There is more to pain than just injury

Pain is an indicator of injury, but not always. Some things like sunburn initially don't hurt. It only starts to hurt when our skin cells begin to die.

A more dramatic example is radiation exposure. It doesn't hurt while a person is exposed because they can only feel what the sensory nervo...

Nociception is often a part of the experience of pain, but it is not pain. It is not sufficient nor necessary for pain, for example, when we consider the pain of depression or grief.

So tissue damage can happen without pain, and pain can occur without tissue damage, and nociception that se...

Activity in the neurons that responds to injury is called nociception. It allows us to recognise and label different kinds of damaging stimuli, such as slamming your hand in the door or burning it on a stove.

Researchers wanted to observe what happens in the brain when we're exposed to dam...