Final answer:
The psychology field that aims to dissect the human mind into its smallest components is structuralism, established by Wilhelm Wundt, focusing on introspection and reaction times to stimuli. The correct option is a.
Step-by-step explanation:
The field of psychology that focuses on breaking down the human mind into the tiniest pieces possible is known as structuralism.
Developed primarily by Wilhelm Wundt, a structuralist believes that our cognitive experiences are best understood by dissecting them into their component parts, which can be accomplished through a method known as introspection.
Wundt established his approach at the University at Leipzig in 1879, where he conducted experiments that included measuring reaction times to various stimuli. The correct option is a.