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Neuroscience Not Ready for the Courtroom

Certain neuroscience techniques are not robust enough to be used as evidence in a trial, a new report says.

By | December 14, 2011

image: Neuroscience Not Ready for the Courtroom Wikimedia Commons, Erik1980

WIKIMEDIA COMMONS, ERIK1980

It’s the stuff of science fiction: brain scans that can reveal when people are lying, or genetic analyses that predispose people to criminality. But according to a new UK Royal Society report, such neuroscience techniques aren't ready for the courtroom and should stay in the lab  for now.

Functional magnetic resonance imaging (fMRI) currently can’t reveal whether a person is deliberately lying, and would be absolutely useless against witnesses who think they are telling the truth but are mistaken, University of Cambridge experimental psychologist Nicholas Mackintosh, who headed the working group that produced the report, told ScienceInsider. The subtleties of the scientific conclusion run the risk of being glossed over by jurors who are overly impressed by a brain scan, he added.

But the report isn’t gloomy about all neuroscience in the courtroom. Brain scans may help courtrooms decide whether brain injury in children is the result of accidental injury or shaking, for instance.

And genetic data could theoretically help guide sentencing in the future, by helping to identify which criminals are at higher risk of re-offending, the report noted. For instance, studies have shown that many violent criminals who were abused as children have a variant form of the monoamine oxidase (MAO) gene. It's speculated that those with the variant may be more likely to commit future crimes, and thus may best be hit with a longer stint in jail. Even that, however, runs the risk of being very inaccurate, Mackintosh said.

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Comments

Avatar of: glenn398

glenn398

Posts: 15

December 14, 2011

You can only tell if a person is lying if such person has conscience and it seems like the human race is getting to the point where less and less bothers them

Avatar of:

Posts: 0

December 14, 2011

You can only tell if a person is lying if such person has conscience and it seems like the human race is getting to the point where less and less bothers them

Avatar of:

Posts: 0

December 14, 2011

You can only tell if a person is lying if such person has conscience and it seems like the human race is getting to the point where less and less bothers them

Avatar of:

Posts: 0

December 15, 2011

A person is NOT lying when they "think they are telling the truth but are mistaken".
I would be careful with genetic data - remember the double Y chromosome fiasco.

Avatar of:

Posts: 0

December 15, 2011

A person is NOT lying when they "think they are telling the truth but are mistaken".
I would be careful with genetic data - remember the double Y chromosome fiasco.

Avatar of: david.harrison

david.harrison

Posts: 28

December 15, 2011

A person is NOT lying when they "think they are telling the truth but are mistaken".
I would be careful with genetic data - remember the double Y chromosome fiasco.

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