C M Schor

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Saccades reduce latency and increase velocity of ocular accommodation
    C M Schor
    School of Optometry, Vision Science Group, University of California, Berkeley 94720 2020, USA
    Vision Res 39:3769-95. 1999
  2. ncbi request reprint Pulse-step models of control strategies for dynamic ocular accommodation and disaccommodation
    Clifton M Schor
    School of Optometry, University of California at Berkeley, Berkeley, CA 94720, USA
    Vision Res 46:242-58. 2006
  3. pmc Adaptive calibration of dynamic accommodation--implications for accommodating intraocular lenses
    Clifton M Schor
    School of Optometry and Vision Science, University of California at Berkeley, Berkeley, CA 94720, USA
    J Refract Surg 24:984-90. 2008
  4. ncbi request reprint Adaptive control of vergence in humans
    Clifton M Schor
    University of California at Berkeley, School of Optometry, Berkeley, California 94720, USA
    Ann N Y Acad Sci 956:297-305. 2002
  5. ncbi request reprint Plasticity of convergence-dependent variations of cyclovergence with vertical gaze
    C M Schor
    School of Optometry, University of California, Berkeley CA 94720 2020, USA
    Vision Res 41:3353-69. 2001
  6. ncbi request reprint Envelope size tuning for stereo-depth perception of small and large disparities
    C M Schor
    School of Optometry, University of California, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 41:2555-67. 2001
  7. ncbi request reprint Dynamic performance of accommodating intraocular lenses in a negative feedback control system: a simulation-based study
    Clifton M Schor
    Vision Science Group, School of Optometry, University of California at Berkeley, Berkeley, CA 94720 2020, USA
    Comput Biol Med 37:1020-35. 2007
  8. ncbi request reprint Spatial-frequency and contrast tuning of the transient-stereopsis system
    C M Schor
    School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 38:3057-68. 1998
  9. ncbi request reprint A cross-coupling model of vertical vergence adaptation
    J W McCandless
    Vision Science Group, School of Optometry, University of California, Berkeley 94720, USA
    IEEE Trans Biomed Eng 43:24-34. 1996
  10. ncbi request reprint Orientation tuning of the transient-stereopsis system
    M Edwards
    School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 39:2717-27. 1999

Detail Information

Publications46

  1. ncbi request reprint Saccades reduce latency and increase velocity of ocular accommodation
    C M Schor
    School of Optometry, Vision Science Group, University of California, Berkeley 94720 2020, USA
    Vision Res 39:3769-95. 1999
    ..J., & Cumming, B. G. (1986). Journal of Neurophysiology, 55, 915-930; Zhang, Y., Mays, L. E., & Gamli, P. D. R. (1992). Journal of Neurophysiology, 67, 944-960]...
  2. ncbi request reprint Pulse-step models of control strategies for dynamic ocular accommodation and disaccommodation
    Clifton M Schor
    School of Optometry, University of California at Berkeley, Berkeley, CA 94720, USA
    Vision Res 46:242-58. 2006
    ..Mismatched amplitudes of phasic-velocity and tonic-position signals in disaccommodation produce unstable step responses...
  3. pmc Adaptive calibration of dynamic accommodation--implications for accommodating intraocular lenses
    Clifton M Schor
    School of Optometry and Vision Science, University of California at Berkeley, Berkeley, CA 94720, USA
    J Refract Surg 24:984-90. 2008
    ..Using human experiments, we also investigated whether the accommodative system has the capacity for adaptive recalibration in response to changes in lens biomechanics...
  4. ncbi request reprint Adaptive control of vergence in humans
    Clifton M Schor
    University of California at Berkeley, School of Optometry, Berkeley, California 94720, USA
    Ann N Y Acad Sci 956:297-305. 2002
    ..Passive orbital mechanics simplify the neural control for precise vertical vergence and cyclovergence that are needed to achieve binocular alignment under open-loop conditions in response to perceived spatial location...
  5. ncbi request reprint Plasticity of convergence-dependent variations of cyclovergence with vertical gaze
    C M Schor
    School of Optometry, University of California, Berkeley CA 94720 2020, USA
    Vision Res 41:3353-69. 2001
    ....
  6. ncbi request reprint Envelope size tuning for stereo-depth perception of small and large disparities
    C M Schor
    School of Optometry, University of California, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 41:2555-67. 2001
    ..Thus it would appear that envelope size and, to a greater extent, temporal synchrony of the dichoptic stimuli [Perception 24 (1995) 33] are the primary means for selecting matched binocular inputs for transient stereopsis...
