| RESEARCH INTERESTS | |||||||||
| My research interests stem from a desire to understand brain-behaviour interactions. The methods used are primarily human psychophysics; the underlying assumptions and proposals are derived with neuroscientific principles in mind. The projects outlined below explore a broad range of topics spanning the processing continuum from the early visual perception to later memory. Four main themes can be extracted from the different programs of research which I have been involved in.
The first is an interest and desire to understand the control, consequences, and varieties of attention. My publications on prior entry, change blindness, the attentional blink and negative priming all relate to this goal in some way-either defining what can be done without attention, or emphasizing the necessity for selecting only a few of the infinite number of objects in our visual world. My recent work on the role of memory in visual search addresses how experience aids in the control of attention. The second theme, image inversion, addresses how perturbations of the visual scene effect both perceptual memory (on the order of milliseconds) and long term memory (learning the names of novel faces for later recall). Inversion is an excellent manipulation to study the workings of the memory system because all of the low-level features are maintained while the overall meaning can be severely disrupted. The third theme focuses on temporal processing both within specific modalities (vision, touch, or audition) or across any two of these. The literature on this topic spans over two centuries, and yet we are only now beginning to unravel some of the more difficult questions. My projects on auditory saltation and temporal order judgements are germane to this theme. Finally, I am doing research using neuro-imaging techniques (ERP, and fMRI) and patient populations to elucidate the underlying brain mechanisms for many of the different aspects of perception and cognition outlined below. This last facet of my research program has begun in earnest only over the past six months but has gathered momentum and I anticipate continuing work in this direction. |
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| RECENT PROJECTS |
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 Virtual Hebb-Williams MazeA virtual environment was developed to test humans in this classic set of rodent mazes. (Shore, Stanford, MacInnes, Brown & Klein, 2001)
RESEARCH ARCHIVES  |
Exploring Auditory Saltation in Acollosal Patients The role of the corpus callosum in the Saltation illusion was assessed
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Assessing Temporal Processing Using fMRI and ERP This project pushes some new analysis methods in fMRI to their temporal limit in looking for the brain area responsible for prior entry.
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research