The second is the psychogenic erection, which is achieved by erotic or emotional stimuli.

The smell and the sound of leather is often an erotic stimulus for people with a leather fetish.

But if there is no response, a physical cause may be blocking the man's natural reaction to erotic stimuli.

There was nothing of voyeurism in the fascination they had for him and he felt no erotic stimulus.

In doing this, one's thoughts block out, rather than enhance, erotic stimuli and responses.

Things that precipitate human sexual arousal are called erotic stimuli, colloquially known as turn-ons.

Similarly, a person's sexual partner will normally also know his or her partner's erotic stimuli and turn-offs.

Some people do not feel aroused on every occasion that they are exposed to erotic stimuli, nor act in a sexual way on every arousal.

Perhaps there was an erotic stimulus in the notion that one was ravaging a sack of gold.