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Statements

Subject Item
n2:RIV%2F00216208%3A11110%2F13%3A10218699%21RIV15-MSM-11110___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1068/i0611
dcterms:description
Several studies have shown that visual recovery after blindness that occurs early in life is never complete. The current study investigated whether an extremely long period of blindness might also cause a permanent impairment of visual performance, even in a case of adult-onset blindness. We examined KP, a 71-year-old man who underwent a successful sight-restoring operation after 53 years of blindness. A set of psychophysical tests designed to assess KP's face perception, object recognition, and visual space perception abilities were conducted six months and eight months after the surgery. The results demonstrate that regardless of a lengthy period of normal vision and rich pre-accident perceptual experience, KP did not fully integrate this experience, and his visual performance remained greatly compromised. This was particularly evident when the tasks targeted finer levels of perceptual processing. In addition to the decreased robustness of his memory representations, which was hypothesized as the main factor determining visual impairment, other factors that may have affected KP's performance were considered, including compromised visual functions, problems with perceptual organization, deficits in the simultaneous processing of visual information, and reduced cognitive abilities. Several studies have shown that visual recovery after blindness that occurs early in life is never complete. The current study investigated whether an extremely long period of blindness might also cause a permanent impairment of visual performance, even in a case of adult-onset blindness. We examined KP, a 71-year-old man who underwent a successful sight-restoring operation after 53 years of blindness. A set of psychophysical tests designed to assess KP's face perception, object recognition, and visual space perception abilities were conducted six months and eight months after the surgery. The results demonstrate that regardless of a lengthy period of normal vision and rich pre-accident perceptual experience, KP did not fully integrate this experience, and his visual performance remained greatly compromised. This was particularly evident when the tasks targeted finer levels of perceptual processing. In addition to the decreased robustness of his memory representations, which was hypothesized as the main factor determining visual impairment, other factors that may have affected KP's performance were considered, including compromised visual functions, problems with perceptual organization, deficits in the simultaneous processing of visual information, and reduced cognitive abilities.
dcterms:title
Vision after 53 years of blindness Vision after 53 years of blindness
skos:prefLabel
Vision after 53 years of blindness Vision after 53 years of blindness
skos:notation
RIV/00216208:11110/13:10218699!RIV15-MSM-11110___
n3:aktivita
n16:P n16:I
n3:aktivity
I, P(GAP407/12/2528)
n3:cisloPeriodika
8
n3:dodaniDat
n7:2015
n3:domaciTvurceVysledku
n19:6327885
n3:druhVysledku
n17:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
114173
n3:idVysledku
RIV/00216208:11110/13:10218699
n3:jazykVysledku
n12:eng
n3:klicovaSlova
prosopagnosia; object agnosia; visual deprivation; blindness; sight recovery
n3:klicoveSlovo
n4:object%20agnosia n4:blindness n4:prosopagnosia n4:sight%20recovery n4:visual%20deprivation
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[8D30C769B317]
n3:nazevZdroje
I-PERCEPTION
n3:obor
n6:AN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
8
n3:projekt
n9:GAP407%2F12%2F2528
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
4
n3:tvurceVysledku
Bezdíček, Ondřej Stodůlka, Pavel Ostrovsky, Yuri Fine, Ione Porubanová-Norquist, Michaela Šimeček, Michal Šikl, Radovan Kremláček, Jan
n3:wos
000336568700003
s:issn
2041-6695
s:numberOfPages
10
n13:doi
10.1068/i0611
n14:organizacniJednotka
11110