3 & 4 Flashcards
What region of the cortex provides executive functions?
frontal
The function of the parietal cortex could be described as _________________.
connect the dots
What region of the brain is associated with auditory processing?
temporal lobe
What limbic structure is associated with fear?
amygdala
What brain structure is associated with the conscious explicit memory?
hippocampus
Action potentials do _______________.
NOT generate brainwaves
A neurotransmitter associated with arousal is a(n) ________________?
norepinephrine
The neuromodulator most associated with memory and learning is _________.
acetylcholine
What neurochemical manufactured in the pituitary gland mediates sleep onset?
melatonin
Neurons grow connections between each other known as:
A) synapse
B) axon
C) dendrite
D) all of the above
The gap between neurons is called the?
synapse
The __________ mediates much of emotional activity.
limbic system
The __________ mediates motor function.
basal ganglia
The ____________ receives signals from the axon.
dendrite
What is the function of the white matter of the brain?
connects neurons
The brain is traditionally divided into areas according to cell structure known as __________ areas.
Brodmann
What structure connects the left side of the brain to the right side?
corpus collosum
The right side of the brain is connected to the:
left visual field
The neurons of the cortex appear to group themselves into?
A) cell columns
B) networks
C) regions
D) all of the above
What region of the left hemisphere is associated with speech?
Wernicke’s region
Long groups of axons in the brain combining to make neural pathways are known as_________.
fasciculate
There are _________ layers of the cortex.
6
The long and short fibers that interconnect the cortex are known as __________.
cortico-cortico fibers
The fasciculus which connects the anterior temporal lobes to the frontal lobes are known as ________________.
the uncinate fasciculus
The firing of electrical impulses down the axon of a neuron is referred to as the?
action potential
What part of the brain is most associated with arousal level?
reticular formation
What type of cell is most responsible for pre and post synaptic potential activity?
pyramidal cells
When a neuron is being encouraged to fire by other neurons it is becoming ___________.
depolarized
The thalamus is often referred to as the __________ of the brain.
A) great relay station
B) pacemaker
both A and B*
The region of the brain associated with SMR is the _______________.
sensory-motor strip
The areas C3, Cz, and C4 are positioned over the:
sensory motor strip
The area Fz is over the _____.
anterior cingulate
The area T3 and T4 are over the:
medial temporal lobes
The area of Fp1 and Fp2 correspond to the _____ area.
prefrontal executive
Delta and theta are considered _________ waves.
global
High beta waves, over 35 Hz , are considered _______ waves emanating from cell columns just below the scalp.
local
According to Thatcher, ________ activities are more related to personality functions.
global
________ activities are related more to cognitive processing.
local
Delta activity is often associated with coupling between the cortex and ______.
the brain stem
Theta activity is often associated with coupling between the cortex and the _______.
limbic system
Alpha activity is often associated with coupling between the cortex and the _____ .
thalamus
Beta activity is often associated with coupling between the ________ .
cortical columns
Coherence is the percentage of time that oscillators co-vary in ________.
phase
High beta coherence would indicate high levels of _______ .
Hypocoupling
Nunez suggest that EEG leads pick up _____________ .
a combination of frequencies from all over the brain
Waves that combine to form a static pattern are known as ________ .
standing waves
Changes occurring in the overall polarization of fields of cortical dendrites below .5 Hz in frequency are known as ___________ .
slow cortical potentials
By repeatedly presenting a stimulus and recording the response and then averaging the electrical activity of each response so that the signal can be clearly isolated we are measuring ___________.
an event related potentials
The __________ wave indicates signal detection in the brain.
P200
The _______ wave indicates comprehension of a stimulus event.
P300
In P300 studies a series of auditory tones of constant frequency may be presented that are randomly interspersed with tones of a different frequency and a subject is asked to count the irregular or __________ .
oddball tones
Lubar found that children with ADHD often had __________ .
a diminished P300 response
