PSYB51H3 Chapter Notes - Chapter 1: Magnetic Resonance Imaging, Functional Magnetic Resonance Imaging, Vitalism
Document Summary
Doctrine of specific nerve energies: the central idea of this doctrine is that we only are only aware of our own nerves, and not of the outside word. When we close our eyes, and rub our eyes, we can still see light. It doesnt matter how are nerves are stimulated, it matters which ones are stimulated: oculomotor/trochlear/abducens are nerves dedicated to the eyes. Muller: vitalism, doctrine of specific nerve energies. Santiago cajal: discovered that there were gaps in between neuron cells. Very expensive, therefore less common than eeg. Maintains a good measure of timing of populations of neurons while providing a better idea where brain neurons are most active beam of light is shot at head denser tissue absorbs more light. Magnetic resonance imaging: measure the signal, which can indicate which elements are in the brain if you ask about hydrogen, it can tell you where the water rich fluid is inside your head.
