Evaluating the Attention Devoted to Memory Storage Using Simultaneous Measurement of the Brain Activity and Eye Movements

Our study indicates that combined measures of brain activity and eye movement are useful parameters for quantifying the attention devoted to memory storage. We measured eye movements with an Eye Tracker and prefrontal cortex activity using a wearable Optical Topography in 18 participants performing a visual working memory task. We used these measures to calculate a combined index of brain activity and eye movement, which revealed that increased brain activity and higher fixation counts were related to improved task performance.