Susana Martinez-Conde

Summary

Affiliation: Barrow Neurological Institute
Country: USA

Publications

  1. doi request reprint From Exploration to Fixation: An Integrative View of Yarbus's Vision
    Susana Martinez-Conde
    Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
    Perception 44:884-99. 2015
  2. pmc Stronger misdirection in curved than in straight motion
    Jorge Otero-Millan
    Neurobiology, Barrow Neurological Institute Phoenix, AZ, USA
    Front Hum Neurosci 5:133. 2011
  3. pmc Social misdirection fails to enhance a magic illusion
    Jie Cui
    Division of Neurobiology, Barrow Neurological Institute Phoenix, AZ, USA
    Front Hum Neurosci 5:103. 2011
  4. pmc The effects of fixation target size and luminance on microsaccades and square-wave jerks
    Michael B McCamy
    Department of Neurobiology, Barrow Neurological Institute, USA
    Peerj 1:e9. 2013
  5. doi request reprint The impact of microsaccades on vision: towards a unified theory of saccadic function
    Susana Martinez-Conde
    Department of Neurobiology, Barrow Neurological Institute, 350W Thomas Rd, Phoenix, Arizona 85013, USA
    Nat Rev Neurosci 14:83-96. 2013
  6. pmc The function of bursts of spikes during visual fixation in the awake primate lateral geniculate nucleus and primary visual cortex
    Susana 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
  7. doi request reprint Fixational eye movements across vertebrates: comparative dynamics, physiology, and perception
    Susana Martinez-Conde
    Barrow Neurological Institute, Phoenix, AZ 85013, USA
    J Vis 8:28.1-16. 2008
  8. ncbi request reprint BOLD activation varies parametrically with corner angle throughout human retinotopic cortex
    Xoana G Troncoso
    Department of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA
    Perception 36:808-20. 2007
  9. ncbi request reprint Fixational eye movements in normal and pathological vision
    Susana Martinez-Conde
    Department of Neurobiology, Barrow Neurological Institute, 350 W Thomas Road, Phoenix, AZ 85013, USA
    Prog Brain Res 154:151-76. 2006
  10. ncbi request reprint Microsaccades counteract visual fading during fixation
    Susana Martinez-Conde
    Barrow Neurological Institute, 350 West Thomas Road, Phoenix, Arizona 85013, USA
    Neuron 49:297-305. 2006

