Previous research has shown that fetuses can habituate to sounds and that the fetus has a short-term memory of 24-hours, but this study further examined how long these memories can last.

• 之前的研究表明，胎儿能对声适应并且胎儿有24小时的短期记忆，但这研究进一步检查了这些记忆能持续多久。