Neuroscience

Profound loss of pleasure related to early-onset dementia

People with early-onset dementia are often mistaken for having depression and now Australian research has discovered the cause: a profound loss of ability to experience pleasure—for example a delicious meal or beautiful ...

Neuroscience

Why stress doesn't always cause depression

Rats susceptible to anhedonia, a core symptom of depression, possess more serotonin neurons after being exposed to chronic stress, but the effect can be reversed through amygdala activation, according to new research in the ...

Psychology & Psychiatry

Genetic variation contributes to individual differences in pleasure

Differences in how our brains respond when we're anticipating a financial reward are due, in part, to genetic differences, according to research with identical and fraternal twins published in Psychological Science, a journal ...

Medications

New drug mimics benefits of ketamine for depression

A new small-molecule drug produced a rapid antidepressant response similar to that of ketamine when tested in mice, a new Yale-led study published April 16 in the Journal of Clinical Investigation shows.

Psychology & Psychiatry

People with anhedonia do experience pleasure, just not as often

Put bluntly, a hedonist is a bon vivant, or at the very least somebody whose highest priority is to enjoy life. If you suffer from anhedonia – the opposite of this – then you are in an unenviable position. During her ...

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