Zobrazeno 1 - 10
of 99
pro vyhledávání: '"David L. Sparks"'
Publikováno v:
Experimental Brain Research. 189:35-47
Constant frequency microstimulation of the paramedian pontine reticular formation (PPRF) in head-restrained monkeys evokes a constant velocity eye movement. Since the PPRF receives significant projections from structures that control coordinated eye-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a2826e7ee78a5f6c70cd930492f404
https://doi.org/10.1007/s00221-008-1401-1
https://doi.org/10.1007/s00221-008-1401-1
Publikováno v:
Journal of Neurophysiology. 93:2354-2358
When humans or monkeys are asked to make saccades to visual targets accompanied by one or more distractors, the two dimensional trajectory of the saccade will sometimes display significant curvature. Port and Wurtz used dual electrode recordings to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08f26dbf4a15ba893e3714c455c04932
https://doi.org/10.1152/jn.01199.2004
https://doi.org/10.1152/jn.01199.2004
Autor:
Neeraj J. Gandhi, David L. Sparks
Publikováno v:
Vision Research. 41(25-26):3243-3254
A coordinated movement of the eyes and head in the head-unrestrained condition is often used to change orientation between targets. Under natural conditions, these gaze shifts are typically generated with the eyes roughly centered in the orbits. To a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce4be900c76ebf608ece6fe13f7e0ce1
Publikováno v:
Vision Research. 41(25-26):3295-3305
This paper summarizes recent experiments conducted by the authors — experiments that studied the behavioral characteristics of large gaze shifts and the neural bases of coordinated movements of the eyes and head.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce23cbba78255819ccfc9b1545177679
Autor:
Ellen J. Barton, David L. Sparks
Publikováno v:
Vision Research. 41(18):2393-2406
Remembered saccades of rhesus monkeys are markedly influenced by starting eye position. Altering the initial position systematically affects the direction or amplitude of the movements to a striking degree. In general, changes in the horizontal or ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94cd69ae766e08aaa81b49029053c843
Publikováno v:
Journal of Neuroscience Methods. 107:81-85
A method for constructing a simple, durable injection-microelectrode (injectrode) is described. The injectrode can record neuronal activity, stimulate neuronal tissues, or inject substances locally through its tip. The injectrode is lightweight and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b132a04bd03667ec27df83d2ceb22eb0
https://doi.org/10.1016/s0165-0270(01)00354-5
https://doi.org/10.1016/s0165-0270(01)00354-5
Autor:
David L. Sparks
Publikováno v:
Current Opinion in Neurobiology. 9:698-707
Various conceptual issues have been brought into focus by recent experiments studying the role of the superior colliculus in the control of coordinated movements of the eyes and head, the interaction of saccadic and vergence movements, and cognitive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d575a62762c7cb5a21a593274c2255c
https://doi.org/10.1016/s0959-4388(99)00039-2
https://doi.org/10.1016/s0959-4388(99)00039-2
Autor:
David L. Sparks, Edward G. Freedman
Publikováno v:
Journal of Neurophysiology. 77:2328-2348
Freedman, Edward G. and David L. Sparks. Eye-head coordination during head-unrestrained gaze shifts in rhesus monkeys. J. Neurophysiol. 77: 2328–2348, 1997. We analyzed gaze shifts made by trained rhesus monkeys with completely unrestrained heads d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::629b1cde1856d8a57417aaea468fca6c
https://doi.org/10.1152/jn.1997.77.5.2328
https://doi.org/10.1152/jn.1997.77.5.2328
Autor:
Rimas P. Kalesnykas, David L. Sparks
Publikováno v:
The Neuroscientist. 2:284-292
The superior colliculus is a brainstem structure playing a critical role in orienting movements of the head, pinnae, and eyes. The superior colliculus acts as an important intermediary between sensory and motor signals, issuing motor commands that ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13468ec96c69e0236cbfbae44b2db5fb
https://doi.org/10.1177/107385849600200514
https://doi.org/10.1177/107385849600200514
Publikováno v:
Journal of Neurophysiology. 76:927-952
1. We electrically stimulated the intermediate and deep layers of the superior colliculus (SC) in two rhesus macaques free to move their heads both vertically and horizontally (head unrestrained). Stimulation of the primate SC can elicit high-velocit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cacdfc45ffe4504d1f41f71d24e7af48
https://doi.org/10.1152/jn.1996.76.2.927
https://doi.org/10.1152/jn.1996.76.2.927