Americo A Migliaccio

Summary

Affiliation: Johns Hopkins University
Country: USA

Publications

  1. ncbi request reprint Vergence-mediated changes in the axis of eye rotation during the human vestibulo-ocular reflex can occur independent of eye position
    Americo A Migliaccio
    Eye and Ear Research Unit, Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Sydney, Australia
    Exp Brain Res 151:238-48. 2003
  2. doi request reprint Vergence-mediated modulation of the human angular vestibulo-ocular reflex is unaffected by canal plugging
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology, Head and Neck Surgery, Johns Hopkins University School of Medicine, Ross Building, Room 710, 720 Rutland Avenue, Baltimore, MD 21205, USA
    Exp Brain Res 186:581-7. 2008
  3. ncbi request reprint Vergence-mediated modulation of the human horizontal vestibulo-ocular reflex is eliminated by a partial peripheral gentamicin lesion
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery, Ross Building, Room 710, Johns Hopkins University School of Medicine, 720 Rutland Ave, Baltimore, MD 21205, USA
    Exp Brain Res 159:92-8. 2004
  4. pmc Axis of eye rotation changes with head-pitch orientation during head impulses about earth-vertical
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery School of Medicine, Johns Hopkins University, Baltimore, MD, USA
    J Assoc Res Otolaryngol 7:140-50. 2006
  5. ncbi request reprint The three-dimensional vestibulo-ocular reflex evoked by high-acceleration rotations in the squirrel monkey
    Americo A Migliaccio
    Department of Otolaryngology Head and Neck Surgery, Ross Building, Room 710, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA
    Exp Brain Res 159:433-46. 2004
  6. ncbi request reprint The vestibulo-ocular reflex response to head impulses rarely decreases after cochlear implantation
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Otol Neurotol 26:655-60. 2005
  7. pmc Mechanism of dynamic visual acuity recovery with vestibular rehabilitation
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, MD 21287 0910, USA
    Arch Phys Med Rehabil 89:500-7. 2008
  8. pmc Effect of vestibular rehabilitation on passive dynamic visual acuity
    Matthew Scherer
    Department of Physical Therapy and Rehabilitation Science, University of Maryland, Baltimore, MD, USA
    J Vestib Res 18:147-57. 2008
  9. ncbi request reprint Angular vestibulo-ocular reflex gains correlate with vertigo control after intratympanic gentamicin treatment for Meniere's disease
    Frank R Lin
    Department of Otolaryngology Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Ann Otol Rhinol Laryngol 114:777-85. 2005
  10. ncbi request reprint The effect of binocular eye position and head rotation plane on the human torsional vestibuloocular reflex
    Americo A Migliaccio
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University, MA 21205, USA
    Vision Res 46:2475-86. 2006

