Less-structured time in children's daily lives predicts self-directed executive functioning

Frontiers in Psychology

Volumn 5, Issue JUN, 2014, Pages

  Barker, Jane E ^a   Semenov, Andrei D ^a   Michaelson, Laura ^a   Provan, Lindsay S ^a   Snyder, Hannah R ^b   Munakata, Yuko ^a  

^a UNIVERSITY OF COLORADO   (United States)

^b UNIVERSITY OF DENVER   (United States)

Author keywords

Cognitive development; Leisure time; Self directed executive function; Unstructured activities; Verbal fluency

Indexed keywords

EID: 84904559624     PISSN: None     EISSN: 16641078     Source Type: Journal    
DOI: 10.3389/fpsyg.2014.00593     Document Type: Article

References (115)

1. Abwender, D. A., Swan, J. G., Bowerman, J. T., and Connolly, S. W. (2001). Qualitative analysis of verbal fluency output: review and comparison of several scoring methods. Assessment 8, 323-338. doi: 10.1177/107319110100800308
2. Agnew, R., and Petersen, D. M. (1989). Leisure and delinquency. Soc. Probl. 36, 332-350. doi: 10.2307/800819
3. Albertson, K., and Shore, C. (2009). Holding in mind conflicting information: pretending, working memory, and executive control. J. Cogn. Dev. 9, 390-410. doi: 10.1080/15248370802678240
4. Ardila, A., Pineda, D., and Rosselli, M. (2000). Correlation between intelligence test scores and executive function measures. Arch. Clin. Neuropsychol. 15, 31-36. doi: 10.1093/arclin/15.1.31
5. Bavelier, D., Green, C. S., and Dye, M. W. G. (2010). Children, wired: for better and worse. Neuron 67, 692-701. doi: 10.1016/j.neuron.2010.08.035
6. Bergman Nutley, S., Söderqvist, S., Bryde, S., Thorell, L. B., Humphreys, K., and Klingberg, T. (2011). Gains in fluid intelligence after training non-verbal reasoning in 4-year-old children: a controlled, randomized study. Dev. Sci. 14, 591-601. doi: 10.1111/j.1467-7687.2010.01022.x
7. Berns, G. S., Blaine, K., Prietula, M. J., and Pye, B. E. (2013). Short- and long-term effects of a novel on connectivity in the brain. Brain Connect. 3, 590-600. doi: 10.1089/brain.2013.0166
8. Best, J. R., Miller, P. H., and Naglieri, J. A. (2011). Relations between executive function and academic achievement from ages 5 to 17 in a large, representative national sample. Learn. Individ. Differ. 21, 327-336. doi: 10.1016/j.lindif.2011.01.007
9. Bianchi, S. M., Robinson, J. P., and Milkie, M. A. (2006). Changing Rhythms of American Family Life. ASA Rose Series. New York, NY: Sussell Sage.
10. Bierman, K. L., Nix, R. L., Greenberg, M. T., Blair, C., and Domitrovich, C. E. (2008). Executive functions and school readiness intervention: impact, moderation, and mediation in the Head Start REDI program. Dev. Psychopathol. 20, 821-843. doi: 10.1017/S0954579408000394
11. Birn, R. M., Kenworthy, L., Case, L., Caravella, R., Jones, T. B., Bandettini, P. A., et al. (2010). Neural systems supporting lexical search guided by letter and semantic category cues: a self-paced overt response fMRI study of verbal fluency. Neuroimage 49, 1099-1107. doi: 10.1016/j.neuroimage.2009.07.036
12. Blair, C., and Razza, R. P. (2007). Relating effortful control, executive function, and false belief understanding to emerging math and literacy ability in kindergarten. Child Dev. 78, 647-663. doi: 10.1111/j.1467-8624.2007.01019.x
13. Blair, C., Granger, D., and Peters Razza, R. (2005). Cortisol reactivity is positively related to executive function in preschool children attending Head Start. Child Dev. 76, 554-567. doi: 10.1111/j.1467-8624.2005.00863.x
14. Bodrova, E. (2003). Vygotsky and Montessori: one dream, two visions. Montessori Life 15, 30-33.
15. Bodrova, E., and Leong, D. J. (2007). Tools of the Mind. Columbus, OH: Pearson.
16. Braver, T. S., Gray, J. R., and Burgess, G. C. (2007). "Explaining the many varieties of working memory variation: dual mechanisms of cognitive control," in Variation in Working Memory, eds A. Conway, C. Jarrold, M. Kane, A. Miyake, and J. Towse (New York, NY: Oxford University Press), 76-106.
