Measurement of blood oxygen level dependent hemodynamic response function (BOLD HRF) can be used to evaluate neurovascular coupling and understand underlying physiology (e.g. oxygen uptake and blood flow). However, there is dearth of understanding subcortical neurovascular coupling, which is critical for brain health. Here, we characterize human subcortical HRFs at both 3T and 9.4T and compare them with HRFs in visual cortex.
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