Biomagnetism is the measurement of the weak magnetic fields produced by nerves and
muscle. The magnetic field of the heart—the magnetocardiogram (MCG)—is the largest …

Here, the functions of the angular gyrus (AG) are evaluated in the light of current evidence
from transcranial magnetic/electric stimulation (TMS/TES) and EEG/MEG studies. 65 …

Objective Lesion-based mapping of speech pathways has been possible only during
invasive neurosurgical procedures using direct cortical stimulation (DCS). However …

Objective Noninvasive brain imaging tests can potentially supplement or even replace the
use of intracranial electroencephalogram (ICEEG), an invasive, costly procedure used in …

The intracarotid amobarbital procedure or Wada test has been the gold standard for
lateralization of language dominance before epilepsy surgery. It is based on deactivation of …

Functional MRI (fMRI) is routinely used to non-invasively localize language areas.
Magnetoencephalography (MEG) is being explored as an alternative technique. MEG tasks …

Background Linguistic stimuli presented acoustically or visually result in language-related
responses (late responses) in addition to primary auditory and visual responses (early …

Previous functional magnetic resonance imaging (fMRI) studies investigating hemispheric
dominance for language have shown that hemispheric specialization increases with age …

The question we address here is whether the invasive presurgical brain mapping
approaches of direct cortical stimulation and of the Wada procedure can be replaced by …

Magnetoencephalography recordings were made on 27 patients with localization related
epilepsy during two different language tasks involving semantic and phonological …