Visual Rewards

Blogging on Peer-Reviewed ResearchWhy will we study a favored painting again and again?  Or gaze on our lover’s face with such pleasure, even after years and lines have mounted?

 I came across an article, “Perceptual Pleasure and the Brain,” by Irving Biederman and Edward Vessel in American Scientist.  They studied the distribution of mu-opioid receptors, associated with the modulation of pleasure and pain, in the visual cortex.  Their basic result: “The receptors are sparsest in the early stages of this [central visual] pathway, the so-called V1 to V4 areas, where an image is processed as local bits of contour, color and texture.  Intermediate stages of visual processing, such as the lateral occipital area and ventral occipito-temporal cortex, which integrate local information to detect surfaces, objects, faces and places, contain greater number of opioid receptors.  The receptors are densest in the later stages of recognition, in the parahippocampal cortex and rhinal cortex, where visual information engages our memories.”

 Thus, they argue, “a visual stimulus that elicits many episodic or semantic memories should be more pleasing (or more interesting) than a stimulus that brings forth fewer mental associations.” 

Continue reading “Visual Rewards”

The Boston Globe on embodied cognition

How often do you read a piece in the newspaper that explicitly makes reference to Maurice Merleau-Ponty? Can’t say that I ever had until I stumbled across this article, ‘Don’t Just Stand There, Think,’ on embodied cognition by science writer Drake Bennett in The Boston Globe. It’s all over the map, making brief references to a host of different research projects, some of them more obviously anti-Cartesian than others. The piece might make an excellent entry point for people wanting to introduce others to the significance of embodiment for human cognition.

In particular, the article discusses a number of examples that highlight the ways in which cognition makes use of motor capacities and perceptual abilities, rather than simply being just some disembodied form, such as logic, signification, or recall. Aside from more obvious cases where embodiment affects thought, Bennett briefly touches on some of the more counter-intuitive cases:

A few [neuroscientists, linguists, and philosophers] argue that human characteristics like empathy, or concepts like time and space, or even the deep structure of language and some of the most profound principles of mathematics, can ultimately be traced to the idiosyncrasies of the human body. If we didn’t walk upright, for example, or weren’t warm-blooded, they argue, we might understand these concepts totally differently. The experience of having a body, they argue, is intimately tied to our intelligence.

Bennett makes references to mirror neurons, research by Sian Beilock and Lauren Holt suggesting that athletes’ perceptions are shaped by their expertise, Susan Goldin-Meadow’s work on gesture and thought, and a number of other intriguing research projects. There’s no links to the original research reports or articles, but the interested reader could easily track them down.

In particular, one quote reminded me of Daniel’s earlier post on cultural differences in puzzle solving. Beilock, after doing research on hockey players’ ability to quickly understand photographs of hockey, came to the conclusion that, ‘People with different types of motor experiences think in different ways.’ This is a consequence of embodied cognition, and it may help to explain certain types of differences in reasoning, perception, or cognition.

The article hardly breaks new ground, but it is a very good quick summary of a lot of relevant research. I’d highly recommend it; and it will be a great one to share with friends and colleagues and anyone else who wonders what you’re on about when you mention embodied cognition.

Beyond Bourdieu’s ‘body’ — giving too much credit?

Blogging on Peer-Reviewed ResearchA while back, Daniel recommended to me that I check out an article by Mauro Adenzato and Francesca Garbarini in Theory & Psychology. It’s a great piece, and there’s a lot of positive things I could say about it. For example, Adenzato and Garbarini’s principal point is that the model of ‘mind’ as the workings of organic brain systems is inconsistent with much social theory, built instead on a treatment of mind as a kind of dis-embodied amalgamation of logical and cognitive processes. This recognition that phenomenological and cognitive mind and biological brain are inextricably linked is part of what makes neuroanthropology possible, or rather, necessary. As they write:

The embodied cognition perspective views the mind no longer as a set of logical/abstract functions, but as a biological system, which is rooted in body experience and interwoven with action and interaction with other individuals. Action and representation are no longer interpreted in terms of the classic physical–mental dichotomy, but have proven to be closely interlinked. Specifically, embodied cognition means that acting in the world, interacting with the objects and individuals in it, representing the world, perceiving it, categorizing it and understanding its meaning are merely different levels of the same relationship that exists between an organism and its environment. (Adenzato and Garbarini 2006:748) 

Adenzato and Garbarini point out that cognitive science has become increasingly concerned with grounding theories about thought and the mind in observable workings of the organic brain. Although I agree, following Clark (1997), I would refer to this movement as ‘third generation,’ rather than ‘second generation’ (as the authors do), as the first two over-arching waves in cognitive science might be termed the ‘logic machine’ and ‘connectionist’ models.I have some niggling problems with their argument, such as the ‘merely different levels’ off-handed comment, which I would dispute, and the tired technique later in the article of dragging a folk term from an ethnographic case study and showing how it’s like one’s new theoretical term, as if the natives having a word for a phenomenon is proof you’re on to something. Nevertheless, this passage is a very coherent statement, as is the whole article, of the need to incorporate more sophisticated models of the brain’s working into cultural theory.

Continue reading “Beyond Bourdieu’s ‘body’ — giving too much credit?”

Monkey Makes Robot Walk!

Where does this leave the evolution of human bipedalism?  Is there some mystery “bipedal instinct”?  A bipedal “organ” in the brain?  I’ll let you decide… 😉 

Here’s the article.  It’s a great piece about the importance of training, the relevance of a body (build it and the brain will come…), and the management of different tasks by different areas of the brain that work in conjunction.  For the culturally inclined, the study authors argue that for Idoya, the monkey in question, her “motor cortex, where the electrodes were implanted, had started to absorb the representation of the robot’s legs — as if they belonged to Idoya herself.”

Steven Pinker and the Moral Instinct

By Daniel Lende 

Steven Pinker is selling something.  Here’s what’s on the table: “the human moral sense turns out to be an organ of considerable complexity.”  This organ has been built into our brains by evolution, culture-free except for how its five domains (harm, fairness, community, authority, and purity) are “ranked” and “channeled” in different places around the globe.  Ready to buy? 

Let’s sweeten the deal.  Pinker is offering his “deeper look” which will help you “rethink your answers” about life and morality.  He’s providing “a more objective reckoning” to help people get over their moral “illusions.”  And he’s got the data to show it, from people in the lab, Web sites, and brain scanners.  (I can’t help asking, these are his moral examples?  People in artificial situations, people who don’t physically interact, and a series of images?)  Continue reading “Steven Pinker and the Moral Instinct”

Loneliness and Health: Experience, Stress, and Genetics

Blogging on Peer-Reviewed ResearchFeeling lonely?  Well, that might make you sick.  The mechanism?  Well, here’s the surprise.  Patterns of genetic expression.

 Here’s the press release from Genome Biology, “People who experience chronically high levels of loneliness show gene-expression patterns that differ markedly from those of people who don’t feel lonely.”  The study’s lead author, Steven Cole, notes: “In this study, changes in immune cell gene expression were specifically linked to the subjective experience of social distance.  The differences we observed were independent of other known risk factors for inflammation, such as health status, age, weight, and medication use. The changes were even independent of the objective size of a person’s social network. What counts, at the level of gene expression, is not how many people you know, it’s how many you feel really close to over time.”    Continue reading “Loneliness and Health: Experience, Stress, and Genetics”