5.7

Question 1

Microelectrode

Answer 1

A very fine electrode,
generally used to record activity of individual neurons.

Question 2

Single-unit recording

Answer 2

Recording of the electrical activity of a single neuron

Question 3

macroelectrode

Answer 3

An electrode used
to record the electrical activity of large
numbers of neurons in a particular
region of the brain; much larger than a
microelectrode.

Question 4

Electroencephalogram (EEG)

Answer 4

An electrical brain potential recorded by
placing electrodes on the scalp.

Question 5

Magnetoencephalography

Answer 5

A procedure that detects groups of synchronously activated neurons by means of the magnetic field induced by their electrical
activity; uses an array of superconducting
quantum interference devices, or SQUIDs.