Effects of overt and covert attention on the steady-state visual evoked potential

Neuroscience Letters
Sabrina WalterMatthias M Mueller

Abstract

Flickering stimuli evoke an oscillatory brain response with the same frequency as the driving stimulus, the so-called steady-state visual evoked potential (SSVEP). SSVEPs are robust brain signals whose amplitudes are enhanced with attention and thus play a major role in the development and use of non-invasive Brain-Computer Interfaces (BCIs). We compared the modulation of SSVEP amplitudes when subjects directly gazed at a flickering array of static dots (overt attention) to when they covertly shifted attention to the dots keeping their eyes at central fixation. A discrimination task was performed at the attended location to ensure that subjects shifted attention as instructed. Horizontal eye movements (allowed in overt attention but to be avoided in covert attention) were monitored by the horizontal electrooculogram. Subjects' behavioural performance was significantly reduced in covert attention compared to overt attention. Correspondingly, attentional modulation of SSVEP amplitudes by overt attention was larger in magnitude than for covert attention. Overt attention also changed the topographical distribution of SSVEP amplitudes on the scalp. Stimuli elicited the largest amplitudes at central occipital electrodes when they wer...Continue Reading

References

May 14, 1996·Proceedings of the National Academy of Sciences of the United States of America·S T MorganS A Hillyard
Jun 19, 1998·Brain Research. Cognitive Brain Research·M M MüllerS A Hillyard
Aug 10, 2000·Psychophysiology·M JunghöferB Rockstroh
May 22, 2001·Clinical EEG (electroencephalography)·J Bosch-BayardN Trujillo-Barreto
Jul 18, 2003·Nature·M M MüllerS A Hillyard
Feb 6, 2004·Psychological Review·Dale PurvesR Beau Lotto
Jun 17, 2006·Human Brain Mapping·Francesco Di RussoSteven A Hillyard
Sep 8, 2006·Proceedings of the National Academy of Sciences of the United States of America·M M MüllerS A Hillyard
Apr 5, 2007·IEEE Transactions on Bio-medical Engineering·Ola FrimanAxel Gräser
Aug 26, 2009·Journal of Cognitive Neuroscience·Søren K AndersenMatthias M Müller
Dec 8, 2009·Progress in Neurobiology·François-Benoît VialatteAndrzej Cichocki
Mar 12, 2010·Neuroscience Letters·Cliodhna QuigleyMatthias M Müller
Jun 1, 2010·Behavioral and Brain Functions : BBF·Matthias S Treder, Benjamin Blankertz
Jul 21, 2010·Proceedings of the National Academy of Sciences of the United States of America·S K Andersen, M M Müller
Aug 10, 2010·Vision Research·Brian A Wandell, Jonathan Winawer
Feb 19, 2011·Vision Research·Patrick Cavanagh

❮ Previous
Next ❯

Citations

Feb 16, 2016·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Talia L Retter, Bruno Rossion
Nov 30, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Regina Gregori GrgičClaudio de'Sperati
Apr 22, 2015·Experimental Brain Research·Eva-Maria ReuterRoss Cunnington
Feb 28, 2015·Archives of Physical Medicine and Rehabilitation·Janis J Daly, Jane E Huggins
Jan 25, 2018·Attention, Perception & Psychophysics·Andrey ChetverikovÁrni Kristjánsson
Oct 16, 2019·Journal of Neural Engineering·Yufeng KeDong Ming
Dec 1, 2017·Social Cognitive and Affective Neuroscience·Alexy A BeckDana Samson
Nov 20, 2016·Medical & Biological Engineering & Computing·Niccolò MoraJosé Del R Millán
Dec 10, 2016·Frontiers in Human Neuroscience·Louisa V KulkeOliver Braddick
Nov 19, 2019·Vision·Christopher D Blair, Jelena Ristic
Nov 8, 2014·Journal of Neural Engineering·R E Alcaide-Aguirre, J E Huggins
Nov 11, 2020·ELife·Matthew J DavidsonNaotsugu Tsuchiya
Nov 26, 2020·Cognitive, Affective & Behavioral Neuroscience·Alfred LimJason Satel

❮ Previous
Next ❯

Related Concepts

Related Feeds

Attention Disorders

Attention is involved in all cognitive activities, and attention disorders are reported in patients with various neurological diseases. Here are the latest discoveries pertaining to attention disorders.