Thursday, November 1, 2007

Brain Tricks

I see red pandas.

In 1978, a red panda escaped from the Rotterdam zoo. Hoping to enlist the public in finding this rare and distinctive-looking animal — it looks a bit like raccoon crossed with a small bear, but bright red — the zoo contacted the papers and stories ran in the local press with descriptions and contact information in case the poor creature was seen. Just as the story ran, the panda was found, dead.

Over the next few days over a hundred red panda sightings were reported. Keep in mind, red pandas are indigenous to tropical India, not temperate Holland. There is no chance that some other red panda was being seen and reported to the authorities. It’s also not likely that people were hallucinating, either. What is likely is that people were seeing some other animal or something else they couldn’t identify immediately, and interpreting it as a red panda.

When confronted with an unknown phenomenon, the brain immediately attempts to impose some kind of pattern or meaning onto it. Apparently, the brain can’t stand not knowing what something is. What happened in Rotterdam is that the news stories primed people to recognize anything mysterious or otherwise unexplainable as “red panda”, despite the unlikeliness. In other conditions, the template for the unknown might be an angel, Sasquatch, a UFO, faeries, or a will-o-wisp. Since the brain is working with so little evidence, it essentially makes it up, making our observations highly suspect.

Speaking of Priming

The suggestability of the brain extends to more than just the unknown and unusual. As it turns out, even everyday events can be shaped by subtle cues in our environment. In one study, two groups of subjects were asked to fill out a questionnaire, and offered a crumbly biscuit by a research assistant afterward. In the room where the survey was administered to one of the two groups, there was a hidden pail of water with a splash of cleaning fluid, filling the air with a slight scent.

The survey was a McGuffin; the real object of the study was to see what subjects would do after they ate the crumbly biscuit. What happened is this: the participants in the room where the smell of cleaning fluid hung in the air were much more likely to clean up the crumbs left by the biscuit than the others.

A subtle effect to be sure (they ought to try it with teenagers!) but a good example of what psychologists call “priming”. Priming calls on deep memory associations in the brain — like the association of the smell of cleaning products with the act of cleaning — which seems to trigger responses without any conscious awareness or intention on our part. Isn’t that great?

Hey hey, good looking!

It’s not just priming that can subtly and unconsciously affect the way we behave; as it happens, the beliefs other people have about us, even if they don’t know us, can also affect our behavior. For example, psychologists set up telephone conversations between a man and a woman. Neither could see the other. Before the conversation started, the man was shown a photograph of the woman he was going to meet on the phone. However, the photograph was actually picked randomly, and depicted either an attractive woman or an unattractive one (how this was determined I don’t know).

Men who believed they were talking with an attractive woman were much more friendly, active, and open during the conversation than men who believed they were talking to an unattractive woman. What’s more, the women — who did not know whether their partners believed they were attractive or unattractive — responded differently depending on the beliefs of their partner. Women who were believed to be unattractive were more detached, cold, formal, and even rude than those who were believed to be attractive.

Clearly these women were picking up on and responding to unconscious clues in the way their male partners spoke to them. When men were friendly and talkative, the women responded with warmth; when men were distant, women responded accordingly. But the subjects themselves did not report any difference in the way they thought they had acted — for them, they were just “normal”.

But there’s more. In interviews before the conversation took part, the men were asked to describe what they expected their partners to be like. Men who thought they were about to talk to an attractive woman said they expected her to be warm, open, friendly, and so on — which in most cases is exactly what she was. Men who expected their partner unattractive thought they would also be cold, distant, and unfriendly — and lo and behold, she was. In our minds, attractive people are better people — and apparently thinking makes it so.

“Nothing more than a dog’s breakfast”

Well, that’s brains for you — ” three and a half pounds of blood-soaked sponge” in Kurt Vonnegut’s colorful estimation. Somehow, this little bundle of nerves and fat manages to guide us through our days, most of the time without getting us killed. Along the way, though, these little quirks — and a host of others, which I’ll revisit at a later date — can cause a lot of trouble. Good people’s talents are overlooked because we don’t like the looks of them. The worst aspects of our personalities are brought to the fore because of a subtle environmental cue, like a briefcase on a table. We imagine things that aren’t there — and get offended when others have the audacity to question our observations. We find ourselves doing things with no rational explanation for why were doing them — and even worse, sometimes we don’t find ourselves doing them, we do them without even knowing!

