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Monday Seminars

CMB Monday Seminar - Mariam Aly

"The contributions of recollection and familiarity to immediate and long-term change detection"

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CMB Monday Seminar - Chris Blais, University of California, Berkeley

"Neural evidence for item-specific performance monitoring and the role of strategy in proportion congruency effects."

CMB Monday Seminar - Chris Blais, University of California, Berkeley - Read More…

CMB Monday Seminar (Methods)- Rene Scheeringa

Electrophysiological correlates of the human BOLD signal Simultaneous recording of hemodynamic and electrophysiological signals in monkeys and cats suggest that the hemodynamic effects observed with fMRI are a reflection are more tightly coupled to changes in local field potential activity than to spike rate changes. Especially gamma band activity was found to be tightly related to hemodynamic changes. The question arises whether these observations in animals also translate to the BOLD signal in humans during performance of cognitive tasks. In the work presented here we used simultaneous recorded EEG and fMRI to investigate how task related EEG power changes in different frequency bands (theta, alpha, beta and gamma power) relate to the changes in the BOLD signal.

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CMB Monday Seminar (Attention)- Risa Sawaki

Cognitive Mechanisms Underlying Modulation of Distractor Processing by Spatial Attention Salient distractors often capture our attention, even when they are irrelevant to ongoing activity. The findings of previous studies have led to diametrically opposed interpretations with respect to the nature of attentional capture. One suggests that attentional capture is a stimulus-driven, bottom-up phenomenon that is determined exclusively by the saliency of visual objects, whereas the other implies that top-down attentional set plays an important role in the control of attentional capture. We are investigating whether spatial attention is strongly associated with the bottom-up and top-down mechanisms of attentional capture. I will talk about the current experiment examining how target-similar and salient distractors are processed inside and outside attended zones of visual space.

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