'Star Trek' star Nichelle Nichols diagnosed with dementia

Star Trek actor Nichelle Nichols has been diagnosed with dementia. 

TMZ has obtained documents filed in the 85-year-old's conservatorship in which Dr Meena Makhijani reportedly states that Nichols has been a patient of hers over the last two to three years and that she has "moderate progressive dementia." 

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The website also reports that the doctor states in the documents that Nichols "has major impairment of her short-term memory and moderate impairment of understanding abstract concepts, sense of time, place and immediate recall."

"There's no apparent impairment," however, when it comes to Nichols' "long-term memory, orientation of her body, comprehension, verbal communication, concentration, recognition of familiar people, as well as ability to reason logically and plan actions," the report claimed, citing the documents. 

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Nichols started her career as Uhura in Star Trek on the TV series in the '60s. The actor even appeared at Comic-Con last month to discuss her iconic role.