Suicide attempts: Patients with and without an affective disorder show impaired autobiographical memory specificity.

Abstract

A number of studies have shown reduced recall of specific autobiographical memories (AMs) in patients after attempted suicide, but in all of them the study samples were confounded with diagnoses of affective disorders. The present study aims to demonstrate impaired specific autobiographical memory in patients after a suicide attempt without a diagnosis of an affective disorder. Four groups were compared: (1) patients with an actual major depression and a suicide attempt; (2) patients after a suicide attempt without a lifetime history of an affective diagnosis; (3) patients currently suffering from major depression without a suicide attempt; and (4) control persons not suffering from either of the two conditions during their entire life. Individuals with major depression and a suicide attempt showed reduced specificity of AM and, most importantly, patients with a suicide attempt-despite the absence of an affective disorder-were equally impaired with recall of specific AMs as were patients with major depression. The authors propose that reduced specific AM is a common vulnerability factor that can lead either to the development of an affective disorder and/or to a suicide attempt.