Objective: A cross-sectional study was carried out to examine the pattern of changes in the capacity to coordinate attention between two simultaneously performed tasks in a group of 570 volunteers, from 5 to 17 years old. Method: The results revealed that the ability to coordinate attention increases with age, reaching adult values by age 15 years. Also, these results were compared with the performance in the same dual task of healthy elderly and Alzheimer disease (AD) patients found in a previous study. Results: The analysis indicated that AD patients showed a lower dual-tasking capacity than 5-year-old children, whereas the elderly presented a significantly higher ability than 5-year-old children and no significant differences with respect to young adults. Conclusion: These findings may suggest the presence of a working memory system’s mechanism that enables the division of attention, which is strengthened by the maturation of prefrontal cortex, and impaired in AD.
AlvarezJ. A.EmoryE. (2006). Executive function and frontal lobes: A meta-analytic review. Neuropsychology Review, 16, 17-42.
2.
AndersonM.BucksR. S.BaylissD. M.Della SalaS. (2011). Effect of age on dual-task performance in children and adults. Memory Cognition, 39, 1241-1252.
3.
AndersonP. (2002). Assessment and development of executive function during childhood. Child Neuropsychology, 8, 71-82.
4.
BaddeleyA. D. (1986). Working memory. Oxford, UK: Oxford University Press.
5.
BaddeleyA. D. (2000). The episodic buffer: A new component of working memory?Trends in Cognitive Sciences, 4, 417-423.
6.
BaddeleyA. D. (2001) Is Working memory still working?American Psychologist, 56, 849-864.
7.
BaddeleyA. D.BucksR. S.WilcockG. K. (2001). Attentional control in Alzheimer’s disease. Brain, 124, 1492-1508.
8.
BaddeleyA. D.EysenckM. W.AndersonM. C. (2009) Memory. Hove, UK: Psychology Press.
9.
BestJ. R.MillerP. H.JonesL. L. (2009). Executive functions after age 5: Changes and correlates. Developmental Review, 29, 180-200.
10.
BungeS. A.ZelazoP. D. (2006). A brain-based account of the development of rule use in childhood. Current Directions in Psychological Science, 15, 118-121.
11.
CaseyB. J.GieddJ. N.ThomasK. M. (2000). Structural and functional brain development and its relation to cognitive development. Biological Psychiatry, 54, 241-257.
12.
CepedaN. J.KramerA. F.Gonzalez de SatherJ. C. M. (2001). Changes in executive control across the life span: Examination of task-switching performance. Developmental Psychology, 37, 715-730.
13.
CowanN. (2005). Working memory capacity. Hove, UK: Psychology Press.
14.
Della SalaS.BaddeleyA. D.PapagnoC.SpinnlerH. (1995). Dual-task paradigm: A means to examine the central executive. Annals of the New York Academy of Sciences, 769, 161-172.
15.
Della SalaS.CochiniG.LogieR. H.AllerhandM.MacPhersonS. E. (2010). Dual task during encoding, maintenance and retrieval in Alzheimer’s disease. Journal of Alzheimer’s Disease, 19, 503-515.
16.
Della SalaS.FoleyJ. A.BeschinN.AllerhandM.LogieR. H. (2010). Assessing dual-task performance using a paper and a pencil test: Normative data. Archives of Clinical Neuropsychology, 25, 410-419.
17.
De LucaC. R.LeventerR. J. (2008). Developmental trajectories of executive functions across the lifespan. In AndersonV.JacobsR.AndersonP. J. (Eds.), Executive functions and the frontal lobes: A lifespan perspective (pp. 23-56). New York, NY: Psychology Press.
18.
DerfussJ.BrassM.NeumannJ.von CramonD. Y. (2005). Involvement of the inferior frontal junction in cognitive control: Meta-analyses of switching and Stroop studies. Human Brain Mapping, 25, 22-34.
19.
DiamondA. (2006). The early development of executive functions. In BialystokE.CraikF. I. M. (Eds.), Lifespan cognition: Mechanism of change (pp. 70-95). New York, NY: Oxford University Press.
20.
GuttentagR. E. (1989). Age differences in dual-task performance: Procedures, assumptions, and results. Developmental Review, 9, 146-170.
21.
HuizingaM.DolanC. V.van der MolenM. W. (2006). Age-related change in executive function. Developmental trends and a latent variable analysis. Neuropsychologia, 44, 2017-2036.
22.
Irwin-ChaseH.BurnsB. (2000). Developmental changes in children’s abilities to share and allocate attention in a dual task. Journal of Experimental Child Psychology, 77, 61-85.
23.
KarbachJ.KrayJ. (2007). Developmental changes in switching between mental task sets: The influence of verbal labeling in childhood. Journal of Cognition and Development, 8, 205-236.
24.
KrayJ.EberJ.LinderbergerU. (2004). Age differences in executive functioning across the lifespan: The role of verbalization in task preparation. Acta Psychologica, 115, 143-165.
25.
LevyJ.PashlerH.BoerE. (2006). Central interference in driving: Is there any stopping at the refractory period?Psychological Science, 17, 228-235.
26.
LogieR. H.CocchiniG.Della SalaS.BaddeleyA. (2004). Is there a specific executive capacity for dual task coordination? Evidence from Alzheimer’s disease. Neuropsychology, 18, 504-513.
27.
MacPhersonS. E.Della SalaS.LogieR. H.WilcockG. K. (2007). Specific AD impairment in concurrent performance of two memory tasks. Cortex, 43, 858-865.
28.
Naveh-BenjaminM.CraikF. I. M.GuezJ.KreugerS. (2005). Divided attention in younger and older adults: Effects of strategy and relatedness on memory performance and secondary costs. Journal of Experimental Psychology: Learning, Memory, and Cognition, 31, 520-537.
29.
PashlerH. (1994). Dual-task interference in simple tasks: Data and theory. Psychological Bulletin, 116, 220-244.
30.
ReimersS.MaylorE. A. (2005). Task switching across the life span: Effects of age on general and specific switch costs. Developmental Psychology, 41, 661-671.
31.
SebastianM. V.Hernández-GilL. (2012). Developmental pattern of digit span in Spanish population. Psicothema, 24, 183-187.
32.
SebastianM. V.MenorJ.ElosuaM. R. (2006). Attentional dysfunction of the central executive in AD: Evidence from dual task and perseveration errors. Cortex, 42, 1015-1020.
