The jump scare doesn’t seem like it should work. Horror movie watchers know that someone is going to jump out — that’s why they watch horror movies. But still, neural circuitry is undeniable and the ...

The startle response is a sudden, reflex-like response to an unexpected stimulus, such as a loud noise or bright light. It is an unlearned and largely unconscious defense mechanism shared by animals ...

You may have noticed your baby being startled or reacting suddenly when you're trying to put them down to sleep. This is the Moro reflex, one of several normal reflexes that healthy babies are born ...