Fig. 1: Experimental design.
From: Concept and location neurons in the human brain provide the ‘what’ and ‘where’ in memory formation

Top row: Each experimental session had a fixed duration of 35 min and consisted of consecutive runs of varying content and number of encoding trials, dynamically adapted to the subject’s performance. Bottom row: Composition of a single run. Each run consisted of encoding trials, a distractor task and retrieval trials. In this example, all locations were remembered correctly. Images used in this figure are licensed. Copyright © 2001 Thomas Reber and Getty Images. All rights reserved.