Course Questions Pt 2 Flashcards
The __________________ consists of myelinated nerves, non-myelinated fibers and Schwann cells, which produce myelin.
A: Gray matter
B: White matter
C: Neocortex
D” Thalamus
B: White matter
In an action potential, membrane depolarization is caused by a rapid opening of _________ channels in the cellular membrane.
A: Potassium (K+)
B: Sodium (Na+)
C: Calcium (Ca²+)
D: Chloride (Cl-)
B: Sodium (Na+)
EEG activity is generated by _____________________.
A: Presynaptic potentials
B: Action potentials
C: The spatial and temporal sum of postsynaptic potentials
D: Neurotransmitters
C: The spatial and temporal sum of postsynaptic potentials
Two major forms of neurotransmission depend on two types of receptors. ____________ receptors are ligand-gated ion channels and ___________ receptors are G-protein coupled receptors.
Choose only ONE best answer.
A Metabotropic and Ionotropic
B Sodium and Potassium
C Ionotropic and Metabotropic
D All of the above
C Ionotropic and Metabotropic
What is the resting potential of the neuron?
Choose only ONE best answer.
a. 0 mV
b. 70 mV
c. -70 mV
c. -50 mV
c. -70 mV
True or false: A Coup Contre-Coup injury to the brain occurs in the region of impact and also on the opposite side of the brain where it contacts the inside of the skull.
True
Why is Coherence Analysis important in Quantitative EEG Analysis?
Choose only ONE best answer.
A. Coherence correlates highly with MRI results.
B. Coherence is the measure of the degree of similarity of EEG recordings at two scalp locations; it suggests the level of functional connectivity and communication between brain regions.
C. Hypercoherence indicates that the brain regions involved are communicating with maximum flexibility.
D. Coherence analysis is the only criterion necessary to create brain training protocols.
B. Coherence is the measure of the degree of similarity of EEG recordings at two scalp locations; it suggests the level of functional connectivity and communication between brain regions.
True or false: Mild traumatic brain injury (mTBI) is most frequently associated with open head wounds.
False
Symptoms of mild traumatic brain injury include:
Choose only ONE best answer.
A. Short-term memory loss, difficulty sleeping and inability to focus attention
B. Brain fog and fatigue
C. Emotional lability and difficulty finding words
D. All of the above
D. All of the above
True or false: The majority of patients who present in emergency rooms with mild concussions and who receive an MRI show significant anatomical findings of brain trauma.
False
True or false: LORETA maps describe functional abnormalities rather than anatomical abnormalities in the brain.
True
True or false: 1 channel 1 band EEG protocols can be performed with both the Nexus-10 and Nexus-32 amplifiers.
True
Bands refer to:
A. The number of locations on the scalp from which we record EEG
B. Frequency ranges that are used to reward or inhibit EEG activity
C. Amplitude and power
D. None of the above
B. Frequency ranges that are used to reward or inhibit EEG activity
True or false: The 1 channel 1 band clinician screen features the raw EEG in real-time as well as line graphs of filtered EEG frequencies.
True
In the operant conditioning learning paradigm:
A. The discriminant feedback trains the brain.
B. Neurofeedback can either reward or inhibit EEG phenomena.
C. The clinician has the flexibility to change the EEG frequencies that are rewarded or inhibited
D. All of the above
D. All of the above
