Transcranial Magnetic Stimulation Investigation of the Frontoparietal Attention Network



Shelp, Adam K

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Dynamic Attending Theory (DAT) suggests that, due to its exorbitant energy requirements, attention regularly oscillates such that an individual experiences high and low energetic states during sustained attending that lead to high and low mental presences, respectively. Attention research is largely focused on endogenous temporal orienting, however, so little is known about the neural mechanisms underlying exogenous orienting as specified by DAT. We used TBS to inhibit the right ventral intraparietal sulcus and right anterior temporoparietal junction during a dynamic attending task to directly observe their roles in attentional entrainment. We found a significant effect of Foreperiod, but likely due to low sample size, we found no significance of IOI, the interaction between the two, or stimulation site. These findings warrant additional research, to determine how inhibition compares to a control site and to increase power in the hopes of replicating the results of Sanabria, Capizzi, and Correa (2011).



Attention, Dynamic Attending Theory, Frontoparietal attention network, Transcranial magnetic stimulation, Right anterior temporoparietal junction, Right ventral intraparietal sulcus