![]() ![]() We conclude that our jackdaws' behaviour raises non-trivial questions about the methodology used in the avian mark test. However, jackdaws were not able to pass the mark test: both sticker-directed actions and sticker removal were performed with a similar frequency in both the cardboard (control) and the mirror conditions. We found that our nine jackdaws showed a very high interest towards the mirror and exhibited self-contingent behavior as soon as mirrors were introduced. Here, we have replicated the experimental design used on magpies to determine whether jackdaws ( Corvus monedula) are also capable of mirror self-recognition by passing the mark test. The results obtained in magpies have enormous biological and cognitive implications because the fact that magpies were able to pass the mark test meant that this species is at the same cognitive level with great apes, that mirror self-recognition has evolved independently in the magpie and great apes (which diverged 300 million years ago), and that the neocortex (which is not present in the bird's brains) is not a prerequisite for mirror self-recognition as previously believed. Mirror self-recognition capacity has been found in just a few mammals having very large brains and only in one bird, the magpie ( Pica pica). You're uncomfortable in your surroundings, leave immediately.Some animals are capable of recognizing themselves in a mirror, which is considered to be demonstrated by passing the mark test. To say there aren't other spying devices, such as hidden cameras also? If you're concerned, take a good look at the walls, counter, and ceilings as well as the mirror. Whilst it's always a good idea to be on the lookout for your own privacy and safety, if the mirror is actually two-way and someone is getting their cheap thrills, who's It appear separate from the wall? What's on the other side? ![]() I believe the best way to detect a real, one-way mirror would be to take a close look and use common sense. I don't think there'sĪnything to back up this theory. You're probably wondering if this is a true way to tell if the mirror is real, or if it is two-way and being used by some sicko Peeping Tom. ![]() Men: Share this with your wives, daughters, daughters-in law, mothers, girlfriends and/or friends.Įease give this wide dissemination!" Ladies: Share this with your girlfriends, sisters, daughters, etc. It doesn't cost you anything, it is simple to do, and it might save you from getting visually REMEMBER.every time you see a mirror, do the "fingernail test". However, if your fingernail DIRECTLY TOUCHES the image of your nail, then BEWARE, BECAUSE IT IS a 2-WAY MIRROR! any object) against the reflective surface and if there IS A GAP between yourįingernail and the image of the nail, then it is a GENUINE mirror. Just conduct this simple test: Place the tip of your fingernail (ball-point pen, eyebrow pencil. We determine with any amount of certainty what type of mirror we are looking at? It is very difficult to positively identify the surface by just looking at it. There have been many cases of people installing 2-way mirrors in female changing rooms. When we visit toilets, bathrooms, hotel rooms, changing rooms, etc., how many of you know for sure that the seemingly ordinary mirror hanging on the wall is a real mirror, orĪctually a 2-way mirror? (i.e., they can see you maybe taking pictures], but you can't see them). Try it with a 'regular' mirror, and you can easily see what the gap means. This is not to scare you, but to make you aware. #Double sided mirror test how to#Hi There - this is very interesting! A policewoman who travels all over the US and gives seminars and techniques for business women passed this on.ĭo you know how to determine if a mirror is 2-way or not? ![]()
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