نتایج جستجو برای: evoked magnetic fields

تعداد نتایج: 578127  

Journal: :Journal of neurophysiology 2006
Shotaro Karino Masato Yumoto Kenji Itoh Akira Uno Keiko Yamakawa Sotaro Sekimoto Kimitaka Kaga

The dichotic presentation of two sinusoids with a slight difference in frequency elicits subjective fluctuations called binaural beat (BB). BBs provide a classic example of binaural interaction considered to result from neural interaction in the central auditory pathway that receives input from both ears. To explore the cortical representation of the fluctuation of BB, we recorded magnetic fiel...

Journal: :Neuron 2007
Mark Hallett

Transcranial magnetic stimulation (TMS) is a technique for noninvasive stimulation of the human brain. Stimulation is produced by generating a brief, high-intensity magnetic field by passing a brief electric current through a magnetic coil. The field can excite or inhibit a small area of brain below the coil. All parts of the brain just beneath the skull can be influenced, but most studies have...

Journal: :iranian journal of medical physics 0
mehri kaviani moghadam ph.d. student in medical physics, tarbiat modares university, tehran, iran , seyed mohammad jafar pourmir firoozabadi associate professor, medical physics dept., tarbiat modares university, tehran, iran m. lak m.sc. student in biomedical engineering (bioelectric), science and research campus, islamic azad university, member of young researchers club, tehran, iran m. janahmadi professor, physiology and neuroscience research center, shahid beheshti medical sciences university, tehran, iran

introduction:  the  use  of  mobile  communication  systems  has  dramatically  increased  over  the  past  decade. although many studies have been performed to determine the effect of radio frequency (rf) but  less attention has been paid to the possible biological impact of exposure to extremely low frequency  (elf) components.   the objective of this study is two folds. one is to design the ...

Journal: :iranian journal of medical sciences 0
maryam heidari department of medical physics, school of medicine, shiraz university of medical sciences, shiraz, iran; and student research committee, shiraz university of medical sciences, shiraz, iran naghmeh sattarahmady department of medical physics, school of medicine, shiraz university of medical sciences, shiraz, iran; and nanomedicine and nanobiology research center, school of medicine, shiraz university of medical sciences, shiraz, iran sirus javadpour department of materials science and engineering, school of electrical and computer engineering, shiraz university, shiraz, iran negar azarpira transplant research center, department of pathology, namazee teaching hospital, shiraz university of medical sciences, shiraz, iran hossein heli department of nanomedicine, school of advanced medical sciences and technologies, shiraz university of medical sciences, shiraz, iran alireza mehdizadeh department of medical physics, school of medicine, shiraz university of medical sciences, shiraz, iran; and nanomedicine and nanobiology research center, school of medicine, shiraz university of medical sciences, shiraz, iran

background: nowadays, magnetic nanoparticles (mnps) have received much attention because of their enormous potentials in many fields such as magnetic fluid hyperthermia (mfh). the goal of hyperthermia is to increase the temperature of malignant cells to destroy them without any lethal effect on normal tissues. to investigate the effectiveness of cancer therapy by magnetic fluid hyperthermia, fe...

2013
Jorge Arrubla Irene Neuner David Hahn Frank Boers N. Jon Shah

Simultaneous recording of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) has shown a number of advantages that make this multimodal technique superior to fMRI alone. The feasibility of recording EEG at ultra-high static magnetic field up to 9.4 T was recently demonstrated and promises to be implemented soon in fMRI studies at ultra high magnetic fields. Recording ...

1998
Burkhart Bromm Jürgen Lorenz

Neurophysiological techniques for the evaluation of pain in humans have made important advances in the last decade. A number of features of neuroanatomy and physiology of nociception qualifies pain as a multidimensional phenomenon which is rather unique among the sensory systems and which poses a number of technical and procedural requirements for its appropriate diagnostic assessment. Various ...

Journal: :Brain research 2011
Blake T Dotta Carly A Buckner Robert M Lafrenie Michael A Persinger

Light flashes delivered to one aggregate of cells evoked increased photon emission in another aggregate of cells maintained in the dark in another room if both aggregates shared the same temporospatial configuration of changing rate, circular magnetic fields. During the presentation of the same shared circumcerebral magnetic fields increases in photon emission occurred beside the heads of human...

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