False Belief Understanding in Deaf Children With Cochlear Implants

Area of Science:

• Developmental Psychology
• Audiology
• Neuroscience

Background:

• Theory of Mind (ToM) is vital for social interaction.
• Deaf and hard-of-hearing (DoH) children, especially those from hearing families, are at risk for delayed ToM development.
• The impact of early cochlear implantation (CI) on ToM in DoH children remains unclear.

Purpose of the Study:

• To investigate false belief understanding (FBU) in DoH children with CIs.
• To explore the relationship between FBT performance and factors like sentence comprehension, age at implantation, duration of CI use, and speech recognition.

Main Methods:

• Tested 45 DoH children with CIs (aged 3-8, implanted 6-27 months) and 94 typically hearing (TH) children on a false belief task (FBT) and sentence comprehension.
• Analyzed correlations between FBT scores and audiological/developmental metrics.

Main Results:

• Children with CIs aged 4-5 performed significantly worse on FBT than TH peers.
• By ages 6-8, children with CIs performed similarly to TH peers.
• Age at implantation and CI duration correlated with sentence comprehension, but not FBT performance.
• FBU was delayed until age 6 in most DoH children with CIs.

Conclusions:

• FBU is delayed in DoH children with CIs, with significant deficits observed until age 6.
• While early CI use supports language development, it does not fully mitigate FBU delays.
• Further research is needed to understand the long-term social-cognitive outcomes for DoH children with CIs.