The symphonic structure of childhood stress reactivity: Patterns of sympathetic, parasympathetic, and adrenocortical responses to psychological challenge

Development and Psychopathology

Volumn 26, Issue 4, 2014, Pages 963-982

  Quas, Jodi A ^a   Yim, Ilona S ^a   Oberlander, Tim F ^b   Nordstokke, David ^b   Essex, Marilyn J ^c   Armstrong, Jeffrey M ^c   Bush, Nicole ^d   Obradović, Jelena ^e   Boyce, W Thomas ^d  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF BRITISH COLUMBIA   (Canada)

^c UNIVERSITY OF WISCONSIN MADISON   (United States)

^d UNIVERSITY OF CALIFORNIA   (United States)

^e STANFORD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ADRENERGIC SYSTEM; AGE; AROUSAL; CHILD; CHILD DEVELOPMENT; CHOLINERGIC SYSTEM; FEMALE; HUMAN; HYPOPHYSIS ADRENAL SYSTEM; HYPOTHALAMUS HYPOPHYSIS SYSTEM; LONGITUDINAL STUDY; MALE; MENTAL STRESS; PATHOPHYSIOLOGY; PHYSIOLOGY; PRESCHOOL CHILD;

AGE FACTORS; AROUSAL; CHILD; CHILD DEVELOPMENT; CHILD, PRESCHOOL; FEMALE; HUMANS; HYPOTHALAMO-HYPOPHYSEAL SYSTEM; LONGITUDINAL STUDIES; MALE; PARASYMPATHETIC NERVOUS SYSTEM; PITUITARY-ADRENAL SYSTEM; STRESS, PSYCHOLOGICAL; SYMPATHETIC NERVOUS SYSTEM;

EID: 84901727155     PISSN: 09545794     EISSN: 14692198     Source Type: Journal    
DOI: 10.1017/S0954579414000480     Document Type: Article

References (106)

1. Alkon, A., Boyce, W. T., Davis, N. V., Eskenazi, B. (2011). Developmental changes in autonomic nervous system resting and reactivity measures in Latino children from 6 to 60 months of age. Journal of Developmental & Behavioral Pediatrics, 32, 668.
2. Alkon, A., Goldstein, L. H., Smider, N., Essex, M. J., Kupfer, D. J., Boyce, W. T. (2003). Developmental and contextual influences on autonomic reactivity in young children. Developmental Psychobiology, 42, 64-78.
3. Altshuler, J. L., Ruble, D. N. (1989). Developmental changes in children's awareness of strategies for coping with uncontrollable stress. Child Development, 60, 1337-1349.
4. Bauer, A. M., Quas, J. A., Boyce, W. T. (2002). Associations between physiological reactivity and children's behavior: Advantages of a multisystem approach. Journal of Developmental & Behavioral Pediatrics, 23, 102.
5. Beauchaine, T. P. (2009). Some difficulties in interpreting psychophysiological research with children. Monographs of the Society for Research in Child Development, 74, 80-88.
6. Beauchaine, T. P., Gatzke-Kopp, L., Mead, H. K. (2007). Polyvagal theory and developmental psychopathology: Emotion dysregulation and conduct problems from preschool to adolescence. Biological Psychology, 74, 174-184.
7. Beauchaine, T. P., Neuhaus, E., Brenner, S. L., Gatzke-Kopp, L. (2010). Ten good reasons to consider biological processes in prevention and intervention research. Development and Psychopathology, 20, 745.
8. Berntson, G. G., Cacioppo, J. T., Quigley, K. S. (1993). Cardiac psychophysiology and autonomic space in humans: Empirical perspectives and conceptual implications. Psychological Bulletin, 114, 296.
9. Berntson, G. G., Cacioppo, J. T., Quigley, K. S., Fabro, V. T. (1994). Autonomic space and psychophysiological response. Psychophysiology, 31, 44-61.
10. Berntson, G. G., Uchino, B. N., Cacioppo, J. T. (1994). Origins of baseline variance and the law of initial values. Psychophysiology, 31, 204-210.
11. Boyce, W. T., Ellis, B. J. (2005). Biological sensitivity to context: I. An evolutionary-developmental theory of the origins and functions of stress reactivity. Development and Psychopathology, 17, 271-301.
