Through the courtesy and kind co-operation of Dr. Charles H. Judd,
in charge of the Yale Psychological Laboratory, these students were
subjected to the same careful tests during the five months of their
experiment as were applied to the soldier detail. The results which are
presented in the following report, kindly prepared by Dr. Judd, indicate
quite clearly that there was no general nervous change in the reactors
as a result of the low proteid diet. The data presented by Dr. Judd in
this connection will be found in the accompanying tables, which, while
indicating no noticeable improvement in the nervous condition of the men,
make it quite plain that no deterioration whatever occurred as the result
of the lowered proteid metabolism.