Mapping visuospatial attention: the greyscales task in combination with repetitive navigated transcranial magnetic stimulation

BMC Neuroscience
Katrin GiglhuberSandro M Krieg

Abstract

Visuospatial attention is executed by the frontoparietal cortical areas of the brain. Damage to these areas can result in visual neglect. We therefore aimed to assess a combination of the greyscales task and repetitive navigated transcranial magnetic stimulation (rTMS) to identify cortical regions involved in visuospatial attention processes. This pilot study was designed to evaluate an approach in a cohort of healthy volunteers, with the future aim of using this technique to map brain tumor patients before surgery. Ten healthy, right-handed subjects underwent rTMS mapping of 52 cortical spots in both hemispheres. The greyscales task was presented tachistoscopically and was time-locked to rTMS pulses. The task pictures showed pairs of horizontal rectangles shaded continuously from black at one end to white at the other, mirror-reversed. On each picture the subject was asked to report which of the two greyscales appeared darker overall. The responses were categorized into "leftward" and "rightward," depending on whether the subject had chosen the rectangle with the darker end on the left or the right. rTMS applied to cortical areas involved in visuospatial attention is supposed to affect lateral shifts in spatial bias. These shi...Continue Reading

References

Jan 1, 1980·Neuropsychologia·D Bowers, K M Heilman
Jun 1, 1994·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·I H RobertsonB A Wilson
Jul 1, 1994·Neuropsychologia·J B MattingleyJ A Bradshaw
Mar 8, 2000·Acta Neurologica Scandinavica·M JehkonenG Molnár
Nov 4, 2000·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·D L NaK M Heilman
May 8, 2002·Nature Reviews. Neuroscience·Maurizio Corbetta, Gordon L Shulman
Jun 12, 2002·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Michael E R Nicholls, Georgina R Roberts
Dec 14, 2004·Human Brain Mapping·David P CorinaGeorge A Ojemann
Sep 13, 2005·Neuropsychologia·Tom ManlyMelanie A George
Oct 20, 2005·Nature Neuroscience·Maurizio CorbettaAyelet Sapir
Dec 6, 2006·Experimental Brain Research·André DufourVictor Candas
Dec 7, 2006·Behavioural Neurology·Brigida FierroEdoardo Bisiach
Jun 13, 2009·Frontiers in Human Neuroscience·Metehan CiçekRobert T Knight
Oct 17, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Simone RossiUNKNOWN Safety of TMS Consensus Group
Mar 17, 2010·Neurophysiologie clinique = Clinical neurophysiology·J Ruohonen, J Karhu
Jul 6, 2010·Journal of the International Neuropsychological Society : JINS·Kelly M GoedertAnna M Barrett
Mar 1, 1998·Trends in Cognitive Sciences·G Vallar
Jun 23, 2011·Annual Review of Neuroscience·Maurizio Corbetta, Gordon L Shulman
Jul 16, 2011·Neuropsychologia·Hans-Otto Karnath, Christopher Rorden
Sep 20, 2011·Nature Neuroscience·Michel Thiebaut de SchottenMarco Catani
Nov 10, 2011·Neurosurgery·Franck-Emmanuel RouxJean-François Démonet
Nov 24, 2011·Journal of Neuroscience Methods·Pantelis LioumisJyrki P Mäkelä
Dec 6, 2011·Neurocase·Jay Cheol KwonKenneth M Heilman
Jan 11, 2012·Neuropsychologia·Julia SuchanHans-Otto Karnath
Jan 25, 2012·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Christopher S Y BenwellGregor Thut
Mar 27, 2012·Journal of Neurosurgery·Nader SanaiMitchel S Berger
Apr 24, 2012·NeuroImage·Karl Friston
May 23, 2012·Neuropsychologia·Bianca de HaanJon Driver
Jul 24, 2012·Frontiers in Human Neuroscience·Mario Bonato
Jan 4, 2013·Human Brain Mapping·Julia SuchanDorothee Saur
May 25, 2013·NeuroImage·Phiroz E TaraporeSrikantan S Nagarajan
Sep 21, 2013·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Hugues Duffau
Jan 15, 2014·Neuropsychology Review·Joanna L BrooksStephen Darling

❮ Previous
Next ❯

Software Mentioned

CPS
Corina
GraphPad Prism
Nexstim eXimia System
NEXSPEECH

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.