12. Boyce, W. T., Essex, M. J., Alkon, A., Goldsmith, H. H., Kraemer, H. C., Kupfer, D. J. (2006). Early father involvement moderates biobehavioral susceptibility to mental health problems in middle childhood. Journal of the American Academy of Child & Adolescent Psychiatry, 45, 1510-1520.
13. Boyce, W. T., Quas, J., Alkon, A., Smider, N. A., Essex, M. J., Kupfer, D. J. (2001). Autonomic reactivity and psychopathology in middle childhood. British Journal of Psychiatry, 179, 144-150.
14. Bruce, J., Fisher, P. A., Pears, K. C., Levine, S. (2009). Morning cortisol levels in preschool-aged foster children: Differential effects of maltreatment type. Developmental Psychobiology, 51, 14-23.
15. Burt, K. B., Obradović, J. (2012). The construct of psychophysiological reactivity: Statistical and psychometric issues. Developmental Review, 33, 29-57.
16. Buske-Kirschbaum, A., Jobst, S., Psych, D., Wustmans, A., Kirschbaum, C., Rauh, W., et al. (1997). Attenuated free cortisol response to psychosocial stress in children with atopic dermatitis. Psychosomatic Medicine, 59, 419-426.
17. Cacioppo, J. T., Berntson, G. G., Malarkey, W. B., Kiecolt-Glaser, J. K., Sheridan, J. F., Poehlmann, K. M., et al. (1998). Autonomic, neuroendocrine, immune responses to psychological stress: The reactivity hypothesis. Annals of the New York Academy of Sciences, 840, 664-673.
18. Cacioppo, J. T., Uchino, B. N., Berntson, G. G. (1994). Individual differences in the autonomic origins of heart rate reactivity: The psychometrics of respiratory sinus arrhythmia and preejection period. Psychophysiology, 31, 412-419.
19. Calkins, S. D. (1997). Cardiac vagal tone indices of temperamental reactivity and behavioral regulation in young children. Developmental Psychobiology, 31, 125-135.
20. Cannon, W. B. (1932). The wisdom of the body. New York: Norton.
21. Cicchetti, D. (2010). Resilience under conditions of extreme stress: A multilevel perspective. World Psychiatry, 9, 145-154.
22. Cicchetti, D., Rogosch, F. A. (2001). The impact of child maltreatment and psychopathology on neuroendocrine functioning. Development and Psychopathology, 13, 783-804.
23. Cicchetti, D., Rogosch, F. A. (2012). Neuroendocrine regulation and emotional adaptation in the context of child maltreatment. Monographs of the Society for Research in Child Development, 77, 87-95.
24. Compas, B. E., Connor-Smith, J. K., Saltzman, H., Thomsen, A. H., Wadsworth, M. E. (2001). Coping with stress during childhood and adolescence: Problems, progress, potential in theory and research. Psychological Bulletin, 127, 87-127.
25. Crabbe, J. C., Wahlsten, D., Dudek, B. C. (1999). Genetics of mouse behavior: Interactions with laboratory environment. Science, 284, 1670-1672.
26. Dahl, R. E., Gunnar, M. R. (2009). Heightened stress responsiveness and emotional reactivity during pubertal maturation: Implications for psychopathology. Development and Psychopathology, 21, 1-6.
27. Davies, P. T., Sturge-Apple, M. L., Cicchetti, D., Manning, L. G., Zale, E. (2009). Children's patterns of emotional reactivity to conflict as explanatory mechanisms in links between interpartner aggression and child physiological functioning. Journal of Child Psychology and Psychiatry, 50, 1384-1391.
28. De Kloet, E., Fitzsimons, C., Datson, N., Meijer, O., Vreugdenhil, E. (2009). Glucocorticoid signaling and stress-related limbic susceptibility pathway: About receptors, transcription machinery and microRNA. Brain Research, 1293, 129-141.
29. Del Giudice, M., Benjamin Hinnant, J., Ellis, B. J., El-Sheikh, M. (2012). Developmental programming of children's physiological responsivity-Adaptive patterns of stress responsivity: A preliminary investigation. Developmental Psychology, 48, 775.
30. Del Giudice, M., Ellis, B. J., Shirtcliff, E. A. (2011). The adaptive calibration model of stress responsivity. Neuroscience & Biobehavioral Reviews, 35, 1562-1592.
