Archaeologists have long linked ancient tool use to the beginning of human history. Homo habilis, the theory goes, was the "handy man" who used tools and served as the intermediary species between the ...

Manual dexterity is a vital motor skill associated with the normal development of the neural and motor systems and demonstrates their coordination. Children who show deficits in this skill require ...

A century and a half ago, Frederick Engels, in an unpublished 1876 essay titled, The Part Played by Labor in the Transition From Ape to Man (International Publishers 1950), identified the evolution of ...

Tsukuba, Japan—Among the many harmful effects of aging, a decline in hand dexterity can lead to difficulties in the performance of daily activities, such as writing, cooking, gardening, craftwork, and ...

Performance on a manual dexterity test can act as an objective behavior marker that can aid in detecting the prodromal stage of patients with Parkinson disease. Performance on a manual dexterity test ...