TY  - JOUR
PY  - 2014//
TI  - When does tool use become distinctively human? Hammering in young children
JO  - Child development
A1  - Kahrs, Björn Alexander
A1  - Jung, Wendy P.
A1  - Lockman, Jeffrey J.
SP  - 1050
EP  - 1061
VL  - 85
IS  - 3
N2  - This study examines the development of hammering within an ontogenetic and evolutionary framework using motion-capture technology. Twenty-four right-handed toddlers (19-35 months) wore reflective markers while hammering a peg into a peg-board. The study focuses on the motor characteristics that make tool use uniquely human: wrist involvement, lateralization, and handle use. Older children showed more distally controlled movements, characterized by relatively more reliance on the wrist, but only when hammering with their right hand. Greater age, use of the right hand, and more wrist involvement were associated with higher accuracy; handle use did not systematically change with age. Collectively, the results provide new insights about the emergence of hammering in young children and when hammering begins to manifest distinctively human characteristics.<p />  <p>Language: en</p>
LA  - en
SN  - 0009-3920
UR  - http://dx.doi.org/10.1111/cdev.12179
ID  - ref1
ER  -