写的 - Everyware Apps
1. A now widely studied putative marker for prenatal sex hormones exposure or, more precisely, for the relative exposure to testosterone compared to estrogens while in uterus, is the second-to-fourth digit ratio (2D:4D), that is the ratio between the index (2D) and the ring (4D) fingers.
2. Earlier studies that have stood the test of replication have reported that 2D:4D varies by sex and ethnicity but that male 2D:4D tends to be lower than female 2D:4D in all ethnic groups and the effect is strongest in the right hand.
3. While a number of failed replications have been reported, 2D:4D appears to be successfully associated with cognitive abilities, impulsivity, aggression and risk-taking, among other effects on personality and cognition.
4. Digit-ratio app is a tool to obtain anonymous measurements of digit ratios (2D:4D).
5. The objective of the research project is to collect anonymous measurements from multiple individuals.
6. The measurements and profile data may be sent to a server for research purposes.
7. These differences emerge prenatally and appear to be stable during the developing years.
8. No image will be sent.
或按照以下指南在PC上使用 :
选择你的电脑版本:
软件安装要求:
可直接下载。下载如下：
现在，打开已安装的模拟器应用程序并查找其搜索栏。一旦找到它，请键入 Digit Ratio 在搜索栏并按搜索。点击 Digit Ratio应用程序图标。一个 窗口 Digit Ratio 在Play商店或应用程序商店将打开并且它将在您的模拟器应用程序中显示商店。现在，按下安装按钮并像在iPhone或Android设备上一样，您的应用程序将开始下载。现在我们都完成了。
你会看到一个名为“所有应用程序”的图标。
点击它，它会带你到一个包含所有已安装应用程序的页面。
你应该看到 图标。点击它并开始使用该应用程序。
下载 Digit Ratio 对于Mac OS (Apple)
| 下载 | 开发人员 | 评论 | 评分 |
|---|---|---|---|
| Free 对于Mac OS | Everyware Apps | 2 | 1.50 |
在 Windows 11 上设置电脑和下载 Digit Ratio 应用的步骤:
PcMac China 
