True or False: Stimulation of brain regions is accompanied by increased oxygen delivery and increased oxygen consumption at the active region

false

What does the BOLD effect stand for?

blood oxygen level dependent signal

blood oxygen level dependent

True or False: The BOLD signal reflects changes in the ratio of oxyhemoglobin to deoxyhemoglobin

true

True or false: Oxyhemoglobin is paramagnetic

false

Neurovascular coupling describes the phenomenom where capillaries ____ (contract or dilate) when neurons neraby are activated

dilate

Is the fMRI BOLD signal sensitive to changes in HbO (Oxyhemoglobin) or HbR (Deoxyhemoglobin)?

HbR