AP Psych brain imaging EEG fMRI PET cheat sheet
A comprehensive cheat sheet covering brain imaging techniques in AP Psychology, including EEG, fMRI, and PET scans, with key facts and differences for effective studying.
Quiz(36 questions)
1. What does an EEG primarily measure?
Terms in this Study Set(36)
Types of Brain Imaging(16)
EEG
Electroencephalogram: Measures electrical activity in the brain using electrodes on the scalp.
fMRI definition
Functional Magnetic Resonance Imaging: Detects brain activity by measuring changes in blood flow.
True or False: EEG can measure brain structures.
False. EEG measures electrical activity, not brain structures.
PET scan basics
Positron Emission Tomography: Uses radioactive tracers to visualize brain activity and metabolism.
fMRI vs. PET
fMRI: Non-invasive, measures blood flow. PET: Involves radioactive substances, shows metabolic processes.
What does EEG measure?
EEG measures electrical impulses, showing brain wave patterns for sleep, seizure activity, etc.
Applications of fMRI
Research in cognitive processes, brain mapping, understanding neurological disorders.
Fill in the blank: PET scans use ________ to visualize active brain areas.
radioactive tracers.
Advantages of EEG
- High temporal resolution - Real-time data - Non-invasive
When is fMRI preferred?
When studying brain functions during specific tasks, offering detailed spatial maps.
Disadvantages of PET scans
- Exposure to radiation - Higher costs - Lower temporal resolution compared to EEG
Which technique shows brain activity?
Both fMRI and PET scans show brain activity through blood flow and metabolism.
EEG's primary limitation
Limited spatial resolution compared to fMRI and PET scans.
Cause → Effect of fMRI
Increased neuron activity → Increased blood flow detected.
EEG waveform types
Delta, Theta, Alpha, Beta: Different frequencies indicate different brain states.
True or False: fMRI provides real-time data.
False. fMRI shows spatial data but has delays in capturing rapid brain activity.
Applications and Differences(20)
EEG: Primary use?
Monitoring electrical activity in the brain, especially for diagnosing epilepsy and sleep disorders.
fMRI: Main advantage?
High spatial resolution; allows for precise localization of brain activity in real-time.
True or False: PET scans measure electrical activity.
False. PET scans measure metabolic activity, not electrical activity.
Fill in the blank: EEGs are particularly useful in diagnosing _______.
epilepsy and sleep disorders.
Comparison: fMRI vs. PET?
fMRI: Faster, real-time imaging; PET: Measures glucose metabolism, slower.
Key disadvantage of EEG?
Poor spatial resolution; cannot precisely locate brain activity.
Cause → Effect: Increased glucose uptake in PET?
Indicates higher brain activity in that area.
Best imaging for brain tumors?
fMRI due to its high spatial resolution.
Main disadvantage of fMRI?
High cost and sensitivity to movement; requires stillness.
True or False: PET scans require radioactive tracers.
True. PET scans involve injecting a radioactive substance.
Which technique: studies sleep cycles?
EEG is used to study sleep cycles and brain waves.
Primary use of PET scans?
Assessing metabolic processes and brain activity in various disorders.
Disadvantage of PET scans?
Exposure to radiation and lower temporal resolution compared to EEG.
EEG: Best for monitoring _______.
real-time electrical activity during seizures.
Key advantage of EEG?
Cost-effective and provides real-time data on brain function.
Comparison: EEG vs. fMRI?
EEG: Measures electrical signals; fMRI: Measures blood flow.
Use of fMRI in research?
Investigating brain regions involved in cognitive tasks and emotional processing.
Disadvantage of fMRI?
Sensitivity to external noise can affect results.
What does a high signal in fMRI indicate?
Increased blood flow, implying higher neural activity.
PET scans are used to assess _______.
the progression of neurodegenerative diseases.
Questions in this Study Set(36)
1. What does an EEG primarily measure?
2. What is the primary function of an EEG?
3. Which imaging technique uses radioactive substances to visualize brain activity?
4. Which of the following is a main advantage of fMRI?
5. Which of the following statements is TRUE regarding fMRI?
6. True or False: EEGs are effective for diagnosing brain tumors.
7. What type of brain wave is associated with deep sleep?
8. Fill in the blank: The main use of PET scans is to assess _______.
9. Which imaging technique provides the highest temporal resolution?
10. In which scenario would an EEG be the best imaging technique?
11. True or False: PET scans can show brain structures.
12. Which technology measures blood flow in the brain?
13. When is fMRI preferred over PET?
14. Which of the following is NOT a disadvantage of EEG?
15. Which of the following is NOT an advantage of EEG?
16. What does increased glucose uptake in a PET scan indicate?
17. What primary limitation does EEG have compared to fMRI?
18. Which imaging technique is most sensitive to patient movement?
19. How does increased neuron activity relate to fMRI results?
20. True or False: PET scans utilize radioactive tracers.
21. Which brain imaging technique is most suitable for real-time monitoring of electrical activities?
22. What is a key disadvantage of fMRI compared to EEG?
23. True or False: fMRI provides real-time data.
24. Which technique can be used to study sleep cycles?
25. Which technique is typically more expensive due to the use of radioactive tracers?
26. Comparing EEG and fMRI, which measure provides real-time data?
27. Which brain imaging method is commonly used to study sleep patterns and seizures?
28. Which imaging technique is most effective for examining brain tumors?
29. What is a key difference between fMRI and PET scans?
30. What is the primary focus of PET scans?
31. Which of the following statements about fMRI is TRUE?
32. What does a decreased signal in fMRI scans typically indicate?
33. Which technique is best for assessing the progression of neurodegenerative diseases?
34. Which imaging technique is primarily used for monitoring metabolic processes in the brain?
35. Which of the following statements about fMRI is NOT true?
36. When comparing EEG and PET scans, which of the following is a key difference?
Related Study Sets
Gestaltgesetze Wahrnehmung Definitionen
Biologische Psychologie Neurotransmitter Definitionen
Schlaf und Schlafstadien Zusammenfassung
Stress und HPA-Achse Zusammenfassung
Klausur: Intelligenzmodelle Spearman Cattell
Testgütekriterien Objektivität Reliabilität Validität Prüfungsfragen
Klausur: Big Five Persönlichkeit
Emotionstheorien James-Lange und Schachter
Create Your Own Study Set
Upload a PDF, paste your notes, or describe a topic – AI generates flashcards, quizzes and more in seconds.
