Distantly, he became aware of nociception, though lost to a sudden tactile agnosia, did not immediately recognise the source.

It is a form of tactile agnosia in which an individual is unable to identify objects by handling them, despite intact sensation.

Pick's studies introduced autotopagnosia and other category specific agnosias, such as visual and tactile agnosia.

Since Wade test in essence, mimics a temporary lesion of the dominant cortex, other side effects such as astereognosis, Gerstmann syndrome, alexia, agraphia, tactile agnosia (bimanual astereognosis), ideomotor apraxia, and ideational apraxia is possible.