  7. ncbi request reprint Dynamic performance of accommodating intraocular lenses in a negative feedback control system: a simulation-based study
    Clifton M Schor
    Vision Science Group, School of Optometry, University of California at Berkeley, Berkeley, CA 94720 2020, USA
    Comput Biol Med 37:1020-35. 2007
    ..Simulations indicate that neural control must be recalibrated to avoid unstable dynamic accommodation with A-IOLs. An interactive web-model of A-IOL illustrating these properties is available at http://schorlab.berkeley.edu...
  8. ncbi request reprint Spatial-frequency and contrast tuning of the transient-stereopsis system
    C M Schor
    School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 38:3057-68. 1998
    ....
  9. ncbi request reprint A cross-coupling model of vertical vergence adaptation
    J W McCandless
    Vision Science Group, School of Optometry, University of California, Berkeley 94720, USA
    IEEE Trans Biomed Eng 43:24-34. 1996
    ..The model provides a biologically plausible mechanism for vertical vergence adaptation...
  10. ncbi request reprint Orientation tuning of the transient-stereopsis system
    M Edwards
    School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 39:2717-27. 1999
    ....
  11. ncbi request reprint Adaptation of torsional eye alignment in relation to smooth pursuit and saccades
    J S Maxwell
    University of California, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 41:3735-49. 2001
    ..During saccades, the dynamics of the cyclovergence training aftereffect more closely resembled the dynamics of cyclofusional movements than the dynamics of the saccades with which they were associated...
  12. ncbi request reprint Depth aliasing by the transient-stereopsis system
    M Edwards
    School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 39:4333-40. 1999
    ..e. it was phase, not absolute disparity dependent. Based upon these results, we conclude that while the sustained system implements the half-cycle disparity-processing limit, the transient system does not...
  13. pmc How does saccade adaptation affect visual perception?
    Teresa D Hernandez
    Vision Science Group, School of Optometry, University of California, Berkeley, CA, USA
    J Vis 8:3.1-16. 2008
    ..Changes in perceived direction resulting from saccade adaptation are mainly influenced by extra-retinal factors with a small retinal component in the lengthening condition...
  14. ncbi request reprint Context-specific adaptation of vertical vergence to correlates of eye position
    C M Schor
    Vision Science Group, School of Optometry, University of California, Berkeley 94720, USA
    Vision Res 37:1929-37. 1997
    ..The results are modeled with an association matrix whose inputs are two classes of eye position and whose weighted output is vertical vergence...
  15. ncbi request reprint Lens induced aniso-accommodation
    L Marran
    Vision Science Group, University of California, Berkeley 94720, USA
    Vision Res 38:3601-19. 1998
    ..Aniso-accommodation also may provide an appropriate efferent feedback signal for each eye's unique refractive error which could be used to guide developmental isometropization (attainment of equal refractive error in the two eyes.)...
  16. ncbi request reprint Envelope size-tuning for transient disparity vergence
    M Sato
    Vision Science Group, School of Optometry, 360 Minor Hall, University of California at Berkeley, Berkeley, CA 94720-2020, USA
    Vision Res 41:1695-707. 2001
    ..However, the transient-vergence system also responds to monocular, hemi-retinal stimuli over a larger (3-octave) range. Thus some of the observed "binocular tuning" may be due to these monocular responses...
  17. ncbi request reprint First- and second-order processing in transient stereopsis
    M Edwards
    School of Optometry, University of California, 94720, Berkeley, CA, USA
    Vision Res 40:2645-51. 2000
    ..This finding of interaction between first- and second-order stereoscopic processing is different from the independence that has been found with the motion system...
  18. ncbi request reprint The coordination of binocular eye movements: vertical and torsional alignment
    James S Maxwell
    University of California, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 46:3537-48. 2006
    ....
  19. ncbi request reprint The extended horopter: quantifying retinal correspondence across changes of 3D eye position
    Kai M Schreiber
    School of Optometry, University of California, Berkeley, CA, USA
    J Vis 6:64-74. 2006
    ....
  20. ncbi request reprint A pulse-step model of accommodation dynamics in the aging eye
    Clifton M Schor
    School of Optometry, University of California at Berkeley, Vision Science Group, 512 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 45:1237-54. 2005
    ..The model illustrates a neural control strategy that is similar to the classical neural control model of step changes by the saccadic and vergence systems...
