Forms of Simple Stimulus Learning Essay Example | Topics and Well Written Essays - 1250 words - 1

Forms of Simple Stimulus Learning - Essay Example It is the most fundamental, individual way to reduce the unnecessary excitability of nervous system. Habituation appears after the multiple systematic repetitions of a particular stimulus. If it is not threatening life and body, after many perceptions of a stimulus, reaction decreases steadily. It depends on the frequency of repetitions until complete disappearance of the reaction. In other words, we "learn" do not react to stimuli, which do not cause any harm to us.   For example, a person, living in the vicinity of a railway, stops responding to the noise of passing trains very soon. Though, at first, the noise was annoying enough and interfered with sleeping. The same way, we get used to the sounds of the clock and flowing water, to billboards and road signs. The stimuli are no longer come to our consciousness. Perceiving familiar stimuli as common things, we just ignore them. For us, such adaptation means getting a state, where we can recognize easily new, important stimuli among the multiplicity of familiar, insignificant ones.  Ã‚   The reaction of habituation does not mean getting fatigue or tiredness of receptors. After the development of habituation, the nervous system continues perceiving a stimulus; just it needs a little effort to cause reaction immediately.   In nature, habituation is represented widely: from primitive creatures up to human beings. It provides an adequate reaction of a body to eliminate all superfluous, unnecessary perceptions, maintaining just reactions to the most important key stimuli. Such adaptation of nervous system saves lots of energy for an organism.