Table of Contents Author Guidelines Submit a Manuscript
Behavioural Neurology
Volume 6, Issue 3, Pages 155-158

Left Imaginal Neglect in Heminattention: Experimental Study with the O’Clock Test

D. Grossi,1,4 R. Angelini,1 A. Pecchinenda,2 and L. Pizzamiglio2,3

1Department of Neurology, II Medical School, University of Naples, “Federico II”, Italy
2Department of Psychology, University of Rome, “La Sapienza”, Italy
3S. Lucia Clinic, Rome, Italy
4Clinica Neurologica, /I Facolta di Medicina e Chirurgia, Via Sergio Pansini, 5, 80131, Napoli, Italy

Copyright © 1993 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Both sensory and imaginal defects have been reported in unilateral neglect, but their assessment based on the description of famous squares can be difficult in a clinical setting. The O'clock Test is an alternative tool for revealing imaginal defects. Our aim was to demonstrate imaginal neglect in patients with left heminattention. Ten patients were studied and a mild unilateral defect in imaginal processes was found with an increase in the defect when the patients were fatigued.