<span>Reaction time<span>, which can either be
simple or complex refers to the time
needed for perception and evaluation of a stimulus and the time necessitating a response. A </span></span><span>complex reaction time
involves selecting a specific and correct response from several choices when
presented with several different stimuli.</span>
shang dynasty
because the existence of the Xia dynasty is debated, the shang dynasty is sometimes seen as the first of chains dynasty.The shang rurals maintained control for about 600 years. The period of the rule saw the invention of Chinese writing and may later historians viewed it as china's 'Golden Age'. In 1046 B.C.E.
<span>Cognition focuses on people's thoughts, desires, and motives.</span>
