Brain Stimulation & Psychosurgery
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Transcript of Brain Stimulation & Psychosurgery
Brain Stimulation & Psychosurgery
Electroconvulsive therapy1938 – 100volts, awakeToday – Anesthesia mmm
and muscle relaxerHow does it work?
Brain StimulationElectroconvulsive Therapy
Brain StimulationElectroconvulsive Therapy
80% success rate for treatment of severe depressionMemory loss (possible)
http://www.youtube.com/watch?v=5Ct90t_iF6Q 2:00min – 8:00min (6:00min)
http://www.youtube.com/watch?v=y8K37POBojs (2:55min total)
Magnetic StimulationRepetitive transcranial magnetic
stimulations (rTMS)
Brain StimulationAlternative Neurostimulation Therapies
AwakeMagnetic field only penetrates to the
brain’s surfaceStimulate or dampen particular areas of brainLeft frontal lobe = depressed patients
No seizures, no memory loss
Brain StimulationAlternative Neurostimulation Therapies
PsychosurgeryRemove or destroy brain tissue
LobotomyCutting main neurons to the frontal lobe= mental vegetable“Discovered” 1930s – performed widely until 1950s when
antipsychotics were introducedhttp://www.youtube.com/watch?v=_0aNILW6ILk (5:11min total)
Psychosurgery