Research

Interests

  • Neuroimaging (functional Magnetic Resonance Imaging, fMRI; Diffusion Tensor Imaging, DTI)
  • Mental chronometry and modelling (reaction time, response duration, accuracy)
  • Connecting the former to the latter (i.e., the brain to the mind) in language, semantic, attention, memory and object processing networks
  • Ventral and dorsal visual processing streams
  • Embodied cognition (sensorimotor-semantic processing involved in language)
  • Reading systems
  • Localization of these networks in pre-neurosurgical planning
The first set of images are fMRI unique activation maps from a study where participants verbally identified 'what' is, 'where' is, or 'how' do you interact with, a picture or word stimulus (see Borowsky et al., 2005, Brain Topography). Active regions are those unique to Word (blue) or Picture (orange) stimuli, after all shared (conjunction) activation has been removed. The anatomical underlays have 10% of the cortical surface removed to facilitate the localization of function.
"What" Pictures - Words
"Where" Pictures - Words
"How" Pictures - Words

Below is a video of a Diffusion Tensor Imaging (DTI) map showing white matter tracts (glial cells and myelinated axons) that transmit signals between brain regions. Our lab uses both fMRI and DTI techniques in basic research and neurosurgical assessment "from bench to bedside and back again".