How is the brain informed that a receptor is adapting to a stimulus?

When the receiver is adapting to a stimulus, the receiver decreases its polarization. This causes a decrease in frequencies that travel to the brain, informing the brain that the receptor is in the process of adapting.

Explanation:

Each neurotransmitter is programmed to respond to certain stimuli. To do so, they are endowed with receptors that recognize signaling molecules and send rapid responses to the brain. These molecules can be proteins, amino acids, hormones and various other substances. The moment it receives a stimulus, the receptors undergo a rapid adaptation period, at which point the receptor decreases its depolarization. This causes the frequency of signals that this receptor sends to the brain to be decreased, signaling to the brain that adaptation is taking place.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.