Pah-tee with Pinkah, and a new symbol of secularism

October 30, 2013 • 6:45 am

As I noted yesterday, Steve Pinker was here on campus giving a talk on his new book: The Better Angels of Our Nature: Why Violence has Declined.  It was the George and Marie Andros Lecture, a fancy endowed gig, and the Adroses (Androsi?) were both in attendance; George is a cardiovascular surgeon who was once here but retired and moved to Los Angeles.

When I noted that I was going to pah-tee with Pinkah, some of you petulant and skeptical readers responded, “Pictures or it didn’t happen!”.  But would I lie to you?  Well, if you want proof, here are the pictures—and a bit of commentary. There’s a nice surprise at the end.

I went early, for I knew it would be crowded, as it indeed was: standing room only, so people (contra fire regulations) were sitting in the aisles. On my way to the venue—the room where I taught introductory evolution—I saw this figure from behind. It could be only one person.  The hair! The hair!

Walking enlarged

Natty as always, Pinker was clad in a black leather jacket, an impeccable suit (his lecturing garb), and a unique set of footwear (you know where I’m going here).

He spent about 10 minutes looking over his slides, very intently, as people filed in. I went about 25 minutes early to get a good seat.

Intent

The lecture was, as we’ve come to expect from Steve, superb. Wonderfully organized, with slides that were concise and not busy, and a comprehensive presentation of the data on violence, the explanations for why it’s declined, both proximal and “ultimate”, and the lessons one can draw from the decline.  I was amazed he could do this in an hour.  Of course he spoke in full paragraphs, with no “umms” or “errs.”

There was time for only three questions at the end, which is sad because Steve excels at Q&A. The first one was good: if violence has declined, why are we more worried about it these days? (Two examples are how parents won’t let their kids play outside anymore, and the universal fear of flying induced by terrorism.) His response was good: although violence has declined, it’s broadcast more widely due to social media, and so we’re more aware of it. Too, the news doesn’t play up the decline in violence. As Steve said, “No reporter is shown standing in Belgium and saying, ‘Well, we haven’t had any wars here for 70 years.”  Also, he argued, humans tend to be risk-averse, so that, when they are thinking about, say, their kids, they concentrate on the numerator in the “violent incidents/all opportunities” fraction. When taking a car rather than a plane, they think about a plane crash that killed 300 people, but cars are far more dangerous; it’s just that no car crash kills 300 people.

I have to say that I am appalled at how closely parents monitor their kids these days. When I was a kid I’d just get on my bike and ride away from home for hours, or go long distances to play and meet friends. That doesn’t happen any more, and yet the incidence of violence to children, and kidnapping, is much lower now than when I was young. I would have greatly chafed at not being allowed to roam freely as a child.

After the talk we repaired for dinner to the Smart Museum, the University of Chicago’s art museum, which had some new exhibits, including a whole series of salacious photographs (I declined to photograph Steve in front of a giant penis photo). Steve, like Andros and me, is an avid photographer, and you can find a selection of his photos on his website.

On arriving at the Museum, we found a lovely table set for the small group of us. I quickly downed two glasses of Pouilly-Fuisse and toured the galleries, but not before photographing the table.

Table

Before dinner, we took a tour of the museum. There were lots of pictures of naked people, including a nude woman with vegetables all over her body, and a movie of a man fondling his paternal apparatus, but I found this falcon sculpture, from Egypt (made shortly before the Christian era) far more inspiring:

Falcon

Time for dinner! We all had placecards and a menu; I was seated at the end of the table so I had a good view, as well as amiable dinner companions. Here’s the list of upcoming noms and my placecard (click to enlarge):

Menu

The first course was butternut squash soup with Granny Smith apples and snipped chives. It was superb, especially with the Pouilly-Fuisse (I later moved on to the Bordeaux, though I prefer white with fish):

Soup

Next: A large chunk of beautifully cooked Alaskan halibut served with green peppercorn sauce, wild mushrooms, and what they called “sea beans,” which I gather is some kind of seaweed (it was delicious). Does anybody know what that is?:

