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 (stĕr′ē-ə-tăk′sĭs, stîr′-) also ster·e·o·tax·y (stĕr′ē-ə-tăk′sē, stîr′-)
A method in neurosurgery and neurological research for locating points within the brain using an external, three-dimensional frame of reference usually based on the Cartesian coordinate system.

ster′e·o·tac′tic (-tăk′tĭk), ster′e·o·tax′ic (-tăk′sĭk), ster′e·o·tac′ti·cal (-tăk′tĭ-kəl), ster′e·o·tax′i·cal (-tăk′sĭ-kəl) adj.
ster′e·o·tac′ti·cal·ly, ster′e·o·tax′i·cal·ly adv.


(ˌstɛrɪəˈtæktɪk; ˌstɪər-) ,




1. (Biology) of or relating to stereotaxis
2. (Medicine) med of or relating to precise localization of a tissue, esp in the brain: stereotactic surgery.
ˌstereoˈtactically, ˌstereoˈtaxically adv


adj estereotáxico
References in periodicals archive ?
For central injections, a guide cannula was stereotaxically implanted in the third cerebral ventricle according to the stereotaxic coordinates (AP=-2.
The lateral ventricle of both sides of the brain was approached stereotaxically [11] (AP -0.
Louis, MO, USA) and then placed in stereotaxic apparatus for operation; a permanent guide cannula was aseptically and stereotaxically implanted into the right lateral ventricle of rats using the coordinates (AP, -1.
Stainless steel screw electrodes were stereotaxically implanted in 3 mm lateral within the left hemisphere with anteroposterior (AP) coordinates +3 mm and -4 mm for frontal and parietal cortices according to the rat brain atlas (Paxinos and Watson 1982).
Usually the animals were anesthetized with ip pentobarbital (50 mg/kg bw) and a 20-gauge stainless guide cannula was positioned stereotaxically above a lateral cerebral ventricle at the following coordinates: 1.