17. Brocki, K. C., and Bohlin, G. (2004). Executive functions in children aged 6 to 13: a dimensional and developmental study. Dev. Neuropsychol. 26, 571-593. doi: 10.1207/s15326942dn2602_3
18. Bryck, R. L., and Mayr, U. (2005). On the role of verbalization during task set selection: switching or serial order control? Mem. Cognit. 33, 611-623. doi: 10.3758/BF03195328
19. Brydges, C. R., Reid, C. L., Fox, A. M., and Anderson, M. (2012). A unitary executive function predicts intelligence in children. Intelligence 40, 458-469. doi: 10.1016/j.intell.2012.05.006
20. Cameron, C. E., Brock, L. L., Murrah, W. M., Bell, L. H., Worzalla, S. L., Grissmer, D., et al. (2012). Fine motor skills and executive function both contribute to kindergarten achievement. Child Dev. 83, 1229-1244. doi: 10.1111/j.1467-8624.2012.01768.x
21. Carlson, S. M., White, R. E., and Davis-Unger, A. (2014). Evidence for a relation between executive function and pretense representation in preschool children. Cogn. Dev. 29, 1-16. doi: 10.1016/j.cogdev.2013.09.001
22. Chatham, C. H., Frank, M. J., and Munakata, Y. (2009). Pupillometric and behavioral markers of a developmental shift in the temporal dynamics of cognitive control. Proc. Natl. Acad. Sci. U.S.A. 106, 5529-5533. doi: 10.1073/pnas.0810002106
23. Chevalier, N., Wiebe, S. A., Huber, K. L., and Espy, K. A. (2011). Switch detection in preschoolers' cognitive flexibility. J. Exp. Child Psychol. 109, 353-370. doi: 10.1016/j.jecp.2011.01.006
24. Chrysikou, E. G., and Thompson-Schill, S. L. (2011). Dissociable brain states linked to common and creative object use. Hum. Brain Mapp. 32, 665-675. doi: 10.1002/hbm.21056
25. Chua, A. (2011). Battle Hymn of the Tiger Mother. New York, NY: Penguin.
26. Connor, C. M., Ponitz, C. C., Phillips, B. M., Travis, Q., Glasney, S., and Morrison, F. J. (2010). First graders' literacy and self-regulation gains: the effect of individualizing student instruction. J. Sch. Psychol. 48, 433-455. doi: 10.1016/j.jsp.2010.06.003
27. Costafreda, S. G., Fu, C. H., Lee, L., Everitt, B., Brammer, M. J., and David, A. S. (2006). A systematic review and quantitative appraisal of fMRI studies of verbal fluency: role of the left inferior frontal gyrus. Hum. Brain Mapp. 27, 799-810. doi: 10.1002/hbm.20221
28. Daneman, M., and Merikle, P. M. (1996). Working memory and language comprehension: a meta-analysis. Psychon. Bull. Rev. 3, 422-433. doi: 10.3758/BF03214546
29. Dennis, M., Francis, D. J., Cirino, P. T., Schachar, R., Barnes, M. A., and Fletcher, J. M. (2009). Why IQ is not a covariate in cognitive studies of neurodevelopmental disorders. J. Int. Neuropsychol. Soc. 15, 331-343. doi: 10.1017/S1355617709090481
30. Diamond, A. (2012). Activities and programs that improve children's executive functions. Curr. Dir. Psychol. Sci. 21, 335-341. doi: 10.1177/0963721412453722
31. Diamond, A., Barnett, W. S., Thomas, J., and Munro, S. (2007). Preschool program improves cognitive control. Science 318, 1387-1388. doi: 10.1126/science.1151148
32. Diamond, A., and Lee, K. (2011). Interventions shown to aid executive function development in children 4-12 years old. Science 333, 959-964. doi: 10.1126/science.1204529
