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 ...

The acoustic startle response is an unconditional reflex involving rapid facial and skeletal muscle movements triggered by sudden, startling stimuli like sound or light. Studying the acoustic startle ...

A sudden loud sound evokes an electromyographic (EMG) response from the orbicularis oculi muscle in humans together with an auditory evoked potential (AEP) and an increase in skin conductance (SC).

Anxiety is associated with a spectrum of behaviors, including temperamental traits, conditioned and innate fear, anxiety disorders and depression. Anxiety disorders account for an essential part of ...

We all jump at an unexpected noise or touch, but in some people, this startle response is exaggerated, and can cause falls and even death. Now, researchers in the United Kingdom have found new genes ...

I’ve been reading a lot recently about the startle reflex as it applies to folks who suffer with panic disorder and agoraphobia. As you probably suspected, people diagnosed with this wretched curse ...

Variations in a gene that regulates the brain chemical dopamine may help explain why some people are more prone to anxiety than others, a new study suggests. The gene in question, known as COMT, ...

"He has a great temperament." You might have heard an owner or trainer say these words when describing a horse, but how do we really define temperament? According to Jeannine Berger, DVM, Dipl. ACVB, ...