Abstract
Cognitive theories on consciousness propose a strong link between consciousness and working memory (WM). This link is also present at the neural level: Both consciousness and WM have been implicated in a prefrontal parietal network. However, the link remains empirically unexplored. The present study investigates the relation between consciousness and WM by studying the impact of WM load on one aspect of consciousness, the threshold for subjective visibility. At the same time, we investigated how WM affects cognitive control, a function that has been implicated to consciousness. Results showed an increase in the threshold of subjective visibility when WM load increased. Furthermore, the impact of a prime stimulus on the response to the target was also modulated by WM load. We propose that the observed interference is caused by the functional and neural overlap of these functions.
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