Related Experiment Video
Updated: Sep 22, 2026

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory
Published on: January 31, 2017
Abstract:
Transient global amnesia (TGA) was found in 41 of 76 patients admitted to the North Carolina Baptist Hospital with temporary disturbances of memory. Risk factors for stroke were present in 26 (63%) of these 41 patients, and additional risk factors developed in 9 (27%) of the 33 patients available for follow-up. Follow-up evaluation in 33 patients (80%) for periods ranging from 1 to 17 years (mean, 60.3 months) revealed a low rate of recurrence (18%) and a still lower rate of progression to stroke (6%). No transient ischemic attacks were reported during this period. In 2 patients, multiple recurrences of TGA ceased after treatment of the underlying condition (polycythemia in 1 case and myxomatous degeneration of the mitral valve in the other.
Related Concept Videos
Higher Mental Functions of Brain: Learning and Memory
Traumatic Memory
Amnesia
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
Dissociative Amnesia
Transient Ischemic Attack l: Introduction
Traumatic Brain Injury l: Introduction

