Tuesday, June 15, 2004

We can rewrite you

I ran across this disturbing piece regarding false memory implantation.

"We can easily distort memories for the details of an event that you did experience," says Loftus. "And we can also go so far as to plant entirely false memories - we call them rich false memories because they are so detailed and so big."
...On average, studies show that around a third of those subjected to the "misinformation effect" wholly or partially adopt a false memory, but it seems to depend on both the person and the memory.

Unscrupulous advertisers would find value in harnessing this effect.

There's a lot more to the interaction of memory and stress in the piece. I also read about research that found interrogation impaired recognition of interrogators by the victims.

They studied over 500 soldiers, sailors and pilots at "survival schools" - three mock POW camps run by the US military, who partly funded the study. The subjects, whose mean age was 25, were being trained to withstand the mental and physical stresses of capture.
After 48 hours without food or sleep, they were subjected to intense interrogation. Half of the subjects were physically threatened, and this caused them to show all the signs of intense physiological stress - very high heart rate and levels of adrenalin and cortisol, combined with plummeting sex hormones.
Twenty-four hours after release from the camp, the subjects were asked to identify their interrogators...
The performance of all groups was abysmal. Only 30 per cent could find the right person in a line-up, 34 per cent from a photo-spread and 49 per cent from sequential photos - though the clothing cue boosted correct identification to 66 per cent. Thirty people got the gender wrong, and those subjected to physical threats were the worst at recognising their interrogator.

Memory can be fragile, and thus complicate investigations.

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