SPECTROTEMPORAL RECEPTIVE-FIELDS OF NEURONS IN COCHLEAR NUCLEUS OF GUINEA-PIG
SPECTROTEMPORAL RECEPTIVE-FIELDS OF NEURONS IN COCHLEAR NUCLEUS OF GUINEA-PIG
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DOI：
10.1016/0378-5955(91)90023-3
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发表时间：
1991-04-01
期刊：
影响因子：
2.8
通讯作者：
BACKOFF, PM
中科院分区：
文献类型：
--
作者：
CLOPTON, BM;BACKOFF, PM
谱时感受野（STRF）[爱马仕等人，听Res. 5，147-178，1981]的豚鼠耳蜗核（CN）中神经元。 16个周期段的频带限制，合成噪声诱发的可复制的，独特的尖峰放电周期直方图。 在CN的主要部门，其特征频率（CF）内的噪声带宽限制的所有驱动单元具有独特的STRF为一个给定的强度的噪声刺激。 STRF最大值对应于该单位的CF，STRF模式的细节在CN划分和来自音爆的响应类别上有所不同。 这种哺乳动物的STRF中特征的大小在其时间和光谱范围上明显小于两栖动物的隆突中报道的那些，并且与猫腹侧CN报道的少数单位大致相当[Eggermont等人，夸脱。生物物理学16，341-414，1983]。 STRF，因为他们是目前获得的，提供了有用的洞察传入处理的某些方面，也许连接，但他们的解释是特定的刺激水平和需要选择一个特定的能量分布来代表刺激的限制。
Spectrotemporal receptive fields (STRFs) [Hermes et al., Hear. Res. 5, 147-178, 1981] for neurons in the cochlear nuclei (CN) of guinea pig were estimated. Sixteen periodic segments of bandlimited, synthesized noise evoked replicable, distinctive period histograms for spike discharges. All driven units in the major divisions of the CN having their characteristic frequency (CF) within the noise bandlimits had unique STRFs for a given intensity of noise stimulation. The STRF maximum corresponded to the unit's CF, and details of the STRF patterns differed over CN divisions and response classes derived from tonebursts. The sizes of features in STRFs from this mammal appeared significantly smaller in their temporal and spectral extents than those reported in the torus semicircularis of an amphibian and were roughly comparable to the few units reported from cat ventral CN [Eggermont et al., Quart. Rev. Biophys. 16, 341-414, 1983]. STRFs, as they are presently obtained, provide useful insight into some aspects of afferent processing and perhaps connectivity, but their interpretation is specific to the level of stimulation and limited by the need to choose a specific energy distribution to represent the stimulus.