  21. ncbi request reprint A virtual ophthalmotrope illustrating oculomotor coordinate systems and retinal projection geometry
    Kai M Schreiber
    School of Optometry, UC Berkeley, Berkeley, CA, USA
    J Vis 7:4.1-14. 2007
    ..The virtual ophthalmotrope shows the influence of these oculomotor patterns on retinal projection geometry...
  22. ncbi request reprint Symmetrical horizontal vergence contributes to the asymmetrical pursuit of targets in depth
    James S Maxwell
    University of California, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 44:3015-24. 2004
    ....
  23. doi request reprint Neuromuscular plasticity and rehabilitation of the ocular near response
    Clifton M Schor
    School of Optometry, University of California, Berkeley, CA 94720 2020, USA
    Optom Vis Sci 86:E788-802. 2009
    ..The adaptable near-response couplings form the basis of an area of orthoptics that optimizes visual performance by facilitating our natural ability to calibrate neural pathways underlying binocular postural reflexes...
  24. ncbi request reprint Eye movements facilitate stereo-slant discrimination when horizontal disparity is noisy
    Ellen M Berends
    Vision Science Group, School of Optometry, University of California, Berkeley, CA, USA
    J Vis 3:780-94. 2003
    ..Both methods elevated slant-discrimination thresholds when horizontal disparity noise was present, suggesting that vertical disparity is used as a cue for azimuth...
  25. ncbi request reprint Thresholds for stereo-slant discrimination between spatially separated targets are influenced mainly by visual and memory factors but not oculomotor instability
    Zhi Lei Zhang
    Vision Science Group, School of Optometry, University of California, Berkeley, CA, USA
    J Vis 3:710-24. 2003
    ..Thus, oculomotor error increases with target separation, and it is an important factor in stereo-depth discrimination...
  26. ncbi request reprint Comparison of the time courses of concomitant and nonconcomitant vertical phoria adaptation
    Erich W Graf
    Vision Science Group, Department of Optometry, University of California Berkeley, 360 Minor Hall, School of Optometry, Berkeley, CA 94720 2020, USA
    Vision Res 43:567-76. 2003
    ..The results support the notion that concomitant and nonconcomitant phoria adaptation involve different mechanisms but not the contention that adaptation to prisms is easier or more robust than adaptation to lenses...
  27. pmc The first and second order dynamics of accommodative convergence and disparity convergence
    James Maxwell
    University of California at Berkeley, 360 Minor Hall, Berkeley, CA 94720, United States
    Vision Res 50:1728-39. 2010
    ....
  28. doi request reprint Charles F. Prentice award lecture 2008: surgical correction of presbyopia with intraocular lenses designed to accommodate
    Clifton M Schor
    School of Optometry, University of California, Berkeley, Berkeley, California 94720 2020, USA
    Optom Vis Sci 86:E1028-41. 2009
    ..Other design issues for A-IOLs include stability of optical properties, aberrations and image quality, and interactions of restored accommodation with binocular eye alignment (the near response)...
  29. ncbi request reprint Unconstrained stereoscopic matching of lines
    R van Ee
    School of Optometry, University of California, Berkeley, USA
    Vision Res 40:151-62. 2000
    ..This operating range can be extended vertically when matches are constrained by image primitives...
  30. ncbi request reprint The effect of target proximity on the aniso-accommodative response
    L Marran
    School of Optometry, University of California, Berkeley 94720, USA
    Ophthalmic Physiol Opt 19:376-92. 1999
    ..Alternatively, these subjects may have had a lower threshold to proximal stimuli and experienced target proximity at the more distant (1 m) viewing condition...
  31. pmc Variation of binocular-vertical fusion amplitude with convergence
    Shrikant R Bharadwaj
    School of Optometry, University of California at Berkeley, Berkeley, CA, USA
    Invest Ophthalmol Vis Sci 48:1592-600. 2007
    ..VFA at several convergence angles was measured to obtain a quantitative description of the changes in VFA with convergence...
  32. doi request reprint The surface of the empirical horopter
    Kai M Schreiber
    School of Optometry, University of California at Berkeley, CA, USA
    J Vis 8:7.1-20. 2008
    ....
  33. pmc The influence of first near-spectacle reading correction on accommodation and its interaction with convergence
    Indu Vedamurthy
    School of Optometry, University of California at Berkeley, Berkeley, California 94720, USA
    Invest Ophthalmol Vis Sci 50:4215-22. 2009
    ....
  34. ncbi request reprint Initial destination of the disaccommodation step response
    Shrikant R Bharadwaj
    School of Optometry, University of California at Berkeley, 94720, USA
    Vision Res 46:1959-72. 2006
    ..These observations suggest that cycloplegic refractive state is a good behavioral correlate of initial destination of disaccommodation step responses...
