Tim talks to neuroscientist Dr. Nicole Prause about the neuroscience of erections (of course!), the ins and outs of conducting sex research, and how porn and partnered sex affect the brain differently. She dispels myths about the correlation between testosterone levels and erections and talks about how neuroscience likely validates the effectiveness of sensate focus. They also get technical, discussing penile salience networks, transcranial magentic stimulation and what neuroimaging tells us about sex.