8021668

Source:http://linkedlifedata.com/resource/pubmed/id/8021668

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0021420, umls-concept:C0085094, umls-concept:C0205082, umls-concept:C0234621, umls-concept:C0439780, umls-concept:C0439781, umls-concept:C0700301, umls-concept:C1280500
pubmed:issue	7
pubmed:dateCreated	1994-8-4
pubmed:abstractText	Three tachistoscopic tasks were employed to assess whether survivors of severe closed head injury (CHI) exhibit a disturbance of information processing within peripheral and/or central visual pathways. Twelve survivors of severe CHI and 12 individually matched control subjects completed a recognition threshold (no mask) task, a monoptic, forward masking by visual noise task (to assess processing within relatively peripheral pathways), and a dichoptic, backward masking by pattern task (to assess processing within central pathways). For each experimental procedure, the minimum exposure durations required by subjects to identify correctly single consonants and triple consonants were determined. Survivors of severe CHI showed deficits on all three visual tasks. Both groups also had higher threshold durations for the more complex stimuli (triple v single consonants), but differences in threshold were greater in the patients with CHI. The degree of perceptual impairment exhibited by patients with CHI was highly variable and not consistently related to injury characteristics or residual motor or speech and language impairment.
pubmed:grant	http://linkedlifedata.com/resource/pubmed/grant/NS-21889
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-1249407, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-3165209, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-3745415, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-4136544, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-4689202, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-4889566, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-538209, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-6227701, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-6461719, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-6491183, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-660098, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-660209, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-7107946, http://linkedlifedata.com/resource/pubmed/commentcorrection/8021668-766038
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/2985191R
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Jul
pubmed:issn	0022-3050
pubmed:author	pubmed-author:BreitmeyerB GBG, pubmed-author:LevinH SHS, pubmed-author:MattsonA JAJ
pubmed:issnType	Print
pubmed:volume	57
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	818-24
pubmed:dateRevised	2009-11-18
pubmed:meshHeading	pubmed-meshheading:8021668-Adult, pubmed-meshheading:8021668-Brain Injuries, pubmed-meshheading:8021668-Female, pubmed-meshheading:8021668-Humans, pubmed-meshheading:8021668-Male, pubmed-meshheading:8021668-Neuropsychological Tests, pubmed-meshheading:8021668-Pattern Recognition, Visual
pubmed:year	1994
pubmed:articleTitle	Visual information processing after severe closed head injury: effects of forward and backward masking.
pubmed:affiliation	Division of Neurosurgery, University of Texas Medical Branch, Galveston.
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't