It's a Monday morning, sometime in the future, and you're about to pick a jury. You're a little slower, a little bulkier than you were back in 2007, but in front of you at counsel table are your usual materials: a chart to make your notes on, the written juror questionnaires, a list of topics you want to cover, the jurors' brain scans . . .
You've arrived in a world you first glimpsed when you read Jeffrey Rosen's article "The Brain On The Stand: How Neuroscience Is Transforming The Legal System" in the March 11, 2007 New York Times Magazine. You were minding your own business on a Sunday morning, perhaps thinking you might do the crossword puzzle, when the bright and viscous brain-cell illustrations caught your eye and you began to read.
Not just for criminal defense anymore
If you're not a criminal lawyer, you probably assumed the article didn't relate much to your practice. The opening anecdote told of a murder defendant in the early 1990s who argued that he could not control his actions because of a cyst in his brain. The new term "neurolaw," Rosen explains, has been used to describe the growing use of brain imaging and neuroscience in criminal defense.
Then came a sentence that made you refill your coffee:
Proponents of neurolaw say that neuroscientific evidence will have a large impact not only on questions of guilt and punishment but also on the detection of lies and hidden bias, and on the prediction of future criminal behavior.
That's lies, as in witnesses, and hidden bias, as in jurors. This is about all of us. In his extensive discussion, Rosen sets out at least two ways that brain scans and other neurological tools could make their way into any courtroom and be used on practically any person in it.
Selecting the best brain scans
Serious researchers think brain scans might predict what jurors will do. To explore this, Rosen visited Owen Jones, a Vanderbilt law professor who "is turning Vanderbilt into a kind of Los Alamos for neurolaw." Rosen let Jones hook him up to an MRI scanner, where he pushed buttons to indicate how he would punish wrongdoers in various situations. After "45 minutes trying not to move an eyebrow while assigning punishments to dozens of sordid imaginary criminals," Rosen got his results:
“Your head movement was incredibly low, and you were the harshest punisher we’ve had,” Josh Buckholtz, one of the grad students, said with a happy laugh. “You were a researcher’s dream come true!” . . . Marois emphasized that my punishment ratings were higher than average. In one case, I assigned a 7 where the average punishment was 4. “You were focusing on the intent, and the others focused on the harm,” Buckholtz said reassuringly.
Jury consultants have devoted many insightful words to describing the "punitive juror." Is Rosen's brain picture worth more than them all? Owen Jones thinks that prefrontal cortex activity "could be highly relevant for lawyers selecting a jury":
For example, [Jones] suggested, lawyers might even select jurors for different cases based on their different brain-activity patterns. In a complex insider-trading case, for example, perhaps the defense would “like to have a juror making decisions on maximum deliberation and minimum emotion”; in a government entrapment case, emotional reactions might be more appropriate.
“[I]t’s mind-boggling,” one scholar told Rosen. No argument there.
I cannot tell a lie (anymore)
Once we've selected these brain-scanned jurors, we'll still have to convince them that our witnesses are telling the truth. That won't be a problem, say the neuro-proponents. While Rosen was in the Vanderbilt MRI, the researchers took data that let them read his mind:
[Vanderbilt neuroscientist René] Marois told me through the intercom to try another experiment: namely, to think of familiar faces and places in sequence, without telling him whether I was starting with faces or places. I thought of my living room, my wife, my parents’ apartment and my twin sons, trying all the while to avoid improper thoughts for fear they would be discovered.
As the researchers hoped, Rosen's parahippocampus (I'm just typing what I see here) was "lighting up like Christmas on all cylinders” when he thought of places, while his fusiform area "lighted up every time I thought of a face." Marois "pointed to a series of practical applications:"
Because subconscious memories of faces and places may be more reliable than conscious memories, witness lineups could be transformed. A child who claimed to have been victimized by a stranger, moreover, could be shown pictures of the faces of suspects to see which one lighted up the face-recognition area in ways suggesting familiarity.
From there, the next step is neurological lie detectors, and they're in development. Rosen describes two neuroimaging lie-detection technologies; one compares subjects' reactions to their own prior patterns (and might detect "not only lies but also honest cases of forgetfulness"), while the other compares "the brain activity of liars and truth tellers." The president of Cephos Corporation, which plans to sell one of these products soon, told Rosen, “We have two to three people who call every single week. They’re in legal proceedings throughout the world, and they’re looking to bolster their credibility.”
No stopping the "CSI effect" now
Rosen hints at another phenomenon we can expect from neurolaw. Where it's not used in the courtroom, jurors might come to expect it, just as they expect fingerprints and DNA evidence today:
Even if witnesses don’t have their brains scanned, neuroscience may lead judges and jurors to conclude that certain kinds of memories are more reliable than others because of the area of the brain in which they are processed.
Long before neuroimaging lie detectors come to your county courthouse, you can be sure they'll show up on CSI, in the popular imagination, and in your jurors' unspoken beliefs about what lawyers ought to be showing them.
_______________
Related notes and sources:
1. Jeffrey Rosen is the legal affairs editor for The New Republic magazine, a law professor at George Washington University, and according to the Los Angeles Times, "the nation's most widely read and influential legal commentator." His current book is “The Supreme Court: The Personalities and Rivalries That Defined America.”
2. For more on the implications of the new neuroscience outside the courtroom, a comprehensive article is "Brave Neuro World: The Ethics of the New Brain Science," by Kathryn Schulz, in The Nation last January. (Dogged researcher that I am, I stumbled on this article because I hoped I could call this post "Brave Neuro World." The phrase was taken, but the article is good.)
3. For an overview of how jury consultants work now, see Matthew Hutson's article "Unnatural Selection" in the current issue of Psychology Today. The article is the result of interviews with the jury consultants in some of the most prominent trials of the last few years. I'll write more fully about it later in the week.
4. As this blog enters its second month, I owe thanks to Anne Skove and her spirited Jur-E Bulletin, Prof. Suja Thomas, Eric Turkewitz at New York Personal Injury Lawyer Blog, Rush Nigut at Rush on Business, the learned folks at Empirical Legal Studies Blog and the Civil Procedure Prof Blog, designer Mike Rohde, and the generous trial consultants at ASTC for helping a newcomer along.
(The amazing brain image is by moujemouje at http://www.flickr.com/photo_zoom.gne?id=321779822&size=o; license details there)