国立研究開発法人 国際農林水産業研究センター | JIRCAS

Development of an Eye Camera for Measuring Eyelid and Eyeball Movements in Domestic Animals

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

The analysis of the resting behavior of domestic animals must include the analysis of eyelid and eyeball movements and bodily motion. We developed an apparatus for measuring the movement of eyelids and eyeballs of domestic animals. The apparatus consists of a charge-coupled device (CCD) camera placed in the eyelid region of a head mask, and an infrared light-emitting diode as light source. Two types of apparatus have been developed: one, using a wire system and the other, using a measurable telemetry system in an unrestricted state. The weight of the device with the wire system was about 50 g and that with the telemetry system was about 880 g. The operating time of the telem etry system was 24 h or more when nickel-hydrogen was used in the power supply. By using the wire system in calf, the movements of the eyelid and eyeball could be divided into four categories: fully open eyelid movement, half-closed eyelid movement, fully closed eyelid movement and eyeball movement. The results showed that the time of half-closed eyelids and fully closed eyelids while the animal was lying down was longest from midnight to 7:00 a.m. and eyelids were half-closed or fully closed even during rumination. In the horse, the telemetry system device could be used continuously without discomfort for 24 h. Comparison of the eyelid movement and cortex brain waves, showed that the power spectrum of the cerebral cortex brain waves in an animal lying down with a half-open eyelid mainly consisted of δ waves while when the animal was standing with a fully open eyelid, α waves also appeared.

刊行年月2000-10-01
作成者Tetsu NEMOTO Toshiyuki SAITO Etsuko KASUYA Yoshifumi HONDA Masato NAKAMURA Toshiyo KOBAYASHI Wenxi CHEN Issey TAMADA Ryo KUSUNOSE Makoto KAI
データ作成日2000-10-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
34
4
開始ページ271
終了ページ277
言語eng