EX-1 3 w3867476c.txt JOINT FILING AGREEMENT Exhibit 1 --------- Exhibit 1 of the Original 13D is hereby amended and restated in its entirety as follows: JOINT FILING AGREEMENT THIS JOINT FILING AGREEMENT is entered into as of August 15, 2007, by and among the parties signatories hereto. The undersigned hereby agree that the Statement on Schedule 13D with respect to the shares of common stock, $0.001 par value per share, of Scientific Learning Corporation, a Delaware corporation, is, and any amendment thereafter signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of 13d-1(k) under the Securities Exchange Act of 1934, as amended. Dated: August 15, 2007 WARBURG, PINCUS VENTURES, L.P. By: Warburg Pincus Partners LLC, its General Partner By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare --------------------------------------- Name: Scott A. Arenare Title: Partner Dated: August 15, 2007 WARBURG PINCUS & CO. By: /s/ Scott A. Arenare --------------------------------------- Name: Scott A. Arenare Title: Partner Dated: August 15, 2007 WARBURG PINCUS LLC By: /s/ Scott A. Arenare --------------------------------------- Name: Scott A. Arenare Title: Member Dated: August 15, 2007 WARBURG PINCUS PARTNERS, LLC By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare --------------------------------------- Name: Scott A. Arenare Title: Partner Dated: August 15, 2007 By: /s/ Scott A. Arenare --------------------------------------- Name: Charles R. Kaye By: Scott A. Arenare, Attorney-in-Fact* Dated: August 15, 2007 By: /s/ Scott A. Arenare --------------------------------------- Name: Charles R. Kaye By: Scott A. Arenare, Attorney-in-Fact** * Power of Attorney given by Mr. Kaye was previously filed with the Securities and Exchange Commission on March 2, 2006 as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc. ** Power of Attorney given by Mr. Landy was previously filed with the Securities and Exchange Commission on March 2, 2006 as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc.