in this piece he points out the malleability of human empathy, a crucial consideration for neuroanthropologists. It’s important to point out training effects on these abilities so that we’re not too prone to considering them permanent ‘personality’ traits.

Posted in Developmental psychology, Education, Emotion, Human variation | 1 Comment »

Tightening your belt on your mind

Posted by gregdowney on April 3, 2008

The New York Times has an opinion piece by Sandra Aamodt and Sam Wang, Tighten Your Belt, Strengthen Your Mind, on the implications of new research on ‘willpower.’ Daniel already noted this research in his post, Glucose, Self Control and Evolution, and linked to the original research paper, Self-Control Relies on Glucose as a Limited Energy Source: Willpower Is More Than a Metaphor.

The New York Times‘ piece discusses the possibility that spending discipline necessitated by economic hard times might lead to less ‘willpower’ when confronting weight control issues. The authors write:

The brain has a limited capacity for self-regulation, so exerting willpower in one area often leads to backsliding in others. The good news, however, is that practice increases willpower capacity, so that in the long run, buying less now may improve our ability to achieve future goals — like losing those 10 pounds we gained when we weren’t out shopping.

Specifically, the research team ‘found that people who successfully accomplish one task requiring self-control are less persistent on a second, seemingly unrelated task.’ In one study, subjects were either given radishes or freshly baked chocolate chip cookies before doing a puzzle (how did they get human ethics clearance for the cookies?!). The folks who ate the radishes lasted longer and were more persistent in experimental tasks than the cookie eaters, or those who were allowed to pass on the radish appetizer.

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Posted in Brain Mechanisms, Emotion, Food & Eating, Psychological anthropology | 3 Comments »

Meditating makes the brain more compassionate

Posted by gregdowney on March 29, 2008

Blogging on Peer-Reviewed ResearchScientific American‘s Mind & Brain website has a discussion of a recent study of meditation, Meditate on This: You Can Learn to Be More Compassionate. The original research article that this piece is discussing, ‘Regulation of the Neural Circuitry of Emotion by Compassion Meditation: Effects of Meditative Expertise’ by Antoine Lutz, Julie Brefczynski-Lewis, Tom Johnstone, and Richard J. Davidson, is available on-line at the Public Library of Science (here).

The research team investigated the activity of the insula and anterior cingulate cortices, areas implicated in empathetic reactions to others’ suffering, when people voluntarily sought to feel compassion. In other words, the research team looked at whether a set of brain areas which are active when people see other people suffering and feel empathy might be intentionally activated in situations where subjects imagined compassion; could will or conscious thought be used to summon up brain activity that looks like a reaction to suffering that is almost automatic in most people? (Lots of caveats here, but you get the gist.)

In particular, the team was looking at whether compassion meditation might make people more likely to have strong reactions to hearing the signals of another person’s distress; from the abstract, ‘Our main hypothesis was that the concern for others cultivated during this form of meditation enhances affective processing, in particular in response to sounds of distress, and that this response to emotional sounds is modulated by the degree of meditation training.’ Specifically, the research team compared novice meditators to ’16 long-term Buddhist meditators, whom we classified as experts’: ‘Experts had previously completed from 10,000 to 50,000 hours of meditative training in a variety of practices, including compassion meditation, in similar Tibetan traditions (Nyingmapa and Kagyupa).’

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Posted in Emotion, Meditation | 6 Comments »

Contagious stress and children redux

Posted by gregdowney on March 24, 2008

Sandy G at The Mouse Trap reviews my earlier post on how parents’ stress can affect their children in a posting entitled Stress contagion: from parents to the child? It’s a thoughtful response — thanks, Sandy G. And there’s lots more interesting stuff at The Mouse Trap to check out for our readers. I especially enjoyed a rambling, but incredibly engaging piece, Catch 22: Psychosis, Culture and the Mind Wars; it’s a great read with so many fruitful tangential thoughts that I may have to come back and post on it again.

Sandy G. does a nice job of summarizing the four channels I suggest might be operative in transmitting stress effects to children from their parents. I think he unfairly dismisses the ‘other communication channels’ (#3); there’s some evidence, including even cross-species effects, that there are ways we affect each other’s emotional states that are not imitation and ‘chameleon’ effects. I give the example of pheromones, but that’s not the only way that this could happen. But, fair enough, Sandy doesn’t think it’s plausible, I do. The evidence is hardly conclusive so this kind of disagreement is exactly the sort of thing we need to inspire new research (‘SandyG laughed at my theories… wahahahaha, this will show him!’).

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Posted in Emotion, Links, Stress | 1 Comment »

The history of mind-altering mechanisms

Posted by gregdowney on March 16, 2008

Katherine MacKinnon of St. Louis University just dropped me a line to point out a recent book review in The New York Times, I Feel Good, by Alexander Star. Star reviews the book, On Deep History and the Brain, by Daniel Lord Smail (University of California Press). Amazon raters are giving it 4.5 stars at the moment, if you want to check it out through the bookseller. Normally, I’d trust Daniel to write our best stuff about ‘mind-altering’ chemicals of all sorts, but this book review just set me to thinking, so I thought I’d put my own two cents in.

