saccades;
superior colliculus;
frontal eye fields;
parallel processing;
parallel programming;
D O I:
10.1016/j.visres.2005.12.009
中图分类号:
Q189 [神经科学];
学科分类号:
071006 ;
摘要:
A novel two-step paradigm was used to investigate the parallel programming of consecutive, stimulus-elicited ('reflexive') and endogenous ('voluntary') saccades. The mean latency of voluntary saccades, made following the first reflexive saccades in two-step conditions, was significantly reduced compared to that of voluntary saccades made in the single-step control trials. The latency of the first reflexive saccades was modulated by the requirement to make a second saccade: first saccade latency increased when a second voluntary saccade was required in the opposite direction to the first saccade, and decreased when a second saccade was required in the same direction as the first reflexive saccade. A second experiment confirmed the basic effect and also showed that a second reflexive saccade may be programmed in parallel with a first voluntary saccade. The results support the view that voluntary and reflexive saccades can be programmed in parallel on a common motor map. (c) 2006 Elsevier Ltd. All rights reserved.
机构:Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
Amador, N
;
Schlag-Rey, M
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
Schlag-Rey, M
;
Schlag, J
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
机构:
Univ London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England
Amlôt, R
;
Walker, R
论文数: 0引用数: 0
h-index: 0
机构:
Univ London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England
机构:Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
Amador, N
;
Schlag-Rey, M
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
Schlag-Rey, M
;
Schlag, J
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Los Angeles, Sch Med, Dept Neurobiol, Los Angeles, CA 90095 USA
机构:
Univ London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England
Amlôt, R
;
Walker, R
论文数: 0引用数: 0
h-index: 0
机构:
Univ London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England