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Unformatted text preview: tive ion channels Insert fibre-optic light to brain area, expose ion channels
to particular wavelengths Change membrane potential only in the desired
population of neurons Transcranial Magnetic Stimulation
Changing electrical potential of cerebral cortex through
application of a strong magnetic field Works by induction Magnetic coil allows relatively localized application of a
field strong enough to induce electrical current in neurons Similar effects to direct electrical stimulation of cortex,
but does not require surgery Neurochemical Methods
Finding Neurons that Produce
• Peptides (or proteins)
– Can be localized directly using
immunocytochemical methods Let’s take a closer look on the next
slide. Localization of a Peptide Neurochemi...
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- Winter '14