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Follow-ups from last class

Follow-ups from last class. Autoradiography: How do we know it works?. How do we know the most active neurons are lighting up? Stimulate retina with light Get activity in the right place Amount of activity correlated with intensity of light 2. Electrically stimulate sciatic nerve

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Follow-ups from last class

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  1. Follow-ups from last class

  2. Autoradiography: How do we know it works? • How do we know the most active neurons are lighting up? • Stimulate retina with light • Get activity in the right place • Amount of activity correlated with intensity of light • 2. Electrically stimulate sciatic nerve • Amount of activity in spinal cord correlates with intensity of stimulation Louis Sokoloff!

  3. Is MRI dangerous? • There is no evidence that the magnetic fields pose any health risks. • Risk of metallic objects either in body or in room. • Some concern if occupation involves metal work (welders, for instance). Esp. concern is metallic objects in eye. • Procedure is not recommended during pregnancy (but only because it hasn’t been studied sufficiently and NOT because of any known risk).

  4. Email questions: • Do we have to know the sizes of things? • Do we have to know the cranial nerves? • Do we have to know names and dates? • Generally, do we have to know things that aren’t mentioned in lectures?

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