term1 Definition1term2 Definition2term3 Definition3
Please sign in to your Google account to access your documents:
What is a technique for studying the ensemble properties of the cortex that recrod activity of many cortical areas simultaneously?
Electroencephalogram (EEG)
What is an electrocorticogram?
ECoG
Macroelectrodes that record summated acitivty when the cortical surface is exposed during surgery
What is an EEG?
A measure of the extracellular current flow associated with the summed activity of many individual neurons
Measures postsynaptic potentials rather than action potentials
What electrodes are needed for EEG?
Active electrode: placed over site of neuronal activity
Indifferent electrode: placed at some distance from the active electrode
In what domains are EEGs analyzed?
Temporal (frequency) and spatial
What are the dominant frequency bands in EEGs?
Alpha, beta, delta, and theta
Describe alpha waves.
Relaxed wakefulness
Parietal and occipital
Describe beta waves.
Frontal regions
Intense mental activity
Smallest amplitude
Describe delta and theta waves.
Associated with sleep
Largest amplitudes
What is optical imaging?
High-resolution spatial record of activity in population using voltage-sensitive dyes
Some neurons emit signals based on their intrinsic fluorescence
Invasive
Need help typing ? See our FAQ (opens in new window)
Please sign in to create this set. We'll bring you back here when you are done.
Discard Changes Sign in
Please sign in to add to folders.
Sign in
Don't have an account? Sign Up »
You have created 2 folders. Please upgrade to Cram Premium to create hundreds of folders!