These experiments examined the impact of extensive depletions of forebrain 5-hydroxytryptamine (5-HT; serotonin) levels on prepulse inhibition (PPI) of the acoustic startle reflex in rats. In ...

Medically reviewed by Jonathan B. Jassey, DO Key Takeaways The Moro reflex is a startle response in babies that makes their ...

The acoustic startle response is an unconditional reflex manifested as a rapid contraction of facial and skeletal muscles in response to a sudden and intense startling stimulus. Translational research ...

If your newborn is startled, they might cry out and curl up. This reflex is normal for the first few months of life and is something your baby’s doctor may check for after delivery. If your new baby ...

The startle reflex is a rapid, involuntary response to sudden acoustic stimuli, and its study has provided valuable insights into the neural mechanisms underlying motor preparation. Research in this ...