Halibut

Dessert: a poached pear with strawberries and dark chocolate sauce, served with one of those chocolate-filled stick thingies. By this time I’d had quite a bit of wine and was feeling expansive:

Strawberries

The dinner in full swing. I didn’t get to meet everyone, so I can’t give all names. To Steve’s right is Mrs. Andros, one of the donors of the lecture series, and to her right is Conrad Gilliam, the Dean for Research at the University of Chicago and one of the committee who, under the Andros’s advisement, selected Steve as this year’s lecturer.

table full

After dinner Steve and I repaired to my office for a bit more libation. As real guys, we decided to eschew wine and have a few brewskis. And, as real guys tend to do when they get together and let their hair down (the latter task impossible for Pinker), we talked about free will, multiverses, theology—you know, the stuff guys always talk about over a few beers—and boots!

For Steve has taken to wearing cowboy boots, which he quite likes for their looks and the way they change your gait. (The cowboy boot expert Jennifer June says they make you “walk like you mean it”.) I was, of course, enormously pleased to see this, and showed Steve my own ostrich-belly boots, which he admired.

Steve was wearing a pair of caiman boots that he acquired in Texas, and I made him pose with them in my office.  He’s a neophyte with boots (I think he has only a handful of pairs), so, as owner of more than 100, I gave him some tips.

Talking to Steve, particularly when you’re tired and a bit tipsy, is an intense experience. He, too, was tired, but his brain was fully engaged. It’s like having a conversation with two people at once: that’s how fast you have to think.  Pinker has two conversational characteristics that I much admire: he seems to retain everything he’s ever learned or written, and he is fast on his feet, able to recall relevant data or references on the spot. His fund of knowledge seems inexhaustible, and if you want to feel intellectually slow, have a chat with him! But it was great fun.

And—his boots:

Place

I now proffer the suggestion that atheists adopt cowboy boots as their official footwear. It’s time to reclaim this unique American dress item from the rednecks, Republicans, goddies, and evolution-deniers who have monopolized them!

As Steve’s limo was late, we spent another 20 minutes sitting on the curb waiting for the car. There I found that he’s on sabbatical, finishing his next book, which will be on writing and appear next year. He and Rebecca Goldstein are at Dartmouth, where Rebecca has a visiting faculty position for a year.  I expressed amazement that Steve could turn out books so fast (apparently he doesn’t revise as anally as I do, as my prose for books and article isn’t readable until after a dozen revisions, whereas he seems to write nearly first draft), and Steve claimed, in return, that he could never write stuff on a website as fast as I do (this is always first draft with just a tad of revision thereafter).

I took the opportunity to ask Steve what book he was proudest of. His answer was immediate: How the Mind Works (1997), as he said that it contained a lot of his thinking about the brain, and ideas that he considered novel. He was only 43 when he wrote it.

It was a lovely evening, and I’m grateful to not only Steve, but the Andros family, the organizing committee, and the woman (whose name, unfortunately, I can’t remember) who organized the logistics, including the wonderful dinner. The quality of food was much higher than one usually gets at a University event, and of course the company was first rate.

And—how often do I get to combine secularism, boots, and food in one post?

ADDENDUM:

I asked Steve to sign my copy of WEIT that’s already been signed by everyone at the Moving Naturalism Forward conference, as well as Kelly Houle, who illuminated some of the book with her art, and Ben Goren, who added a genuine pawprint from his cat Baihu. Everyone has said a few words about naturalism in their autograph, and here’s Steve’s. He says it’s a bit of linguistic fun, and I guess he’s showing the phylogeny of his names.  I’m surprised that “Pinker” groups with “Arthur,” but what do I know:

P1040678

And an example of some of the illustration added to the book by Kelly Houle. We’ll auction off the book on eBay soon; all proceeds will go to Doctors without Borders.

