Research on the physiological bases of temperament has demonstrated that _____ are associated with temperament.
A) heart rate and respiratory characteristics but not brain activation patterns
B) brain activation patterns but not heart rate and respiratory characteristics
C) both brain activation patterns and heart rate and respiratory characteristics
D) neither brain activation patterns nor heart rate and respiratory characteristics

Question

Quizplus · Accepted Answer

Research has shown that both brain activation patterns and heart rate and respiratory characteristics are associated with temperament. For example, studies have found that infants with higher levels of negative emotionality have greater activity in the right frontal cortex and lower levels of parasympathetic nervous system activity (measured by heart rate variability and respiratory sinus arrhythmia). Meanwhile, infants with higher levels of positive emotionality have greater activity in the left frontal cortex and higher levels of parasympathetic nervous system activity.

Research on the Physiological Bases of Temperament Has Demonstrated That