The manual haptic perception of orientations and the oblique effect in patients with left visuo-spatial neglect

Neuroreport
E GentazNathalie Touil

Abstract

This study addresses the limits of haptic orientation deficit observed in patients with left visuo-spatial neglect (VSN) in the fronto-parallel plane. We concentrated on two aspects of the haptic perception of vertical, horizontal and oblique orientations: first, the global level of performances compared with normal subjects and, second, the occurrence of the oblique effect (i.e. lower performances in oblique orientations than in vertical-horizontal orientations). Subjects were asked to position a rod, presented in the fronto-parallel plane, to one of four orientations: vertical, horizontal, left 45 degrees oblique and right 45 degrees oblique. First, we found a haptic orientation deficit in neglect patients: The precision was lower in the neglect patients than in the normal (young adults and seniors) subjects. Second, we observed in both neglect patients and control subjects the occurrence of a similar haptic oblique effect and there were no differences between the results in the left and right hemispaces. Taken together, this means that, in spite of the global haptic orientation production deficit observed in VSN patients, no specific pattern was observed in the haptic production of different orientations in these subjects as...Continue Reading

References

Jun 1, 1973·Neurology·M L Albert
Jan 1, 1972·Brain : a Journal of Neurology·J J Palmer
Sep 1, 1995·Vision Research·J Saarinen, D M Levi
Nov 1, 1996·Perception & Psychophysics·E Gentaz, Y Hatwell
Jan 1, 1997·Vision Research·D W HeeleyJ S Wright
Mar 21, 1998·Perception & Psychophysics·E Gentaz, Y Hatwell
Oct 1, 1998·Proceedings. Biological Sciences·D H Foster, S Westland
Jun 8, 2001·The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology·E GentazC Raphel

❮ Previous
Next ❯

Citations

Feb 10, 2006·Experimental Brain Research·Gabriel Baud-Bovy, Edouard Gentaz
May 1, 2008·Experimental Brain Research·Edouard GentazMarion Luyat
Jul 27, 2005·Journal of Neurology·Arnaud SajMarc Rousseaux
Apr 26, 2005·Annales de réadaptation et de médecine physique : revue scientifique de la Société française de rééducation fonctionnelle de réadaptation et de médecine physique·D Pérennou
Aug 6, 2008·Brain : a Journal of Neurology·D A PérennouA M Bronstein
Oct 3, 2006·Journal of Neurology, Neurosurgery, and Psychiatry·I V BonanA P Yelnik
Apr 8, 2004·Journal of Cognitive Neuroscience·Edouard Gentaz, Arlette Streri
Jul 16, 2010·BMC Neuroscience·Jeanine R SchulerAlexander A Tarnutzer
Apr 19, 2006·Perception & Psychophysics·Frouke HermensStan C A M Gielen
Feb 2, 2006·Psychonomic Bulletin & Review·Marion LuyatEdouard Gentaz
Feb 8, 2014·Neurophysiologie clinique = Clinical neurophysiology·D PérennouJ Barra
Dec 6, 2008·Neuropsychologia·Jacques HonoréMarc Rousseaux
Nov 4, 2006·Neurorehabilitation and Neural Repair·I V BonanA P Yelnik
Sep 22, 2009·Perception·Laure LejeuneFrançois Jouen
Nov 10, 2017·Frontiers in Neurology·Amir Kheradmand, Ariel Winnick
Jul 7, 2019·Physiological Reports·Ariel WinnickAmir Kheradmand
Dec 4, 2019·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Patrice RevolYves Rossetti

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.