31. Dickerson, S. S., Kemeny, M. E. (2004). Acute stressors and cortisol responses: A theoretical integration and synthesis of laboratory research. Psychological Bulletin, 130, 355-391. doi:10. 1037/0033-2909. 130. 3. 355
32. Doussard-Roosevelt, J. A., Montgomery, L. A., Porges, S. W. (2003). Short-term stability of physiological measures in kindergarten children: Respiratory sinus arrhythmia, heart period, cortisol. Developmental Psychobiology, 43, 230-242.
33. El-Sheikh, M., Erath, S. A., Buckhalt, J. A., Granger, D. A., Mize, J. (2008). Cortisol and children's adjustment: The moderating role of sympathetic nervous system activity. Journal of Abnormal Child Psychology, 36, 601-611.
34. El-Sheikh, M., Keller, P. S., Erath, S. A. (2007). Marital conflict and risk for child maladjustment over time: Skin conductance level reactivity as a vulnerability factor. Journal of Abnormal Child Psychology, 35, 715-727.
35. El-Sheikh, M., Kouros, C. D., Erath, S., Cummings, E. M., Keller, P., Staton, L. (2009). Marital conflict and children's externalizing behavior: Pathways involving interactions between parasympathetic and sympathetic nervous system activity. Monographs of the Society for Research in Child Development, 74, vii.
36. Essex, M. J., Boyce, W. T., Goldstein, L. H., Armstrong, J. M., Kraemer, H. C., Kupfer, D. J. (2002). The confluence of mental, physical, social, academic difficulties in middle childhood: II. Developing the Mac-Arthur Health & Behavior Questionnaire. Journal of the American Academy of Child & Adolescent Psychiatry, 41, 588-603.
37. Essex, M. J., Klein, M. H., Cho, E., Kalin, N. H. (2002). Maternal stress beginning in infancy may sensitize children to later stress exposure: Effects on cortisol and behavior. Biological Psychiatry, 52, 776-784.
38. Essex, M. J., Kraemer, H. C., Armstrong, J. M., Boyce, W. T. B., Goldsmith, H. H., Klein, M. H., et al. (2006). Exploring risk factors for the emergence of children's mental health problems. Archives of General Psychiatry, 63, 1246.
39. Evans, G. W., Kim, P. (2007). Childhood poverty and health cumulative risk exposure and stress dysregulation. Psychological Science, 18, 953-957.
40. Faes, T. J. C., De Neeling, N. N. D., Kingma, R., TenVoorde, B. J., Karemaker, J. M. (1995). On the quantification of heart rate changes in autonomic function tests: Relations between measures in beats per minute, seconds and dimensionless ratios. Clinical Science, 89, 557-564.
41. Forbes, E. E., Dahl, R. E. (2010). Pubertal development and behavior: Hormonal activation of social and motivational tendencies. Brain and Cognition, 72, 66-72.
42. Gellman, M., Spitzer, S., Ironson, G., Llabre, M., Saab, P., Pasin, R. D. C., et al. (1990). Posture, place, mood effects on ambulatory blood pressure. Psychophysiology, 27, 544-551.
43. Glassman, R. B. (1973). Persistence and loose coupling in living systems. Behavioral Science, 18, 83-98.
44. Gordis, E. B., Feres, N., Olezeski, C. L., Rabkin, A. N., Trickett, P. K. (2010). Skin conductance reactivity and respiratory sinus arrhythmia among maltreated and comparison youth: Relations with aggressive behavior. Journal of Pediatric Psychology, 35, 547-558.
45. Gordis, E. B., Granger, D. A., Susman, E. J., Trickett, P. K. (2006). Asymmetry between salivary cortisol and alpha-amylase reactivity to stress: Relation to aggressive behavior in adolescents. Psychoneuroendocrinology, 31, 976-987. doi:10. 1016/j. psyneuen. 2006. 05. 010
46. Gordis, E. B., Granger, D. A., Susman, E. J., Trickett, P. K. (2008). Salivary alpha amylase-cortisol asymmetry in maltreated youth. Hormones and behavior, 53, 96-103.
47. Gunnar, M. R., Frenn, K., Wewerka, S. S., Van Ryzin, M. J. (2009). Moderate versus severe early life stress: Associations with stress reactivity and regulation in 10-12-year-old children. Psychoneuroendocrinology, 34, 62-75.
