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Debbie Giaschi
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Dyslexia
Amblyopia
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fMRI
Motion Perception
 
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Visual Neuroscience Lab

Deborah E. Giaschi Ph.D.

Positions:
Professor in the Department of Ophthalmology and Visual Sciences
Associate Member in the Department of Psychology, University of British Columbia
Staff Scientist at B.C. Children's Hospital
Scientist level 2 at the Child and Family Research Institute
 
Education:
B.Sc. in Psychology/Zoology from the University of Toronto (1983)
M.A. in Experimental Psychology from York University (1985)
Ph.D. in Experimental Psychology from York University (1989)
 
Recent Talks:
  1. Fine and course stereopsis. Canadian Amblyopia Network meeting, McMaster University, July 2008.

  2. The typical and atypical maturation of coarse stereopsis. The Canadian Orthoptic Society Annual Meeting. Whistler BC, June 2008.

  3. Beyond 20/20 vision. Centre for Community Child Health Research Day, April 2008.

  4. Amblyopia: new findings on the most common developmental visual disorder. Human Early Learning Partnership Research Days, May 2007.

  5. Studies of motion-sensitive visual cortex using fMRI and DTI. MRI Research Centre Retreat, UBC, April 2007.

  6. Deficiencies of higher-order motion perception in children with amblyopia. European Conference on Visual Perception, St. Petersburg, Russian Federation, August 2006.

  7. Determining the neural basis of amblyopia. TGIF series, Centre for Molecular Medicine and Therapeutics, UBC, January 2006.

  8. Mapping the amblyopic brain using functional MRI. The Canadian Orthoptic Society Annual Meeting, Edmonton, June 2005.

  9. Does the brain work differently in dyslexia? Clues from functional MRI. International Dyslexia Association, Vancouver, October 2003. (with B. Bjornson)

  10. Retinotopic mapping of human visual cortex using fMRI. Pediatric Ophthalmology, Adult Strabismus, Vancouver, September 2003.
 
Selected Refereed Publications
(a) Journals
  1. Ho C, Giaschi D (2009) Low- and high-level motion perception deficits in anisometropic and strabismic amblyopia: evidence from fMRI. Vision Research, 49, 2891-901.

  2. Lanyon L, Giaschi D, Au Young S, Fitzpatrick K, Diao L, Bjornson B, Barton J (2009) Combined functional MRI & diffusion tensor imaging analysis of visual motion pathways. Journal of Neuro-Ophthalmology, 29, 96-103.

  3. Ho C, Giaschi D (2009) Low- and high-level first-order random-dot kinematograms: evidence from fMRI. Vision Research, 49, 1814-24.

  4. Boden C, Giaschi D (2009) The role of low-spatial frequencies in lexical decision and masked priming. Brain and Cognition, 69, 580-91.

  5. Iaria G, Lanyon L, Fox C, Giaschi D, Barton J (2008) Navigational skills correlate with hippocampal fractional anisotropy in humans. Hippocampus, 18, 335-9.

  6. Wang J, Ho C, Giaschi D. (2007). Deficient motion-defined and texture-defined figure-ground segregation in amblyopic children. Journal of Pediatric Ophthalmology and Strabismus, 44, 363-371.

  7. Giaschi D, Zwicker, A., Au Young, S., Bjornson, B. (2007) The role of cortical area V5/MT+ in speed-tuned directional anisometropies in global motion perception. Vision Research, 47, 887-898.

  8. Boden, C & Giaschi D (2007) M-stream deficits and reading-related visual processes in developmental dyslexia. Psychological Bulletin, 133, 346-366.

  9. Ho C, Paul P, Asirvatham A, Cavanagh P, Cline R, Giaschi D.(2006). Abnormal spatial selection and tracking in children with amblyopia. Vision Research, 46, 3274-3278.

  10. Ho, C & Giaschi D (2006) Deficient maximum motion displacement in amblyopia. Vision Research, 46, 4595-4603.

  11. Zwicker A, Hoag R, Edwards V, Boden C, Giaschi D (2006) The effects of optical blur on motion and texture perception. Optometry and Vision Science, 83, 382-390.

