Neuropsychology Expert Witnesses

Neuropsychological evidence frequently decides disputes in which a person's cognitive functioning carries significant financial or institutional consequences. Disability insurers and policyholders disagree about whether impairment prevents a professional from performing the material duties of an occupation, estates and business partners contest whether a decedent or executive had the capacity to execute a will, trust amendment, or transaction, and employers defend fitness-for-duty determinations in safety-sensitive roles. Claims alleging toxic exposure raise similar questions across many claimants at once. In each of these matters, the contested issue is whether measured deficits are genuine, how severe they are, and whether they can reliably be traced to the event or condition alleged.

A neuropsychologist addresses those questions through standardized testing, review of medical and occupational records, and interpretation of results against appropriate normative data. Performance and symptom validity measures sit at the center of that work, because they allow the expert to separate credible impairment from suboptimal effort or exaggeration before any conclusion about causation is drawn. The expert can then explain whether the observed profile is consistent with traumatic brain injury, neurodegenerative disease, toxic exposure, psychiatric illness, or premorbid limitations, and what that profile means for decisional capacity or occupational function. For counsel, this analysis supports or challenges a claimed disability, frames apportionment among competing causes, and provides a principled basis for rebutting an evaluation that relies on outdated norms or omits validity testing.

Because neuropsychological opinions are so often attacked on methodology, the expert's training and testing practices deserve as much scrutiny as the conclusion itself. Round Table Group can connect counsel with board-certified clinical neuropsychologists, tenured professors who have published on test development and validity, and clinicians whose research addresses malingering, decisional capacity, and Social Security Disability evaluations. Some have testified dozens of times on brain injury, competency, and testamentary capacity, while others bring cross-cultural and Spanish-language assessment experience that can prove decisive when normative comparisons are in dispute. Drawing on more than 75,000 expert searches for litigators, we invite you to discuss the needs of your neuropsychology case by calling us at (202) 908-4500.