33. D'Ostilio, K., and Garraux, G. (2012). Dissociation between unconscious motor response facilitation and conflict in medial frontal areas. Eur. J. Neurosci. 35, 332-340. doi: 10.1111/j.1460-9568.2011.07941.x
34. Drane, D. L., Lee, G. P., Cech, H., Huthwaite, J. S., Ojemann, G. A., Ojemann, J. G., et al. (2006). Structured cueing on a semantic fluency task differentiates patients with temporal versus frontal lobe seizure onset. Epilepsy Behav. 9, 339-344. doi: 10.1016/j.yebeh.2006.06.010
35. Eccles, J. S., and Barber, B. (1999). Student council, volunteering, basketball, or marching band: what kind of extracurricular involvement matters? J. Adolesc. Res. 14, 10-34. doi: 10.1177/0743558499141003
36. Elias, C. L., and Berk, L. E. (2002). Self-regulation in young children: is there a role for sociodramatic play? Early Child. Res. Q. 17, 216-238. doi: 10.1016/S0885-2006(02)00146-1
37. Ellamil, M., Dobson, C., Beeman, M., and Christoff, K. (2012). Evaluative and generative modes of thought during the creative process. Neuroimage 59, 1783-1794. doi: 10.1016/j.neuroimage.2011.08.008
38. Engle, R. W., Tuholski, S. W., Laughlin, J. E., and Conway, A. R. (1999). Working memory, short-term memory, and general fluid intelligence: a latent-variable approach. J. Exp. Psychol. Gen. 128, 309-331. doi: 10.1037/0096-3445.128.3.309
39. Eriksen, C. W., and Schultz, D. W. (1979). Information processing in visual search: a continuous flow conception and experimental results. Percept. Psychophys. 25, 249-263. doi: 10.3758/BF03198804
40. Farah, M. J., Shera, D. M., Savage, J. H., Betancourt, L., Giannetta, J. M., Brodsky, N. L., et al. (2006). Childhood poverty: specific associations with neurocognitive development. Brain Res. 1110, 166-174. doi: 10.1016/j.brainres.2006.06.072
41. Fisher, A., Boyle, J. M., Paton, J. Y., Tomporowski, P., Watson, C., McColl, J. H., et al. (2011). Effects of a physical education intervention on cognitive function in young children: randomized controlled pilot study. BMC Pediatr. 11:97. doi: 10.1186/1471-2431-11-97
42. Fletcher, A. C., Nickerson, P., and Wright, K. L. (2003). Structured leisure activities in middle childhood: links to well-being. J. Community Psychol. 31, 641-659. doi: 10.1002/jcop.10075
43. Forstmann, B. U., Brass M., Koch, I., and von Cramon, D. Y. (2005). Internally generated and directly cued task sets: an investigation with fMRI. Neuropsychologia 43, 943-952. doi: 10.1016/j.neuropsychologia.2004.08.008
44. Gathercole, S. E., Pickering, S. J., Ambridge, B., and Wearing H. (2004). The structure of working memory from 4 to 15 years of age. Dev. Psychol. 40, 177-190. doi: 10.1037/0012-1649.40.2.177
45. Ginsburg, K. R. (2007). The importance of play in promoting healthy child development and maintaining strong parent-child bonds. Pediatrics 119, 182-191. doi: 10.1542/peds.2006-2697
46. Groborz, M., and Necka, E. (2003). Creativity and cognitive control: explorations of generation and evaluation skills. Creat. Res. J. 15, 183-197. doi: 10.1080/10400419.2003.9651411
47. Heckman, J. J., Moon. S. H., Pinto, R. P., Savelyev, A., and Yavitz, A. Q., (2010). The rate of return to the highscope perry preschool program. J. Public Econ. 94, 114-128. doi: 10.1016/j.jpubeco.2009.11.001
