Neuropsychology expert witnesses

Neuropsychological testimony addresses questions that neither treating physicians nor general psychiatric experts are typically positioned to answer with the same precision: exactly which cognitive domains are impaired, by how much, and whether the pattern is scientifically consistent with a specific injury mechanism or disease process. When a case involves claims of memory loss, attentional dysfunction, slowed processing, personality change, or diminished executive capacity, jurors and judges need a framework for evaluating those claims that goes beyond subjective complaint. A qualified neuropsychologist provides that framework through objective, quantified test data interpreted against population norms and peer-reviewed diagnostic criteria. This evidentiary grounding is particularly valuable when opposing counsel attempts to characterize impairment claims as speculative or unverifiable.

Traumatic brain injury litigation — whether arising from motor vehicle collisions, workplace accidents, sports-related events, or assaults — represents the largest volume of matters in which neuropsychology experts are retained. Toxic tort and environmental exposure cases frequently require neuropsychological assessment when plaintiffs allege cognitive sequelae from neurotoxic substances. Medical malpractice actions involving anoxic brain injury, surgical complications affecting the central nervous system, or delayed diagnosis of stroke or encephalopathy also commonly call for this expertise. In workers' compensation proceedings, neuropsychologists establish functional capacity and the degree of occupational impairment attributable to a work-related injury. Criminal matters encompass competency to stand trial evaluations, not-guilty-by-reason-of-insanity assessments, and capital sentencing mitigation when neurodevelopmental or acquired brain conditions are at issue. Neuropsychologists also appear in civil commitment proceedings, guardianship disputes, and Social Security disability appeals where cognitive function is determinative.

Every neuropsychology expert listed on this directory passes a structured review before their profile is published. That review confirms an active, unrestricted doctoral-level psychology license in at least one U.S. jurisdiction, checks the relevant state licensing board's public disciplinary records, and documents the expert's highest relevant credential — including ABCN board certification where held. We also collect a current CV that includes the expert's publication record, training background, and a log of prior forensic testimony covering both deposition and trial appearances. Fee schedule information and geographic availability are confirmed at the time of listing and updated at regular intervals. Experts who have allowed their license to lapse, who carry unresolved disciplinary actions, or who cannot provide a verifiable forensic history are not listed.

Engagements typically begin with the expert reviewing available records — medical, educational, employment, and prior psychological evaluations — before any examination or report is prepared. If a new independent neuropsychological evaluation is needed, the expert will schedule a testing session that may run four to eight hours depending on the battery required, followed by scoring, interpretation, and report drafting. The written report documents the referral question, records reviewed, behavioral observations during testing, test-by-test findings with normative comparisons, diagnostic impressions, and the expert's opinions regarding causation and functional impact. After the report is finalized, counsel can expect availability for a preparatory call, deposition, and trial testimony. Turnaround times for report completion vary but are typically discussed and agreed upon at retention. Retaining counsel should provide a clear case summary and records index at the outset to allow the expert to identify any gaps before the evaluation begins.

Neuropsychological expert testimony has been the subject of admissibility scrutiny in federal and state courts applying Daubert standards under FRE 702 and its state equivalents. Courts have generally examined whether the instruments used are standardized and have known error rates, whether the expert's interpretive methodology follows published guidelines from professional bodies such as the American Academy of Clinical Neuropsychology, and whether the causal opinions offered are grounded in peer-reviewed literature rather than clinical intuition alone. Attorneys retaining a neuropsychology expert should request information on the normative databases underlying the tests used, the expert's familiarity with validity testing protocols, and any prior instances in which their testimony was limited or excluded. Experts listed in this directory are asked to disclose exclusion history as part of the intake process, and that information is available to retaining counsel upon request.