Australian researchers said people under 65 suffering from frontotemporal dementia (FTD) ~ the second most prevalent form of dementia ~ cannot decipher sarcasm, which helps explains some of their lack of feeling toward their caregivers.
"This is significant because if caregivers are angry, sad or depressed, the patient won't pick this up. It is often very upsetting for family members," John Hodges, one of the lead researchers, told Cosmos magazine. "Patients find it difficult to interact with people, they don't pick up on social cues, they lack empathy and they make bad judgements."
Researchers began studying the role of sarcasm in detecting FTD, because it requires a patient to spot discrepancies between a person's words and the tone of their voice, Hodges said.
Click here for the complete article in Cosmos magazine.