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                                                                    EXHIBIT 10

                                POWER OF ATTORNEY

         The undersigned, General Electric Capital Services, Inc., a Delaware
corporation (hereinafter referred to as the "Corporation") does hereby make,
constitute and appoint the persons listed below as the Corporation's true and
lawful agent and attorney-in-fact (hereinafter referred to as the "Attorney") to
act either together or alone in the name and on behalf of the Corporation for
and with respect to the matters hereinafter described.

                  Name of Attorney:              Michael A. Gaudino
                                                 Robert O. O'Reilly, Sr.
                                                 Murry K. Stegelmann
                                                 James Ungari
                                                 Preston Abbott
                                                 Leon E. Roday
                                                 J. Gordon Smith
                                                 Michael E. Pralle
                                                 Iain MacKay
                                                 Jonathan K. Sprole
                                                 Barbara J. Gould
                                                 Robert L. Lewis
                                                 Wendy E. Ormond
                                                 Mark F. Mylon

         Each Attorney shall have the power and authority to do the following:

         To execute and deliver any Schedule 13D, Schedule 13G or Forms 3, 4,
         and 5 or any amendments thereto required to be filed with the
         Securities and Exchange Commission under the Securities Exchange Act of
         1934 on behalf of the Corporation with regard to any securities owned
         by the Corporation, General Electric Capital Corporation or any of
         their subsidiaries;

         And, in connection with the foregoing, to execute and deliver all
documents, acknowledgments, consents and other agreements and to take such
further action as may be necessary or convenient for the Corporation in order to
more effectively carry out the intent and purpose of the foregoing.

         Agreements, commitments, documents, instruments, and other writings
executed by the Attorney in accordance with the terms hereof shall be binding
upon the Corporation without attestation and without affixation of the seal of
the Corporation. The Power of Attorney conferred hereby shall not be delegable
by any Attorney. The Attorney shall serve without compensation for acting in the
capacity of agent and attorney-in-fact hereunder.

         Unless revoked by the Corporation, this Power of Attorney shall be
governed under the laws of the State of New York and the authority of the
Attorney hereunder shall terminate on March 31, 2002.

                                   Exhibit 10-1

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         IN WITNESS WHEREOF, the Corporation has caused this Power of Attorney
to be executed, attested and its corporate seal to be affixed pursuant to
authority granted by the Corporation's board of directors, as of the 22 day of
February, 2000.

                                   General Electric Capital Services, Inc.

              (Corporate Seal)

                                   By: /s/   NANCY E. BARTON
                                       -------------------------------------
                                       Nancy E. Barton, Senior Vice President

Attest:

/s/    BRIAN T. MCANANEY
--------------------------------------
Brian T. McAnaney, Assistant Secretary

                                   Exhibit 10-2<PAGE>

                                                                     EXHIBIT 4.4

                                 AMENDMENT NO. 1

                                  BY AND AMONG

                         SCIENTIFIC LEARNING CORPORATION

                         WARBURG, PINCUS VENTURES, L.P.

                                       AND

                                    WPV, INC.

                          EFFECTIVE AS OF MARCH 9, 2001

                                       TO

               AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT

                     ENTERED INTO AS OF DECEMBER 30TH, 1998,

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                               AMENDMENT NO. 1 TO

               AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT

         Reference is made to the Amended and Restated Registration Rights
Agreement (the "AGREEMENT"), entered into as of December 30, 1998, by and among
Scientific Learning Corporation, a Delaware corporation (the "Company"),
Warburg, Pincus Ventures, L.P. ("WP VENTURES"), a Delaware limited partnership
and a holder of shares of Common Stock of the Company, par value $0.001 per
share (the "COMMON STOCK"), and the parties listed on Exhibit A attached thereto
(such parties, together with WP Ventures, the "OTHER PARTIES"). This Amendment
No. 1, effective as of March 9, 2001, by and among the Company, WP Ventures and
WPV, Inc. ("WPV"), a Delaware corporation and the recipient of a warrant to
acquire shares of Common Stock, is attached to and made a part of the Agreement,
and the Agreement is hereby amended and supplemented as follows:

         WHEREAS, the Company and the Other Parties entered the Agreement to
provide the right to the Other Parties to require that the Company prepare and
file a registration statement under the U.S. Securities Act of 1933 under
specified circumstances relating to the offer and sale of the Company's
securities held by such Other Parties; and

         WHEREAS, the Company is issuing on the date hereof a warrant or
warrants to WPV to purchase up to 1,375,000 shares of the Common Stock in
consideration of the delivery by WPV of an unlimited guaranty of that certain
$15,000,000 line of credit to be extended by Fleet National Bank, N.A. to the
Company (the "GUARANTY"), and, in consideration of, and as further inducement to
WPV to deliver, the Guaranty, the Company desires to amend certain provisions of
the Agreement to change the registration rights of WP Ventures with respect to
its holdings of certain of the Company's securities as set forth herein, and to
add WPV as a party to the Agreement; and

