An intracerebral probe (11) comprising a first part (20) with laser or cryogenic treatment means and further comprising a hollow second part (22) surrounding the first, the first part sliding inside the second part along its longitudinal axis (A) and a plurality of detectors (16) distributed along a portion of the second part (22) in such a manner as to be capable of identifying a brain dysfunction zone along the longitudinal axis (A) of the second part. Advantageously, the probe presents a lateral treatment window enabling the action of the treatment means to be directed. The invention also provides a kit and a treatment system including such a probe, and the use thereof of treating cell dysfunctions that give rise to neurological or psychiatric symptoms.
