[Development of standard psychological values for measuring brain performance at different ages under normal and pathological aspects (author's transl)].

The studies have shown that especially those tests that put the person tested under intense time pressure (d2 test and Pauli test) are suited for detecting diminished brain performance caused by cerebrovascular and other defects. The d2 test has proved to be the most sensitive and at the same time the most economical one (5 min). On the other hand the findings made by Löwe, Eitner et al. show that ageing people suffering from cerebrovascular disease but still able to work should be assigned work that requires a great deal of care rather than work that has to be done under time pressure. The determination of the flicker fusion frequency is seen in literature as a measure of vigilance. But the influences are of a very complex nature. We have found no correlation between the tests conducted by us, the attention test, the concentration pattern test and the Pauli test.