PSY 620P Contexts are not fully independent ▪ Parenting is directly associated with the type of crowd adolescents choose to affiliate with (Brown et al., 1993) Effects of contexts on individual can be altered by other contexts within the system ▪ Maladaptive adolescent crowd affiliation (vs. adaptive or neutral) increased adverse effects of poor parenting and diminished effects of positive parenting (Brown & Huang, 1995) High levels of support from school personnel decreased levels of distress among young adolescents with low levels of parental support (but didn’t make a difference for kids with high levels of parental support) (Dubois et al., 1992) ▪ Restrictive and controlling parenting is adaptive in dangerous neighborhoods (e.g., Baldwin et al., 1990) ▪ Greatest effects on child if ▪ (a) family in poverty for multiple years vs. shorter amounts of time, and ▪ (b) poverty experienced early in life vs. adolescence (Brooks-Gunn & Duncan, 1997) Multiple levels of organization Fused, embedded, nested Development can be seen across all units of time ms years Development is adaptive and organized Not just random change Limits on possible outcomes, self-organization Multiple, mutual, continuous interaction of all components of developing system Emergence of new forms of behavior Development as an open system Self-organizing with relative plasticity Emphasis on “how” development changes, not what the changes are Change occurs within complex systems that interact over time to contribute to produce change in behavior Amiel, 1/14/16 Systems are self-organizing The brain is not the controller of behavior & no specific component has priority for causing change Rejection of dichotomies Nature vs. nurture Application to social development? Emotional development? Amiel, 1/14/16 How do we identify or define “cause”? How do we integrate levels across multiple time points? Research methods Amiel, 1/14/16 Real time Developmental time Smile (sleep/drowsy) Attentive Brow (awake) Smile (awake) Messinger,, et al., 2002; Dondi, et al., 2007 Dynamic Systems Theory – Applications Focus on change, emergence of new forms, self- organization ▪ Static System xt = f (a,b,c….) vs. ▪ Dynamic System xt = f (xt-1,a,b,c….) Dominant behaviors as attractors ▪ Arousal + negative emotional valence? ▪ Strange Situation examples ▪ Kid Mobility 2016 examples: Sex differences ▪ State Space Grid Analysis ▪ Grids reflecting co-occurrence of 2 or more variables see Howe & Lewis, 2005; Martin et al., 2005 (and entire Developmental Review, 25 special section) ▪ Sex differences What brings young children together as play partners? Martin et al., 2005 ▪What features attract the target child in these 3 hypothetical plots of their successive interaction partners? ▪ “Child 2 may have been goading the seemingly affable Child 1 through negative behavior. ▪ Eventually, Child 1 responds in kind and the interaction ends in mutually high negativity, indicating a conflict has ensued.” ▪ True? C. L. Martin et al. / Developmental Review 25 (2005) , pp. 307-308 Boys Target child emotionality of A) boys and B) girls, playing with boys or girls Girls Two children with same sex peer proclivities Two children with other sex peer proclivities How do these dyadic emotional dynamics differ?