Background. The aim of the study was to assess relations among psychomotor speed, speed of
searching from semantic memory and aging using simple bedside tests.
Methods and Results.We included 95 healthy volunteers with mean age 45.8 ± 17 years (min. 20, max.
80 years) to this study. We measured time in the short version of semantic fluency test (recite 12 animals)
and in 2 tests of psychomotor tempo. We detected significant slowing in all tests (ANOVA, p < 0.001)
Conclusions. Slowing of psychomotor speed and searching in semantic memory were detected during
physiological aging. Further research is necessary to clarify, if these fast and easy tests will be useful in
screening for dementia in clinical practice.
psychomotor speed, semantic fluency, information-processing, neuropsychology, aging.