The influence of "blind" distractors on eye movement trajectories in visual hemifield defects

Journal of Cognitive Neuroscience
Stefan Van der StigchelJ J S Barton

Abstract

There is evidence that some visual information in blind regions may still be processed in patients with hemifield defects after cerebral lesions ("blindsight"). We tested the hypothesis that, in the absence of retinogeniculostriate processing, residual retinotectal processing may still be detected as modifications of saccades to seen targets by irrelevant distractors in the blind hemifield. Six patients were presented with distractors in the blind and intact portions of their visual field and participants were instructed to make eye movements to targets in the intact field. Eye movements were recorded to determine if blind-field distractors caused deviation in saccadic trajectories. No deviation was found in one patient with an optic chiasm lesion, which affect both retinotectal and retinogeniculostriate pathways. In five patients with lesions of the optic radiations or the striate cortex, the results were mixed, with two of the five patients showing significant deviations of saccadic trajectory away from the "blind" distractor. In a second experiment, two of the five patients were tested with the target and the distractor more closely aligned. Both patients showed a "global effect," in that saccades deviated toward the distrac...Continue Reading

References

Jan 1, 1975·Neuropsychologia·M T Perenin, M Jeannerod
Apr 23, 1990·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·L Weiskrantz
Jan 1, 1990·Experimental Brain Research·A J van Opstal, J A van Gisbergen
Jun 1, 1990·Brain : a Journal of Neurology·M CorbettaS Aglioti
Jan 1, 1989·Neuropsychologia·S Magnussen, T Mathiesen
Feb 1, 1988·Brain : a Journal of Neurology·J L BarburJ M Findlay
Aug 1, 1987·Brain : a Journal of Neurology·I M BlytheK H Ruddock
Nov 1, 1985·Journal of Neurology, Neurosurgery, and Psychiatry·R BallietP Bach-y-Rita
Apr 20, 1974·Lancet·M D SandersL Wieskrantz
Dec 1, 1974·Brain : a Journal of Neurology·L WeiskrantzJ Marshall
Apr 1, 1972·Perceptual and Motor Skills·S Coren, P Hoenig
Mar 1, 1984·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·L PizzamiglioA Francia
Jan 1, 1982·Vision Research·B Bridgeman, D Staggs
Dec 1, 1980·Brain : a Journal of Neurology·J L BarburV A Waterfield
Jan 1, 1994·Experimental Brain Research·B M SheligaG Rizzolatti
Jan 1, 1993·Experimental Brain Research·P W Glimcher, D L Sparks
Dec 1, 1996·Journal of Neurophysiology·T MooreR S Mezrich
Feb 1, 1997·Annals of Neurology·J J Barton, J A Sharpe
Mar 1, 1997·Brain : a Journal of Neurology·P Stoerig, A Cowey
Aug 19, 1997·Proceedings of the National Academy of Sciences of the United States of America·A SahraieM J Brammer
Jun 1, 1997·Consciousness and Cognition·S DanzigerR D Rafal
Oct 27, 1998·Consciousness and Cognition·A Cowey Le Mare C
Feb 9, 1999·Journal of Cognitive Neuroscience·H ScharliJ H Hogben
Mar 17, 1999·Journal of Clinical and Experimental Neuropsychology·E KastenB A Sabel
Mar 29, 2000·Proceedings. Biological Sciences·R WalkerC Kennard
Aug 1, 2000·Vision Research·R M McPeekK Nakayama
Jan 18, 2002·Experimental Brain Research·Melanie C Doyle, Robin Walker
Nov 8, 2002·Journal of Experimental Psychology. Human Perception and Performance·Richard Godijn, Jan Theeuwes
Dec 24, 2002·Journal of Cognitive Neuroscience·James M IntriligatorJason J S Barton
Mar 4, 2003·Journal of Neurophysiology·Robert M McPeekEdward L Keller
Jun 28, 2003·Experimental Brain Research·Casimir J H Ludwig, Iain D Gilchrist
Sep 11, 2003·Journal of Neurophysiology·Nicholas L Port, Robert H Wurtz

❮ Previous
Next ❯

Citations

Dec 21, 2012·Experimental Brain Research·Jayalakshmi Viswanathan, Jason J S Barton
Oct 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Christopher L StriemerMelvyn A Goodale
Jul 20, 2010·Brain and Cognition·S Van der StigchelJ J S Barton
Jun 16, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Céline CavézianSylvie Chokron
Apr 10, 2010·Acta Psychologica·Manon Mulckhuyse, Jan Theeuwes
Mar 15, 2015·Trends in Neurosciences·Miriam Spering, Marisa Carrasco
Jun 9, 2009·Vision Research·Stefan Van der StigchelJan Theeuwes
Jun 18, 2010·Vision Research·Stefan Van der Stigchel
Nov 26, 2010·Current Opinion in Neurology·Jason J S Barton

❮ 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.

Related Papers

Journal of Cognitive Neuroscience
James M IntriligatorJ J S Barton
Journal of Cognitive Neuroscience
H ScharliJ H Hogben
Neuroscience and Biobehavioral Reviews
Stefan Van der StigchelJan Theeuwes
© 2022 Meta ULC. All rights reserved