Conclusion
In conclusion, many neural mechanisms are involved in shifts of attention. While the type of attentional shift corresponds to different brain areas being activated, there is a lot of overlap seen. Additionally, even if the same neural areas are being utilized, one should question whether the same processes are being engaged within the same region or there is a difference in amount of activation. Properties of attention resources used depend on whether it is endogenously or exogenously directed or whether attention occurs as a spotlight or gradient, affect attentional shift as well as switching costs that may be experienced. Attentional shift occurs across modalities and depends on all of these properties to divide attention in order to most efficiently process information.
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