#Ejaculation Frequency and Risk of #Prostate Cancer: Updated Results with an Additional Decade of Follow-up

Evidence suggests that ejaculation frequency may be inversely related to the risk of prostate cancer (PCa), a disease for which few modifiable risk factors have been identified. ObjectiveTo incorporate an additional 10 yr of follow-up into an original analysis and to comprehensively evaluate the association between ejaculation frequency and PCa, accounting for screening, clinically relevant …

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Reinforcement learning links spontaneous cortical #dopamine impulses to reward

Extrasynaptic levels of dopamine in mouse cortex exhibit spontaneous impulses•Impulses are broadly distributed in amplitude and time, with a rate of about 0.01/s•Feedback was used to train mice to volitionally control their spontaneous impulses•Mice learned to reliably modulate dopamine impulses in order to receive a reward SummaryIn their pioneering study on dopamine release, Romo and …

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