  12. Edwards V, Giaschi D, Low P, Edgell D (2005) Sensory and non-sensory influences on children’s performance of dichotic pitch perception tasks. Journal of the Acoustical Society of America, 117, 3157-3164.

  13. Ho C, Giaschi D, Boden C, Dougherty R, Cline R, Lyons C. (2005) Deficient motion perception in the fellow eye of amblyopic children. Vision Research, 45, 1615-1627.

  14. Parrish E, Giaschi D, Boden C, Dougherty D (2005) The maturation of form and motion perception in school age children. Vision Research, 45, 827-837.

  15. Chapman C, Hoag R, Giaschi D (2004) The effect of disrupting the human magnocellular pathway on global motion perception. Vision Research, 44, 2551-2557.

  16. Visser T, Boden C, Giaschi D (2004) Children with dyslexia: evidence for visual attention deficits in perception of rapid sequences of objects. Vision Research, 44, 2521-2535.

  17. Tata M, Giaschi D (2004) Warning: Attending to a mask may be hazardous to your perception. Psychonomic Bulletin & Review, 11, 262-268.

  18. Edwards V, Giaschi D, Dougherty R, Edgell D, Bjornson B, Lyons C, Douglas R (2004) Psychophysical indices of temporal processing abnormalities in children with dyslexia. Developmental Neuropsychology, 25, 321-354.

  19. Giaschi D, Jan J, Bjornson B, Au Young S, Tata M, Good W, Lyons C, Wong P (2003) Conscious visual abilities in a patient with early bilateral occipital damage. Developmental Medicine & Child Neurology, 45, 772-781.
 
(b) Conference Proceedings
  1. Secen J, Culham J, Giaschi D (2009) The cortical basis of attentive tracking deficits in amblyopia: An fMRI study. Program No. 558.2. Neuroscience Meeting Planner. Chicago, IL: Society for Neuroscience, 2009. Online.

  2. Partanen M, Edgell D, Bjornson B, Giaschi D. (2009). Overlapping cortical systems for reading and temporal processing: Abstracts of the 2009 CSBBCS meeting. Canadian Journal of Experimental Psychology 63(4):339-49.

  3. Giaschi D, Cheema R, Ho C, Vanderbyl B, Kim D, Yau A, Secen J (2009) The effect of speed on the typical and atypical development of motion-defined form perception. Journal of Vision 9(8):648a.

  4. Scheel M, Lanyon L, Giaschi D, Barton J (2009) The organization of inter-hemispheric projections from areas 17 and 18 in the human splenium, studied with DTI probabilistic fiber tracking. Journal of Vision 9(8):772a.

  5. Pollock N, Lanyon L, Giaschi G, Bjornson B, Barton J (2008) A combined fMRI and DTI study of projections between V5 and thalamus: a potential substrate fo blindsight. Canadian Ophthalmology Society Meeting.

  6. Giaschi D, Mackenzie K, Boden C, Solski A, Wilcox L. (2008) The development of coarse stereopsis in school aged children. Journal of Vision 8(6):99a.

  7. Lanyon L, Au Young S, Fitzpatrick K, Diao L, Pollock N, Bjornson B, Giaschi D, Barton J (2007) A combined functional MRI (fMRI) and diffusion tensor imaging (DTI) analysis of extrastriate cerebral motion pathways. Society for Neuroscience Abstracts 33:616.15.

  8. Giaschi D, Boden C, Shahbazi L, Edgell D, Bjornson D, Field L (2007) Visual and auditory temporal processing in families with dyslexia. Canadian Language and Literacy Research Network Conference.
Book Chapters
Giaschi D (2006) The processing of motion-defined form. In: Harris L and Jenkin M(eds) Seeing Spatial Form. Oxford University Press, New York, pp. 101-119.
 
Email address: giaschi@interchange.ubc.ca
Phone: 604-875-2345 (ext 7807)
Fax: 604-875-2683
Snail Mail: Department of Ophthalmology (Room A146),
4480 Oak Street, Vancouver, B.C., V6H 3V4 CANADA


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