In the history of the psychology of perception few matters have been of more continuous interest than the relationship between perceived size and perceived distance. It is our objective to examine the current status of this question by reviewing the recent literature. With some exceptions our review will be confined to investigations which have been reported since 1952. Several surveys of the literature prior to 1952 are available, and for this reason we will have relatively little to say about these earlier investigations (reviews can be found in

The intended use of the test is as a shorter and economical method of screening for organic brain damage. The test was routinely administered to all patients admitted to a Veterans Administration hospital. There are no positive findings to indicate value in distinguishing between psychosis and brain damage. Age and IQ factors need to be considered. Relationships between IQ, method of establishing diagnosis, and Trail Making scores need further study.