Removing bad memory?

Brunet A, Orr SP, Tremblay J, Robertson K, Nader K, Pitman RK.
Related Articles, Links
Abstract Effect of post-retrieval propranolol on psychophysiologic responding during subsequent script-driven traumatic imagery in post-traumatic stress disorder.
J Psychiatr Res. 2007 Jun 21; [Epub ahead of print] more here
and more here and more here
and and an article qestioning the claim here

Cognitive Enhancement: Methods, Ethics, Regulatory Challenges

Nick Bostrom
with Anders Sandberg
October 18, 2006

Cognitive enhancement comes in many diverse forms. In this paper, we survey the current state of the art in cognitive enhancement methods and consider their prospects for the near-term future. We then review some of ethical issues arising from these technologies. We conclude with a discussion of the challenges for public policy and regulation created by present and anticipated methods for cognitive enhancement.

Link to Source

Scientists identify brain’s concept control core

Wed Sep 6, 2006 12:41 PM BST

By Jeremy Lovell

NORWICH (Reuters) – Scientists believe they may have finally identified the part of the brain that deals with the critical issue of matching words to everyday objects.

Using brain scans of people suffering from Semantic Dementia — the second most common form of dementia after Alzheimer’s disease in people under 65 — they have found that the front end of the temporal lobe seems to be crucial to conceptual application.
Reuters