Psühholoogia areng Eestis
Allik 2002
skilled and understanding helper and produced a number of well invented and
carefully planned machines for various investigations. Luckily, I found a lot of keen,
self-sacrificing students prepared to devote many, many months' work solely to their
doctorate theses. Thus, studies were made, which brought important new findings with
them; for example the work by Michelson on the depth of sleep, individual psychology
by Oehrn, time sense by Eyner, contrast sensitivity with perception of spacee by
Higier and the diversion of attention by Bertels. Difficulties to overcome on the
technical side were often considerable and I constantly admired the patience of the
youngsters in withstanding all these obstacles. Sometimes, the physicist Arthur von
Oettingengave gave us his kind advice." (Kraepelin, 1987, pp. 44-45).