Sociocultural Devolution - Mental Health Connection

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www.ChildTrauma.org 12/19/082418 6Self-defeating Educational,Caregiving, Therapeutic SettingsThe ratio of educator, caregiver, adult to youngchild is far too low to optimize positive andminimize negative!The Greater the Ratio the MoreNecessary Negative Interactions Becomewww.ChildTrauma.org12Bruce D Perry, MD, PhD © 2005Bruce D Perry, MD, PhD © 2005Childhooddecides.Jean Paul SartreNeocortexLimbicDiencephalonBrainstemAbstract thoughtConcrete ThoughtAffiliation"Attachment"Sexual BehaviorEmotional ReactivityMotor Regulation"Arousal"Appetite/SatietySleepBlood PressureHeart RateBody Temperaturewww.ChildTrauma.orgBruce D Perry, MD, PhD © 2005www.ChildTrauma.orgBruce D Perry, MD, PhD © 2005The brain developsand organizes as areflection ofdevelopmentalexperience,organizing inresponse to thepattern, intensityand nature ofsensory andperceptualexperience.Bruce D Perry, MD, PhD © 2005The Brain DevelopsThe human brain, with all of its complexstructure and function, does not just“pop” into existence.In the 9 months following conception, 100 billionneurons and 10 trillion glial cells are born.These cells organize, move, connect andspecialize to create the amazing andfunctioning brain of the newborn.Bruce D Perry, MD, PhD © 2005All Rights Reserved @ B. D. Perry 2008 6
www.ChildTrauma.org 12/19/08First MemoriesIn utero the most dominant repetitive sensoryexperience is the ever-present maternal heart beat.This powerful rhythmic pattern becomes associatedwith warmth, comfort, quiet, satiety and safety.The Primary Initial Rythyms of the Brainstem are 80/bpm and multiples thereof.Development is the sequentialacquisition of memoryThe brain changes from conception to death.The most change in neural systems – i.e., themost creation of “memory” takes place in thefirst years of life.Bruce D Perry, MD, PhD © 2005Bruce D Perry, MD, PhD © 2005Homeostasis and Memory• When incoming sensory signals (sights, sounds, smells,taste) are familiar, the homeostasis of the brain is notaltered.• When an experience has unique patterns of sensorysignal (and corresponding novel neurophysiologicalpatterns) homeostasis is altered - creating and storingnew templates.• Altered homeostasis results in new templates of neuralactivity - memories.The Brain does not like Surprises• All novel stimuli activate “attention”.• Novel stimuli, until proven otherwise, arecategorized as potentially-threatening.• New situations, new faces, new places - evenwhen “fun” - activate a low-level arousal/stress response.www.ChildTrauma.orgBruce D Perry, MD, PhD © 2005www.ChildTrauma.orgBruce D Perry, MD, PhD © 2005From Specific to General• The brain takes associations from a single orspecific event and generalizes to othersituations.• The brain can generalize from the singleabusive father to all adult males.• This process, generalization, can literallyalter the way future experiences are sensed,perceived and processed.Sequential Sensory Processing• All sensory input from the outside world first entersthe brain at level of the brainstem or midbrain.• The process of “matching” against the templates ofprevious neural patterns begins at these levels.• The brainstem, midbrain, and limbic systems maystart “acting” on incoming information even beforethe it reaches the cortex.www.ChildTrauma.orgBruce D Perry, MD, PhD © 2005www.ChildTrauma.orgBruce D Perry, MD, PhD © 2005All Rights Reserved @ B. D. Perry 2008 7
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Sociocultural Devolution - Mental Health Connection

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