48. Gunnar, M. R., Herrera, A. M. (2013). The development of stress reactivity: 3.
49. A neurobiological perspective. In The Oxford handbook of developmental psychology: Vol. 2.,Self and other, 45, Oxford: Oxford University Press
50. Self and other (p. 45). Oxford: Oxford University Press. Gunnar, M. R., Quevedo, K. (2007). The neurobiology of stress and development. Annual Review of Psychology, 58, 145-173.
51. Gunnar, M. R., Tout, K., de Haan, M., Pierce, S., Stanbury, K. (1997). Temperament, social competence, adrenocortical activity in preschoolers. Developmental Psychobiology, 31, 65-85.
52. Gunnar, M. R., Wewerka, S., Frenn, K., Long, J. D., Griggs, C. (2009). Developmental changes in hypothalamus-pituitary-adrenal activity over the transition to adolescence: Normative changes and associations with puberty. Development and Psychopathology, 21, 69-85.
53. Harkness, K. L., Stewart, J. G., Wynne-Edwards, K. E. (2011). Cortisol reactivity to social stress in adolescents: Role of depression severity and child maltreatment. Psychoneuroendocrinology, 36, 173-181.
54. Hastings, P. D., Shirtcliff, E. A., Klimes-Dougan, B., Allison, A. L., Derose, L., Kendziora, K. T., et al. (2011). Allostasis and the development of internalizing and externalizing problems: Changing relations with physiological systems across adolescence. Development and Psychopathology, 23, 1149.
55. Heim, C., Nemeroff, C. B. (1999). The impact of early adverse experiences on brain systems involved in the pathophysiology of anxiety and affective disorders. Biological Psychiatry, 46, 1509-1522.
56. Hertzman, C., Boyce, T. (2010). Howexperience gets under the skin to create gradients in developmental health. Annual Review of Public Health, 31, 329-347.
57. Hinnant, J. B., El-Sheikh, M. (2009). Children's externalizing and internalizing symptoms over time: The role of individual differences in patterns of RSA responding. Journal of Abnormal Child Psychology, 37, 1049-1061.
58. Johnson, P. L., O'Leary, K. D. (1987). Parental behavior pattern and conduct problems in girls. Journal of Abnormal Child Psychology, 15, 573-581.
59. Kagan, J. (2011). Three lessons learned. Perspectives on Psychological Science, 6, 107-113.
60. Kirschbaum, C., Hellhammer, D. H. (1994). Salivary cortisol in psychoneuroendocrine research: Recent developments and applications. Psychoneuroendocrinology, 19, 313-333.
61. Kirschbaum, C., Pirke, K. M., Hellhammer, D. H. (1993). The "Trier Social Stress Test"-A tool for investigating psychobiological stress responses in a laboratory setting. Neuropsychobiology, 28, 76-81. 10.1159/000119004
62. Klein M. H.,Hyde J. S.,Essex M. J.,Clark R., 1998, Maternity leave, role quality, work involvement, mental health one year after delivery, Psychology of Women Quarterly, 22, 239-266
63. Koss, K. J., George, M. R. W., Cummings, E. M., Davies, P. T., El-Sheikh, M., Cicchetti, D. (2013). Asymmetry in children's salivary cortisol and alpha-amylase in the context of marital conflict: Links to children's emotional security and adjustment. Developmental Psychobiology. Advance online publication.
64. Kroenke, C. H., Epel, E., Adler, N., Bush, N. R., Obradović, J., Lin, J., et al. (2011). Autonomic and adrenocortical reactivity and buccal cell telomere length in kindergarten children. Psychosomatic Medicine, 73, 533-540.
65. Kudel, I., Farber, S. L., Mrus, J. M., Leonard, A. C., Sherman, S. N., Tsevat, J. (2006). Patterns of responses on health-related quality of life questionnaires among patients with HIV/AIDS. Journal of General Internal Medicine, 21, S48-S55.
66. Kudielka, B., Buske-Kirschbaum, A., Hellhammer, D., Kirschbaum, C. (2004). HPA axis responses to laboratory psychosocial stress in healthy elderly adults, younger adults, children: Impact of age and gender. Psychoneuroendocrinology, 29, 83-98.
