Research Topics
| Susana Martinez-CondeSummaryAffiliation: Barrow Neurological Institute Country: USA Publications
| Collaborators
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Detail Information
Publications
The impact of microsaccades on vision: towards a unified theory of saccadic functionSusana Martinez-Conde
Department of Neurobiology, Barrow Neurological Institute, 350W Thomas Rd, Phoenix, Arizona 85013, USA
Nat Rev Neurosci 14:83-96. 2013..The similarities and differences between microsaccades and saccades have been a most intriguing area of study, and the results of this research are leading us towards a unified theory of saccadic and microsaccadic function...
The function of bursts of spikes during visual fixation in the awake primate lateral geniculate nucleus and primary visual cortexSusana Martinez-Conde
Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA
Proc Natl Acad Sci U S A 99:13920-5. 2002..Onset responses to flashes were about 7 times larger than the responses to the same stimulus moved across the cells' receptive fields by microsaccades, perhaps because of the relative abruptness of flashes...- Fixational eye movements across vertebrates: comparative dynamics, physiology, and perceptionSusana Martinez-Conde
Barrow Neurological Institute, Phoenix, AZ 85013, USA
J Vis 8:28.1-16. 2008..We also provide a table that summarizes the physical parameters of the different types of fixational eye movements described in non-human vertebrates... - Microsaccades: a neurophysiological analysisSusana Martinez-Conde
Barrow Neurological Institute, Phoenix, AZ, USA
Trends Neurosci 32:463-75. 2009..We also point out the current gaps in our understanding of the neurobiology of microsaccades and identify the most promising lines of enquiry... 
BOLD activation varies parametrically with corner angle throughout human retinotopic cortexXoana G Troncoso
Department of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA
Perception 36:808-20. 2007..We propose that all early visual areas localize discontinuities along the edges of surfaces, and that specific cortical corner-processing circuits further establish the specific nature of those discontinuities, such as their orientation...- Fixational eye movements in normal and pathological visionSusana Martinez-Conde
Department of Neurobiology, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
Prog Brain Res 154:151-76. 2006..Special attention will be given to microsaccades, the fastest and largest type of fixational eye movement... - Microsaccades counteract visual fading during fixationSusana Martinez-Conde
Barrow Neurological Institute, 350 West Thomas Road, Phoenix, Arizona 85013, USA
Neuron 49:297-305. 2006..These results reveal a direct link between suppression of microsaccades and fading and suggest a causal relationship between microsaccade production and target visibility during fixation... - The role of fixational eye movements in visual perceptionSusana Martinez-Conde
Barrow Neurological Institute, St. Joseph's Hospital, 350 W. Thomas Road, Phoenix, Arizona 85013, USA
Nat Rev Neurosci 5:229-40. 2004 - Dichoptic visual masking reveals that early binocular neurons exhibit weak interocular suppression: implications for binocular vision and visual awarenessStephen L Macknik
Barrow Neurological Institute, Phoenix, AZ 85013, USA
J Cogn Neurosci 16:1049-59. 2004.... - Microsaccades and blinks trigger illusory rotation in the "rotating snakes" illusionJorge Otero-Millan
Barrow Neurological Institute, Phoenix, Arizona 85013, USA
J Neurosci 32:6043-51. 2012..These results suggest that transient oculomotor events such as microsaccades, saccades, and blinks, rather than continuous drift, act to trigger the illusory motion in the Rotating Snakes illusion... - Saccades and microsaccades during visual fixation, exploration, and search: foundations for a common saccadic generatorJorge Otero-Millan
Barrow Neurological Institute, Phoenix, AZ, USA
J Vis 8:21.1-18. 2008..Thus our results indicate a microsaccade-saccade continuum and support the hypothesis of a common oculomotor generator for saccades and microsaccades... - Microsaccadic efficacy and contribution to foveal and peripheral visionMichael B McCamy
Department of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona 85013, USA
J Neurosci 32:9194-204. 2012.... - Corner salience varies linearly with corner angle during flicker-augmented contrast: a general principle of corner perception based on Vasarely's artworksXoana G Troncoso
Barrow Neurological Institute, Phoenix, Arizona 85013, USA
Spat Vis 22:211-24. 2009..A large fraction of Vasarely's art showcases the perceptual salience of corners, curvature and terminators. Several of these artworks and their implications for visual processing are discussed... - Microsaccades drive illusory motion in the Enigma illusionXoana G Troncoso
Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA
Proc Natl Acad Sci U S A 105:16033-8. 2008..These results reveal a direct link between microsaccade production and the perception of illusory motion in Enigma and rule out the hypothesis that the origin of the illusion is purely cortical... - Triggering mechanisms in microsaccade and saccade generation: a novel proposalJorge Otero-Millan
Barrow Neurological Institute, Phoenix, Arizona 85013, USA
Ann N Y Acad Sci 1233:107-16. 2011.... - Novel visual illusions related to Vasarely's 'nested squares' show that corner salience varies with corner angleXoana G Troncoso
Department of Neurobiology, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
