Interactions of the horizontal and vertical human oculomotor systems: the saccadic systems.

نویسندگان

  • R Feinstein
  • W J Williams
چکیده

The human oculomotor system has been studied by numerous people for well overhalf a century. Since the visual system is our primary sensory input channel, it is important forus to know how information is processed by the system. Most of the previous work on eye move-ments has been on modeling the horizontal eye movement control system.In the present series of experiments, human subjects were given the task of tracking a spotof light which moved both horizontally and vertically. The temporal relationship of the hori-zontal and vertical eye movements was recorded using a light reflection technique. The resultsof these experiments indicate that the horizontal and vertical saccadic systems are complexlyinterrelated. The phenomenon of the Psychological Refractory Period was observed. Theinteraction of the orthogonal saccadic systems may be due to visual information being pro-cessed in a parallel manner and motor activity being mediated by a serial processing stage. R&um;&-De nombreuses ttudes ont BtB consacr&s; au systkme oculomoteur humain depuisbien plus d’undemi sible. Comme le systi?me visuel est notre principale source d’informationsensorielle, il nous importe de connaitre le traitement de l’information dans ce systkme. Laplupart des travaux ant6ieurs sur les mouvements des yeux ont recherche un modble du sys-t&me; de cantrole du mouvement horizontal de l’oeil.Dans la serie pr&sente; d’exp&iences;, les sujets humains devaient suivre un point lumineuxqui se dkplwait ?I la fois horizontalement et verticalement. On enregistrait par une techniquede &flexion; de lumikre la relation temporelle des mouvements des yeux horizontaux et verti-caux. Les exp&iences; indiquent une interrelation complexe entre les systkmes de saccadeshorizontal et vertical. On observe le ph&om;≠ de Pkriode Rbfractaire Psychologique.L’interaction des systemes orthogonaux de saccades est peutQtre due & un parall8isme dans letraitement de l’information visuelle, tandis que l’activitk motrice est engendrk par un processuss6iel. ROBERT FEINSTEINAND WILLIAM J. WILLIAMS Zusammenfassung-Das okulomotorische System des Menschen wurde an zahlreichen Personenfiber gut ein halbes Jahrhundert untersucht. Da das visuelle System der Anfang unseres senso-rischen ICanals ist, ist es fiir uns wichtig zu w&en;, wie Information vom System iibertragen wird. Die meisten der friiheren Arbeiten iiber Augen~we~~en 6~~r~ften die Horizontal-bewegung des Auges.In den voriiegenden Experimenten hatten die Versuchspersonen die Aufgabe, horizontalund vertikal bewegten Lichtpunkten zu folgen. Uber Reflexionsmessungen wurde die zeitlicheAbhangigkeit der horizontalen und vertikalen Augenbewegungen aufgezeichnet. Es ergab sich,daB die horizontalen und vertikalen Sakkaden in komplizierter Weise miteinander verkniipftsind. Das w&de; das Phgnomen der psychologischen Refractgrperiode beobachtet. Die Wech-selwirkung des zueinander senkrechten Sakkadensystems ktinnte visuelle Information aufparallele We&e; und motorische Aktivitst in einer seriellen ProzeBfoIge hervorrufen. PesloMe OKynoMoropHaa cHcTeMa senoaeKa wsyganacb hm0rnM.n nccneAosarennMa aYeYemie 60~1ee SeM IIOJICICTOJI~TWI.nOCKOJIbKy 3pEiTeJIbaaa CHcTeMa 5IBjDIeVDI IIamHM OCHOBIibIMCeIiCOpHbIMBXOABLbIMKaIiaJIOM,AAR HaCBaaK30 3HaTb XaK IIepeAae%H IiH~OpMaI@UI3TOii CECTeM0t-k ~OJIbIIIEHcTBOnpeAIlIeCTByIOII$EXpa6oT MO~‘3ISipOBWi%i KOIiTJ3OJlbH)‘H) CriCTeMyrOp~O~~HOr0 ABSZCeHE5IrlIa3a.B Hacrorrmea cepsf53 3Kcriepm4enToe, ~cnbITyeMbIM-n~AaM 6arna npeAno2zceIia saaaqa CneAETb 3a CBeTOBbIMNIMOM, KOTOpOe ABWxeTCRXaK B rOpIi30IfaJIMIOM, TaK Ii B BepTEKa-JIbHOM HaIIpaBneHEUIX. BpeMemIbIe COOTHOIIIeHHIIrOpH30HTZUIbHbIX II BepTHKaJIbHbIX ABAxteH& I’JIa3 perEICTpEipOBaJ5iCbC nOMOLLIbKlTeXNaKHCBeTOBOrOOTpaaeHIiII. Pe3yJl&TaTbI;~TEX 3KcrIepaMemoB noKa3bIBaIoT, YTO rop5i30HmnbIiaaH BepTmcamHaa c.aIcKaAzx%Kar CHCTeMbI HaXOAXTCa B CJIO~IiMX MaHMOOTHOIJEHH5IX.Ha6nIoAmcR &HOMeH; nCEXOJIOr-u~ec~oro MpaKTepnoro neprroAa. B3a~Mo~e~c~~e opToroHanbHbIx ca~~aAsi~CIiCl-eMMOxeT AaBZtTb3pmmEfyIO shopman~~K~O~py~~ap~~e~H0,a RBI#i%TeJlbHaii PKTEBHoCTb6yAeT OnOCpeAOBaTbCIICepUefi +a3 3TOrO IIpOIIeOZ.

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عنوان ژورنال:
  • Vision research

دوره 12 1  شماره 

صفحات  -

تاریخ انتشار 1972