In which of the methods of physiological psychology devices are precisely positioned in the depth of the brain?
Stereotaxic surgery
Stereotaxic surgery uses a stereotaxic apparatus that holds the skull in a fixed orientation and, together with a brain atlas, provides a three-dimensional (anterior-posterior, medial-lateral and dorsal-ventral) coordinate system.
Guided by these coordinates, electrodes, cannulae or lesion probes can be lowered to a target nucleus deep within the brain with sub-millimetre accuracy, something impossible with aspiration lesions (which target cortical surface tissue), transcranial magnetic stimulation (a non-invasive scalp technique) or the deoxyglucose autoradiographic technique (a metabolic mapping method).
Hence, the method in which devices are precisely positioned in the depth of the brain is stereotaxic surgery.
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