48. Henry, J. D., and Crawford, J. R. (2004). A meta-analytic review of verbal fluency performance following focal cortical lesions. Neuropsychology 18, 284. doi: 10.1037/0894-4105.18.2.284
49. Hirshorn, E. A., and Thompson-Schill, S. L. (2006). Role of the left inferior frontal gyrus in covert word retrieval: neural correlates of switching during verbal fluency. Neuropsychologia 44, 2547-2557. doi: 10.1016/j.neuropsychologia.2006.03.035
50. Hofferth, S. L. (2010). Home media and children's achievement and behavior. Child Dev. 81, 1598-1619. doi: 10.1111/j.1467-8624.2010.01494.x
51. Hofferth, S. L., and Sandberg, J. F. (2001a). Changes in American children's time, 1981-1997. Adv. Life Course Res. 6, 193-229. doi: 10.1016/S1040-2608(01)80011-3
52. Hofferth, S. L., and Sandberg, J. F. (2001b). How American children spend their time. J. Marriage Fam. 63, 295-308. doi: 10.1111/j.1741-3737.2001.00295.x
53. Holmes, J., Gathercole, S. E., and Dunning, D. L. (2009). Adaptive training leads to sustained enhancement of poor working memory in children. Dev. Sci. 12, 9-15. doi: 10.1111/j.1467-7687.2009.00848.x
54. Holmes, J., Gathercole, S. E., Place, M., Dunning, D. L., Hilton, K. A., and Elliott, J. G. (2010). Working memory deficits can be overcome: impacts of training and medication on working memory in children with ADHD. Appl. Cogn. Psychol. 24, 827-836. doi: 10.1002/acp.1589
55. Hughes, C., Ensor, R., Wilson, A., and Graham, A. (2009). Tracking executive function across the transition to school: a latent variable approach. Dev. Neuropsychol. 35, 20-36. doi: 10.1080/87565640903325691
56. Huizinga, M., Dolan, C. V., and van der Molen, M. W. (2006). Age-related change in executive function: developmental trends and a latent variable analysis. Neuropsychologia 44, 2017-2036. doi: 10.1016/j.neuropsychologia.2006.01.010
57. Iudicello, J. E., Kellogg, E. J., Weber, E., Smith, C., Grant, I., Drane, D. L., et al. (2012). Semantic cueing improves category verbal fluency in persons living with HIV infection. J. Neuropsychiatr. Clin. Neurosci. 24, 183-190. doi: 10.1176/appi.neuropsych.11100301
58. Jacques, S., and Zelazo, P. D. (2001). Developmental Neuropsychology The Flexible Item Selection Task (FIST): a measure of executive function in preschoolers. Dev. Neuropsychol. 20, 573-591. doi: 10.1207/S15326942DN2003_2
59. Jarosz, A. F., Colflesh, G. J., and Wiley, J. (2012). Uncorking the muse: alcohol intoxication facilitates creative problem solving. Conscious. Cogn. 21, 487-493. doi: 10.1016/j.concog.2012.01.002
60. Johnson, G. M. (2010). Children's Internet use at home and school: patterns and profiles. J. Early Child. Res. 8, 282-293. doi: 10.1177/1476718X10379783
61. Kalkut, E. L., Han, S. D., Lansing, A. E., Holdnack, J. A. and Delis, D. C. (2009). Development of set-shifting ability from late childhood through early adulthood. Arch. Clin. Neuropsychol. 24, 565-574. doi: 10.1093/arclin/acp048
62. Kave, G., Kigel, S., and Kochva, R. (2008). Switching and clustering in verbal fluency tasks throughout childhood. J. Clin. Exp. Neuropsychol. 30, 349-359. doi: 10.1080/13803390701416197
63. Kelly, R., Hammond, S., Dissanayake, C., and Ihsen, E. (2011). The relationship between symbolic play and executive function in young children. Australas. J. Early Child. 36, 1-27.
