Question

Researchers can now see actual thought processes by measuring,

O neuron exchanges in the brain
O spikes in the brain's electrical currents
O increases in blood flow and oxygen to different parts of the brain
O past and present research on the brain

Answer 1

Researchers can now see actual thought processes by measuring increases in blood flow and oxygen to different parts of the brain.

Step-by-step explanation:

Researchers can now see actual thought processes by measuring increases in blood flow and oxygen to different parts of the brain.

The development of functional MRI (fMRI) has allowed us to map the functioning of various regions in the brain responsible for thought and motor control. fMRI measures the change in blood flow in the brain and can generate a map of the most active areas. This technique is different from standard MRI because it measures changes in the tissue over time with an experimental condition or event.