Perception 34:409-20. 2005..Basic computational models of center surround receptive fields predict the results to some degree, but not fully... - Windows on the mindSusana Martinez-Conde
Barrow Neurological Institute, Phoenix, USA
Sci Am 297:56-63. 2007 - Microsaccades counteract perceptual filling-inXoana G Troncoso
Barrow Neurological Institute, Phoenix, AZ, USA
J Vis 8:15.1-9. 2008..Our results show that microsaccades do not solely overcome low-level adaptation mechanisms but they also contribute to maintaining second-order visibility during fixation... - Distinctive features of saccadic intrusions and microsaccades in progressive supranuclear palsyJorge Otero-Millan
Barrow Neurological Institute, Phoenix, Arizona 85013, USA
J Neurosci 31:4379-87. 2011..Because of brainstem and/or cerebellum impairment, fixational saccades in PSP are abnormally large and thus more likely to trigger a corrective saccade, giving rise to SWJs... - Simultaneous recordings of ocular microtremor and microsaccades with a piezoelectric sensor and a video-oculography systemMichael B McCamy
Department of Neurobiology, Barrow Neurological Institute, USA School of Mathematical and Statistical Sciences, Arizona State University, USA
Peerj 1:e14. 2013..We moreover found that the piezoelectric sensor affected microsaccades in a complex way, and that the oculomotor system adjusted to the stress brought on by the sensor by adjusting the magnitudes of microsaccades... - The effects of fixation target size and luminance on microsaccades and square-wave jerksMichael B McCamy
Department of Neurobiology, Barrow Neurological Institute, USA
Peerj 1:e9. 2013.... - Saccades during attempted fixation in parkinsonian disorders and recessive ataxia: from microsaccades to square-wave jerksJorge Otero-Millan
Department of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona, United States of America
PLoS ONE 8:e58535. 2013..The same mechanism also explains how the return saccade in SWJs is triggered by the position error that occurs when the first saccadic component is large, both in the healthy brain and in neurological disease... - Social misdirection fails to enhance a magic illusionJie Cui
Division of Neurobiology, Barrow Neurological Institute Phoenix, AZ, USA
Front Hum Neurosci 5:103. 2011..We further determined that subjects required multiple trials to effectively distinguish real from simulated tosses; thus the illusion was resilient to repeated viewing... - Stronger misdirection in curved than in straight motionJorge Otero-Millan
Neurobiology, Barrow Neurological Institute Phoenix, AZ, USA
Front Hum Neurosci 5:133. 2011.... - Perceptual elements in Penn & Teller's "Cups and Balls" magic trickHector Rieiro
Department of Neurosurgery, Barrow Neurological Institute, United States Department of Neurobiology, Barrow Neurological Institute, United States Department of Signal Theory and Communications, University of Vigo, Spain
Peerj 1:e19. 2013..Our results have implications for how to optimize the performance of this classic magic trick, and for the types of hand and object motion that maximize magic misdirection... - An oculomotor continuum from exploration to fixationJorge Otero-Millan
Departments of Neurobiology, and Neurosurgery, Barrow Neurological Institute, Phoenix, AZ 85013
Proc Natl Acad Sci U S A 110:6175-80. 2013..These findings challenge the view that exploration and fixation are dichotomous, suggesting instead that visual fixation is functionally equivalent to visual exploration on a spatially focused scale... - Optimizing the temporal dynamics of light to human perceptionHector Rieiro
Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA
Proc Natl Acad Sci U S A 109:19828-33. 2012..A practical outcome of this study is that tuning light-emitting devices to match the temporal dynamics of the human visual system's temporal response function will result in significant power savings... - The role of feedback in visual masking and visual processingStephen L Macknik
Barrow Neurological Institute, Phoenix, USA
Adv Cogn Psychol 3:125-52. 2007..Finally, we propose a new set of neurophysiological standards needed to establish whether any given neuron or brain circuit may be the neural substrate of awareness... - Attention and awareness in stage magic: turning tricks into researchStephen L Macknik
Barrow Neurological Institute, 350 West Thomas Road, Phoenix, Arizona 85013, USA
Nat Rev Neurosci 9:871-9. 2008..Such methods could be exploited to directly study the behavioural and neural basis of consciousness itself, for instance through the use of brain imaging and other neural recording techniques... - Visibility, visual awareness, and visual masking of simple unattended targets are confined to areas in the occipital cortex beyond human V1/V2Peter U Tse
Department of Psychological and Brain Sciences, Dartmouth College, H.B. 6207, Moore Hall, Hanover, NH 03755, USA
Proc Natl Acad Sci U S A 102:17178-83. 2005.... - Induced visual fading of complex imagesDaniel Simons
Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
J Vis 6:1093-101. 2006.... - Task difficulty modulates the activity of specific neuronal populations in primary visual cortexYao Chen
Department of Biological Sciences, State University of New York, 33 West 42nd Street, New York, New York 10036, USA
Nat Neurosci 11:974-82. 2008..Our results provide strong support for center-surround models of spatial attention and suggest that task difficulty modulates the activity of specific populations of neurons in the primary visual cortex...