PSYC23H3 Lecture Notes - Lecture 7: Thermoregulation, Solitary Tract, Plant Defense Against Herbivory
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Lower levels in high risk initially, later it becomes the same. Low risk is more relaxed during the frustration task. To measure this, they used rsa = respiratory sinus arrhythmia. Being able to respond to stress in degrees. Being able to activate the sympathetic system rapidly (on and off) involves the parasympathetic inhibiting and dis-inhibiting the sympathetic. Polyvagal is more for inhibit sam and hpa, encouraging prosocial behaviour. Engine would go so much faster if someone weren"t pressing the breaks every second. Children in high risk group showed less vagal suppression (i. e. , less of a decrease in rsa from rest to challenge) This is evidence that it doesn"t really matter how well you regulate this system. If you can measure it in fetus and monitor for a couple months, more maturation = better outcomes. Parameters = fast vs. slow heart rate and changes in rsa. Slow hr (at rest) and variable rsa (high.
