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[Report on the experience in intracellular microelectrode studies of the external eye muscles with the stereotactic surgical device SESH-2].

The Soviet SESH-2 stereotactic surgical device for micro-electrode examinations offers technical advantages in the derivation of the intracellular muscle fibre membrane potential after resting and of the intracellular potential of the peripheric ocular muscles after irritation as well as in the study of the central irritation of the nuclei of the ocular muscles. The coupling of two hydraulic micromanipulators permits to perform in vivo various investigations of the ocular muscles by means of micro-electrodes. The numerous possibilities of variation and assembly according to the modular principle allows also simultaneous studies on ocular muscle mechanics.

Animals↗

A recording procedure for chronic microelectrodes in the paralyzed cat.

A method is described for repeated recording sessions of cortical thalamic units in the unanaesthetized but paralyzed animal. Because the recording chamber is miniaturized, it is well tolerated by the subject between sessions. The system also permits painless and stable immobilization of the head without the use of earbars, avoiding surgical preparation during the actual recording sessions and allowing long periods of recording. Between sessions the animals always display normal behavior.

Animals↗