67. Lewejohann, L., Reinhard, C., Schrewe, A., Brandewiede, J., Haemisch, A., Görtz, N., et al. (2006). Environmental bias Effects of housing conditions, laboratory environment and experimenter on behavioral tests. Genes, Brain and Behavior, 5, 64-72.
68. Lisonbee, J. A., Pendry, P., Mize, J., Gwynn, E. P. (2010). Hypothalamic-pituitary-adrenal and sympathetic nervous system activity and children's behavioral regulation. Mind, Brain, Education, 4, 171-181.
69. Loman, M. M., Gunnar, M. R. (2010). Early experience and the development of stress reactivity and regulation in children. Neuroscience & Biobehavioral Reviews, 34, 867-876.
70. Lovallo, W. (1975). The cold pressor test and autonomic function: A review and integration. Psychophysiology, 12, 268-282.
71. Lupien, S. J., King, S., Meaney, M. J., McEwen, B. S. (2001). Can poverty get under your skin Basal cortisol levels and cognitive function in children from low and high socioeconomic status. Development and Psychopathology, 13, 653-676.
72. Lupien, S. J., McEwen, B. S., Gunnar, M. R., Heim, C. (2009). Effects of stress throughout the life span on the brain, behaviour and cognition. Nature Reviews Neuroscience, 10, 434-445.
73. McEwen, B. S. (1998). Seminars in medicine of the Beth Israel Deaconess Medical Center: Protective and damaging effects of stress mediators. New England Journal of Medicine, 338, 171-179.
74. McEwen, B. S. (2006). Protective and damaging effects of stress mediators: Central role of the brain. Dialogues in Clinical Neuroscience, 8, 367.
75. McEwen, B. S., Gianaros, P. J. (2010). Central role of the brain in stress and adaptation: Links to socioeconomic status, health, disease. Annals of the New York Academy of Sciences, 1186, 190-222.
76. McEwen, B. S., Stellar, E. (1993). Stress and the individual: Mechanisms leading to disease. Archives of Internal Medicine, 153, 2093.
77. Miller, G. E., Chen, E., Fok, A. K., Walker, H., Lim, A., Nicholls, E. F., et al. (2009). Low early-life social class leaves a biological residue manifested by decreased glucocorticoid and increased proinflammatory signaling. Proceedings of the National Academy of Sciences, 106, 14716-14721.
78. Muthén, B. (2008). Latent variable hybrids: Overview of old and new models. Advances in Latent Variable Mixture Models, 1, 1-24.
79. Nagin, D. S., Odgers, C. L. (2010). Group-based trajectory modeling in clinical research. Annual Review of Clinical Psychology, 6, 109-138. doi:10. 1146/annurev. clinpsy. 121208. 131413
80. Natsuaki, M. N., Klimes-Dougan, B., Ge, X., Shirtcliff, E. A., Hastings, P. D., Zahn-Waxler, C. (2009). Early pubertal maturation and internalizing problems in adolescence: Sex differences in the role of cortisol reactivity to interpersonal stress. Journal of Clinical Child & Adolescent Psychology, 38, 513-524.
81. Nylund, K. L., Asparouhov, T., Muthén, B. O. (2007). Deciding on the number of classes in latent class analysis and growth mixture modeling: A Monte Carlo simulation study. Structural Equation Modeling, 14, 535-569.
82. Obradović, J. (2012). How can the study of physiological reactivity contribute to our understanding of adversity and resilience processes in development Development and Psychopathology, 24, 371-387.
83. Obradović, J., Bush, N. R., Boyce, W. T. (2011). The interactive effect of marital conflict and stress reactivity on externalizing and internalizing symptoms: The role of laboratory stressors. Development and Psychopathology, 23, 101-114.
84. Obradović, J., Bush, N. R., Stamperdahl, J., Adler, N. E., Boyce, W. T. (2010). Biological sensitivity to context: The interactive effects of stress reactivity and family adversity on socioemotional behavior and school readiness. Child Development, 81, 270-289.
85. Porges, S. W. (2007). The polyvagal perspective. Biological Psychology, 74, 116-143.
86. Porter, B., O'Leary, K. D. (1980). Marital discord and childhood behavior problems. Journal of Abnormal Psychology, 8, 287-295.
