An everview of the theorizations and experimentations on the inhibitory phenomena has been attempted. The, historical perspective in developing the concept of inhibition and the research, both in comparative and human fields, is presented to work out a system, as it is today. Inhibition as opposed to excitation acts as a preventive checking or hindering process. Which may be regarded as falling on end points. Its significance in research and formidable position in theorization, as elucidated by the present review and the elaborate bibliography is suggesting enough about the stimulating and dynamic status of the inhibition, as a concept in psychology.