neuroimaging- lecture 5

What is a neural circuit in the brain?

A group of neurons that work together to process information. (correct)

A specific area of the brain responsible for emotional regulation.

A sequence of muscle movements coordinated by the brain.

A type of neurotransmitter that facilitates communication between neurons.

What is a microcircuit in the brain?

A small, localized network of neurons that processes specific information. (correct)

A large-scale network connecting different brain regions.

An electrical circuit used to study brain activity.

A type of brain scan that visualizes neural pathways.

What is a cortical neuron?

A type of neuron located in the brain's cortex responsible for processing sensory information. (correct)

A type of neuron found only in the spinal cord.

A type of neuron responsible for motor function in the limbs.

A type of neuron that connects between the cerebellum and the cerebral cortex.

How are cortical neurons organized?

In layers, each with distinct types of neurons Signup and view all the answers

What is the neocortex in the brain?

A part of the brain involved in higher-order brain functions such as sensory perception, cognition, and motor commands. Signup and view all the answers

What type of neurons are present in the neocortex?

Spiny neurons Signup and view all the answers

What is a spiny neurone?

A type of excitatory neuron characterized by spines on its dendrites Signup and view all the answers

What is a non-spiny neuron?

An inhbitory neuron that does not have dendritic spines. Signup and view all the answers

What type of signals do non-spiny neurons primarily receive?

Inhibitory signals- GABA Signup and view all the answers

What is electrophysiology?

The study of electrical properties of biological cells and tissues. Signup and view all the answers

What is an ephys ring?

A circular array of electrodes for in vivo recordings Signup and view all the answers

What is a tetrode?

A four-terminal device used in various electronic applications. Signup and view all the answers

What does a tetrode record?

Extracellular field potentials from nervous tissue Signup and view all the answers

What is a limitation of patch clamps?

They are not suitable for recordings from large populations of neurons and have a low spatial resolution. Signup and view all the answers

What is a calcium dye used for in neuroscience?

To measure intracellular calcium levels Signup and view all the answers

What is a radiometric calcium dye?

A dye used to measure calcium concentration in cells Signup and view all the answers