Background Speech Disrupts Working Memory Span in 5-Year-Old Children.

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Auditory Neuroscience

Background:

• Working memory is crucial for learning and cognitive development in children.
• The impact of auditory environments on cognitive performance is an area of ongoing research.
• Understanding how different types of background noise affect children's memory is important for educational and clinical settings.

Purpose of the Study:

• To investigate the effects of background speech versus non-speech noise on the working memory span of 5-year-old children.
• To determine if the verbal content of background noise influences cognitive task performance.

Main Methods:

• A modified Missing Scan Task was administered to 94 typically developing 5-year-old children.
• Participants completed the task in quiet, with two-talker speech, and with speech-shaped noise.
• Working memory span was analyzed using analyses of variance to compare listening conditions and noise types.

Main Results:

• Children's working memory span decreased significantly in the presence of two-talker background speech.
• No significant decline in working memory span was observed with speech-shaped noise.
• These findings were consistent across two experiments, controlling for potential interference effects.

Conclusions:

• Background speech, unlike speech-shaped noise, disrupts working memory in young children.
• This disruption suggests that background speech engages domain-general cognitive processes involved in memory recall.
• The findings underscore the importance of auditory environments for children's cognitive functioning.