BIOD322 Neuroscience (Module 3) Latest Final Test Review Q & S 2024
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Course
BIOD322
Institution
BIOD322
BIOD322 Neuroscience (ModuleBIOD322 Neuroscience (Module 3) Latest Final Test Review Q & S 2024BIOD322 Neuroscience (Module 3) Latest Final Test Review Q & S 2024 3) Latest Final Test Review Q & S 2024
,1. What is the primary purpose of using optogenetics in
neuroscience research?
A) To observe neuronal activity in real-time
B) To manipulate neuronal activity using light
C) To replace neuronal activity with synthetic responses
D) To enhance the speed of neuronal synapses
Correct Answer: B) To manipulate neuronal activity using
light
Rationale: Optogenetics is a technique that allows researchers to
control the activity of neurons with high temporal precision using
light, which is crucial for understanding how specific neural
circuits function.
, Rationale: A gigaseal is a high-resistance seal (in the gigaohm
range) that is essential for isolating the current flow only through
the patch of membrane under study.
3. Which imaging technique is most appropriate for visualizing
neural activity in real-time?
A) MRI
B) fMRI
C) PET
D) Calcium imaging
Correct Answer: D) Calcium imaging
Rationale: Calcium imaging utilizes indicators that fluoresce in
the presence of calcium ions, allowing researchers to visualize
and measure neural activity as it happens due to the rapid changes
in calcium concentration associated with neuron firing.
4. What is the advantage of using transcranial magnetic
stimulation (TMS) in cognitive neuroscience research?
A) It provides detailed structural images of the brain.
B) It allows for the manipulation of brain activity in targeted
regions.
C) It can measure the electrical activity of the brain.
D) It is used to treat neurological disorders.
, Correct Answer: B) It allows for the manipulation of brain
activity in targeted regions.
Rationale: TMS is a non-invasive method that can temporarily
disrupt or enhance neural activity in specific brain areas, which is
useful for studying the function of those regions in cognition.
5. In the context of neuroimaging, what does 'BOLD signal' stand
for?
A) Brain Oscillation and Longitudinal Displacement
B) Blood Oxygen Level Dependent
C) Basal Optic Lateral Disruption
D) Bilateral Olfactory Lobe Disintegration
Correct Answer: B) Blood Oxygen Level Dependent
Rationale: The BOLD signal is used in fMRI to measure
changes in blood oxygenation and flow that occur in response to
neural activity, as active neurons consume more oxygen.
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