Language in the Brain

In most brain regions, around 10% of neurons are responsible for generating around 50% of the spikes.

True

We only use around 10% of our brains capacity

False

Which of the following is NOT an example of brain stain

Hoffman Stain

Our brain contains approximately 100 billion neurons

False

According to the Greek philosopher Aristotle, the brain was a …

body cooler

Neurons communicate more efficiently than secretory cells because they have

axons

The resting membrane potential is around 70 mV

False it is -70mV

Which channel does open when a neuron is depolarized

Sodium

Which of the following neurotransmitters is more strongly associated with motivation

dopamine

Reuptake inhibitors enhance the amount of neurotransmitters at the synaptic cleft

True

What does myelin contribute to

Increases the speed of nerve impulse conduction

What do Ranvier nodes contribute to

Amplify neuronal signals

Which of the following functions is NOT associated with abstrocytes

Remove dying cells

Which of the following neurtransmitters is more strongly associated with attention and alertness

norepinephrine

which of the following neurotransmitters is more strongly associated with memory

acethycholine

which of the following is the most fundamental unit of neuronal communication

neuronal ensembles

which brain structure is located directly behind the temporal and frontal lobes?

insula

Myelin enhances signal conductivity

true

The Hebb’s rule “neurons that fire together, wire together” was first proposed by Donald Hebb

False

How many layers does a typical cortical column have in the auditory cortex?

6

The basal ganglia is more strongly associated with …

reward processing and muscle memory

among other things the thalamus is..

a gateway to the cortex

the primates pack more neurons per brain mass unit than elephants

True

The processing of syntax is supported by..

temporal and frontal lobes

The perception of speech sounds is supported by the

temporal lobe

High alpha power is associated with higher arousal rates

false

the production of speech sounds is supported by the

frontal lobe

word processing is supported by the

temporal lobe

the cerebellum accounts for approx the what % of all neurons in the brain

80%

elephants can pack more neurons per brain mass unit than rodents

false

which of the following types of neural activity is measured by fMRI

changes in hemodynamic activity

which of the following neuroimaging tech provides the highest spatial resolution

magnetic resonance imaging

which of the following EEg components is NOT an ERP or onset response?

frequency following response FFR

Excitatory post-synaptic activity induces a… change in charge inside the neuronal soma

positive

what is the difference between ERP’s and EEG oscillations?

the duration

MRI studies examine brain … while fMRI studies examine brain..

structure… function

what ERP would be evoked by “the dog’s fur is very kind”

N400

was the salmon alive or dead in Craig bennets fMRI study

dead

what ERP would be evoked by “while she was dressing the baby played on the floor”

P600

Which of the neuroimaging tech is more invasive?

ECoG Electrocorticography

which type of neuron is most strongly associated with the generation of EEG signals?

pyramidal neurons

which neuroimaging techniques uses optodes

fNRIS

which of the following is NOT true of the ERP technique

effective for source localization

what does fNIRS have in common with fMRI

they track changes in blood oxgygenation

what do MEG and EEG have in common

great temporal resolution

which of the following brain stimulation techniques does not require surgery

TMS

which of the following is a common limitation of ECoG

contraints in electrode placement

which of the following technologies is more portable

EEG

which tech are best for monitoring gamma oscillations

MEG and ECoG