I am not a racist!

In 1964, a woman named Kitty Genovese was beaten and killed in an attack witnessed by dozens of people, none of whom intervened. In studies to understand this phenomenon, psychologists discovered the “bystander effect” (sometimes called the “Genovese effect” after the victim), which says that the more bystanders witness an attack, the less likely it is that any individual will intervene. Each individual witness believes that someone else will intervene, and that their action is therefore not needed.

In a follow-up study to explore the effect of race in this equation, psychologists found that if a lone individual witnessed an attack by a white person on a black person, they were more likely to intervene than when they witnessed a white-on-white attack. When confronted with a racialized situation, most people feel compelled to intervene because not to intervene would make them feel like racists. In cases where other witnesses were present, the subjects were actually less likely to intervene in a white-on-black attack than similar subjects witnessing a white-on-white attack. In these instances, the presence of other potential interveners allows the subject to avoid the self-accusation of racism — they can tell themselves that they’re staying out of it because someone else will intervene, not because they’re racist.

These results are repeated in a similar study in which subjects were asked to play the part of jury member in a trial against a black defendant. Each subject was supplied with the details of the case and then watched recordings of 11 jurors explaining why they felt the defendant was guilty. In cases where the recorded jury members were all white, the subjects were very likely to find the defendant “not guilty”, feeling that the other jurors were racists and they were standing up against the other jurors’ racism. When one of the recordings was replaced by a black juror with the same argument, however, the subjects were much more likely to find the defendant “guilty”. If a black person thought the defendant was guilty, then it couldn’t be racist to agree, right?

Pay no attention to the man in the gorilla suit

In The Art of the Start, Guy Kawasaki describes a study performed with college-aged subjects in which they were asked to watch a video of several people passing a ball around and count the total number of passes and catches. At one point, a man with a gorilla suit enters the scene, thumps his chest a bit, and hangs out for 9 seconds.

After watching the video, subjects were interviewed about what they had seen. A full 50% of the students did not see the gorilla. This phenomenon is called “perceptual blindness” or “inattentional blindness”, and occurs when we become so focused on what we’re doing that we fail to see anything that does not directly play into the task at hand. We basically fail entirely to pay attention to things we don’t expect to see.

You’re such a girl!

Pity the poor college student — here’s another study involving college student subjects. In this one, male subjects were given a personality survey, after which the testers would tell them their character was especially feminine or especially masculine. The results were bogus, chosen at random, to set the subjects up for the second part of the study in which they were asked their opinions on such things as same-sex marriage, the war in Iraq, and President Bush’s performance.

Men who were told that they had “feminine” personalities were much more supportive of President Bush and of the War, and much more opposed to same-sex marriage, than the men who were told they were very masculine. In essence, one group of men were called “sissies” and felt put upon to assert and thus prove their masculinity, while the other group felt unthreatened and thus more able to respond freely.

We’re all doomed(?)

What should we do with all this? Are we simply doomed? Are we just dumb animals dominated by a couple pounds of irrational meat?

I don’t think so. We are, of course, capable of deep reasoning — consider the work of the great philosophers, brilliant scientists, and far-sighted social critics. These quirks of thought don’t undermine our rationality, they coexist with it.

Some of these gremlins in our thinking machine are the product of social conditions that we can change — but knowing they’re there and how they work is a prerequisite for that. Others are features, not bugs — anyone who has ever been deep in the “flow” of their work can attest to the value of perceptual blindness which allows us to “tune out” the inessential and distracting.

Ultimately, knowing is better than not knowing. Those of us who are committed to the idea of personal improvement think a lot about the habits that hold us back and prevent us from achieving our goals, whatever they are. Knowing that we have a tendency to see others through the prism of race and gender, that we often act in ways that only become conscious after the fact, or that might blind us to important events as well as to trivial distractions can, I think, help us to better realize our goals.

At least that’s what my brain tells me to think.

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