  35. ncbi request reprint Adaptation to the induced effect stimulus normalizes surface slant perception and recalibrates eye position signals for azimuth
    Baoxia Liu
    Vision Science Group, School of Optometry, University of California, Berkeley, CA 94720, USA
    J Vis 5:808-22. 2005
    ....
  36. ncbi request reprint Fatigue reduces tonic accommodation
    S Hasebe
    360 Minor Hall, School of Optometry, Vision Science Group, University of California-Berkeley, Berkeley, CA 94720-2020, USA
    Ophthalmic Physiol Opt 21:151-60. 2001
    ..Accommodative fatigue could be responsible for the lower values of TA observed in counter-adaptive responses to sustained accommodative or convergence effort...
  37. ncbi request reprint Spatial interactions minimize relative disparity between adjacent surfaces
    Z Zhang
    School of Optometry, University of California, Berkeley, CA 94720, USA
    Vision Res 41:2995-3007. 2001
    ..uncrossed), an idiosyncratic depth bias served as a tie-breaker. The present results show that absolute disparity matches are constrained to minimize relative disparity between adjacent features...
  38. ncbi request reprint Acceleration characteristics of human ocular accommodation
    Shrikant R Bharadwaj
    Vision Science Group, School of Optometry, University of California at Berkeley, 512 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 45:17-28. 2005
    ....
  39. ncbi request reprint Temporal aspects of spatial interactions affecting stereo-matching solutions
    Zhi Lei Zhang
    Program in Vision Science, University of California at Berkeley, Berkeley, CA 94720 2020, USA
    Vision Res 44:3183-92. 2004
    ..Likelihood of MRD decreased as ISI increased (48.9 ms time constant) and increased as contrast was reduced for short ISIs, suggesting that monocular persistence (temporal impulse response) underlies the temporal interaction...
  40. doi request reprint Perisaccadic stereo depth with zero retinal disparity
    Zhi Lei Zhang
    School of Optometry, University of California at Berkeley, Berkeley, CA 94720 2020, USA
    Curr Biol 20:1176-81. 2010
    ..This is the first demonstration that a coding scheme other than retinal disparity has a role in human stereopsis...
  41. ncbi request reprint Effects of partial occlusion on perceived slant difference
    Baoxia Liu
    Vision Science Group, School of Optometry, University of California, Berkeley, CA 94720, USA
    J Vis 5:969-82. 2005
    ..The effect of the occluder on perceived slant differences could have resulted from either a reduction of slant contrast or an increase of slant assimilation...
  42. pmc Dynamic control of ocular disaccommodation: first and second-order dynamics
    Shrikant R Bharadwaj
    School of Optometry, University of California at Berkeley, CA 94720, USA
    Vision Res 46:1019-37. 2006
    ..Large discrepancies between the primary destination and desired final position appear to produce overshoots and oscillations of small responses from proximal starting positions...
  43. doi request reprint Illusory contrast-induced shifts in binocular visual direction bias saccadic eye movements toward the perceived target position
    Julia A Weiler
    School of Optometry, University of California, Berkeley, CA 94720 2020, USA
    J Vis 7:3.1-18. 2007
    ..The oculomotor system, however, was close to following linear summation...
  44. ncbi request reprint Changes in cyclotorsion and vertical eye alignment during prolonged monocular occlusion
    Erich W Graf
    Vision Science Group, Department of Optometry, University of California Berkeley, 360 Minor Hall, Berkeley, CA 94720 2020, USA
    Vision Res 42:1185-94. 2002
    ..Simulations with Orbit(TM) suggest that these non-concomitant changes in vertical phoria with a concomitant excyclophoria may be based upon orbital mechanics. Excyclophoria appears to be the baseline state of binocular alignment...
  45. doi request reprint Effects of luminance and saccadic suppression on perisaccadic spatial distortions
    Zhi Lei Zhang
    Vision Science Group, School of Optometry, University of California, Berkeley, CA 94720, USA
    J Vis 8:22.1-18. 2008
    ..To explain these effects, we propose that stimulus-dependent nonlinearities (contrast gain control and saccadic suppression) influence the duration of the temporal impulse response of both single- and double-flashed stimuli...
  46. ncbi request reprint Stereo-slant adaptation is high level and does not involve disparity coding
    Ellen M Berends
    Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
    J Vis 5:71-80. 2005
    ..These results suggest that two types of adaptation occurred, namely adaptation on a mapping/perception level and adaptation contingent on distance...