Do foetuses communicate? Foetal responses to interactive versus non-interactive maternal voice and touch: An...

Area of Science:

• Prenatal Development
• Fetal Behavior
• Maternal-Fetal Interaction

Background:

• Prenatal development suggests a continuity of social responsiveness from fetus to newborn.
• Fetal sensorimotor competence indicates a potential for pre-birth communicative readiness.
• Understanding fetal responses to external stimuli is key to prenatal communication research.

Purpose of the Study:

• To investigate evidence of communicative engagement in fetuses.
• To compare fetal responses to interactive versus non-interactive maternal stimuli.
• To explore fetal discrimination of external sensory inputs.

Main Methods:

• Utilized 4D ultrasound (Voluson S10) to record fetal behaviors (N=12, 2-33 gestational weeks).
• Applied three conditions: mother's voice, maternal abdominal touch, and a control.
• Coded fetal movements frame-by-frame, differentiating interactive and non-interactive applications.

Main Results:

• Fetuses exhibited differential right-hand self-touch and face-touch behaviors in response to maternal touch.
• Maternal abdominal touch reduced fetal self-touch compared to talking or baseline.
• Fetuses showed increased mouth opening during interactive talk and increased sucking during interactive touch.

Conclusions:

• Third-trimester fetuses can discriminate between interactive and non-interactive external stimuli.
• Fetuses demonstrate contingent responses to maternal interactions, suggesting early communicative engagement.
• This study provides the first comparison of interactive versus non-interactive fetal engagement.