A Caltech Library Service

Target Selection for Reaching and Saccades Share a Similar Behavioral Reference Frame in the Macaque

Scherberger, Hansjörg and Goodale, Melvyn A. and Andersen, Richard A. (2003) Target Selection for Reaching and Saccades Share a Similar Behavioral Reference Frame in the Macaque. Journal of Neurophysiology, 89 (3). pp. 1456-1466. ISSN 0022-3077. doi:10.1152/jn.00883.2002.

[img] PDF - Accepted Version
See Usage Policy.


Use this Persistent URL to link to this item:


The selection of one of two visual stimuli as a target for a motor action may depend on external as well as internal variables. We examined whether the preference to select a leftward or rightward target depends on the action that is performed (eye or arm movement) and to what extent the choice is influenced by the target location. Two targets were presented at the same distance to the left and right of a fixation position and the stimulus onset asynchrony (SOA) was adjusted until both targets were selected equally often. This balanced SOA time is then a quantitative measure of selection preference. In two macaque monkeys tested, we found the balanced SOA shifted to the left side for left-arm movements and to the right side for right-arm movements. Target selection strongly depended on the horizontal target location. By varying eye, head, and trunk position, we found this dependency embedded in a head-centered behavioral reference frame for saccade targets and, somewhat counter-intuitively, for reach targets as well. Target selection for reach movements was influenced by the eye position, while saccade target selection was unaffected by the arm position. These findings suggest that the neural processes underlying target selection for a reaching movement are to a large extent independent of the coordinate frame ultimately used to make the limb movement, but are instead closely linked to the coordinate frame used to plan a saccade to that target. This similarity may be indicative of a common spatial framework for hand-eye coordination.

Item Type:Article
Related URLs:
URLURL TypeDescription
Andersen, Richard A.0000-0002-7947-0472
Additional Information:© 2003 The American Physiological Society. Received 30 October 2002; Accepted 18 November 2002; Published online 1 March 2003; Published in print 1 March 2003. We thank L. Snyder for support on the recording software, B. Gillikin and K. Weaver for animal care, C. Marks for administrative help, and V. Shcherbatyuk for technical support. This work was supported by the Christopher Reeve Paralysis Foundation, a Caltech Gosney Fellowship, and the National Eye Institute.
Funding AgencyGrant Number
Christopher Reeve Paralysis FoundationUNSPECIFIED
Caltech Gosney FellowshipUNSPECIFIED
National Eye InstituteUNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20200401-092310278
Persistent URL:
Official Citation:Target Selection for Reaching and Saccades Share a Similar Behavioral Reference Frame in the Macaque. Hansjörg Scherberger, Melvyn A. Goodale, and Richard A. Andersen. Journal of Neurophysiology 2003 89:3, 1456-1466; doi: 10.1152/jn.00883.2002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102228
Deposited By: Tony Diaz
Deposited On:01 Apr 2020 16:33
Last Modified:16 Nov 2021 18:10

Repository Staff Only: item control page