Research Grants

  1. Galvanic Effects on the Human Vestibuloocular Reflex
    Americo Migliaccio; Fiscal Year: 2007

Detail Information

Publications31

  1. ncbi request reprint Vergence-mediated changes in the axis of eye rotation during the human vestibulo-ocular reflex can occur independent of eye position
    Americo A Migliaccio
    Eye and Ear Research Unit, Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Sydney, Australia
    Exp Brain Res 151:238-48. 2003
    ..5 g and may have contributed to the increased torsional component observed during near viewing. Our data show that vergence-mediated eye movements obey a VOR/Listing's Law compromise strategy independent of the initial eye position...
  2. doi request reprint Vergence-mediated modulation of the human angular vestibulo-ocular reflex is unaffected by canal plugging
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology, Head and Neck Surgery, Johns Hopkins University School of Medicine, Ross Building, Room 710, 720 Rutland Avenue, Baltimore, MD 21205, USA
    Exp Brain Res 186:581-7. 2008
    ..We hypothesize that canal plugging, unlike gentamicin or galvanic ablation, has no effect on vergence-mediated modulation of the AVOR because plugging does not preferentially affect irregular afferents...
  3. ncbi request reprint Vergence-mediated modulation of the human horizontal vestibulo-ocular reflex is eliminated by a partial peripheral gentamicin lesion
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery, Ross Building, Room 710, Johns Hopkins University School of Medicine, 720 Rutland Ave, Baltimore, MD 21205, USA
    Exp Brain Res 159:92-8. 2004
    ..Our findings are consistent with the hypothesis that irregular afferents provide the necessary signal for vergence-mediated modulation of the VOR...
  4. pmc Axis of eye rotation changes with head-pitch orientation during head impulses about earth-vertical
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery School of Medicine, Johns Hopkins University, Baltimore, MD, USA
    J Assoc Res Otolaryngol 7:140-50. 2006
    ..Thus, even when the orientation of Listing's plane and eye position in the orbit are fixed, the axis of eye rotation during the VOR reflects a compromise between the requirements of Listing's law and a perfectly compensatory VOR...
  5. ncbi request reprint The three-dimensional vestibulo-ocular reflex evoked by high-acceleration rotations in the squirrel monkey
    Americo A Migliaccio
    Department of Otolaryngology Head and Neck Surgery, Ross Building, Room 710, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA
    Exp Brain Res 159:433-46. 2004
    ..In addition, we show that the gain, phase and axis of eye rotation during LARP and RALP head rotations can be predicted once the pitch and roll responses are characterized...
  6. ncbi request reprint The vestibulo-ocular reflex response to head impulses rarely decreases after cochlear implantation
    Americo A Migliaccio
    Laboratory of Vestibular Neurophysiology, Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Otol Neurotol 26:655-60. 2005
    ..Measure vestibular function using the head impulse test and assess the change in function due to unilateral cochlear implantation...
  7. pmc Mechanism of dynamic visual acuity recovery with vestibular rehabilitation
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, MD 21287 0910, USA
    Arch Phys Med Rehabil 89:500-7. 2008
    ..To determine why dynamic visual acuity (DVA) improves after vestibular rehabilitation in people with vestibular hypofunction...
  8. pmc Effect of vestibular rehabilitation on passive dynamic visual acuity
    Matthew Scherer
    Department of Physical Therapy and Rehabilitation Science, University of Maryland, Baltimore, MD, USA
    J Vestib Res 18:147-57. 2008
    ..Each subject demonstrated a reduction in the ratio of compensatory saccades to head impulses after VPT. Preliminary data suggest that active gaze stability exercises may contribute to improvements in pDVA in some individuals...
  9. ncbi request reprint Angular vestibulo-ocular reflex gains correlate with vertigo control after intratympanic gentamicin treatment for Meniere's disease
    Frank R Lin
    Department of Otolaryngology Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
    Ann Otol Rhinol Laryngol 114:777-85. 2005
    ..The objective of our study was to determine whether angular vestibulo-ocular reflex (aVOR) gains correlated with vertigo control after intratympanic gentamicin treatment for Meniere's disease...
  10. ncbi request reprint The effect of binocular eye position and head rotation plane on the human torsional vestibuloocular reflex
    Americo A Migliaccio
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University, MA 21205, USA
    Vision Res 46:2475-86. 2006
    ....
  11. pmc Retention of VOR gain following short-term VOR adaptation
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 601 N Caroline St, JHOC Room 6245, Baltimore, MD 21287 0910, USA
    Exp Brain Res 187:117-27. 2008
    ..We also show that the adapting head position determines the magnitude of VOR adaptation...
  12. pmc The effects of cochlear implantation on vestibular function
    Thuy Anh N Melvin
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
    Otol Neurotol 30:87-94. 2009
    ..Determine the risk posed by cochlear implantation (CI) to the labyrinth...
  13. pmc Adaptation of the vestibulo-ocular reflex for forward-eyed foveate vision
    Americo A Migliaccio
    Dept of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
    J Physiol 588:3855-67. 2010
    ..In contrast, the lateral-eyed chinchilla faces different adaptive demands and thus enlists a different aVOR strategy...
  14. pmc A multichannel semicircular canal neural prosthesis using electrical stimulation to restore 3-d vestibular sensation
    Charles C Della Santina
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 601 North Caroline Street, Baltimore, MD 21287, USA
    IEEE Trans Biomed Eng 54:1016-30. 2007
    ..Increasing stimulation selectivity via improvements in electrode design, surgical technique and stimulus protocol will likely be required to restore AVOR function over the full range of normal behavior...
  15. ncbi request reprint Semicircular canal function before and after surgery for superior canal dehiscence
    John P Carey
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
    Otol Neurotol 28:356-64. 2007
    ..To characterize semicircular canal function before and after surgery for superior semicircular canal dehiscence (SCD) syndrome...
  16. doi request reprint Vestibular hypofunction in the initial postoperative period after surgical treatment of superior semicircular canal dehiscence
    Yuri Agrawal
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
    Otol Neurotol 30:502-6. 2009
