wsun at jeeves.ucsd.edu (Fiberman) writes:
>Hello all,
>For the electrophysiologists out there: What is meant by single
>unit and multiple unit recordings? This is in reference to
>recording activity from cells in the brain.
>-fm
Quite simple. Single Unit recording is from a single nerve cell
(neurone) or fibre (usually with an extracellular electrode).
multi-unit is when a single electrode picks up action potentials from
several cells or fibres, and these are then seen as a collection of
spikes on the recording: this is sometimes useful for looking at the
population repsonse of a group of closely grouped cells (eg in a
cortical area).
Tom Salt.
