Auditory Evoked Magnetic Fields and Stimulus Serial Position
نویسندگان
چکیده
منابع مشابه
Human auditory evoked gamma-band magnetic fields.
We have discovered a ca. 40-Hz transient magnetic oscillatory response, evoked in the human brain by the onset of auditory stimuli, consisting of four or more cycles locked in phase to stimulus onset in approximately the 20- to 130-ms poststimulus interval. The response originates in the supratemporal auditory cortex, some millimeters deeper and anterior to the source of the larger-amplitude sl...
متن کاملAuditory evoked magnetic fields of subcortical origin
Magnetoencephalography (MEG) is generally dealing with cortical sources, since the sensitivity of MEG declines rapidly with increasing source depth. Two factors are responsible for this loss of sensitivity. First, the amplitude of the measured MEG is inversely proportional to the squared distance between sensors and source, and this distance naturally increases with source depth. Second, the ME...
متن کاملAuditory evoked magnetic fields in individuals with tinnitus☆
Some forms of tinnitus are likely to be perceptual consequences of altered neural activity in the central auditory system triggered by damage to the auditory periphery. Animal studies report changes in the evoked responses after noise exposure or ototoxic drugs in inferior colliculus and auditory cortex. However, human electrophysiological evidence is rather equivocal: increased, reduced or no ...
متن کاملHemispheric asymmetry of auditory evoked fields elicited by spectral versus temporal stimulus change.
The investigation of functional hemispheric asymmetries regarding auditory processing in the human brain still remains a challenge. Classical lesion and recent neuroimaging studies indicated that speech is dominantly processed in the left hemisphere, whereas music is dominantly processed in the right. However, recent studies demonstrated that the functional hemispheric asymmetries were not limi...
متن کاملKeywords- fetal magnetoencephalography, auditory evoked fields (AEF)
The development of a technique for the recording of fetal brain activity has been highly limited by the inaccessibility of the developing human brain in utero. Based on the needs of resolution and a noninvasive nature, only biomagnetic measurements are suitable for the determination of the integrity of the fetal brain on a routine basis. We have built a new biomagnetic measurement device dedica...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Magnetics Society of Japan
سال: 1998
ISSN: 0285-0192
DOI: 10.3379/jmsjmag.22.785