ZHANG Yong-hai,SUI Jian-feng,LIU Guo-long,LI Zhi-fang,XIONG Ying.Characteristics of frequency response areas of neurons in primary auditory cortex of rats[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(07):576-578.
ZHANG Yong-hai,SUI Jian-feng,LIU Guo-long,LI Zhi-fang,XIONG Ying.Characteristics of frequency response areas of neurons in primary auditory cortex of rats[J].J Amry Med Univ (J Third Mil Med Univ),2007,29(07):576-578.DOI:
Objective To investigate the characteristics of frequency response areas of neurons in the primary auditory cortex. Methods Extracellular multi-unit activities were recorded in the primary auditory cortex of the rats with tungsten microelectrodes.The frequency-intensity response areas were acquired and analyzed by the Brainware software. Results We recorded totally 106 neurons′ activities from 15 SD rats. Their best frequencies ranged from 2 kHz to 45 kHz. According to the shape of the excitatory frequency response areas (eFRA)
we could classify them into 6 classes
that is
U-shaped (29.5%)
V-shaped (20%)
lower-tailed-upper-sharp (19%)
circumscribed (15%)
slant-lower (7.5%) and multi-peaked (9%). Conclusion The shapes of the excitatory frequency response areas of the neuron in the primary auditory cortex are various and might result from the same mechanisms.