University of Twente Student Theses


Internal and external spatial attention re-examined with lateralized power spectra

Jahangier, I.A. (2023) Internal and external spatial attention re-examined with lateralized power spectra.

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Abstract:Attention can be oriented internally towards the mind (internal attention) or externally towards the environment (external attention). Strong evidence suggests that both internal and external attention share their underlying mechanisms. However, this view is still being questioned. The methodology seems to play an important part in this issue. This is visible in the research by Van der Lubbe et al. (2014) and the replication of this study by Willems (2020). Both studied the relationship between these processes, but found vastly different results. We propose that this variation in results was caused by the experimental design. In this study, we aimed to conceptually replicate these studies. The cueing paradigm used in this study consisted of two conditions; a pre-cue and a post-cue condition. Behavioural results revealed a Simon effect across both conditions for reaction time and accuracy. The EEG analysis revealed an increased ipsilateral power in the alpha band at parieto-occipital sites during both conditions. These findings support the view that internal and external spatial attention share underlying mechanisms. The design has also led to more pronounced behavioural and EEG results compared to the studies it tried to replicate, indicating that the modifications have improved the robustness of this experimental design.
Item Type:Essay (Master)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology MSc (66604)
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