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Transient Attentional Enhancement during the Attentional Blink: ERP correlates of the ST2 model

By Srivas Chennu, Patrick Craston, Brad Wyble and Howard Bowman


There has been considerable recent interest in the identification of neural correlates of the Attentional Blink (AB), and the development of neurally explicit computational models. A prominent example is the Simultaneous Type Serial Token (ST2) model, which suggests that when the visual system detects a task-relevant item, a spatially specific Transient Attentional Enhancement (TAE), called the blaster, is triggered. This paper reports on our investigations into EEG activity during the AB, and a hypothesized correlation between the blaster and the N2pc ERP component. Specifically, we demonstrate that the temporal firing pattern of the blaster in the model matches the N2pc component in human ERP recordings, for targets that are seen and missed inside and outside the attentional blink window. Such a correlation between a computational account of the AB and ERP data provides useful insights into the processes underlying selectivity in temporal attention

Topics: QA76
Publisher: World Scientific
Year: 2008
OAI identifier: oai:kar.kent.ac.uk:23962

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