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The process of seeing is deceptively effortless: we open our eyes and it feels as if we have immediate conscious access to everything in our visual world. In fact, however, our visual environment is so richly complex that without a selective mechanism to guide and limit processing, our system would be overwhelmed. Focused visual attention serves this critical selective function and allows us to efficiently perceive and interact with the world. Visual attention is highly flexible and dynamic and in the VCA Lab we are interested in examining key aspects of the spatial and temporal dynamics of attention.
Selected Research on the Spatiotemporal Dynamics of Attention:
Jefferies, L. N., Enns, J. T., & Di Lollo, V. (2019). The exogenous and endogenous control of attentional focusing. Psychological
Research, 83, 989-1006. https://link.springer.com/article/10.1007/s00426-017-0918-y
Jefferies, L. N., & Di Lollo, V. (2017). Deployment of spatial attention to a structural framework: exogenous (alerting) and
endogenous (goal-directed) factors. Attention, Perception, & Psychophysics, 79, 1933-1944.
https://link.springer.com/article/10.3758/s13414-017-1378-6
Jefferies, L.N. & Di Lollo, V. (2015). When can attention be deployed in the form of an annulus? Attention, Perception, &
Psychophysics, 77, 413-422. https://link.springer.com/article/10.3758/s13414-014-0790-4
Jefferies, L. N., Roggeveen, A. B., Enns, J. T., Bennett, P. J., Sekuler, A. B., & Di Lollo, V. (2015). On the time course of
attentional focusing in older adults. Psychological Research, 79, 28-41. https://link.springer.com/article/10.1007/s00426- 013-0528-2
Jefferies, L.N., Gmeindl, L., & Yantis, S. (2014). Attentional focusing is triggered by illusory differences in the size of physically
identical objects. Attention, Perception, & Psychophysics, 76, 1393-1402.
https://link.springer.com/article/10.3758/s13414-014-0666-7
Jefferies, L.N., & Di Lollo, V. (2009). Linear Changes in the Spatial Extent of the Focus of Attention Across Time. Journal of
Experimental Psychology: Human Perception and Performance, 35, 1020-1031.
Wright, R.D., & Jefferies, L.N. (2009). Inhibition of Return is Cognitively Penetrable. In Trick, L.M., (Ed.), Computation,
Cognition, and Pylyshyn. MIT Press.
Ghorashi, S., Jefferies, L.N, Kawahara, J-i., & Watanabe, K. (2008). Does attention accompany the conscious awareness of
both location and identity of an object? Psyche, 14, 1-13.
Jefferies, L.N., Ghorashi, S., Kawahara, J-i., & Di Lollo, V. (2007). Ignorance is Bliss: The role of observer expectation in
dynamic spatial tuning of the attentional focus. Perception & Psychophysics, 69, 1162-1174.
Jefferies, L.N., Wright, R.D., & Di Lollo, V. (2005). Inhibition of return to an occluded object depends on expectation. Journal of
Experimental Psychology: Human Perception & Performance, 31, 1224-1233.
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