Shahid Beheshti University of Medical Sciences The Scientific Journal of Rehabilitation Medicine 2251-8401 8 1 2019 03 21 Development of Hearing, Speech, Language, and Cognition before Birth Up to Eight Years of Age Development of Hearing, Speech, Language, and Cognition before Birth Up to Eight Years of Age 208 255 1100691 10.22037/jrm.2019.111595.2069 FA Leyla Jalilvand Karimi Instructor, Department of Audiology, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran PhD student in Audiology, Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran 0000-0003-3829-7658 Journal Article 2018 12 01 <strong>Background and Aims:</strong> The study of hearing development in human fetuses and infants is relatively young. Hearing plays an important role in normal development of speech, language, learning, memory, and cognition even prior to birth. The aim of the present study was to review articles on development of hearing, speech, language, and cognition before birth up to eight years of age. <br /><strong>Materials and Methods:</strong> In present study, articles on development of hearing, speech, language, nervous system, memory, limbic system, and learning that were published between 1932 to 2016 on Pubmed, Elsevier, Science Direct, Springer, Scopus, ISI, Google Scholar, and Wiley databases were searched and reviewed using the following keywords: development of hearing, development of speech and language, development of nervous system, development of memory, and development learning and cognition. <br /><strong>Results:</strong> In contrast to vision, early experience of hearing begins before birth and its development continues along the development of speech, language, and cognition to years after birth. <br /><strong>Conclusion:</strong> Fetal auditory memory plays an important role in acquisition of future language skills. Also, hearing is vital in normal development of speech, language, memory, learning, and cognition. <strong>Background and Aims:</strong> The study of hearing development in human fetuses and infants is relatively young. Hearing plays an important role in normal development of speech, language, learning, memory, and cognition even prior to birth. The aim of the present study was to review articles on development of hearing, speech, language, and cognition before birth up to eight years of age. <br /><strong>Materials and Methods:</strong> In present study, articles on development of hearing, speech, language, nervous system, memory, limbic system, and learning that were published between 1932 to 2016 on Pubmed, Elsevier, Science Direct, Springer, Scopus, ISI, Google Scholar, and Wiley databases were searched and reviewed using the following keywords: development of hearing, development of speech and language, development of nervous system, development of memory, and development learning and cognition. <br /><strong>Results:</strong> In contrast to vision, early experience of hearing begins before birth and its development continues along the development of speech, language, and cognition to years after birth. <br /><strong>Conclusion:</strong> Fetal auditory memory plays an important role in acquisition of future language skills. Also, hearing is vital in normal development of speech, language, memory, learning, and cognition. https://medrehab.sbmu.ac.ir/article_1100691_1de25b1549567f4ed32724722c01a23e.pdf