Collaborators

Detail Information

Publications48

  1. doi request reprint From Exploration to Fixation: An Integrative View of Yarbus's Vision
    Susana Martinez-Conde
    Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
    Perception 44:884-99. 2015
    ..Such apparently disparate viewing behaviors may represent the extremes of a single continuum of oculomotor performance that operates across spatial scales when we search the visual world. ..
  2. pmc Stronger misdirection in curved than in straight motion
    Jorge Otero-Millan
    Neurobiology, Barrow Neurological Institute Phoenix, AZ, USA
    Front Hum Neurosci 5:133. 2011
    ....
  3. pmc Social misdirection fails to enhance a magic illusion
    Jie 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...
  4. pmc The effects of fixation target size and luminance on microsaccades and square-wave jerks
    Michael B McCamy
    Department of Neurobiology, Barrow Neurological Institute, USA
    Peerj 1:e9. 2013
    ....
  5. doi request reprint The impact of microsaccades on vision: towards a unified theory of saccadic function
    Susana 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...
  6. pmc The function of bursts of spikes during visual fixation in the awake primate lateral geniculate nucleus and primary visual cortex
    Susana 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...
  7. doi request reprint Fixational eye movements across vertebrates: comparative dynamics, physiology, and perception
    Susana 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...
  8. ncbi request reprint BOLD activation varies parametrically with corner angle throughout human retinotopic cortex
    Xoana 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...
  9. ncbi request reprint Fixational eye movements in normal and pathological vision
    Susana 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...
  10. ncbi request reprint Microsaccades counteract visual fading during fixation
    Susana 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...
  11. ncbi request reprint The role of fixational eye movements in visual perception
    Susana Martinez-Conde
    Barrow Neurological Institute, St Joseph s Hospital, 350 W Thomas Road, Phoenix, Arizona 85013, USA
    Nat Rev Neurosci 5:229-40. 2004
  12. doi request reprint Microsaccades: a neurophysiological analysis
    Susana 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...
  13. pmc The linearity and selectivity of neuronal responses in awake visual cortex
    Yao Chen
    Department of Biological Sciences, State University of New York, NY, USA
    J Vis 9:12.1-17. 2009
    ..In contrast, the spontaneous firing rate is best correlated to the response selectivity and response latency to stimuli...
  14. ncbi request reprint Dichoptic visual masking reveals that early binocular neurons exhibit weak interocular suppression: implications for binocular vision and visual awareness
    Stephen L Macknik
    Barrow Neurological Institute, Phoenix, AZ 85013, USA
    J Cogn Neurosci 16:1049-59. 2004
    ....
  15. doi request reprint Microsaccades and blinks trigger illusory rotation in the "rotating snakes" illusion
    Jorge 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...
  16. pmc Characteristics of Spontaneous Square-Wave Jerks in the Healthy Macaque Monkey during Visual Fixation
    Francisco M Costela
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, United States of America Interdisciplinary Graduate program in Neuroscience, Arizona State University, Tempe, AZ, United States of America
    PLoS ONE 10:e0126485. 2015
    ..These findings constrain the potential brain areas and mechanisms underlying the generation of fixational saccades in human and nonhuman primates. ..
  17. doi request reprint Highly informative natural scene regions increase microsaccade production during visual scanning
    Michael B McCamy
    Departments of Neurobiology and Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona 85013, School of Mathematical and Statistical Sciences, Arizona State University, Tempe, Arizona 85287, Department of Signal Theory and Communications, University of Vigo, E 36310 Vigo, Spain, and Mind, Brain, and Behavior Research Center, University of Granada, E 18071 Granada, Spain
    J Neurosci 34:2956-66. 2014
    ..Increased microsaccade production was not explained by increased fixation duration, suggesting that the visual system specifically uses microsaccades to heighten information acquisition from informative regions. ..
  18. doi request reprint Microsaccadic efficacy and contribution to foveal and peripheral vision
    Michael B McCamy
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, Arizona 85013, USA
    J Neurosci 32:9194-204. 2012
    ....
  19. pmc An oculomotor continuum from exploration to fixation
    Jorge Otero-Millan
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA
    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...
  20. doi request reprint Saccades and microsaccades during visual fixation, exploration, and search: foundations for a common saccadic generator
    Jorge 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...
  21. pmc V1 neurons respond differently to object motion versus motion from eye movements
    Xoana G Troncoso
    Barrow Neurological Institute, 350 W Thomas Road, Phoenix, Arizona 85013, USA
    Nat Commun 6:8114. 2015
    ..These findings indicate that V1 neurons can respond differently to internally and externally generated motion, and expand V1's potential role in information processing and visual stability during eye movements. ..
  22. doi request reprint Corner salience varies linearly with corner angle during flicker-augmented contrast: a general principle of corner perception based on Vasarely's artworks
    Xoana 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...
  23. pmc Microsaccades drive illusory motion in the Enigma illusion
    Xoana 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...
  24. pmc Distinctive features of saccadic intrusions and microsaccades in progressive supranuclear palsy
    Jorge 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...
  25. pmc Fixational eye movement correction of blink-induced gaze position errors
    Francisco M Costela
    Barrow Neurological Institute, Phoenix, Arizona, United States of America Interdisciplinary Graduate program in Neuroscience, Arizona State University, Phoenix, Arizona, United States of America
