High-Density Diffuse Optical Tomography (HD-DOT) is an emerging modality that uses a dense array of overlapping measurements that provides image quality validated against fMRI. Here, we doubled the optode density of our previously reported HD-DOT system, expanded the field of view and achieve higher resolution and image quality. Task-based and movie viewing activation maps reveal strong contrast to noise of cortical function across these tasks. Additionally, we show the expanded field of view covers functional networks not available with our previously reported HD-DOT system. This system is promising for future studies using resting state functional connectivity, decoding, and naturalistic paradigms.
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