         WHEREAS, Section 2.10 of the Agreement provides that any provision of
Section 2 of the Agreement may be amended "...with the written consent of the
Company and the Holders of at least a majority of the Registrable Securities,"
and that "[a]ny amendment... effected in accordance with... Section 2.10 shall
be binding on each Holder and the Company;" and

         WHEREAS, WP Ventures is the Holder of a majority of the Registrable
Securities pursuant to the definitions of such terms contained in Section 1.1 of
the Agreement; and

         NOW, THEREFORE, in consideration of the premises set forth above and
the mutual representations, warranties and agreements contained herein, the
adequacy and sufficiency of which consideration is hereby agreed by the parties
to be satisfactory, the parties hereby agree to amend the Agreement as follows:

A.       DEFINITION OF "REGISTRABLE SECURITIES": Section 1.1 of the Agreement is
         hereby amended by deleting the current definition of "Registrable
         Securities" in its entirety and replacing it with the following:

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         ""REGISTRABLE SECURITIES" means: (i) any Common Stock of the Company
         issued or issuable upon conversion of the Shares; (ii) any Common Stock
         of the Company issued as (or issuable upon the conversion or exercise
         of any warrant, right or other security which is issued as) a dividend
         or other distribution with respect to, or in exchange for or in
         replacement of, such above-described securities; (iii) all of the
         shares of Common Stock of the Company issuable upon exercise of the
         warrants issued to Warburg, Pincus Ventures, L.P., a Delaware limited
         partnership, on June 4, 1998 and October 23, 1998; (iv) all of the
         shares of Common Stock of the Company issuable upon exercise of the
         warrants issued to WPV, Inc., a Delaware corporation, on March 9, 2001;
         and (v) up to an aggregate of 1,000,000 additional shares of Common
         Stock now held or hereafter acquired by Warburg, Pincus Ventures, L.P.,
         WPV, Inc. or any of their affiliates (as such term is defined in Rule
         405 under the Exchange Act), whether purchased from the Company or in
         the open market, or acquired by any other means, such 1,000,000 shares
         of Common Stock being in addition to any other shares of Common Stock
         included as Registrable Securities pursuant to clauses (i) through (iv)
         of this definition."

B.       ADDITION OF WPV AS A PARTY TO THE AGREEMENT. For the purpose of adding
         WPV as a party to the Agreement, WPV shall execute a copy of the
         Agreement as an "Investor" on the date hereof and Exhibit A of the
         Agreement is hereby amended by adding the following language to the end
         of the existing Exhibit A:

"WPV, Inc.                   (Not Applicable)      Warrants to acquire 1,375,000
466 Lexington Avenue                               shares of Common Stock, par
New York, NY 10017                                 value $0.001 per share"
Attention:  Timothy Curt

II.      GENERAL.

(a) All capitalized terms defined in the Agreement and used herein, except as
otherwise defined herein, shall have the same meanings as in the Agreement.

(b) The Agreement together with this Amendment replaces and supersedes all other
agreements, written or oral with respect to its subject matter.

(c) Except as expressly amended and supplemented hereby, the Agreement remains
in full force and effect.

(d) If any term of this Amendment conflicts with the terms of the Agreement, the
terms of this Amendment shall prevail.

(e) This Amendment may be signed in counterparts, each of which shall constitute
an original and which together shall constitute one and the same amendment.

(f) This Amendment shall be governed by and construed in accordance with the
laws of the State of California applicable to contracts between California
residents entered into and to be performed entirely within the State of
California without giving effect to the conflict or choice of law principles
thereof.

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         IN WITNESS WHEREOF, the parties' duly authorized representatives hereby
have executed this Agreement as of the date first written above.

SCIENTIFIC LEARNING CORPORATION               WPV, INC.

By:  /s/ Jane A. Freeman                      By:  /s/ Timothy Curt
   --------------------------------              -------------------------------
   Name: Jane A. Freeman                         Name:  Timothy Curt
   Title: Chief Financial Officer                Title:  Vice President

Address: 1995 University Avenue, Suite 400    Address: 466 Lexington Avenue
         Berkeley, CA 94704                            New York, NY 10017
         Fax:  (510) 665-1717                          Fax:  (212) 878-9200

WARBURG, PINCUS VENTURES, L.P

By:  /s/ Timothy Curt
   --------------------------------
       Name: Timothy Curt
       Title:  Partner

Address: 466 Lexington Avenue
         New York, NY 10017
         Fax:  (212) 878-9200

     [Signature page to Amendment No. 1 to Amended and Restated Registration
             Rights Agreement, entered into as of December 30, 1998]

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