Neuromagnetic responses to frequency modulation of a continuous tone.
Neuromagnetic responses to frequency modulation of a continuous tone were studied in nine subjects. The latencies of the transient responses increased and the amplitudes decreased with decreasing speed of modulation. The equivalent dipoles for modulation of a 1,000 Hz tone were slightly but statistically significantly anterior to the dipoles activated by modulation of a 500 Hz tone. The generation mechanisms of N100m are discussed.
Hari
R
R
Mäkelä
J P
JP
D000161:Acoustic Stimulation; D001299:Audiometry / Q000379:methods*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008280:Magnetics; D008297:Male; D011930:Reaction Time