Hi, I'm not sure if I know exactly what "arousal" means (english is not my main language).
What I mean by arousal is that feeling that you like what you see (or hear). Even if you "hate the fact that you like it".
The reason I'm asking this is because, much like most of you, I've tested myself literally thousands of times (with masturbation or just thinking) and very rarely actually got hard or anything, ...