Problems for clinical judgement: 1. Eliciting an insightful history of present illness

THIS ARTICLE PRESENTS THE RESULTS OF A REVIEW of studies of psychology that describe how ordinary human reasoning may lead patients to provide an unre liable history of present illness. Patients make errors because of mistakes in comprehension, recall, evaluation and expression. Comprehension of a qu estion changes depending on ambiguities in the language used and conversati onal norms. Recall fails through the forgetting of relevant information and through automatic shortcuts to memory. Evaluation can be mistaken because of shifting social comparisons and faulty personal beliefs. Expression is i nfluenced by moods and ignoble failures. We suggest that an awareness of ho w people report current symptoms and events is an important clinical skill that can be enhanced by knowledge of selected studies in psychology. These insights might help clinicians avoid mistakes when eliciting a patient's hi story of present illness.