Singh, Krish Devi  ORCID: https://orcid.org/0000-0002-3094-2475, Ioannides, A. A., Gray, N., Kober, H., Pongratz, H., Daun, A., Grummich, P. and Vieth, J.
1994.
Distributed current analyses of bi-hemispheric magnetic N1m responses to ipsi/contralateral monaural stimuli from a single subject.
Electroencephalography and Clinical Neurophysiology/Evoked potentials
92
(4)
, pp. 365-368.
10.1016/0168-5597(94)90104-X
|
Abstract
Magnetoencephalographic (MEG) responses of both auditory cortices to simple auditory stimuli presented monaurally to either ear were recorded from a single subject. A distributed current model and a current dipole model were used to analyse the responses at the latency of the dominant N1m complex. At the N1m the current density was localised to a single area and was consequently well modelled by a single current dipole close to the peak current density. In the left hemisphere, the contralateral response (as identified by the peak current density) preceded the ipsilateral response by 3 msec. This value was 7 msec for the right hemisphere. Evidence was found in the right hemisphere of a posterior-anterior movement along the sylvian fissure. Also, the left hemisphere N1m sources were all represented more posterior than the right hemisphere N1m sources.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Psychology Neuroscience and Mental Health Research Institute (NMHRI) |
| Subjects: | R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
| Uncontrolled Keywords: | Magnetoencephalogram (MEG); Distributed current analysis; Equivalent current dipoles; Auditory evoked N1m responses |
| Publisher: | Elsevier |
| ISSN: | 0168-5597 |
| Last Modified: | 21 Oct 2022 09:53 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/38205 |
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