Smail wants to tell the story of humanity as a series of ‘self-modifications of our mental states,’ according to the reviewer Star:

We want to alter our own moods and feelings, and the rise of man from hunter-gatherer and farmer to office worker and video-game adept is the story of the ever proliferating devices — from coffee and tobacco to religious rites and romance novels — we’ve acquired to do so. Humans, Smail writes, have invented “a dizzying array of practices that stimulate the production and circulation of our own chemical messengers,” and those devices have become more plentiful with time. We make our own history, albeit with neurotransmitters not of our choosing.

Smail is really a historian, but his venture into a kind of neuro-history shows the robustness of the emerging awareness that the brain is shaped by what humans do. Star points out that most ‘macro-history’ these days — long, sweeping accounts of human evolution and what is sometimes called something prosaic like the ‘rise and fall of civilizations’ — is not being written by historians, but rather by folks like Jared Diamond. In contrast, Smail is a medieval historian.

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Posted in Addiction, Animals, Cultural theory, Emotion, Evolution, Food & Eating, Neural plasticity | Leave a Comment »

Decision Making and Emotion

Posted by dlende on March 3, 2008

Economists and policy makers are coming to the realization that rationality, in its multiple forms, doesn’t always explain why people make the decisions that they do.  By rationality, I mean both the assumption of “economic man” (a utilitarian cost/benefit analyzer) and the emphasis on education and knowledge as the privileged means of shaping behavior.   

Let’s take three recent headlines: “Why Sadness Increases Spending,” “Craving the High That Risky Trading Can Bring” and “Teenage Risks, and How to Avoid Them.”  All point to the role of emotion in decision making (any surprise here?). 

The first article states, “A research team [of Cynthia Cryder, Jennifer Lerner, and colleagues] finds that people feeling sad and self-focused spend more money to acquire the same commodities than those in a neutral emotional state.” 

The second provides an Aristotelian summary: “The findings, while preliminary, suggest — perhaps unsurprisingly — that traders who let their emotions get the best of them tend to fare poorly in the markets. But traders who rely on logic alone don’t do that well either. The most successful ones use their emotions to their advantage without letting the feelings overwhelm them.” 

The third tells us, “Scientific studies have shown that adolescents are very well aware of their vulnerability and that they actually overestimate their risk of suffering negative effects from activities like drinking and unprotected sex…  ‘It now becomes clearer why traditional intervention programs fail to help many teenagers,’ Dr. Valerie Reyna and Dr. Frank Farley wrote. ‘Although the programs stress the importance of accurate risk perception, young people already feel vulnerable and overestimate their risks.’  In Dr. Reyna’s view, inundating teenagers with factual risk information could backfire, leading them to realize that behaviors like unprotected sex are less risky than they thought. Using an analytical approach of weighing risks versus benefits is ‘a slippery slope that all too often results in teens’ thinking that the benefits outweigh the risks,’ she said.” 

This type of research provides small steps forward vis-à-vis traditional Western assumptions about decision making and rationality.  But my question is, Why don’t they go further?  Why do they simply seem to affirm our common sense view of the world? 

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Posted in Decision Making, Emotion | 6 Comments »

Cracks in Our Rose-Tinted Glasses?

Posted by dlende on February 21, 2008

In the last week, several media outlets have addressed research that presents an alternative view on the happy emphasis on positive psychology and self-help that has swept through America in the past few years.  I’ll just excerpt some pieces from each, not a lot of commentary this time. 

First, three pieces from Sharon Begley’s article “Happiness: Enough Already” in Newsweek: http://www.newsweek.com/id/107569 

Excerpt #1: While careful not to extol depression—which is marked not only by chronic sadness but also by apathy, lethargy and an increased risk of suicide—[Diener] praises melancholia for generating “a turbulence of heart that results in an active questioning of the status quo, a perpetual longing to create new ways of being and seeing.” This is not romantic claptrap. Studies show that when you are in a negative mood, says Diener, “you become more analytical, more critical and more innovative. You need negative emotions, including sadness, to direct your thinking” 
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Posted in Emotion, Philosophy, Psychological anthropology | Leave a Comment »

Anger and Healing

Posted by dlende on February 21, 2008

Anger slows healing process after injury: study” is one of today’s headlines.  Here’s the main point:

Researchers at the University of Ohio inflicted minor burns on the forearms of 98 volunteers who were then monitored over eight days to see how quickly the skin repaired itself… The results were startlingly clear: individuals who had trouble controlling expressions of anger were four times likelier to need more than four days for their wounds to heal, compared with counterparts who could master their anger.

 Anger, not surprisingly, is more nuanced than an on/off state.  “Subjects described as showing ‘anger out’ (regular outbursts of aggression or hostility) or ‘anger in’ (repressed rage) healed almost as quickly as individuals who ranked low on all anger scales.”  

Indeed only one group had significantly slower healing:

Only those who tried but failed to hold in their feelings of upset and distemper took longer to heal. This same group also showed a higher secretion of the stress hormone cortisol, which could at least partly explain the difference in healing time, the study noted… High levels of cortisol appears to decrease the production at the point of injury of two cytokines crucial to the repair process, suggests the study. Cytokines are proteins released by immune-system cells. They act as signallers to generate a wider immune response.

 So, it is not so much “anger” that matters, but anger management.  Trying and failing is the key variable, not so much anger itself.  That appears to be what is stressful, the lack of control and the uncertainty, rather than experiencing anger itself. 

Here’s the abstract of the original article.

Posted in Emotion, Medical anthropology, Stress | Leave a Comment »

 
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