Researchers awarded $47 million for medical research
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Biden exhibits classic dementia symptoms
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18 APRIL 2021
Dementia is a thief that picks many pockets. In some guises, it takes our memories. Other forms rob us of inhibition. Sometimes it even takes away happiness itself.
A new study has shown for the first time how some forms of early-onset dementia are associated with a profound loss of pleasure linked to a wasting of hedonic hotspots – brain regions associated with reward seeking.
An absence of pleasure is known as anhedonia, and it s a common symptom in mental health conditions such as depression and obsessive-compulsive disorder. Where most of us are rewarded with a sense of satisfaction, excitement, and bliss when we achieve a goal or associate with loved ones, those experiencing anhedonia can t.
Loss of Pleasure Linked to Early-Onset Dementia Not Alzheimerâs, New Study Finds
April 15, 2021
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“Much of human experience is motivated by the drive to experience pleasure but we often take this capacity for granted,â says Muireann Irish, PhD, professor at the University of Sydney’s Brain and Mind Centre and School of Psychology.
The ability to feel pleasure depends on the activity of hedonic hotspots in the brain. Scientists at the University of Sydney, led by Irish, show loss of the ability of experience pleasure is unique to early-onset dementia, also known as frontotemporal dementia (FTD), but not Alzheimer’s disease. This is the first study the researchers claim, that links FTD to the loss of the ability to experience pleasureâclinically called anhedonia.