You may see this in a medical record review, denial letter, or expert report as phrases like "anchoring," "premature closure," or "confirmation bias" during the diagnostic process. It means a clinician's judgment was pulled off course by a mental shortcut or assumption, causing symptoms, test results, or a patient's history to be interpreted too narrowly or too quickly.

In practice, that can happen when a doctor sticks with the first explanation that comes to mind and stops seriously considering other causes. A worker with dizziness after a chemical exposure, for example, might be treated for a routine illness while signs of a more serious condition are missed. The issue is not just a bad outcome. The question is whether biased thinking led to a misdiagnosis, delayed diagnosis, or failure to order reasonable follow-up tests, referrals, or treatment.

For an injury claim, cognitive bias can help explain why a diagnostic failure happened. It may support an argument that the provider did not meet the standard of care, especially if records show warning signs were overlooked or contradictory facts were ignored. In West Virginia, these cases are generally governed by the Medical Professional Liability Act (W. Va. Code §55-7B), and they usually require expert support. Deadlines can matter fast, including the two-year filing period that often applies to medical malpractice claims under West Virginia law.