NDM - WE DONT SEE DREAM WITH PHYSICAL EYE

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Researchers tend to disagree when it comes to dreams of the congenitally blind, or those who were born blind. Some experts argue that people who were born blind do not see visual content in their dreams, just as they do not see anything visual while they are awake. Others, however, beg to differ.

People with congenital blindness experience fewer eye movements  Trusted SourceNational Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source during the rapid eye movement (REM) sleep phase than their sighted counterparts. Since most complex dreaming happens during the REM stage  Trusted SourceNational Institute of Neurological Disorders and Stroke (NINDS)NINDS aims to seek fundamental knowledge about the brain and nervous system and to use that knowledge to reduce the burden of neurological disease.View Source and eye movements are hypothesized to correlate to visual dream content, this could suggest that people with congenital blindness don’t experience visual content while dreaming.

However, people who became blind at a later age also experience fewer eye movements during the REM stage of sleep. These sleepers do experience visual dream content, suggesting the hypothesis stating that a lack of eye movements during REM indicates a lack of visual dream content is likely untrue. Eye movements made during REM may correlate to visual dreaming in sighted people, but they appear not to in blind people, regardless of when they went blind.

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