87. Quas, J. A., Carrick, N., Alkon, A., Goldstein, L., Boyce, W. T. (2006). Children's memory for a mild stressor: The role of sympathetic activation and parasympathetic withdrawal. Developmental Psychobiology, 48, 686-702. doi:10. 1002/dev. 20184
88. Quas, J. A., Murowchick, E., Bensadoun, J. r., Boyce, W. T. (2002). Predictors of children's cortisol activation during the transition to kindergarten. Journal of Developmental & Behavioral Pediatrics, 23, 304-313.
89. Quas, J. A., Yim, I. S., Edelstein, R. S., Cahill, L., Rush, E. B. (2011). The role of cortisol reactivity in children's and adults' memory of a prior stressful experience. Developmental Psychobiology, 53, 166-174. doi:10. 1002/dev. 20505
90. Quevedo, K., Johnson, A. E., Loman, M. L., LaFavor, T. L., Gunnar, M. (2012). The confluence of adverse early experience and puberty on the cortisol awakening response. International Journal of Behavioral Development, 36, 19-28.
91. Radloff, L. S. (1977). The CES-D scale: A self report depression scale for research in the general population. Applied Psychological Measurement, 1, 385-401.
92. Raine, A. (2002). Biosocial studies of antisocial and violent behavior in children and adults: A review. Journal of Abnormal Child Psychology, 30, 311-326.
93. Rogosch, F. A., Dackis, M. N., Cicchetti, D. (2011). Child maltreatment and allostatic load:Consequences for physical and mental health in children from low-income families. Development and Psychopathology, 23, 1107.
94. Roozendaal, B., Hahn, E. L., Nathan, S. V., Dominique, J. F., McGaugh, J. L. (2004). Glucocorticoid effects on memory retrieval require concurrent noradrenergic activity in the hippocampus and basolateral amygdala. Journal of Neuroscience, 24, 8161-8169.
95. Ruble, D. N., Boggiano, A. K., Feldman, N. S., Loebl, J. H. (1980). Developmental analysis of the role of social comparison in self-evaluation. Developmental Psychology, 16, 105.
96. Salomon, K., Matthews, K. A., Allen, M. T. (2000). Patterns of sympathetic and parasympathetic reactivity in a sample of children and adolescents. Psychophysiology, 37, 842-849.
97. Sapolsky, R. M., Romero, L. M., Munck, A. U. (2000). How do glucocorticoids influence stress responses Integrating permissive, suppressive, stimulatory, preparative actions. Endocrine Reviews, 21, 55-89.
98. Shirtcliff, E. A., Essex, M. J. (2008). Concurrent and longitudinal associations of basal and diurnal cortisol with mental health symptoms in early adolescence. Developmental Psychobiology, 50, 690-703.
99. Shirtcliff, E. A., Granger, D. A., Booth, A., Johnson, D. (2005). Low salivary cortisol levels and externalizing behavior problems in youth. Development and Psychopathology, 17, 167-184.
100. Tarullo, A. R., Gunnar, M. R. (2006). Child maltreatment and the developing HPA axis. Hormones and Behavior, 50, 632-639.
101. Taylor, S. E., Lerner, J. S., Sage, R. M., Lehman, B. J., Seeman, T. E. (2004). Early environment, emotions, responses to stress, health. Journal of Personality, 72, 1365-1394.
102. Torpy, D. J., Chrousos, G. P. (1996). The three-way interactions between the hypothalamic-pituitary-adrenal and gonadal axes and the immune system. Bailliere's Clinical Rheumatology, 10, 181.
103. Weiner, H. (1992). Perturbing the organism: The biology of stressful experience. Chicago: University of Chicago Press.
104. Wilder, J. (1958). Modern psychophysiology and the law of initial value. American Journal of Psychotherapy, 12, 199-221.
105. Yim, I. S., Quas, J. A., Cahill, L., Hayakawa, C. M. (2010). Children's and adults' salivary cortisol responses to an identical psychosocial laboratory stressor. Psychoneuroendocrinology, 35, 241-248. doi:10. 1016/j. psyneuen. 2009. 06. 014
106. Zimmer-Gembeck, M. J., Skinner, E. A. (2011). Review: The development of coping across childhood and adolescence: An integrative review and critique of research. International Journal of Behavioral Development, 35, 1-17.