Collura & NFB Flashcards
Explain infra-low frequency, and slow-cortical potential 
ILS neurofeedback rewards any change in the EEG baseline,
whereas SCP neurofeedback can reward change in a specific direction
Explain DC sensors and signal
- High-quality DC centers should be made of silver chloride.
- Most practical training feedback SCPs instead of raw DC signal.
- The Rall, DC offset can help assess the quality of sensor contacts.
A brain dipole can
- Move
- Oscillate and very in time.
- Change orientation.
EEG sensors to detect dipoles
Between, near, and parallel to sensors
SCP signals, or at least partially generated by
Cortical glial cells
A DC EEG signal is converted into SCP by applying a time constant of ________ seconds
10–20 seconds
DC and SCP training typically use ________ monitoring in order to ________.
Uses monopolar monitoring in order to train up or down shifts
ILF or ISF EEG _________
Is detected using an AC – coupled amplifier
Glial cells are mainly concerned with…
Overall activation and regulation of brain function
An amplifier must be sensitive down to the ________ Hz to measure DC potentials
0.0
The qEEG typically uses sampling rates of ______ samples per second to reduce contamination by 50/60 HZ artifact
1024 samples per second
Comodulation measures
How signals oscillate together
Coherence
Is the amount of information shared by two channels
Phase
Measures whether peaks and valleys are correlated
Collura recommends high pass filter orders (5 or 6) for
Low frequency (theta & Alpha) training
FFT analysis to calculate signal frequency typically uses bins with a _______ resolution.
1HZ
How do you FFT & JTFA differ
FFT emphasizes data from the middle of the epoch
JTFA emphasizes the most recent data
Describe FFT frequency analysis
- Allows the calculation of percent energy and spectral correlation.
- Breaks the EEG signal into component bands like a prism
- Measures of frequency at once.
Advantages of 24 – bit sampling include
- 0.1-microvolt resolution.
- Excellent dynamic range.
- Sampling the DC component of the EEG.
The average alpha amplitude, or magnitude shown in an QEEG Report, reflects EEG signal
- Expression.
-  Variation
- Magnitude.
Peniston’s “deep “protocol used to treat addiction monitors _______, and trains _______.
Monitors PZ, and
Trains Alpha and Theta up
A z – score measures
The number of standard deviations of value is from the mean
Multiple inhibit Protocols
Stabilize brain function
In live Z – score training, the target value in standard deviation depends on
- Age
- Site location
- Eyes condition or task condition.
A z-score is calculated as
Measurements - mean / standard deviation
A “relax” protocol monitors _______ and trains ________.
Monitors OZ
Trains up Alpha
Trains down Theta & HB
When clients exhibit EEG abnormalities, live z- score training can
Normalize the qEEG and improve clinical symptoms
A z-score of +/- 1 standard deviation covers the middle ______ of the population
68%
A “squash” protocol might reinforce
Decreased Theta amplitude
A “focus” protocol monitors ______ and trains ________.
Monitors C3 or C4
Trains SMR up
Trains down Theta & HB
The “alert “protocol used to treat ADHD monitors _______ and trains ______.
Monitor C3 or C4
Trains up Beta
Trains down Theta & HB
Sometimes a clients training goal in regards to Z scores
Sometimes a training goal is to move away from the Z score mean 0
