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1. Odor responses to two homologous series of n-fatty acids (nFA) and n-aliphatic alcohols (nAA) with a straight chain of three to nine carbons were examined by measuring odor-induced [Ca2+]i increase in mouse olfactory receptor neurons (ORNs) isolated by the tissue-printing method. 2. One-third of the ORNs responsive to nFA and/or nAA were alternately(More)
Olfactory transduction involves second messenger-related enzymes and cAMP-gated, K+ and Ca2+ channels, which are known to be regulated by Ca2+. We report here that cytosolic free Ca2+ concentration ([Ca2+]i) in olfactory receptor neuron was increased by odorants or forskolin and Ca2+ influx contributed to the adaptation. The increases in [Ca2+]i were below(More)
Ninety-nine single neuron activities of the dorsolateral prefrontal cortex of 3 monkeys were recorded during performance of a Konorski task. Green or red lights were presented successively with a separation of fixed delay interval. The monkey responded as soon as the second stimulus was presented. If the two stimuli were color-matched, the 'YES' lever press(More)
Auditory evoked magnetic fields in relation to iterated rippled noise (IRN) were examined by magnetoencephalography (MEG). IRN was used as the sound stimulus to control the peak amplitude of the autocorrelation function of the sound. The IRN was produced by a delay-and-add algorithm applied to bandpass noise that was filtered using fourth-order Butterworth(More)
Sound duration conveys phonemic information in some languages. The present study, using magnetoencephalography (MEG), examined whether the hemispheric activation associated with the processing of duration is different between speech and non-speech sounds in subjects whose native language uses duration as a phonemic cue. The magnetic mismatch negativity(More)
1 Introduction Recent studies on non-invasive recordings from human brain have shown the existence of taste-elicited activation areas in the cerebral cortex [1,2]. Magnetoencephalogram (MEG) is a popular instrument for these non-invasive measurement as well as functional MRI (f-MRI) and positron CT (PET). The advantage of MEG measurement is easy to analyze(More)
Auditory evoked magnetic fields in relation to the bandwidth of bandpass noise were examined by magnetoencephalography (MEG). Pure tone and bandpass noises with center frequencies of 500, 1000 or 2000 Hz were used as the auditory signals. All source signals had the sound pressure level set at 74 dB. The stimulus duration was 0.5 s, with rise and fall ramps(More)
Cortical site processing the information of whole body linear acceleration has not yet been identified. In this study, neuromagnetic responses to visually induced linear forward acceleration were recorded in six healthy-right-handed adult subjects using a 122-channel whole cortex neuromagnetometer. Significant activation was estimated in the cortex around(More)
Electrogustometry is a convenient method to examine taste acuity in clinical situations. Some basic properties of neural activity in the cerebral cortex in response to electrogustatory stimulation were revealed by measuring magnetoencephalography (MEG) signals with a whole-cortex-type system in response to varying intensities of anodal DC currents focally(More)
Auditory motion can be simulated by presenting binaural sounds with time-varying interaural time delays. Human cortical responses to the rate of auditory motion were studied by recording auditory evoked magnetic fields with a 122-channel whole-head magnetometer. Auditory motion from central to right and then to central was produced by varying interaural(More)