Mark Wieczorek

This is interesting. Use of a drug can change a learned behavior - old fears can be wiped out.

When they tested the rats with both tones a day later, untreated animals were still fearful of both sounds, as if they expected a shock. But those treated with the drug were no longer afraid of the tone they had been reminded of under treatment. The process of re-arousing the rats’ memory of being shocked with the one tone while they were drugged had wiped out that memory completely, while leaving their memory of the second tone intact.

Read: news @ nature.com - Wipe out a single memory - Drug can clear away one fearful memory while leaving another intact.

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