Leanne is interested in learning why people choose to look where they do. As humans, we each choose where to look 3-5 times every second. Each of these choices entails an evaluation of the visual scene, decision to shift attention to an area of interest, plan to move the eye the appropriate amount and direction, and finally the execution of the a fast orienting eye movement, called a saccade.
Since these fast eye movements are the culmination of so much processing, we use them as a sensitive, non-invasive measure of attention and motor planning. We measure saccades in individuals at a range of ages, in both typical and atypical neurodevelopment. In addition to measuring eye movements, we also seek to manipulate them. The tight link between spatial attention and eye movement suggests that improved accuracy and timing of eye movements—a motor behavior that can be trained—will also lead to improved attentional skill.
1. Chukoskie, L., Townsend, J., and Westerfield, M. (in press) Motor skill in Autism Spectrum Disorder: a subcortical view. International Reviews in Neurobiology: Neurobiology of Autism. Genevive Konopka, editor (invited book chapter).
2. Chukoskie, L., Soomro, A., Townsend, J., and Westerfield, M., (2013) 'Looking' better: designing an at-home gaze training system for children with ASD. Proceedings of the 5th International IEEE EMBS Conference on Neural Engineering, San Diego CA.
3. Chukoskie L., Snider, J. Mozer, M., Krauzlis, RJ, Sejnowski, T. (2013) Learning Where to Look for a Hidden Target. PNAS ; 110 Suppl 2:10438-45.
4. Chukoskie, L., Miller, M.J., Kanan, C., Dorai, M., Townsend, J., and Trauner, D.A. (2012) Did you see that change? A study of dyspraxia, eye movement and visual perception in autism. International Meeting for Autism Research. 11268.
5. Kamen BA and Chukoskie L. (2011) Autism Speaks: Meeting on Folate Metabolism and Autism Spectrum Disorders: March 19-20, 2009, Washington, DC. Journal of Pediatric Hematology/Oncology. 33(3): 308-315.
6. Chukoskie L, Alexander AS, Kane,NR, Mozer MC, Sejnowski TJ, Chiba AA. (2010) Rodents effectively learn statistics of hidden food rewards in a novel search task. Soc. Neurosci. Abstr. 36: 813.6.
7. Chukoskie L and Movshon JA. (2009) Modulation of visual signals in macaque MT and MST neurons during pursuit eye movement. J. Neurophysiology. 102(6); 3225-33.
8. Krauzlis RJ and Chukoskie L (2007) Oculomotor control: target selection for pursuit and saccades. Chapter 1104 in The New Encyclopedia of Neuroscience