Hand preference and hand of performance effects on visual centering tasks.
Item
-
Title
-
Hand preference and hand of performance effects on visual centering tasks.
-
Identifier
-
AAI8914786
-
identifier
-
8914786
-
Creator
-
Scarisbrick, David John.
-
Contributor
-
Adviser: J. R. Tweedy
-
Date
-
1988
-
Language
-
English
-
Publisher
-
City University of New York.
-
Subject
-
Psychology, Experimental | Psychology, Clinical | Psychology, Psychometrics
-
Abstract
-
The present thesis examined how left- and right-handers differ on several visuospatial centering tasks, and discussed the implications of these results regarding right hemisphere brain organization in left- and right-handers. Twenty-four left- and 24 right-hander males participated in a horizontal and vertical line and arrow bisection, and a two-dimensional centering task using both the left and right hands. In addition, all subjects completed an horizontal line bisection discrimination task.;When required to produce an estimate of center, both left- and right-handers, placed their estimates to the left of true center in the horizontal domain and above true center in the vertical range. In addition, left hand performances were always left of right hand performances in the horizontal domain in both left- and right-handers. The results of the bisection discrimination task demonstrated a slight leftward bias on long lines and a slight rightward bias on medium and short lines, regardless of hand preference. These results are best interpreted using an hemispheric specialization and motor activation model. In addition, the results favor similar right hemisphere organization in left- and right-handers.
-
Type
-
dissertation
-
Source
-
PQT Legacy CUNY.xlsx
-
degree
-
Ph.D.
