Visual cortical responses to the input from the amblyopic eye are suppressed during binocular viewing
  • Metaadatok
Tartalom: http://real.mtak.hu/72408/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
Visual cortical responses to the input from the amblyopic eye are suppressed during binocular viewing
Létrehozó:
Körtvélyes, Judit
Bankó, Éva
Andics, A.
Rudas, G.
NĂ©meth, J.
Hermann, Petra
Vidnyánszky, Z.
Kiadó:
Akadémiai Kiadó
Dátum:
2012
info:eu-repo/date/embargoEnd/2032-03-31
Téma:
QH Natural history / természetrajz
Tartalmi leírás:
Amblyopia is a visual disorder caused by an anomalous early visual experience. It has been suggested that suppression of the visual input from the weaker eye might be a primary underlying mechanism of the amblyopic syndrome. However, it is still an unresolved question to what extent neural responses to the visual information coming from the amblyopic eye are suppressed during binocular viewing. To address this question we measured event-related potentials (ERP) to foveal face stimuli in amblyopic patients, both in monocular and binocular viewing conditions. The results revealed no difference in the amplitude and latency of early components of the ERP responses between the binocular and fellow eye stimulation. On the other hand, early ERP components were reduced and delayed in the case of monocular stimulation of the amblyopic eye as compared to the fellow eye stimulation or to binocular viewing. The magnitude of the amblyopic effect measured on the ERP amplitudes was comparable to that found on the fMRI responses in the fusiform face area using the same face stimuli and task conditions. Our findings showing that the amblyopic effects present on the early ERP components in the case of monocular stimulation are not manifested in the ERP responses during binocular viewing suggest that input from the amblyopic eye is completely suppressed already at the earliest stages of visual cortical processing when stimuli are viewed by both eyes.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Körtvélyes, Judit and Bankó, Éva and Andics, A. and Rudas, G. and Németh, J. and Hermann, Petra and Vidnyánszky, Z. (2012) Visual cortical responses to the input from the amblyopic eye are suppressed during binocular viewing. Acta Biologica Hungarica, 63 (Supple). pp. 65-79. ISSN 0236-5383
Kapcsolat:
https://doi.org/10.1556/ABiol.63.2012.Suppl.1.7
Létrehozó:
info:eu-repo/semantics/embargoedAccess