Roxana Contreras

Roxana defended her doctoral dissertation in May 2009.

In addition to computational models of neural synchrony, her research included a study of eye- target synchrony and attention in mild traumatic brain injured patients during smooth pursuit of a moving visual target. Mild traumatic brain injury (TBI) can lead to chronic attentional deficits which, due to the current lack of reliable diagnostic tests, might remain undetected. The evidence suggests that smooth pursuit eye movement (SPEM) is modulated by attentional processes. To test this, subjects track a target while loaded with tasks involving working memory. Roxana used stochastic phase synchronization methods in order to determine the synchronization between the time series of eye and target position.