2024-03-29T14:47:43Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00022044
2022-12-15T03:52:29Z
453:456
471:537:538:1194
ネコ聴覚野の帯域雑音受容ニューロンの反応成立要因について
ネコ聴覚野の帯域雑音受容ニューロンの反応成立要因について
Stimulus Parameters which the Response of Band of Noise Receivers in the Auditory Cortex of the Cat is Dependent on
新沢, 秀範
Auditory cortex
Band of noise
Band of noise receiver
聴覚野
帯域雑音
帯域雑音受容ニューロン
The response of the band of noise receiver in the cat auditory cortex AI had been thought to be dependent on the spectrum of the stimulus sound. In order to examine whether this idea is correct or not, the present experiments were performed. We used pure tones, AM (amplitude modulated) bands of noise, FM (frequency modulated) bands of noise and several kinds of periodically fluctuating sounds for the stimuli. These fluctuating sounds had similar spectral patterns but different wave envelopes each other. Some band of noise receivers showed the similar response to the sawtooth AM tone with fast-rising-slow-falling envelope and that with slow-rising-fast-falling envelope. Some other band of noise receivers showed the different responses to these two stimuli. Therefore, the response of the band of noise receiver was dependent not noly on the spectrum but also on the wave envelope. We found several neurons whose effective range of center frequency was extremely narrow for AM bands of noise. And the effective range of center frequency of these neurons for FM bands was of two separate patches at the both sides of effective range for AM bands. The results suggested the mechanism that the lower level neuron, which fed an input to the neuron observed, was excited when the stimuli crossed the boundary between inhibitory and excitatory areas. The band of noise receiver might receive synaptic convergencies of this sort of neurons from a wide extent of the lower level.
新潟医学会
1990-09
jpn
departmental bulletin paper
http://hdl.handle.net/10191/34668
https://niigata-u.repo.nii.ac.jp/records/22044
AN00182415
00290440
新潟医学会雑誌
新潟医学会雑誌
104
9
763
776
https://niigata-u.repo.nii.ac.jp/record/22044/files/104(9)_763-776.pdf
application/pdf
2.8 MB
2019-08-16