64. Koren, R., Kofman, O., and Berger, A. (2005). Analysis of word clustering in verbal fluency of school-aged children. Arch. Clin. Neuropsychol. 20, 1087-1104. doi: 10.1016/j.acn.2005.06.012
65. Larson, R. W. (2001). How US children and adolescents spend time: what it does (and doesn't) tell us about their development. Curr. Dir. Psychol. Sci. 10, 160-164. doi: 10.1111/1467-8721.00139
66. Larson, R. W., and Verma, S. (1999). How children and adolescents spend time across the world: work, play, and developmental opportunities. Psychol. Bull. 125, 701-736. doi: 10.1037/0033-2909.125.6.701
67. Lavie, N. (1995). Perceptual load as a necessary condition for selective attention. J. Exp. Psychol. 21, 451-468. doi: 10.1037/0096-1523.21.3.451
68. Lie, C., Specht, K., Marshall, J., and Fink, G. (2006). Using fMRI to decompose the neural processes underlying the Wisconsin Card Sorting Test. Neuroimage 30, 1038-1049. doi: 10.1016/j.neuroimage.2005.10.031
69. Lillard, A., and Else-quest, N. (2006). Evaluating montessori education. Science 313, 1893-1894. doi: 10.1126/science.1132362
70. Lillard, A. S. (2012). Preschool children's development in classic Montessori, supplemented Montessori, and conventional programs. J. Sch. Psychol. 50, 379-401. doi: 10.1016/j.jsp.2012.01.001
71. Lillard, A. S., Lerner, M. D., Hopkins, E. J., Dore, R. A., Smith, E. D., and Palmquist, C. M. (2013). The impact of pretend play on children's development: a review of the evidence. Psychol. Bull. 139, 1-34. doi: 10.1037/a0029321
72. Liu-Ambrose, T., Nagamatsu, L. S., Voss, M. W., Khan, K. M., and Handy, T. C. (2012). Resistance training and functional plasticity of the aging brain: a 12-month randomized controlled trial. Neurobiol. Aging 33, 1690-1698. doi: 10.1016/j.neurobiolaging.2011.05.010
73. Mackey, A. P., Singley A. T. M., and Bunge S. A. (2013). Intensive reasoning training alters patterns of brain connectivity at rest. J. Neurosci. 33, 4796-4803. doi: 10.1523/JNEUROSCI.4141-12.2013
74. Mahone, M. E., Hagelthorn, K. M., Cutting, L. E., Schuerholz, L. J., Pelletier, S. F., Rawlins, C., et al. (2002). Effects of IQ on executive function measures in children with ADHD. Child Neuropsychol. 8, 52-65. doi: 10.1076/chin.8.1.52.8719
75. Mahoney, J. L., and Stattin, H. (2000). Leisure activities and adolescent antisocial behavior: the role of structure and social context. J. Adolesc. 23, 113-127. doi: 10.1006/jado.2000.0302
76. McAuley, T., Christ, S. E., and White, D. A. (2011). Mapping the development of response inhibition in young children using a modified day-night task. Dev. Neuropsychol. 36, 539-551. doi: 10.1080/87565641.2010.549871
77. McDermott, J. M., Pérez-Edgar, K., and Fox, N. A. (2007). Variations of the flanker paradigm: assessing selective attention in young children. Behav. Res. Methods 39, 62-70. doi: 10.3758/BF03192844
78. Meeks, C. B., and Mauldin, T. (1990). Children's time in structured and unstructured leisure activities. Lifestyles Fam. Econ. Issues 11, 257-281. doi: 10.1007/BF00987003
79. Miller, G. (2012). The smartphone psychology manifesto. Perspect. Psychol. Sci. 7, 221-237. doi: 10.1177/1745691612441215
80. Miller, M. R., Müller, U., Giesbrecht, G. F., Carpendale, J. I. M., and Kerns, K. A. (2013). The contribution of executive function and social understanding to preschoolers' letter and math skills. Cogn. Dev. 28, 331-349. doi: 10.1016/j.cogdev.2012.10.005
81. Milteer, R. M., and Ginsburg, K. R. (2012). The importance of play in promoting healthy child development and maintaining strong parent-child bond: focus on children in poverty. Pediatrics 129, 204-213. doi: 10.1542/peds.2011-2953
82. Moffitt, T. E., Arseneault, L., Belsky, D., Dickson, N., Hancox, R. J., Harrington, H., et al. (2011). A gradient of childhood self-control predicts health, wealth, and public safety. Proc. Natl. Acad. Sci. U.S.A. 108, 2693-2698. doi: 10.1073/pnas.1010076108
