Electrodermal activity and temperament in preschool children

Area of Science:

• Developmental Psychology
• Psychophysiology
• Behavioral Neuroscience

Background:

• Electrodermal reactivity (EDR) patterns in young children are not well understood.
• The behavioral inhibition system (BIS) is theorized to influence individual differences in emotional and behavioral regulation.
• Understanding EDR in children can provide insights into the development of the BIS.

Purpose of the Study:

• To investigate EDR patterns in 4-year-old children.
• To test if EDR reflects individual differences in the BIS, specifically fearfulness and effortful control.
• To examine the relationship between physiological and psychological stimuli and SCRs.

Main Methods:

• Recorded skin conductance responses (SCRs) in 92 children aged 4 years.
• Exposed children to physiological stimuli (breaths, sounds) and psychological stimuli (conflict, emotional films).
• Assessed temperament dimensions (fearfulness, effortful control) using observational batteries at ages 2 and 4.

Main Results:

• Physiological stimuli (sounds) and, to a lesser extent, psychological stimuli elicited clear SCRs.
• Psychological conflict and emotional film clips generally did not increase skin conductance (SC).
• Significant, though modest, correlations were found between SC lability and temperament dimensions (fearfulness, effortful control) at age 4.

Conclusions:

• Electrodermal reactivity in young children is influenced by physiological stimuli.
• Temperament dimensions related to the BIS show modest associations with EDR in early childhood.
• Further research is needed to fully elucidate the link between EDR and BIS development.