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Neural properties of fundamental function encoding of sound selectivity in the female avian auditory cortex
Author(s) -
Inda Masahiro,
Hotta Kohji,
Oka Kotaro
Publication year - 2020
Publication title -
european journal of neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 206
eISSN - 1460-9568
pISSN - 0953-816X
DOI - 10.1111/ejn.14616
Subject(s) - taeniopygia , auditory cortex , correlation , encoding (memory) , neuroscience , auditory perception , biology , psychology , speech recognition , zebra finch , perception , computer science , mathematics , geometry
Zebra finches ( Taeniopygia guttata ) use their voices for communication. Song structures in the songs of individual males are important for sound recognition in females. The caudomedial mesopallium (CMM) and nidopallium (NCM) are known to be essential higher auditory regions for sound recognition. These two regions have also been discussed with respect to their fundamental functions and song selectivity. To clarify their functions and selectivity, we investigated latencies and spiking patterns and also developed a novel correlation analysis to evaluate the relationship between neural activity and the characteristics of acoustic factors. We found that the latencies and spiking patterns in response to song stimuli differed between the CMM and NCM. In addition, our correlation analysis revealed that amplitude and frequency structures were important temporal acoustic factors for both regions. Although the CMM and NCM have different fundamental functions, they share similar encoding systems for acoustic factors.