Commonly prescribed medication shown to cause 'emotional dullness' – could affect millions - Express

If they chose A, then four out of five times, they would receive a reward whereas, if they chose B, they would only receive a reward one time out of five.
The volunteers were not told this rule, so they would have to figure it out themselves.
Participants who took the escitalopram experienced reduced sensitivity to rewards, and found it harder to use the positive or negative feedback to guide their decisions.
Professor Sahakian said: "From our study, we can now see that this is because they become less sensitive to rewards, which provide important feedback."
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