Microelectrode array

Microelectrode arrays (MEAs) (also referred to as multielectrode arrays^[1]) are devices that contain multiple (tens to thousands) microelectrodes through which neural signals are obtained or delivered, essentially serving as neural interfaces that connect neurons to electronic circuitry. There are two general classes of MEAs: implantable MEAs, used in vivo, and non-implantable MEAs, used in vitro.

^ The common misnomer multielectrode array replaces the prefix micro- with multi-, whose meaning is redundant with array. Micro- is important, as a small electrode is necessary to resolve the activity of single cells. Note that a microelectrode array is used for multichannel recordings.

[1] The common misnomer multielectrode array replaces the prefix micro- with multi-, whose meaning is redundant with array. Micro- is important, as a small electrode is necessary to resolve the activity of single cells. Note that a microelectrode array is used for multichannel recordings.

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