
Biological approach midterm revision

Quiz
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Other
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11th Grade
•
Medium
Daniela Leyva
Used 4+ times
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19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Neuroplasticity is the result of...
stress hormones leading to cell death or growth.
dietary changes.
an increase or decrease of neurotransmitters in the brain.
the repeated firing of the neurons in a specific area of the brain.
Answer explanation
Neuroplasticity is the result of long-term potentiation - that is, the repeated firing of neurons. Remember, neurons that fire together, wire together.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Research shows that the hippocampus plays the role of consolidating episodic memory from STM to LTM. This is an example of...
Neuroplasticity
Stricit localization of function
Distribution of function
Relative localization
Answer explanation
Strict localization is when we can say that a specific part of the brain has a specific function related to behavior or cognition.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An fMRI measures neural activity by measuring which of the following?
The activity of hydrogen molecules
The breakdown of a radioactive isotope injected into the patient
Change in levels of oxygen in the blood.
The spin of protons
Answer explanation
An fMRI detects changes in blood oxygenation and flow that occur in response to neural activity – when a brain area is more active it consumes more oxygen and to meet this increased demand blood flow increases to the active area. An MRI scanner uses a magnetic field and radio waves to map the activity of hydrogen molecules, which are present in different brain tissue to different degrees. The image can either be viewed as a slice of the brain from any angle, or it can be used to create a three-dimensional image of the brain.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is not a conclusion that we can draw from the HM study?
Memory is stored in the hippocampus.
Different types of memory may be transferred to long-term memory differently.
The hippocampus plays a role in retrieving information from long-term memory.
The hippocampus plays a role in transferring information from short-term to long-term memory.
Answer explanation
Rather than ALL memory is being stored in the hippocampus, HM's case gave evidence that the hippocampus transfers information from short-term to long-term memory, and then moves information from long-term memory to short-term memory.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
____ is a brain imaging technique that could be considered invasive.
Answer explanation
In order to carry out a PET scan, participants are injected with a radioactive isotope. This would be considered an invasive technique.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between an MRI and an fMRI?
MRIs are more claustrophobic than fMRIs.
MRIs show the structure of the brain; fMRIs show the functioning brain.
MRIs show coloured images of the brain; the fMRI is green and black.
MRIs are invasive; fMRIs are not.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of localization of function?
Two parts of the brain work together in solving a problem.
The hippocampus transfers information from short-term memory to long-term memory.
The brain changes as a result of interacting with the environment.
The right side of the brain controls the left side of the body and vice versa.
Answer explanation
When more than one part of the brain is involved, this is a distributive function. The change in the brain's structure in reaction to the environment is known as neuroplasticity. The different hemispheres of the brain do help the opposite side of the body; this is called lateralization, not localization.
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