Asked by Briana Espinoza on Feb 18, 2024
Verified
Describe the different brain-imaging techniques that can be used to identify specific deficits and brain abnormalities.
Electroencephalogram (EEG)
Procedure in which multiple electrodes are placed on the scalp to detect low-voltage electrical current produced by the firing of specific neurons in the brain.
- Differentiating between structural and functional brain-imaging techniques
- Identifying the specific deficits and abnormalities that can be detected using brain-imaging techniques
- Understanding the principles of brain-imaging techniques
Verified Answer
KW
Katie WolffFeb 18, 2024
Final Answer :
Key terms and concepts that may be included in student responses:
▪ Computerized tomography (CT)-brain structure rather than brain activity; exposes patients to radiation.
▪ Positron-emission tomography (PET)-shows brain activity; requires injection of harmless radioactive dye.
▪ Single photon emission computed tomography (SPECT)-similar to a PET, but uses a different injectable tracer compound; less expensive, but also less accurate.
▪ Magnetic resonance imaging (MRI)-gives brain structure (fMRI gives brain activity)and doesn't require any exposure to harmful radiation or other compounds.
▪ Computerized tomography (CT)-brain structure rather than brain activity; exposes patients to radiation.
▪ Positron-emission tomography (PET)-shows brain activity; requires injection of harmless radioactive dye.
▪ Single photon emission computed tomography (SPECT)-similar to a PET, but uses a different injectable tracer compound; less expensive, but also less accurate.
▪ Magnetic resonance imaging (MRI)-gives brain structure (fMRI gives brain activity)and doesn't require any exposure to harmful radiation or other compounds.
Learning Objectives
- Differentiating between structural and functional brain-imaging techniques
- Identifying the specific deficits and abnormalities that can be detected using brain-imaging techniques
- Understanding the principles of brain-imaging techniques
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