Age-related changes in the allocation of vertical attention

Aleksandra Mańkowska , Kenneth M. Heilman , John B. Williamson , Michał Harciarek

Abstract

Objectives: Healthy individuals often have a leftward and upward attentional spatial bias; however, there is a reduction of this leftward bias with aging. The right hemisphere mediates leftward spatial attention and age-related reduction of right hemispheric activity may account for this reduced leftward bias. The right hemisphere also appears to be responsible for upward bias, and this upward bias might reduce with aging. Alternatively, whereas the dorsal visual stream allocates attention downward, the ventral stream allocates attention upward. Since with aging there is a greater atrophy of the dorsal than ventral stream, older participants may reveal a greater upward bias. The main purpose of this study was to learn if aging influences the vertical allocation of spatial attention. Methods: Twenty-six young (17 males; mean age 44.62±2.57 years) and 25 healthy elderly (13 males; mean age 72.04±.98 years), right-handed adults performed line bisections using 24 vertical lines (24 cm long and 2 mm thick) aligned with their midsagittal plane. Results: Older adults had a significantly greater upward bias than did younger adults. Conclusions: Normal upward attentional bias increases with aging, possibly due to an age-related reduction of the dorsal attentional stream that is responsible for the allocation of downward attention.
Publication typeIn press (online first, early view)
Author Aleksandra Mańkowska (FSS / IPsych)
Aleksandra Mańkowska,,
- Institute of Psychology
, Kenneth M. Heilman
Kenneth M. Heilman,,
-
, John B. Williamson
John B. Williamson,,
-
, Michał Harciarek (FSS / IPsych / DCPN)
Michał Harciarek,,
- Division of Clinical Psychology and Neuropsychology
Journal seriesJournal of the International Neuropsychological Society, ISSN 1355-6177, (A 30 pkt)
Issue year2018
Pages1-4
Publication size in sheets0.5
Keywords in Englishaging, right hemi-aging hypothesis, ventral and dorsal attentional networks, vertical line bisection, visual attention
DOIDOI:10.1017/S1355617718000620
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 30.0, 19-10-2018, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 19-10-2018, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.181 (2) - 2016=3.3 (5)
Citation count*
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back