Scalf Paige E, Colcombe Stanley J, McCarley Jason S, Erickson Kirk I, Alvarado Maritza, Kim Jenny S, Wadhwa Ruchika P, Kramer Arthur F
Beckman Institute and Department of Psychology, University of Illinois at Urbana-Champaign, 405 N. Mathews, Urbana, IL 61801, USA.
J Gerontol B Psychol Sci Soc Sci. 2007 Jun;62 Spec No 1:32-44. doi: 10.1093/geronb/62.special_issue_1.32.
The size of the functional field of view (FFOV) predicts driving safety in older adults ( Owsley et al., 1998), and practice-related changes in the FFOV may transfer to driving safety ( Roenker, Cissell, Ball, Wadley, & Edwards, 2003). We used functional magnetic resonance imaging (fMRI) and behavioral measures to examine how practice with the FFOV task changes older adults' attentional function. Behavioral data collected outside of the MRI revealed that participants in the training group showed larger improvements across conditions than did those in the control group. fMRI data revealed training-related changes in activation in a number of brain regions. In the right precentral gyrus and right inferior frontal gyrus, increases in activation between fMRI sessions correlated positively with increases in accuracy between behavioral sessions. Practice with the FFOV task improves older adults' attentional function by increasing their recruitment of regions traditionally associated with orienting visual attention.
功能性视野（FFOV）的大小可预测老年人的驾驶安全性（奥兹利等人，1998年），并且FFOV中与练习相关的变化可能会转化为驾驶安全性（罗恩克、西塞尔、鲍尔、瓦德利和爱德华兹，2003年）。我们使用功能磁共振成像（fMRI）和行为测量方法来研究FFOV任务练习如何改变老年人的注意力功能。在MRI之外收集的行为数据显示，训练组的参与者在各种条件下的改善比对照组的参与者更大。fMRI数据显示，多个脑区的激活出现了与训练相关的变化。在右侧中央前回和右侧额下回，fMRI各次扫描之间激活的增加与行为各次测试之间准确性的增加呈正相关。通过增加对传统上与定向视觉注意力相关区域的调动，FFOV任务练习可改善老年人的注意力功能。