83. Montessori, M. M. Jr. (1976). Education for Human Development: Understanding Montessori. New York, NY: Schocken.
84. Munakata, Y., Snyder, H. R., and Chatham, C. H. (2012). Developing cognitive control: three key transitions. Curr. Dir. Psychol. Sci. 21, 71-77. doi: 10.1177/0963721412436807
85. Noble, K. G., McCandliss, B. D., and Farah, M. J. (2007). Socioeconomic gradients predict individual differences in neurocognitive abilities. Dev. Sci. 10, 464-480. doi: 10.1111/j.1467-7687.2007.00600.x
86. Noble, K. G., Norman, M. F., and Farah, M. J. (2005). Neurocognitive correlates of socioeconomic status in kindergarten children. Dev. Sci. 8, 74-87. doi: 10.1111/j.1467-7687.2005.00394.x
87. Osgood, D. W., Anderson, A. L., and Shaffer, J. N. (2005). "Unstructured leisure in the after-school hours," in Organized Activities as Contexts of Development: Extracurricular Activities, After-school and Community Programs, eds J. L. Mahoney, R. W. Larson, J. S. Eccles (Mahwah, NJ: Erlbaum), 45-64.
88. Paquet, L. (2001). Eliminating flanker effects and negative priming in the flankers task: evidence for early selection. Psychon. Bull. Rev. 8, 301-306. doi: 10.3758/BF03196165
89. Raboutet, C., Sauzéon, H., Corsini, M. M., Rodrigues, J., Langevin, S., and N'Kaoua, B. (2010). Performance on a semantic verbal fluency task across time: dissociation between clustering, switching, and categorical exploitation processes. J. Clin. Exp. Neuropsychol. 32, 268-280. doi: 10.1080/13803390902984464
90. Ramdass, D., and Zimmerman, B. J. (2011). Developing self-regulation skills: the important role of homework. J. Adv. Acad. 22, 194-218. doi: 10.1177/1932202X1102200202
91. Randolph, C., Braun, A. R., Goldberg, T. E., and Chase, T. N. (1993). Semantic fluency in Alzheimer's, Parkinson's, and Huntington's disease: dissociation of storage and retrieval failures. Neuropsychology 7, 82-88. doi: 10.1037/0894-4105.7.1.82
92. Raver, C. C., Blair, C., and Willoughby, M. (2013). Poverty as a predictor of 4-year-olds' executive function: new perspectives on models of differential susceptibility. Dev. Psychol. 49, 292-304. doi: 10.1037/a0028343
93. Ridderinkhof, K. R., and van der Molen, M. W. (1995). A psychophysiological analysis of developmental differences in the ability to resist interference. Child Dev. 66, 1040-1056. doi: 10.2307/1131797
94. Röthlisberger, M., Neuenschwander, R., Cimeli, P., Michel, E., and Roebers, C. M. (2012). Improving executive function in 5- and 6-year-olds: evaluation of a small group intervention in prekindergarten and kindergarten children. Infant Child Dev. 21, 411-429. doi: 10.1002/icd.752
95. Rueda, M. R., Checa, P., and Cómbita, L. M. (2012). Enhanced efficiency of the executive attention network after training in preschool children: immediate changes and effects after two months. Dev. Cogn. Neurosci. 2, S192-S204. doi: 10.1016/j.dcn.2011.09.004
96. Rueda, M. R., Fan, J., McCandliss, B. D., Halparin, J. D., Gruber, D. B., Lercari, L. P., et al. (2004). Development of attentional networks in childhood. Neuropsychologia 42, 1029-1040. doi: 10.1016/j.neuropsychologia.2003.12.012
97. Rueda, M. R., Rothbart, M. K., McCandliss, B. D., Saccomanno, L., and Posner, M. I. (2005). Training, maturation, and genetic influences on the development of executive attention. Proc. Natl. Acad. Sci. U.S.A. 102, 14931-14936. doi: 10.1073/pnas.0506897102
98. Sauzéon, H., Lestage, P., Raboutet, C., N'Kaoua, B., and Claverie, B. (2004). Verbal fluency output in children aged 7-16 as a function of the production criterion: qualitative analysis of clustering, switching processes, and semantic network exploitation. Brain Lang. 89, 192-202. doi: 10.1016/S0093-934X(03)00367-5
99. Schweinhart, L. J., Montie, J., Xiang, Z., Barnett, W. S., Belfield, C. R., and Nores, M. (2005). Lifetime Effects: The High/Scope Perry Preschool study Through age 40 (Monographs of the High/Scope Educational Research Foundation, 14). Ypsilanti, MI: High/Scope Press.
