Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | NASA-CR-169314, NAS 1.26:169314 |
| 来源ID | NTRS_Document_ID: 19820025087 |
| The influence of varied gravito-inertial fields on the cardiac response of orb-weaving spiders | |
| Finck, A. | |
| 英文摘要 | The Gz transfer function was described for the orb weaving spider A. sericatus. The functional relationship between the heartrate and the intensity of G is linear in the form of: Y = a Log Gz-1 +k. The heartrate in unrestrained animals was recorded by a laser plethysmograph developed specifically for this purpose. Following a control, sample heartrate were taken postrotation between 1.001 and 1.5 Gz in 6 steps. The underlying distribution of heartrates does not appear significantly different from a Gaussian distribution. A method of varnishing the legs of the spider was developed. This was done in order to compromise the lyriform organs, especially those located on the patellae. The lyriform organ is hypothesized to serve the receptor role in the transduction of gravity related stimuli. In preliminary animals the Gz function, post varnishing of the patellae, appears to be changed in the direction of poorer discrimination. We also observed that the resting heartrate following the varnish procedure is substantially increased. |
| 英文关键词 | GRAVITATIONAL EFFECTS HEART RATE TRANSFER FUNCTIONS CENTRIFUGING STRESS PLETHYSMOGRAPHY SPIDERS STATISTICAL ANALYSIS |
| 出版年 | 1982 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19820025087 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258927 |
| 推荐引用方式 GB/T 7714 | Finck, A.. The influence of varied gravito-inertial fields on the cardiac response of orb-weaving spiders,1982. |
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