Leopold Lee Pedraza (“Pedraza”) appeals from a district court order granting summary judgment in favor of Richard L. Jones, Kenneth Rosenquest, and Smejkal (collectively, “defendants”) on the ground that Pedraza’s claims were time-barred. Pedraza argues that an expert witness should have been appointed to help him prepare his case and that the district court erred in striking his affidavits. Finding no error in the district court’s judgment, we affirm.
BACKGROUND
Pedraza filed a pro se 42 U.S.C. § 1983 claim in forma pauperis, alleging that the defendants, officials and officers in the Victoria, Texas Police Department, had denied him medical treatment for heroin withdrawal despite his repeated requests from June 12 to June 14, 1986. In a hearing to determine whether a factual basis existed for Pedraza’s claim, the district court dismissed the claim because it was not filed within the Texas two-year statute of limitations. See Tex.Civ.Prac. & Rem.Code Ann. § 16.003(a) (West 1986). 1
This court subsequently vacated the dismissal and remanded for a determination of whether Pedraza’s mental condition tolled the statute of limitations so as to bring his claim within, the limitations period. See Tex. Civ.Prac. & Rem.Code Ann. § 16.001(a)(2) (West Supp.1995) (tolling the limitations period when a person is under a legal disability, such as unsound mind). Pedraza argued that he was of unsound mind from July 12, 1986 to October 1987 as a result of heroin withdrawal.
The defendants filed a motion for summary judgment, which contained the affidavit of their expert witness, Dr. Robert C. Lyman, a psychiatrist with extensive training and experience in narcotic use and withdrawal. Lyman stated, inter alia, that it is impossible for a person to be impaired physically or mentally due to heroin withdrawal for five months or longer. 2
*196 Pedraza filed two motions for appointment of an expert witness on heroin use and withdrawal, which the district court denied:
Plaintiff seeks assistance from a court-appointed expert on the ground that he cannot overcome the Defendants’ expert without an expert of his own. While the court is cognizant of Plaintiffs plight, it is not in a position to appoint an expert. The in forma pauperis (“IFP”) statute ... does not, however, require or authorize the court to subsidize litigation by paying expert fees or other costs that IFP litigants may incur, such as depositions, duplication, exhibits, or travel. As a general matter, IFP litigants must hire their own experts.
Pedraza filed a response to the summary judgment motion supported by affidavits from himself and Antonio Marquez, which stated that heroin withdrawal could cause a person to be of unsound mind. The district court struck the affidavits and granted summary judgment for the defendants on the ground that Pedraza had failed to raise a genuine issue of material fact.
DISCUSSION
A District Court’s failure to appoint an expert witness
Pedraza argues that the district court erred in refusing to appoint an expert witness because, without the assistance of an expert witness, indigent prison inmates cannot raise these types of claims. He asserts that the Fifth Circuit has awarded expert witness fees in many eases in recognition of counsel’s need for experts’ assistance.
See Copper Liquor, Inc. v. Adolph Coors Co.,
This Court has not addressed the issue of whether expert witnesses can be appointed to assist a plaintiff proceeding under the
in forma pauperis
(“IFP”) statute, 28 U.S.C. § 1915. The Supreme Court has held that “expenditure of public funds [on behalf of an indigent litigant] is proper only when authorized by Congress.”
United States v. MacCollom,
In
Boring v. Kozakiewicz,
B. Striking of the Affidavits
Pedraza contends the district court erred in striking the affidavits of Pedraza and Antonio Marquez. He argues that Marquez’s affidavit was admissible either as expert testimony or lay opinion and that his own affidavit qualified as lay opinion. A district court’s decision to strike either expert or lay opinion testimony is subject to review under an abuse of discretion standard.
Christophersen v. Allied-Signal Corp.,
Under Fed.R.Evid. 702, a witness may be qualified as an expert by knowledge, skill, experience, training, or education.
See Lavespere v. Niagara Mach. & Tool Works, Inc.,
To qualify as an expert, the witness’s testimony must “both rest[ ] on a reliable foundation and [be] relevant to the task at hand. Pertinent evidence based on scientifically valid principles will satisfy those demands.”
Daubert v. Merrell Dow Pharmaceuticals, Inc.,
— U.S. -, -,
Pedraza also argues that both affidavits are admissible as lay opinion under Fed.R.Evid. 701, which provides that a lay witness may testify in the form of opinions or inferences only when they are (1) rationally based on the perception of the witness and (2) helpful to a clear understanding of his testimony or the determination of a fact in issue. Because Marquez possessed no personal knowledge of Pedraza’s mental condition, his affidavit does not satisfy the requirements of Rule 701. The general assertions he makes based on his own experience and his admission that each individual’s experience varies “depending on the person’s tolerance and method of treatment for recovery” would not be helpful in resolving whether Pedraza was of unsound mind. Pedraza’s affidavit similarly fails because he makes only conclusory statements as to why the heroin withdrawal caused him to be of unsound mind. We conclude the district court did not abuse its discretion in striking the affidavits.
C. Appointment of Counsel
Pedraza contends that the “exceptional circumstances” of the case required the district court to appoint an attorney to represent him.
See
28 U.S.C. § 1915(d);
Ulmer v. Chancellor,
*198 CONCLUSION
For the forgoing reasons, the order of the district court granting summary judgment is affirmed.
Notes
. For section 1983 claims, federal courts apply the general personal injury statute of limitations of the forum state.
Owens v. Okure,
. Because limitations ran on June 12, 1988 and Pedraza did not file his suit until November 21, 1988, five months is the minimum amount of time that Pedraza must have been impaired in order to bring his claim within the limitations period.
. These cases were subsequently overruled to the extent that they allowed recovery of expert fees in excess of the amount specified by 28 U.S.C. § 1821.
International Woodworkers of Am. v. Champion Int'l Corp.,
. Although section 1915(c) provides that ”[w]it-nesses shall attend as in other cases,” the circuit courts that have addressed the issue of court payment for
non-expert
witness fees, such as attendance and mileage, have consistently held that federal courts are not authorized to waive or pay witness fees on behalf of an IFP litigant.
See Malik v. Lavalley,
. The court apparently believed that section 1915 was the sole source of authority to appoint an expert for an indigent. In appropriate circumstances, however, a court may appoint an expert under Fed.R.Evid. 706. The expert witness must either be agreed upon by the parties or selected by the court. Fed.R.Evid. 706(a). Compensation of the expert is by the parties "in such proportion and at such time as the court directs.”
Id.
706(b). A few circuits have allowed appointment even when one party was indigent and unable to bear a portion of the costs.
See McKinney v. Anderson,
Pedraza made no showing that he attempted to procure an expert, never submitted medical or psychological records regarding his mental condition, never requested the appointment of an expert pursuant to Rule 706, and requested an appointment only for his own benefit. Under these circumstances, Rule 706 is not applicable.
