Deborah E. Giaschi

Department of Ophthalmology and Visual Sciences
Associate Member in the Department of Psychology

Phone: 604 875-2345 (ext 7853)

Web pages: Lab webpage



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)


  • Dyslexia
  • Amblyopia
  • fMRI

Research Interests

Dyslexia and Genetics

To determine if individuals with poor temporal processing abilities show genetic susceptibility to dyslexia.

Dyslexia and fMRI

To determine, using functional magnetic resonance imaging (fMRI), if overlapping cortical networks for reading and temporal processing are compromised in individuals with dyslexia.

Stereopsis in Amblyopic Eyes

To evaluate the ability of children with amblyopia to process different kinds of stereoscopic information.

Motion Perception in Amblyopia

To use behavioural and functional magnetic imaging (fMRI) techniques to examine motion processing in the amblyopic and fellow eyes of children diagnosed with strabismic, anisometropic, or combined amblyopia.

Other projects



Motion Perception

Selected Publications

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.

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.

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

Boden C, Giaschi D (2009) The role of low-spatial frequencies in lexical decision and masked priming.Brain and Cognition69, 580-91.

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

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.

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.

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

Ho C, Paul P, Asirvatham A, Cavanagh P, Cline R, Giaschi D.(2006). Abnormal spatial selection and tracking in children with amblyopia. Vision Research, 463274-3278.

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



Courses taught:

Psych 367

Psych 368