    PLoS ONE 9:e110889. 2014
    ..These findings provide new insights about eye position control during fixation, and indicate a more general role of microsaccades in fixation correction than thought previously. ..
  26. doi request reprint Microsaccade and drift dynamics reflect mental fatigue
    Leandro L Di Stasi
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
    Eur J Neurosci 38:2389-98. 2013
    ..These findings suggest that fixational eye movement dynamics have the potential to signal the nervous system's activation state. ..
  27. doi request reprint Triggering mechanisms in microsaccade and saccade generation: a novel proposal
    Jorge Otero-Millan
    Barrow Neurological Institute, Phoenix, Arizona 85013, USA
    Ann N Y Acad Sci 1233:107-16. 2011
    ....
  28. doi request reprint Saccadic eye movement metrics reflect surgical residents' fatigue
    Leandro L Di Stasi
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ Cognitive Ergonomics Group, Mind, Brain, and Behavior Research Center CIMCYC, University of Granada, Granada, Spain Joint Center University of Granada Spanish Army Training and Doctrine Command, Spain Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ St Joseph s Hospital and Medical Center, Phoenix, AZ Learning, Emotion and Decision Group, Mind, Brain, and Behavior Research Center CIMCYC, University of Granada, Granada, Spain
    Ann Surg 259:824-9. 2014
    ..We monitored surgical residents' fatigue levels during their call day using (1) eye movement metrics, (2) objective measures of laparoscopic surgical performance, and (3) subjective reports based on standardized questionnaires...
  29. ncbi request reprint Novel visual illusions related to Vasarely's 'nested squares' show that corner salience varies with corner angle
    Xoana 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...
  30. ncbi request reprint Windows on the mind
    Susana Martinez-Conde
    Barrow Neurological Institute, Phoenix, USA
    Sci Am 297:56-63. 2007
  31. doi request reprint Effects of long and short simulated flights on the saccadic eye movement velocity of aviators
    Leandro L Di Stasi
    Barrow Neurological Institute, Phoenix, AZ, USA Mind, Brain, and Behavior Research Center CIMCYC, University of Granada, Granada, Spain Joint Center University of Granada Spanish Army Training and Doctrine Command, Granada, Spain
    Physiol Behav 153:91-6. 2016
    ..We found a decrease in saccadic velocities after long simulated flights compared to short simulated flights. These results suggest that saccadic velocity could serve as a biomarker of aviator fatigue...
  32. pmc Task difficulty modulates the activity of specific neuronal populations in primary visual cortex
    Yao 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...
  33. pmc Simultaneous recordings of human microsaccades and drifts with a contemporary video eye tracker and the search coil technique
    Michael B McCamy
    Barrow Neurological Institute, Phoenix, Arizona, United States of America
    PLoS ONE 10:e0128428. 2015
    ..Overall, our combined results suggest that contemporary video tracking now approaches the search coil for measuring FEMs. ..
  34. pmc Saccades during attempted fixation in parkinsonian disorders and recessive ataxia: from microsaccades to square-wave jerks
    Jorge 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...
  35. doi request reprint Effects of driving time on microsaccadic dynamics
    Leandro L Di Stasi
    Barrow Neurological Institute, Phoenix, AZ, USA
    Exp Brain Res 233:599-605. 2015
    ..Participants drove for 2 h in a virtual driving environment while we recorded their eye movements. Microsaccade velocities decreased with driving time, suggesting a potential effect of fatigue on microsaccades during driving. ..
  36. doi request reprint Microsaccades counteract perceptual filling-in
    Xoana 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...
  37. doi request reprint Attention and awareness in stage magic: turning tricks into research
    Stephen 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...
  38. doi request reprint Task difficulty in mental arithmetic affects microsaccadic rates and magnitudes
    Eva Siegenthaler
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA
    Eur J Neurosci 39:287-94. 2014
    ..We propose that changes in microsaccade rates and magnitudes with task difficulty are mediated by the effects of varying attentional inputs on the rostral superior colliculus activity map. ..
  39. doi request reprint Saccadic velocity as an arousal index in naturalistic tasks
    Leandro L Di Stasi
    Department of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, AZ 85013, USA
    Neurosci Biobehav Rev 37:968-75. 2013
    ..We moreover discuss the hypothesis that changes in saccadic velocity indicate variations in sympathetic nervous system activation; that is, variations in arousal...
  40. pmc Simultaneous recordings of ocular microtremor and microsaccades with a piezoelectric sensor and a video-oculography system
    Michael 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...
  41. pmc Different fixational eye movements mediate the prevention and the reversal of visual fading
    Michael B McCamy
    Department of Neurobiology, Barrow Neurological Institute, Phoenix, AZ, USA School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, USA
    J Physiol 592:4381-94. 2014
    ..These findings may help to reconcile the long-standing controversy concerning the comparative roles of microsaccades and drift in visibility during fixation...
  42. pmc Perceptual elements in Penn & Teller's "Cups and Balls" magic trick
    Hector 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...
  43. pmc Optimizing the temporal dynamics of light to human perception
    Hector 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...
  44. pmc The role of feedback in visual masking and visual processing
    Stephen 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...
  45. pmc Visibility, visual awareness, and visual masking of simple unattended targets are confined to areas in the occipital cortex beyond human V1/V2
    Peter 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
    ....
  46. ncbi request reprint Induced visual fading of complex images
    Daniel Simons
    Department of Psychology and Beckman Institute, University of Illinois, Champaign, IL, USA
    J Vis 6:1093-101. 2006
    ....