Assignment 1

Submission via

ADC

DAC

Assignment 1

Submission via

Electroencephalogram

EEG

MEG

Magnetoencephalography

EEG records electrical activity in the brain

non-invasive!

electricity always comes with a magnetic field (MEG)

Hans Berger in 1929

measured electricity when daughter did math

more activity during complicated math

gray matter

white matter

~100 billion neurons

EEG measures activity in the cerebral cortex

but it's really activity from layers below the cortex

seizure disorders, tumors, head injuries, degenerative diseases, and brain death

research on brain function and activity

Limitation: EEG can not reveal from which brain structure the activity comes from

fMRI

10-20 System to place EEG electrodes

25 - 256 electrodes

Brain Waves

Research and Diagnostics:

 

evoked potentials

auditory

 

visually

 

somatosensory

CS480 Lecture 10

By Daniel Haehn

CS480 Lecture 10

Slides for CS80 Biomedical Signal and Image Processing at UMass Boston. See https://cs480.org!

  • 171

More from Daniel Haehn