Illumination

Wednesday: Hili dialogue

October 30, 2013 • 4:21 am
Hili seems to be becoming a bit more philosophical—like her pensive predecessor Pia the Cat (there were hundreds of Pia dialogues as well).  Here Hili espouses the philosophy of Sartre.
Hili: It’s absurd.
A: What is absurd?
Hili: Such a big kitchen and nobody there to fill my bowls.
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In Polish:
Hili: Absurd.
Ja: Co jest absurdem?
Hili: Taka duża kuchnia i nikogo, żeby mi napełnił moje miseczki.

Readers’ cats: Finding Nemo

October 29, 2013 • 2:26 pm

Reader Heather sends us a picture of her foundling kitten with a d*g (note her proper spelling of the canid species):

This is a picture of our orphaned kitten Nemo (about 3 weeks) napping with his new ‘mom’ Mojo (2 year old male neutered d*g).  Nemo adores his new ‘mom’ and Mojo cuddles and cleans him just like his real mom would!

MojoNemoSleeping

“I have this disease”: Feynman on curiosity and the wonders of life

October 29, 2013 • 12:52 pm

This is about as good a statement of what motivates scientists as I’ve ever heard. It’s by Feynman, of course, but, unlike some science popularizers who seem to deliberately overdo the “wonder” stuff, what Feynman said always rang true.

Listen to a “spiritual determinist”:

I’ll add this quote from H. L. Mencken:

“The value the world sets upon motives is often grossly unjust and inaccurate. Consider, for example, two of them: mere insatiable curiosity and the desire to do good. The latter is put high above the former, and yet it is the former that moves one of the most useful men the human race has yet produced: the scientific investigator. What actually urges him on is not some brummagem idea of Service, but a boundless, almost pathological thirst to penetrate the unknown, to uncover the secret, to find out what has not been found out before. His prototype is not the liberator releasing slaves, the good Samaritan lifting up the fallen, but a dog sniffing tremendously at an infinite series of rat-holes.”

h/t: Matt

“Pah-tee with the Pinkah!”

October 29, 2013 • 9:52 am

The title above is how one friend reacted, using a mock Boston accent, when I mentioned that Steve Pinker will be lecturing on campus today, and I’ll be dining and quaffing with him afterwards.

If you’re on campus, or in the area, come by, as the lecture is free. (It’s in the room where I teach undergraduate evolution.) I suggest coming by early as it’s bound to be packed. As you see, he’ll be talking about his last book (not counting the new anthology), and the lectureship is an endowed and prestigious one:

Picture 6

There’s a dinner for a few of us Pinker groupies thereafter. And then, I’m told, Pinkah and I will retire somewhere to have a quiet libation, and I’ll hit him up to sign the copy of WEIT that was signed by many luminaries at the Moving Naturalism Forward conference. That copy, which you can see here, has now been illustrated and illuminated by artist Kelly Houle (“The Illuminated Origin”), so it’s a gorgeous book.  Kelly and I will be putting it on eBay for auction soon, and the proceeds will go to Doctors Without Borders.  I’ll try to get a few more signatures of atheists and naturalists; if I can get Sam Harris’s, it will contain all three living Horsepersons, as well as a Nobel Laureate (Steve Weinberg), and other notable heathens.

stevenpinker
Pah-tee on!

Are primates hard-wired to be scared of snakes?

October 29, 2013 • 9:39 am

Posting will be light today as there’s a Horseman afoot (see next post), but I wanted to call attention to a paper that’s of some interest. It can even be construed as a decent bit of research on (horrors!) evolutionary psychology.

The paper by, Quan van Le et al. in Proc. Nat. Acad. Sci. USA (reference and download below), suggest that selection has molded primate brains to render them particularly sensitive to snakes.  I won’t be able to do it justice in the time I have to write, but let’s have a look.

