Single-Cell Recording: An Inside Look at a Brain Cell’s Work

The brain is made up of thousands of cells that make sense of what a person experiences. These cells, which are called neurons, all have different jobs depending on where they are in the brain. Scientists use multiple methods to collect information about how and when neurons react; this is sort of like taking a picture of the brain’s activity! To understand the jobs neurons do, researchers generally use methods that do not go directly into the brain. These approaches are commonly used because they are convenient; however, because they are “pictures” taken from outside the skull, the information they provide scientists may be incomplete or inaccurate. Fortunately, it is also possible for researchers to use a method that goes directly inside the brain tissue, called single-cell recording, to more accurately capture what a neuron is doing.