Study finds that inability to detect lies, sarcasm may be early sign of dementia

Scientists from the University of San Francisco studied a group of 167 participants who watched videos of two people conversing - who sometimes lied or spoke sarcastically - and concluded that those with possible neurological disorders are much less likely to detect the cues of false speech. 


Some have suggested that this could be an effective and informal way to better diagnose patients with the disease.


"If somebody has strange behavior and they stop understanding things like sarcasm and lies, they should see a specialist who can make sure this is not the start of one of these diseases," said Dr.

Katherine Rankin.


This could be a way to help families plan for Alzheimer's care well in advance as well, which could help seniors plan their wills and estates, and also instruct loved ones on what kind of retirement living community they may prefer in the future.


Experts also suggest that difficulty handling money may be another early indicator of dementia. If an older parent or partner stops paying bills or begins making irresponsible financial decision, it may be time to start planning.  


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