Studies of reversible perspective: A methodological review

The lack of an adequate theory of reversible perspective is largely attributable to the haphazard methodology adopted by many workers in this area of research. After more than 60 years, no standard experimental procedure has evolved, and the comparison of results from different studies is difficult. Some representative experiments are reviewed in terms of the temporal, stimulus, and procedural factors involved. It is suggested that the general use of the reversal rate measure is the major single barrier to progress, and that a continuous recording method be adopted in future experimentation.