The authors implanted electrodes in individual neurons of brains of three macaque monkeys (Macaca fuscata) and then did recordings from the neurons as the monkeys were exposed to four sets of pictures: snakes, angry monkey faces, monkey hands, and other geometrical shapes, like circles. The monkeys had been trained to look at the screen, and were rewarded when they did.  The authors’ “Snake Detection Theory” (“SDT”; what a name!) led them to hypothesize that these neurons—in a region of the brain called the “medial and dorsolateral pulvinar”, a region unique in primates—would respond especially quickly to images of snakes.  The pulvinar has been shown to be involved in visual processing of information from the eyes, and, as the authors note, “fast processing of threatening images.”  This hypothesis is of course based on the supposition that primates have an innate fear of snakes (these monkeys were reared in captivity and never exposed to snakes), a fear bred into them by natural selection. Those monkeys who weren’t especially attentive to snakes, the SDT suggests, were those monkeys who didn’t leave descendants! That would lead to natural selection for more attentiveness, perhaps detectable by neuronal response.

What the authors found supports the SDT, but weakly.  Of the 91 neurons tested with all stimuli, 37 were more sensitive to snake images, 26 to angry-face images, 17 to hand images, and 11 to shape images. That is weakly significant (hash mark), but only if you use the p < 0.1 criterion that is used in psychology but not biology (we use p < 0.05, and physicists are far more stringent).  Here’s the figure from their paper showing that snake neurons are more numerous (A), have a higher magnitude of response than the other categories of neurons (B), and have a lower latency of response than other categories (C; i.e., they respond faster). The brackets show the groups compared, and an asterisk or hash sign over a bracket means the comparison is significant.

Picture 5

As expected, then, “snake neurons” were more numerous and more sensitive to the relevant stimuli than neurons in the other three groups, and in second place was the number and response of “angry monkey face” neurons, which I suspected from the outset since monkeys are surely selected to be attentive to each other’s expressions.

There were other experiments as well, involving scrambling the images, and these supported the main result.  I won’t go into more detail except to say that these result are suggestive, although the higher probabilities involved in some comparisons, particularly those of “hand” versus “face” neurons, are a bit worrisome.  The authors conclude:

. . . since the origin of primates, snakes have been a universal threat; both primates and snakes that can kill them (i.e., constrictors and venomous snakes) have their greatest diversity in tropical ecosystems (1, 2, 40, 41). Our data provide unique neuronal evidence supporting the hypothesis that snakes provided a novel selective pressure that contributed to the evolution of the primate order by way of visual modification (2, 5). We urge neurophysiologists to engage in similar studies across a wide range of primate species and closely related mammals to further examine the phylogenetic fingerprint of fast snake detection.

Now there’s an easier way to see if primates are innately scared of snakes: just expose a bunch of naive primates to snakes versus other animals, or snake-toys versus other kinds of toys, and see if they show a fright reaction. The authors mention that this has been done: snakes are detected “visually more quickly than innocuous stimuli” in both humans and other primates. What the authors show here is, perhaps, the neurological basis for that difference.

As they say, this study needs fleshing out with more species, especially those species that have never encountered snakes during their evolution. Maybe mammals are attentive to long skinny things for other reasons. But it’s a start, and it’s the kind of evolutionary psychology that I consider pretty good. My last statement will, of course, immediately trigger a group of quibblers to find faults with this work.  But you have problems with the paper, take them up not with me but with David Hillis, who was the editor on this one—and a reader here!

One more thing: they need to do studies like this with spiders, too—at least judging by the reaction of our commenters this week!

_____________

Van Le, Q., L. A. Isbell, J. Matsumoto, M. Nguyen, E. Hori, R. S. Maior, C. Tomaz, A. H. Tran, T. Ono, and H. Nishijo. 2013 Pulvinar neurons reveal neurobiological evidence of past selection for rapid detection of snakes.
Proceedings of the National Academy of Science, early edition: 10.1073/pnas.1312648110

Ohio State band does the Hollywood blockbusters

October 29, 2013 • 5:09 am

This wonderful video of the Ohio State University marching band performing at halftime of OSU’s game with Penn State was made just last Saturday, but already has over four million views on YouTube. Watch and see why. It’s a tribute to Hollywood’s blockbusters.

Don’t miss the T. rex nomming the bandleader; that parts starts at about 5:59.

The YouTube notes include this:

Coming off of their Michael Jackson Tribute show, students had a week to learn the drill associated with this show and a little over a week to learn the music.

And don’t forget they’re playing their instruments as they make the figures!

h/t: Chris

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