100. Shipstead, Z., Redick, T. S., and Engle, R. W. (2012). Is working memory training effective? Psychol. Bull. 138, 628-654. doi: 10.1037/a0027473
101. Smidts, D. P., Jacobs, R., and Anderson, V. (2004). The Object Classification Task for Children (OCTC): a measure of concept generation and mental flexibility in early childhood. Dev. Neuropsychol. 26, 385-401. doi: 10.1207/s15326942dn2601_2
102. Snyder, H. R., and Munakata, Y. (2010). Becoming self-directed: abstract representations support endogenous flexibility in children. Cognition 116, 155-167. doi: 10.1016/j.cognition.2010.04.007
103. Snyder, H. R., and Munakata, Y. (2013). So many options, so little control: abstract representations can reduce selection demands to increase children's self-directed flexibility. J. Exp. Child Psychol. 116, 659-673. doi: 10.1016/j.jecp.2013.07.010
104. St Clair-Thompson, H. L., and Gathercole, S. E. (2006). Executive functions and achievements in school: shifting, updating, inhibition, and working memory. Q. J. Exp. Psychol. 59, 745-759. doi: 10.1080/17470210500162854
105. Thorell, L. B., Lindqvist, S., Bergman Nutley, S., Bohlin, G., and Klingberg, T. (2009). Training and transfer effects of executive functions in preschool children. Dev. Sci. 12, 106-113. doi: 10.1111/j.1467-7687.2008.00745.x
106. Titz, C., and Karbach, J. (2014). Working memory and executive functions: effects of training on academic achievement. Psychol. Res. doi: 10.1007/s00426-013-0537-1. [Epub ahead of print].
107. Tremblay, P., and Gracco, V. L. (2006). Contribution of the frontal lobe to externally and internally specified verbal responses: fMRI evidence. Neuroimage 33, 947-957. doi: 10.1016/j.neuroimage.2006.07.041
108. Troyer, A. K., Moscovitch, M., and Winocur, G. (1997). Clustering and switching as two components of verbal fluency: evidence from younger and older healthy adults. Neuropsychology 11, 138-146. doi: 10.1037/0894-4105.11.1.138
109. Troyer, A. K., Moscovitch, M., Winocur, G., Alexander, M. P., and Stuss, D. (1998). Clustering and switching on verbal fluency: the effects of focal frontal- and temporal-lobe lesions. Neuropsychologia 36, 499-504. doi: 10.1016/S0028-3932(97)00152-8
110. Unsworth, N., Spillers, G. J., and Brewer, G. A. (2010). Variation in verbal fluency: a latent variable analysis of clustering, switching, and overall performance. Q. J. Exp. Psychol. 64, 447-466. doi: 10.1080/17470218.2010.505292
111. Vandewater, E. A., Rideout, V. J., Wartella, E. A., Huang, X., and Shim, M. (2007). Digital childhood: electronic media and technology use among infants, toddlers, and preschoolers. Pediatrics 119, 1006-1015. doi: 10.1542/peds.2006-1804
112. Vygotsky, L. S. (1967). Play and its role in the mental development of the child. Soviet Psychology. 7, 6-18.
113. Welsh, M. C., Pennington, B. F., and Groisser, D. B. (1991). A normative-developmental study of executive function: a window on prefrontal function in children. Dev. Neuropsychol. 7, 131-149. doi: 10.1080/87565649109540483
114. Zelazo, P. D., Carlson, S. M., and Kesek, A. (2008). "The development of executive function in childhood," in Handbook of Developmental Cognitive Neuroscience, 2nd Edn. eds C. Nelson and M. Luciana (Cambridge, MA: MIT Press), 553-574.
115. Zelazo, P. D., and Lyons, K. E. (2012). The potential benefits of mindfulness training in early childhood: a developmental social cognitive neuroscience perspective. Child Dev. Perspect. 6, 154-160. doi: 10.1111/j.1750-8606.2012.00241.x