Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Lefthandedness. A New Interpretation.

Lefthandedness. A New Interpretation. The author discusses each of nine theories that have been advanced to explain the predominance of right-handedness, and finds none of them wholly satisfactory. The advantages of specialization of one member would account for handedness; the original impulse to prefer the right to the left hand is sought. Handedness is accompanied by a peculiarity of our vision: Sighting is by the right or left visual line, not the median line. Contiguous areas of the brain have assumed dominance in the control and correlation of precise vision, fine manual procedures, including writing, and the closely related function, speech. This observation is of value in determining native left-handedness which has become masked by the attempt to adjust handedness to the condition of the majority. A test of the eye used in sighting will, in most cases, reveal the perferred hand. The author has designed an apparatus for this purpose, and finds that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Lefthandedness. A New Interpretation.

JAMA , Volume 84 (16) – Apr 18, 1925

Lefthandedness. A New Interpretation.

Abstract


The author discusses each of nine theories that have been advanced to explain the predominance of right-handedness, and finds none of them wholly satisfactory. The advantages of specialization of one member would account for handedness; the original impulse to prefer the right to the left hand is sought. Handedness is accompanied by a peculiarity of our vision: Sighting is by the right or left visual line, not the median line. Contiguous areas of the brain have assumed dominance in...
Loading next page...
 
/lp/american-medical-association/lefthandedness-a-new-interpretation-klMVb2GTzC
Publisher
American Medical Association
Copyright
Copyright © 1925 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1925.02660420073028
Publisher site
See Article on Publisher Site

Abstract

The author discusses each of nine theories that have been advanced to explain the predominance of right-handedness, and finds none of them wholly satisfactory. The advantages of specialization of one member would account for handedness; the original impulse to prefer the right to the left hand is sought. Handedness is accompanied by a peculiarity of our vision: Sighting is by the right or left visual line, not the median line. Contiguous areas of the brain have assumed dominance in the control and correlation of precise vision, fine manual procedures, including writing, and the closely related function, speech. This observation is of value in determining native left-handedness which has become masked by the attempt to adjust handedness to the condition of the majority. A test of the eye used in sighting will, in most cases, reveal the perferred hand. The author has designed an apparatus for this purpose, and finds that

Journal

JAMAAmerican Medical Association

Published: Apr 18, 1925

There are no references for this article.