Cortical Auditory Evoked Potentials in 2-Year-Old Subjects.

Area of Science:

• Neuroscience
• Audiology
• Developmental Pediatrics

Background:

• Cortical auditory evoked potentials (CAEPs) assess auditory function, including sensitivity and thresholds, particularly in infants.
• Auditory evoked potentials indicate auditory maturity, crucial for speech and language development.
• Understanding CAEP development in early childhood is vital for identifying potential hearing impairments.

Purpose of the Study:

• To investigate the presence, latency, and amplitude of CAEP components in response to verbal stimuli in 2-year-old children.
• To establish normative data for CAEPs in this age group.
• To correlate CAEP findings with auditory pathway maturation.

Main Methods:

• Nineteen 24-month-old children (10 male, 9 female) participated.
• CAEPs were recorded in response to verbal stimuli.
• Analysis focused on the presence and characteristics of CAEP components.

Main Results:

• 17 out of 19 participants exhibited all CAEP components.
• No significant gender or ear differences were found in the CAEPs.
• The presence of all components suggests auditory pathway maturation by 24 months.

Conclusions:

• The P1/N1 and P2/N2 components of CAEPs are observable in 24-month-old children.
• These findings support the existence of a critical period for auditory pathway maturation within the first two years of life.
• CAEPs are a valuable tool for assessing auditory development in young children.