Vigilance and iconic memory in children at high risk for alcoholism.: An article from: Journal of Studies on Alcohol
Book Description
This digital document is an article from Journal of Studies on Alcohol, published by Alcohol Research Documentation, Inc. on July 1, 1997. The length of the article is 6114 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser...
MoreThis digital document is an article from Journal of Studies on Alcohol, published by Alcohol Research Documentation, Inc. on July 1, 1997. The length of the article is 6114 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Objective: Previous studies report reduced visual event-related potential (ERP) amplitudes in young males at high risk for alcoholism. These findings could involve difficulties at several stages of visual processing. This study was aimed at examining vigilance performance and iconic memory functions in children at high risk or low risk for alcoholism. Method: Sustained vigilance and retrieval from iconic memory were evaluated in 54 (29 male) white children at high risk and 47 (25 male) white children at low risk for developing alcoholism. Children were also grouped according to gender and age (younger: 8-12 years; older: 13-18 years). Results: No differences in visual sensitivity, response criterion or reaction time were associated with risk status on the degraded visual stimulus version of the Continuous Performance Test. For the Span of Apprehension, no differences were found due to risk status when only 1 or 5 distractors were presented, although with 9 distractors a significant effect of risk status was found when it was tested as an interaction with gender and age (decreased accuracy for older high-risk boys compared to older low-risk boys). Conclusions: These findings suggest that ERP deviations are not attributable to stages of visual processing deficits, but represent difficulty involving more complex utilization of information. Implications of these results are that the differences between high- and low-risk children that have been reported previously for visual ERP components (e.g., P300) are not attributable to deficits of attentional or iconic memory mechanisms.
From the supplier: Having an alcoholic family member does not appear to significantly affect children's visual attention. Results of a series of computer-generated visual tests were compared for 54 children at high-risk for developing alcoholism and 47 low-risk children. Overall, there were no significant differences in vision, reaction times, or distractibility between the two groups. However, older high-risk boys were more easily distracted than older low-risk boys when tested at maximum distractibility levels.
Citation Details
Title: Vigilance and iconic memory in children at high risk for alcoholism.
Author: Stuart R. Steinhauer
Publication: Journal of Studies on Alcohol (Refereed)
Date: July 1, 1997
Publisher: Alcohol Research Documentation, Inc.
Volume: v58 Issue: n4 Page: p428(7)
Distributed by Thomson Gale
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