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2012.10.16:CIB Researchers Discover Plasticity of Peripheral Auditory Frequency Sensitivity in Frog
 
 
    In some animals such as songbirds and frogs which use acoustic signals to communicate, the size and morphology of neuronal populations devoted to vocal production change seasonally due to fluctuations in hormone levels including gonadotropins.
 

    Studies have revealed dramatic changes in the size of brain areas, number and morphology of neurons across the different seasons. Although many studies have focused on morphological changes in the nervous system associated with seasonal or reproductive state changes in vertebrates, fewer have investigated neurophysiological  plasticity.

    In order to investigate the plasticity Dr. Cui and his colleagues revealed firstly that auditory sensitivity changes seasonally in Babina daunchina with greater sensitivity for both males and females occurring during the breeding season for frequency bands corresponding to the dominant frequency of male advertisement calls.

    The results demonstrated that peripheral auditory frequency sensitivity exhibits seasonal plasticity changes which may be adaptive to seasonal reproductive behavior in frogs. This study entitled "Plasticity of Peripheral Auditory Frequency Sensitivity in Emei Music Frog" was published in PLOS ONE on September 18, 2012. (http://dx.plos.org/10.1371/journal.pone.0045792).

Author contact: CUI, Jianguo Ph.D.
Tel: 86-13982148500

Fax: 86-28-8289 0288

E-mail: cuijg@cib.ac.cn