Neuroscience Techniques for Neurophysiology lecture 6

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What is a technique used to determine long distance neuronal connections?

Neuronal tracing (correct)

Microdialysis

Immunofluorescence

Western blotting

What is anterograde tracing?

A technique that tracks the pathway of neural connections from the cell body to synapses (correct)

A method to visualize blood flow in the brain.

A technique for measuring electrical activity of neurons.

A method to observe the movement of neurotransmitters across synapses.

What is retrograde tracing in neuroscience?

A method to trace neural connections from source to termination (cell to synapse)

A technique used to study neuronal activity in real-time

A method to trace neural connections from termination to source (synapse to cell) (correct)

A procedure for isolating neurotransmitters from brain tissue samples

Which of these tracers are used in neuroanatomy? (Select all that apply)

Anterograde Signup and view all the answers

What is an EEG?

A method for measuring electrical activity of the brain. Signup and view all the answers

What does EEG stand for?

Electroencephalography Signup and view all the answers

What are the two types of resolution in neuroscience techniques?

Temporal and Spatial Signup and view all the answers

What do temporal and spatial resolution mean in terms of neuroscience?

Temporal resolution refers to the ability to distinguish events in time, while spatial resolution refers to the ability to distinguish locations in space. Signup and view all the answers

How does an EEG (Electroencephalogram) work?

It records brain activity by detecting electrical impulses through electrodes placed on the scalp. Signup and view all the answers

What does an EEG show in terms of oscillations?

Brain wave patterns at different frequencies Signup and view all the answers

Which wave has the highest frequency?

Gamma Rays Signup and view all the answers

What are beta waves associated with in the context of brain activity?

Movement Signup and view all the answers

What are brain-machine interfaces?

Devices that allow direct communication between the brain and external devices. Signup and view all the answers

What does ECoG stand for?

Electrocorticography Signup and view all the answers

What kind of patients is ECoG specifically used for?

Patients with epilepsy Signup and view all the answers

Which technique has better spatial resolution, ECG or ECoG?

ECoG Signup and view all the answers

What is the local field potential?

The average electrical potential of a large population of neurons within a specific area. Signup and view all the answers

Which is more localized, ECoG or local field potentials?

Local field potentials Signup and view all the answers

What is a visual evoked potential?

A measurement of brain responses to visual stimuli- record activity in occipital lobe and a flash of light will show a characteristic result Signup and view all the answers

What is a peripheral non-invasive technique for perturbing the CNS?

Electrical activation of axons in the nerve Signup and view all the answers

What is an example of mechanical perturbation of the CNS?

Knee jerk reflex Signup and view all the answers

What does TMS stand for in neuroscience?

Transcranial Magnetic Stimulation Signup and view all the answers

How does Transcranial Magnetic Stimulation (TMS) work?

It uses magnetic fields to stimulate nerve cells in the brain. Signup and view all the answers