    ..2) Evaluate whether dehiscence length is associated with risk of postoperative vestibular hypofunction. 3) Compare the prevalences of immediate and late postoperative vestibular hypofunction...
  17. pmc Characterization of the 3D angular vestibulo-ocular reflex in C57BL6 mice
    Americo A Migliaccio
    Neuroscience Research Australia and the University of New South Wales, Sydney, Australia
    Exp Brain Res 210:489-501. 2011
    ..g., squirrel monkeys and humans) suggests that the parallel resting optic axes and/or radially symmetric retinal foveae of primates underlie their characteristically low 3D aVOR gain for roll head rotations...
  18. pmc The under-compensatory roll aVOR does not affect dynamic visual acuity
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 601 N Caroline St, Baltimore, MD, 21287 0910, USA
    J Assoc Res Otolaryngol 13:517-25. 2012
    ..For subjects with UVH, the DVA score during passive horizontal impulses is a better indicator of poor gaze stability than during passive roll or pitch...
  19. pmc The human sound-evoked vestibulo-ocular reflex and its electromyographic correlate
    Miriam S Welgampola
    Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Missenden Road, Camperdown, Sydney, NSW 2050, Australia
    Clin Neurophysiol 120:158-66. 2009
    ..We examined their relationship by measuring the modulation of both responses by gaze and stimulus parameters...
  20. pmc Dynamic visual acuity during passive head thrusts in canal planes
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 601 N Caroline St, JHOC Rm 6245, Baltimore, MD 21287 0910, USA
    J Assoc Res Otolaryngol 7:329-38. 2006
    ..051 LogMAR). These findings suggest that the htDVA test, which does not require scleral coil placement, magnetic field coils, or expensive oculography equipment, can provide a useful quantitative measure of individual SCC function...
  21. ncbi request reprint Search-coil head-thrust and caloric tests in Ménière's disease
    Hong Ju Park
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland 21287, USA
    Acta Otolaryngol 125:852-7. 2005
    ..In these subjects, the head-thrust test (HTT) may not be as sensitive to canal dysfunction as traditional caloric testing. MD may differentially affect the low-frequency sensitivity of the canals...
  22. doi request reprint The 2D modified head impulse test: a 2D technique for measuring function in all six semi-circular canals
    Americo A Migliaccio
    Neuroscience Research Australia and the University of New South Wales, Sydney, Australia
    J Vestib Res 21:227-34. 2011
    ..We conclude that 2D eye measurement techniques, such as video pupil-tracking, can be used to test all six canals...
  23. pmc Vestibulo-ocular reflex responses to a multichannel vestibular prosthesis incorporating a 3D coordinate transformation for correction of misalignment
    Gene Y Fridman
    Vestibular NeuroEngineering Laboratory, Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 720 Rutland Ave, Baltimore, MD 21205, USA
    J Assoc Res Otolaryngol 11:367-81. 2010
    ....
  24. pmc Virtual labyrinth model of vestibular afferent excitation via implanted electrodes: validation and application to design of a multichannel vestibular prosthesis
    Russell Hayden
    Johns Hopkins Vestibular NeuroEngineering Laboratory, Baltimore, MD 21287 0910, USA
    Exp Brain Res 210:623-40. 2011
    ..The modeling procedure is partially automated and can be readily adapted to other species, including humans...
  25. pmc Modification of compensatory saccades after aVOR gain recovery
    Michael C Schubert
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287 0910, USA
    J Vestib Res 16:285-91. 2006
    ..Our data suggest an inverse, dynamic relationship between the recruitment of CS and the gain of the aVOR...
  26. pmc Orientation of human semicircular canals measured by three-dimensional multiplanar CT reconstruction
    Charles C Della Santina
    Department of Otolaryngology Head and Neck Surgery, Johns Hopkins School of Medicine, 601 North Caroline Street, Rm JHOC 6253, Baltimore, MD 21287, USA
    J Assoc Res Otolaryngol 6:191-206. 2005
    ..5 +/- 5.1 degrees, and 105.6 +/- 6.6 degrees, respectively. The mean anterior SCC-contralateral posterior SCC angle was 15.3 +/- 7.2 degrees. The absolute orientations of human SCC are more nearly orthogonal than previously reported...
  27. doi request reprint Evaluation of Quantitative Head Impulse Testing Using Search Coils Versus Video-oculography in Older Individuals
    Yuri Agrawal
    Department of Otolaryngology Head and Neck Surgery, and Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, Maryland Neuroscience Research Australia and the University of New South Wales, Sydney, Australia German Center for Vertigo and Balance Disorders IFB LMU, University Hospital Munich, Campus Grosshadern and Lausitz University of Applied Sciences, Senftenberg, Germany
    Otol Neurotol 35:283-8. 2014
    ..To evaluate the validity of 2D video-oculography (VOG) compared with scleral search coils for horizontal AVOR gain estimation in older individuals...
  28. ncbi request reprint Vergence-mediated changes in Listing's plane do not occur in an eye with superior oblique palsy
    Americo A Migliaccio
    Neurology Department, Royal Prince Alfred Hospital, Sydney, Australia
    Invest Ophthalmol Vis Sci 45:3043-7. 2004
    ....
  29. ncbi request reprint Cerebellar ataxia with bilateral vestibulopathy: description of a syndrome and its characteristic clinical sign
    Americo A Migliaccio
    Neurology Department, Royal Prince Alfred Hospital, Sydney, Australia
    Brain 127:280-93. 2004
    ..1 to 1.0 Hz, eye velocity failed to match head velocity, gaze velocity increased, and gaze position errors developed, which were corrected with bursts of saccades, the basis of the clinical sign of an impaired VVOR...
  30. pmc Inexpensive system for real-time 3-dimensional video-oculography using a fluorescent marker array
    Americo A Migliaccio
    Department of Otolaryngology Head and Neck Surgery, Laboratory of Vestibular Neurophysiology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
    J Neurosci Methods 143:141-50. 2005
    ..laniger). The in vivo positional difference between the two methods was <3.1% for each component of 3-D eye position...
  31. doi request reprint Visual contribution to the high-frequency human angular vestibulo-ocular reflex
    Daniel Chim
    Neuroscience Research Australia and the University of New South Wales, Sydney, Australia
    Exp Brain Res 230:127-35. 2013
    ..This is in contrast to the low-frequency VOR that depends more on retinal velocity error and predictive adaptation mechanisms...

Research Grants1

  1. Galvanic Effects on the Human Vestibuloocular Reflex
    Americo Migliaccio; Fiscal Year: 2007
    ....