Given below are two statements: In the context of recording neural activities : Statement I: Microelectrodes are used for single unit recording Statement II: Macroelectrodes are sometimes directly implanted by the surgeon into the human brain to detect the source of abnormal electrical activity that gives rise to seizures in a person In light of the above statements, choose the correct answer from the options given below:
Neural Activity Recording: Electrode Functions
This question assesses the understanding of different electrode types used in neuroscience and their specific applications.
Statement I Analysis: Microelectrodes and Single Unit Recording
Statement I claims that microelectrodes are used for single unit recording. Microelectrodes are very fine-tipped electrodes designed to record the electrical potential of individual neurons. This technique, known as single-unit recording, allows researchers to study the activity of single nerve cells. Therefore, Statement I is true.
Statement II Analysis: Macroelectrodes in Epilepsy Surgery
Statement II states that macroelectrodes are sometimes implanted into the human brain by surgeons to detect seizure sources. Macroelectrodes, which cover larger areas than microelectrodes, are used in clinical settings like epilepsy surgery. Specifically, intracranial EEG (iEEG), which can involve surgically placed macroelectrodes (like ECoG grids or depth electrodes), is used to precisely locate the brain regions responsible for seizures (seizure foci). Thus, Statement II is also true.
Conclusion
Since both Statement I and Statement II accurately describe the functions and applications of microelectrodes and macroelectrodes, respectively, the correct option is the one stating both are true.
Important Questions from Nervous system - Teaching
- Arrange the sequence of the Central Nervous System:
A. Dura matter
B. Sub-arachnoid space
C. Cerebrospinal Fluid
D. Arachnoid membrane
Choose the correct answer from the options given below: - The most recent reported evolutionary development of the brain convulsions has two main regions -
A. Dorsal portion
B. Ventral portion
C. Gyri
D. Sulci
Choose the most appropriate answer from the options given below: - Which of the neuron parts are in correct sequence:
A. Dendrite
B. Cell body
C. Axon
D. End Brush
E. Terminal Bottom
Choose the correct answer from the options given below: - The inner most meninx which adheres to the surface of the central nervous system is.
- The basal ganglia structures dominate the entire motor functions of -
A. Elephant
B. Human
C. Birds
D. Reptiles
Choose the most appropriate answer from the options given below:
