Because I know where my hands?

How do we know our own hands? Scientists have taken a step closer to explaining this mystery.

According to Discovery News , Australian researchers have shown that, along with tactile and visual senses, the receptors in the muscles and joints also play a crucial role in cognitive development. owning helps the body to recognize our body belongs to . us. This finding is the basis for designing treatments for body-owning cognitive disorders accompanied by conditions such as stroke and seizures.

The team leader, expert Lee Walsh of Australian Neurology Research, says that we can identify our body parts as belonging to us completely by instinct.

However, how the brain draws a map of what belongs to it is still not fully explored. ' How do you know this hand is yours but not someone else's and that phone is not part of your body? "Mr. Wash said.

Previous research indicates that people can be fooled to take ownership of an artificial hand. This is done by simultaneously stroking the hidden hand and the visible artificial rubber hand of the object. ' Once the illusion of hand ownership is established, the subject has a physiological response to threats against that rubber hand, ' Walsh and colleagues wrote in the report.

In their research, the expert team wants to consider whether other sensory channels are important for developing ' body sovereignty '.

According to Walsh, we can use sight to see parts of the body, but we can also see other people's bodies, so vision alone cannot distinguish between body parts. outside with parts we own.

' Muscle receptors may signal what happens to the body so it may be an' ideal candidate 'to signal ownership, ' the Australian expert said.

To test this hypothesis, the team created an illusion of ownership for a plastic index finger. This finger is used because it has the ability to prevent tactile perception when under local anesthesia. Experts find that ownership awareness still occurs when the participant's finger is anesthetized.

The results show that visual and tactile signals cannot fully establish body ownership. Instead, signals related to muscles and joints combined with vision are enough for the brain to recognize ownership.

' The results clearly show that muscle receptors contribute to body ownership awareness. This is the first study to show that our brains use information from muscles to tell us where our bodies are and what is not. It's the basic thing to determine how the brain and body interact with each other so we can feel ourselves , 'the Australian expert asserts.

The study, published in the Journal of Physiology, also notes that the similarity between sensory stimuli plays an important role in controlling the sense of ownership.