Defining Immediate Effects of Sensitive Periods on Infant Neurobehavioral Function

Area of Science:

• Neuroscience
• Developmental Psychology
• Attachment Theory

Background:

• The infant brain possesses unique circuitry during sensitive periods for survival.
• Infant brains are not merely immature versions of adult brains.
• Attachment relationships are crucial for infant survival and development.

Purpose of the Study:

• To illustrate regulatory functions during sensitive periods of infant brain development.
• To present recent advances in transient neural mechanisms supporting these functions.
• To examine how these systems are affected by the absence of caregiving.

Main Methods:

• Review of human and animal literature.
• Analysis of examples illustrating regulatory functions.
• Examination of supporting neural mechanisms.

Main Results:

• Infant brains exhibit specialized circuitry for survival behaviors.
• Caregiver attachment facilitates physiological regulation in infants.
• Absence of expected caregiving disrupts these regulatory systems.

Conclusions:

• The infant brain's development is intrinsically linked to caregiver interactions during sensitive periods.
• Transient neural mechanisms support crucial regulatory functions.
• Disrupted caregiving can lead to developmental impairments.