Erratum

In the article “Certain Inhibitors of Synthetic Amyloid β-Peptide (Aβ) Fibrillogenesis Block Oligomerization of Natural Aβ and Thereby Rescue Long-Term Potentiation,” by Dominic M. Walsh, Matthew Townsend, Marcia B. Podlisny, Ganesh M. Shankar, Julia V. Fadeeva, Omar El Agnaf, Dean M. Hartley, and Dennis J. Selkoe, which appeared on pages 2455-2462 of the March 9, 2005 issue, the country listed for the second affiliation is incorrect. The correct affiliation information is as follows: “Laboratory for Neurodegenerative Research, The Conway Institute for Biomedical and Biomolecular Research, University College Dublin, Dublin 4, Republic of Ireland.”