A low cost, high precision subminiature microdrive for extracellular unit recording in behaving animals

A new design for an inexpensive and reliable subminiature microdrive for un it recording in the freely moving animal is presented. The 'Scribe' microdr ive is (a) of a small size and low weight, (b) allows for precise advanceme nt of the electrodes, (c) permits stable unit recordings over time, (d) is simple to install, and (e) is economical to construct. These advantages are a result of its simple, single screw-based drive system and the ready avai lability of component parts. The Scribe microdrive is a small diameter devi ce suitable for multi-site, multi-electrode applications. (C) 1999 Elsevier Science B.V. All rights reserved.