Mechanisms for behavioral release by audio-visual stimuli: Research on avian song system model

视听刺激的行为释放机制：鸟类鸣叫系统模型研究

• 批准号: 11610068
• 负责人: OKANOYA Kazuo
• 金额: $ 2.18万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11610068/
• 关键词: Vision; Audition; Audio-visual integration; Operant discrimination; Gene expression; Bengalese finches; Zebra finches; Telencephalon; 複合刺激; 即初期遺伝子; エストラジオール; 鳥類; 行動解発; 視床; 情報統合

During the last year of this project we examined the process of audio-visual integration by means of two strategies. First, we studied anatomical basis of audio-visual integration by means of gene expression. In zebra finches and Bengalese finches, males appear to females with dance and song. By presenting sound and images independently with a TFT video and a speaker, we examined the patterns of gene expression in the forebrain of the finches. After the stimulation brains were processed with immunocytochemistry.Results indicated that more gene expressions were observed in NCL when stimulated with vision alone, but with sound alone NCM and cHV had more gene expressions. With audio-visual compound stimuli, gene expression decrease in NCL, suggesting that audio-visual integration occurring at the level of NCL.Next we used operant discrimination training with audio-visual compound stimuli. Females and males differed in the way they integrate auditory and visual stimuli : males did integrated them while female mainly relied on visual information. This tendency was more pronounced when biological stimuli (i.e., sound and image of conspecific bird singing) than when artificial (i.e., pure tones, nose, and geometric figures) were used.In summary, while audio-visual stimuli are processed at the level of telencephalon at NCL, artificial and natural stimuli undergo different levels of processing.

在这个项目的最后一年，我们通过两种策略研究了视听融合的过程。首先，我们从基因表达的角度研究了视听整合的解剖学基础。在斑胸草雀和孟加拉草雀中，雄性会以舞蹈和歌声出现在雌性面前。通过用TFT视频和扬声器独立地呈现声音和图像，我们研究了雀类前脑中的基因表达模式。结果表明，在单纯视觉刺激时，NCL基因表达量增加，而在单纯声音刺激时，NCM和cHV基因表达量增加。在视听复合刺激下，NCL基因表达降低，提示视听整合发生在NCL水平。女性和男性在整合听觉和视觉刺激的方式上存在差异：男性确实整合了听觉和视觉刺激，而女性主要依赖视觉信息。当生物刺激（即，同种鸟类歌唱的声音和图像）比人工的（即，综上所述，虽然视听刺激在NCL的端脑水平进行处理，但人工和自然刺激经历不同水平的处理。

项目成果

岡ノ谷一夫,高橋美樹,池渕万季: "ジュウシマツのオスの歌行動を誘発するメスの刺激特性"動物心理学研究. 50・2. 271 (2000)

Kazuo Okanoya、Miki Takahashi、Maki Ikebuchi：“诱发雄性日本松树歌唱行为的刺激特征”动物心理学研究 50・2（2000）。

佐藤敏正,池渕万季,岡ノ谷一夫: "鳥類における自種・他種の求愛行動に対するメスの反応と性ホルモン分泌量の変化"Annual Meeting of Japanese Avian Endocrinology. 25. 19-20 (2000)

Toshimasa Sato、Maki Ikebuchi、Kazuo Okanoya：“雌性对自身和其他物种求爱行为的反应以及鸟类性激素分泌的变化”日本鸟类内分泌学年会 25. 19-20 (2000)。