Changes

==Description==

==Description==

A '''reflex''' [[action]], also known as a reflex, is an involuntary and nearly [[instantaneous]] movement in [[response]] to a [[stimulus]].  In most [[contexts]], in particular those involving [[humans]], reflex [[actions]] are mediated via the reflex arc; this is not always true in other [[animals]], nor does it apply to casual uses of the term 'reflex'.

A '''reflex''' [[action]], also known as a reflex, is an involuntary and nearly [[instantaneous]] movement in [[response]] to a [[stimulus]].  In most [[contexts]], in particular those involving [[humans]], reflex [[actions]] are mediated via the reflex arc; this is not always true in other [[animals]], nor does it apply to casual uses of the term 'reflex'.

*Reaction time

*'''Reaction time'''

For a reflex, [http://en.wikipedia.org/wiki/Reaction_time reaction time] or latency is the time from the onset of a [[stimulus]] until the [[organism]] responds.

For a reflex, [http://en.wikipedia.org/wiki/Reaction_time reaction time] or latency is the time from the onset of a [[stimulus]] until the [[organism]] responds.

In animals, reaction time to visual stimuli is typically 150 to 300 milliseconds.[http://en.wikipedia.org/wiki/Reflex]

In animals, reaction time to visual stimuli is typically 150 to 300 milliseconds.[http://en.wikipedia.org/wiki/Reflex]

[[Category: Biology]]

[[Category: Biology]]