377) Attentional control is important both for learning to read and for performing difficult reading tasks. |
PMID:24275830 DOI:10.1093/cercor/bht313 |
2015 Cerebral cortex (New York, N.Y. : 1991) |
* Separable roles for attentional control sub-systems in reading tasks: a combined behavioral and fMRI study. |
- Attentional control is important both for learning to read and for performing difficult reading tasks. A previous study invoked 2 mechanisms to explain reaction time (RT) differences between reading tasks with variable attentional demands. The present study combined behavioral and neuroimaging measures to test the hypotheses that there are 2 mechanisms of interaction between attentional control and reading; that these mechanisms are dissociable both behaviorally and neuro-anatomically; and that the 2 mechanisms involve functionally separable control systems. First, RT evidence was found in support of the 2-mechanism model, corroborating the previous study. Next, 2 sets of brain regions were identified as showing functional magnetic resonance imaging blood oxygen level-dependent activity that maps onto the 2-mechanism distinction. One set included bilateral Cingulo-opercular regions and mostly right-lateralized Dorsal Attention regions (CO/DA+). This CO/DA+ region set showed response properties consistent with a role in reporting which processing pathway (phonological or lexical) was biased for a particular trial. A second set was composed primarily of left-lateralized Frontal-parietal (FP) regions. Its signal properties were consistent with a role in response checking. These results demonstrate how the subcomponents of attentional control interact with subcomponents of reading processes in healthy young adults. |
(1)65 role | (16)4 data | (31)2 alternative | (46)2 indicator |
(2)37 for | (17)4 differences | (32)2 aspect | (47)2 mechanism |
(3)34 to | (18)3 approach | (33)2 baseline | (48)2 model |
(4)28 in | (19)3 causes | (34)2 because | (49)2 molecular |
(5)15 implications | (20)3 clinical | (35)2 bivalve, | (50)2 not |
(6)11 factor | (21)3 findings | (36)2 complication | (51)2 pathogen |
(7)9 *null* | (22)3 genes | (37)2 components | (52)2 phenomenon |
(8)9 and | (23)3 health | (38)2 consequences | (53)2 physiological |
(9)8 determinants | (24)3 human | (39)2 contributor | (54)2 protective |
(10)8 roles | (25)3 insights | (40)2 coping | (55)2 route |
(11)7 factors | (26)3 policy | (41)2 determinant | (56)2 standard |
(12)6 cause | (27)3 predictors | (42)2 economic | (57)2 step |
(13)5 component | (28)3 public | (43)2 element | (58)2 strategic |
(14)5 risk | (29)3 when | (44)2 fish | (59)2 subset |
(15)4 as | (30)2 DNA | (45)2 function | (60)2 target |
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